0000950170-21-000879 | 10-Q | XBRL Viewer

Document and Entity Information - shares	6 Months Ended
Document and Entity Information - shares	Jun. 30, 2021	Aug. 04, 2021
Cover [Abstract]
Entity Registrant Name	KIRBY CORPORATION
Entity Central Index Key	0000056047
Current Fiscal Year End Date	--12-31
Document Type	10-Q
Amendment Flag	false
Document Quarterly Report	true
Document Period End Date	Jun. 30, 2021
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q2
Document Transition Report	false
Entity File Number	1-7615
Entity Incorporation, State or Country Code	NV
Entity Tax Identification Number	74-1884980
Entity Address, Address Line One	55 Waugh Drive
Entity Address, Address Line Two	Suite 1000
Entity Address, City or Town	Houston
Entity Address, State or Province	TX
Entity Address, Postal Zip Code	77007
City Area Code	713
Local Phone Number	435-1000
Title of 12(b) Security	Common Stock
Trading Symbol	KEX
Security Exchange Name	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		60,109,000

CONDENSED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents	$ 53,052	$ 80,338
Accounts receivable:
Trade - less allowance for doubtful accounts	352,372	315,283
Other	165,478	284,899
Inventories - net	325,545	309,675
Prepaid expenses and other current assets	66,696	57,776
Total current assets	963,143	1,047,971
Property and equipment	5,593,651	5,615,400
Accumulated depreciation	(1,730,845)	(1,698,330)
Property and equipment - net	3,862,806	3,917,070
Operating lease right-of-use assets	164,911	174,317
Goodwill	657,800	657,800
Other intangibles, net	64,397	68,979
Other assets	54,758	58,037
Total assets	5,767,815	5,924,174
Current liabilities:
Bank notes payable	1,417	40
Income taxes payable	497	474
Accounts payable	188,724	162,507
Accrued liabilities	231,603	224,855
Current portion of operating lease liabilities	31,963	32,750
Deferred revenues	44,018	45,406
Total current liabilities	498,222	466,032
Long-term debt, net - less current portion	1,274,262	1,468,546
Deferred income taxes	612,682	606,844
Operating lease liabilities - less current portion	153,457	163,496
Other long-term liabilities	123,863	131,703
Total long-term liabilities	2,164,264	2,370,589
Contingencies and commitments
Kirby stockholders' equity:
Common stock, $0.10 par value per share. Authorized 120,000,000 shares, issued 65,472,000 shares	6,547	6,547
Additional paid-in capital	848,081	844,979
Accumulated other comprehensive income - net	(57,683)	(61,452)
Retained earnings	2,600,208	2,593,393
Treasury stock - at cost, 5,366,000 shares at June 30, 2021 and 5,434,000 at December 31, 2020	(295,463)	(299,161)
Total Kirby stockholders' equity	3,101,690	3,084,306
Noncontrolling interests	3,639	3,247
Total equity	3,105,329	3,087,553
Total liabilities and equity	$ 5,767,815	$ 5,924,174

CONDENSED BALANCE SHEETS (Parenthetical) - $ / shares	Jun. 30, 2021	Dec. 31, 2020
Kirby stockholders' equity:
Common stock, par value per share (in dollars per share)	$ 0.10	$ 0.10
Common stock, shares authorized (in shares)	120,000,000	120,000,000
Common stock, shares issued (in shares)	65,472,000	65,472,000
Treasury stock, shares (in shares)	5,366,000	5,434,000

CONDENSED STATEMENTS OF EARNINGS - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
CONDENSED STATEMENTS OF EARNINGS - USD ($) $ in Thousands	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Revenues:
Total revenues	$ 559,624	$ 541,159	$ 1,056,474	$ 1,185,085
Costs and expenses:
Costs of sales and operating expenses	409,479	373,539	772,519	827,107
Selling, general and administrative	62,740	65,612	132,369	137,692
Taxes, other than on income	10,364	13,065	18,624	24,471
Depreciation and amortization	55,132	54,502	110,022	110,288
Impairments and other charges	0	0	0	561,274
(Gain) loss on disposition of assets	(2,119)	189	(4,252)	(303)
Total costs and expenses	535,596	506,907	1,029,282	1,660,529
Operating income (loss)	24,028	34,252	27,192	(475,444)
Other income	2,523	2,290	6,314	5,013
Interest expense	(10,706)	(12,708)	(21,672)	(25,507)
Earnings (loss) before taxes on income	15,845	23,834	11,834	(495,938)
(Provision) benefit for taxes on income	(5,493)	1,429	(4,602)	174,238
Net earnings (loss)	10,352	25,263	7,232	(321,700)
Less: Net earnings attributable to noncontrolling interests	(162)	(261)	(417)	(539)
Net earnings (loss) attributable to Kirby	$ 10,190	$ 25,002	$ 6,815	$ (322,239)
Net earning (loss) per share attributable to Kirby common stockholders:
Basic (in dollars per share)	$ 0.17	$ 0.42	$ 0.11	$ (5.38)
Diluted (in dollars per share)	$ 0.17	$ 0.42	$ 0.11	$ (5.38)
Marine Transportation [Member]
Revenues:
Total revenues	$ 332,887	$ 380,987	$ 633,838	$ 784,244
Distribution and Services [Member]
Revenues:
Total revenues	$ 226,737	$ 160,172	$ 422,636	$ 400,841

CONDENSED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
CONDENSED STATEMENTS OF COMPREHENSIVE INCOME [Abstract]
Net earnings (loss)	$ 10,352	$ 25,263	$ 7,232	$ (321,700)
Other comprehensive income (loss), net of taxes:
Pension and postretirement benefits	3,607	(2,477)	4,352	(2,395)
Foreign currency translation adjustments	(86)	351	(583)	(923)
Total other comprehensive income (loss), net of taxes	3,521	(2,126)	3,769	(3,318)
Total comprehensive income (loss), net of taxes	13,873	23,137	11,001	(325,018)
Net earnings attributable to noncontrolling interests	(162)	(261)	(417)	(539)
Comprehensive income (loss) attributable to Kirby	$ 13,711	$ 22,876	$ 10,584	$ (325,557)

- Definition

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income. Excludes changes in equity resulting from investments by owners and distributions to owners.

+ References + Details

- Definition

Amount after tax and reclassification adjustments of other comprehensive income (loss).

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CONDENSED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
CONDENSED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	Jun. 30, 2021	Jun. 30, 2020
Cash flows from operating activities:
Net earnings (loss)	$ 7,232	$ (321,700)
Adjustments to reconcile net earnings (loss) to net cash provided by operations
Depreciation and amortization	110,022	110,288
Provision (benefit) for deferred income taxes	4,380	(18,588)
Impairments and other charges	0	561,274
Amortization of unearned share-based compensation	9,148	8,652
Amortization of major maintenance costs	17,082	14,473
Other	(4,309)	3,513
Increase (decrease) in cash flows resulting from changes in operating assets and liabilities, net	54,263	(115,768)
Net cash provided by operating activities	197,818	242,144
Cash flows from investing activities:
Capital expenditures	(38,369)	(92,830)
Acquisitions of businesses and marine equipment	(7,470)	(342,247)
Proceeds from disposition of assets	16,731	4,918
Net cash used in investing activities	(29,108)	(430,159)
Cash flows from financing activities:
Borrowings (payments) on bank credit facilities, net	(193,623)	424,991
Payments on long-term debt	0	(150,000)
Proceeds from exercise of stock options	505	353
Payments related to tax withholding for share-based compensation	(2,853)	(3,191)
Return of investment to noncontrolling interest	(25)	(404)
Net cash provided by (used in) financing activities	(195,996)	271,749
Increase (decrease) in cash and cash equivalents	(27,286)	83,734
Cash and cash equivalents, beginning of year	80,338	24,737
Cash and cash equivalents, end of period	53,052	108,471
Cash paid (received) during the period:
Interest paid	20,913	26,265
Income taxes refunded, net	(116,451)	(37,704)
Operating cash outflow from operating leases	21,996	21,323
Non-cash investing activity:
Capital expenditures included in accounts payable	(18,401)	4,936
Right-of-use assets obtained in exchange for lease obligations	$ 7,413	$ 38,754

CONDENSED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Other Comprehensive Income, Net [Member]	Retained Earnings [Member]	Treasury Stock [Member]	Noncontrolling Interests [Member]
Beginning balance at Dec. 31, 2019	$ 3,371,592	$ 6,547	$ 835,899	$ (37,799)	$ 2,865,939	$ (301,963)	$ 2,969
Beginning balance (in shares) at Dec. 31, 2019		65,472				5,513
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock option exercises	353		26	0	0	$ 327	0
Stock option exercises (in shares)						15
Issuance of stock for equity awards, net of forfeitures	0		(5,703)	0	0	$ 5,703	0
Issuance of stock for equity awards, net of forfeitures (in shares)						103
Tax withholdings on equity award vesting	(3,191)					$ (3,191)	0
Tax withholdings on equity award vesting (in shares)						(39)
Amortization of unearned share-based compensation	8,652		8,652	0	0	$ 0	0
Total comprehensive income (loss), net of taxes	(325,018)			(3,318)	(322,239)	0	539
Return of investment to noncontrolling interests	(404)						(404)
Ending balance at Jun. 30, 2020	3,051,984	$ 6,547	838,874	(41,117)	2,543,700	$ (299,124)	3,104
Ending balance (in shares) at Jun. 30, 2020		65,472				5,434
Beginning balance at Mar. 31, 2020	3,025,754	$ 6,547	837,879	(38,991)	2,518,698	$ (301,424)	3,045
Beginning balance (in shares) at Mar. 31, 2020		65,472				5,475
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of stock for equity awards, net of forfeitures	0		(2,326)	0	0	$ 2,326	0
Issuance of stock for equity awards, net of forfeitures (in shares)						42
Tax withholdings on equity award vesting	(26)					$ (26)	0
Tax withholdings on equity award vesting (in shares)						(1)
Amortization of unearned share-based compensation	3,321		3,321	0	0	$ 0	0
Total comprehensive income (loss), net of taxes	23,137			(2,126)	25,002	0	261
Return of investment to noncontrolling interests	(202)						(202)
Ending balance at Jun. 30, 2020	3,051,984	$ 6,547	838,874	(41,117)	2,543,700	$ (299,124)	3,104
Ending balance (in shares) at Jun. 30, 2020		65,472				5,434
Beginning balance at Dec. 31, 2020	3,087,553	$ 6,547	844,979	(61,452)	2,593,393	$ (299,161)	3,247
Beginning balance (in shares) at Dec. 31, 2020		65,472				5,434
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock option exercises	505		30	0	0	$ 475	0
Stock option exercises (in shares)						10
Issuance of stock for equity awards, net of forfeitures	0		(6,076)	0	0	$ 6,076	0
Issuance of stock for equity awards, net of forfeitures (in shares)						110
Tax withholdings on equity award vesting	(2,853)					$ (2,853)	0
Tax withholdings on equity award vesting (in shares)						(52)
Amortization of unearned share-based compensation	9,148		9,148	0	0	$ 0	0
Total comprehensive income (loss), net of taxes	11,001			3,769	6,815	0	417
Return of investment to noncontrolling interests	(25)						(25)
Ending balance at Jun. 30, 2021	3,105,329	$ 6,547	848,081	(57,683)	2,600,208	$ (295,463)	3,639
Ending balance (in shares) at Jun. 30, 2021		65,472				5,366
Beginning balance at Mar. 31, 2021	3,088,744	$ 6,547	846,259	(61,204)	2,590,018	$ (296,353)	3,477
Beginning balance (in shares) at Mar. 31, 2021		65,472				5,384
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock option exercises	94		11	0	0	$ 83	0
Stock option exercises (in shares)						2
Issuance of stock for equity awards, net of forfeitures	0		(1,615)	0	0	$ 1,615	0
Issuance of stock for equity awards, net of forfeitures (in shares)						29
Tax withholdings on equity award vesting	(808)					$ (808)	0
Tax withholdings on equity award vesting (in shares)						(13)
Amortization of unearned share-based compensation	3,426		3,426	0	0	$ 0	0
Total comprehensive income (loss), net of taxes	13,873			3,521	10,190	0	162
Ending balance at Jun. 30, 2021	$ 3,105,329	$ 6,547	$ 848,081	$ (57,683)	$ 2,600,208	$ (295,463)	$ 3,639
Ending balance (in shares) at Jun. 30, 2021		65,472				5,366

Basis for Preparation of the Condensed Financial Statements

6 Months Ended

Jun. 30, 2021

Basis for Preparation of the Condensed Financial Statements [Abstract]

Basis for Preparation of the Condensed Financial Statements

(1) Basis for Preparation of the Condensed Financial Statements

The condensed financial statements included herein have been prepared by Kirby Corporation and its consolidated subsidiaries (the “Company”), without audit, pursuant to the rules and regulations of the Securities and Exchange Commission. Although the Company believes that the disclosures are adequate to make the information presented not misleading, certain information and footnote disclosures, including significant accounting policies normally included in annual financial statements, have been condensed or omitted pursuant to such rules and regulations. It is suggested that these condensed financial statements be read in conjunction with the Company’s Annual Report on Form 10-K for the year ended December 31, 2020. Certain reclassifications have been made to reflect the current presentation of financial information.

Accounting Standard Adoption

In December 2019, the Financial Accounting Standards Board issued Accounting Standards Update 2019-12, “Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes” (“ASU 2019-12”) which simplifies the accounting for income taxes by removing certain exceptions to the general principles in Topic 740, Income Taxes. The Company adopted ASU 2019-12 on January 1, 2021. There was no material impact on the Company’s financial statements or disclosures upon adoption of ASU 2019-12.

Acquisition

6 Months Ended

Jun. 30, 2021

Business Combinations [Abstract]

Acquisitions

(2) Acquisition

During the six months ended June 30, 2021, the Company purchased four inland tank barges from a leasing company for $7,470,000 in cash. The Company had been leasing the barges prior to the purchase.

Revenues

6 Months Ended

Jun. 30, 2021

Revenues [Abstract]

Revenues

(3) Revenues

The following table sets forth the Company’s revenues by major source (in thousands):


	Three months ended June 30,				Six months ended June 30,
	2021		2020		2021		2020
Marine transportation segment:
Inland transportation	$	253,588	$	303,012	$	478,039	$	621,577
Coastal transportation		79,299		77,975		155,799		162,667
	$	332,887	$	380,987	$	633,838	$	784,244
Distribution and services segment:
Commercial and industrial	$	140,966	$	129,548	$	273,874	$	291,539
Oil and gas		85,771		30,624		148,762		109,302
	$	226,737	$	160,172	$	422,636	$	400,841

Contract liabilities represent advance consideration received from customers, and are recognized as revenue over time as the related performance obligation is satisfied. Revenues recognized during the six months ended June 30, 2021 and 2020 that were included in the opening contract liability balances were $39,181,000 and $33,693,000, respectively. The Company presents all contract liabilities within the deferred revenues financial statement caption on the balance sheets. The Company did not have any contract assets at June 30, 2021 or December 31, 2020. The Company applies the practical expedient that allows non-disclosure of information about remaining performance obligations that have original expected durations of one year or less.

- Definition

The entire disclosure of revenue from contract with customer to transfer good or service and to transfer nonfinancial asset. Includes, but is not limited to, disaggregation of revenue, credit loss recognized from contract with customer, judgment and change in judgment related to contract with customer, and asset recognized from cost incurred to obtain or fulfill contract with customer. Excludes insurance and lease contracts.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-URI http://asc.fasb.org/topic&trid=49130388

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 10
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
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Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
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Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
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-URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130554-203045

+ Details

Segment Data

6 Months Ended

Jun. 30, 2021

Segment Data [Abstract]

Segment Data

(4) Segment Data

The Company’s operations are aggregated into two reportable business segments as follows:

Marine Transportation — Provides marine transportation by United States flagged vessels principally of liquid cargoes throughout the United States inland waterway system, along all three United States coasts, in Alaska and Hawaii and, to a lesser extent, in United States coastal transportation of dry-bulk cargoes. The principal products transported include petrochemicals, black oil, refined petroleum products and agricultural chemicals.

Distribution and Services — Provides after-market services and parts for engines, transmissions, reduction gears and related equipment used in oilfield service, marine, power generation, on-highway, and other industrial applications. The Company also rents equipment including generators, industrial compressors, railcar movers, and high capacity lift trucks for use in a variety of industrial markets, and manufactures and remanufactures oilfield service equipment, including pressure pumping units, for land-based oilfield service customers.

The Company’s two reportable business segments are managed separately based on fundamental differences in their operations. The Company evaluates the performance of its segments based on the contributions to operating income of the respective segments, before income taxes, interest, gains or losses on disposition of assets, other nonoperating income, noncontrolling interests, accounting changes, and nonrecurring items. Intersegment revenues, based on market-based pricing, of the distribution and services segment from the marine transportation segment of $7,254,000 and $12,157,000 for the three months and six months ended June 30, 2021, respectively, and $6,061,000 and $16,347,000 for the three months and six months ended June 30, 2020, respectively, as well as the related intersegment profit of $726,000 and $1,216,000 for the three months and six months ending June 30, 2021, respectively, and $606,000 and $1,635,000 for the three months and six months ended June 30, 2020, respectively, have been eliminated from the tables below.

The following tables set forth the Company’s revenues and profit or loss by reportable segment and total assets (in thousands):


	Three months ended June 30,						Six months ended June 30
	2021			2020			2021			2020
Revenues:
Marine transportation	$	332,887		$	380,987		$	633,838		$	784,244
Distribution and services		226,737			160,172			422,636			400,841
	$	559,624		$	541,159		$	1,056,474		$	1,185,085
Segment profit (loss):
Marine transportation	$	18,478		$	51,375		$	20,418		$	102,091
Distribution and services		6,156			(14,147	)		9,067			(10,429	)
Other		(8,789	)		(13,394	)		(17,651	)		(587,600	)
	$	15,845		$	23,834		$	11,834		$	(495,938	)


	June 30, 2021		December 31, 2020
Total assets:
Marine transportation	$	4,723,786	$	4,760,449
Distribution and services		832,497		805,831
Other		211,532		357,894
	$	5,767,815	$	5,924,174

The following table presents the details of “Other” segment loss (in thousands):


	Three months ended June 30,						Six months ended June 30,
	2021			2020			2021			2020
General corporate expenses	$	(2,725	)	$	(2,787	)	$	(6,545	)	$	(6,135	)
Gain (loss) on disposition of assets		2,119			(189	)		4,252			303
Impairments and other charges		—			—			—			(561,274	)
Interest expense		(10,706	)		(12,708	)		(21,672	)		(25,507	)
Other income		2,523			2,290			6,314			5,013
	$	(8,789	)	$	(13,394	)	$	(17,651	)	$	(587,600	)

The following table presents the details of “Other” total assets (in thousands):


	June 30, 2021		December 31, 2020
General corporate assets	$	209,670	$	355,205
Investment in affiliates		1,862		2,689
	$	211,532	$	357,894

- Definition

The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 31
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8924-108599

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
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-Paragraph 34
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8981-108599

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
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Reference 5: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
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-Name Accounting Standards Codification
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Reference 8: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
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Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 13: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 14: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-URI http://asc.fasb.org/topic&trid=2134510

+ Details

Long-Term Debt

6 Months Ended

Jun. 30, 2021

Long-Term Debt [Abstract]

Long-Term Debt

(5) Long-Term Debt

The following table presents the carrying value and fair value (determined using inputs characteristic of a Level 2 fair value measurement) of debt outstanding (in thousands):


	June 30, 2021					December 31, 2020
	Carrying Value			Fair Value		Carrying Value			Fair Value
Revolving Credit Facility (a)	$	55,000		$	55,000	$	250,000		$	250,000
Term Loan (a)		375,000			375,000		375,000			375,000
3.29% senior notes due February 27, 2023		350,000			361,800		350,000			364,538
4.2% senior notes due March 1, 2028		500,000			558,551		500,000			581,115
Credit line due June 30, 2022		—			—		—			—
Bank notes payable		1,417			1,417		40			40
		1,281,417			1,351,768		1,475,040			1,570,693
Unamortized debt discounts and issuance costs		(5,738	)		—		(6,454	)		—
	$	1,275,679		$	1,351,768	$	1,468,586		$	1,570,693

(a)

Variable interest rate of 1.5% at both June 30, 2021 and December 31, 2020.

The following table presents borrowings and payments under the bank credit facilities (in thousands):


	Six Months Ended June 30,
	2021			2020
Borrowings on bank credit facilities	$	2,365		$	582,038
Payments on bank credit facilities		(195,988	)		(157,047	)
	$	(193,623	)	$	424,991

The Company has an amended and restated credit agreement (the “Credit Agreement”) with a group of commercial banks, with JPMorgan Chase Bank, N.A. as the administrative agent bank, allowing for an $850,000,000 unsecured revolving credit facility (“Revolving Credit Facility”) and an unsecured term loan (“Term Loan”) with a maturity date of March 27, 2024. The Term Loan is repayable in quarterly installments currently scheduled to commence September 30, 2023, with $343,750,000 due on March 27, 2024. The Term Loan is prepayable, in whole or in part, without penalty. Outstanding letters of credit under the Revolving Credit Facility were $5,063,000 and available borrowing capacity was $789,937,000 as of June 30, 2021. Outstanding letters of credit under the $10,000,000 credit line were $1,299,000 and available borrowing capacity was $8,701,000 as of June 30, 2021.

Leases

6 Months Ended

Jun. 30, 2021

Leases [Abstract]

Leases

(6) Leases

The Company currently leases various facilities and equipment under cancelable and noncancelable operating leases. The accounting for the Company’s leases may require judgments, which include determining whether a contract contains a lease, allocating between lease and non-lease components, and determining the incremental borrowing rates. Leases with an initial noncancelable term of 12 months or less are not recorded on the balance sheet and related lease expense is recognized on a straight-line basis over the lease term. The Company has also elected to combine lease and non-lease components on all classes of leased assets, except for leased towing vessels, for which the Company estimates approximately 70% of the costs relate to service costs and other non-lease components. Variable lease costs relate primarily to real estate executory costs (i.e. taxes, insurance and maintenance).

Future minimum lease payments under operating leases that have initial noncancelable lease terms in excess of one year were as follows (in thousands):


	June 30, 2021			December 31, 2020
2021	$	20,296		$	40,224
2022		34,859			33,543
2023		29,675			28,012
2024		24,032			23,578
2025		21,606			21,261
Thereafter		97,885			96,491
Total lease payments		228,353			243,109
Less: imputed interest		(42,933	)		(46,863	)
Operating lease liabilities	$	185,420		$	196,246

The following table summarizes lease costs (in thousands):


	Three months ended June 30,						Six months ended June 30,
	2021			2020			2021			2020
Operating lease cost	$	10,680		$	11,873		$	21,072		$	20,914
Variable lease cost		206			444			915			596
Short-term lease cost		4,015			5,076			7,068			13,353
Sublease income		(306	)		(130	)		(580	)		(374	)
	$	14,595		$	17,263		$	28,475		$	34,489

The following table summarizes other supplemental information about the Company’s operating leases:


	June 30, 2021			December 31, 2020
Weighted average discount rate		4.1	%		4.1	%
Weighted average remaining lease term	10 years			10 years

Impairments and Other Charges

6 Months Ended

Jun. 30, 2021

Impairments and Other Charges [Abstract]

Impairments and Other Charges

(7) Impairments and Other Charges

During the 2020 first quarter, Kirby’s market capitalization declined significantly compared to the 2019 fourth quarter. Over the same period, the overall United States stock market also declined significantly amid market volatility. In addition, as a result of uncertainty surrounding the outbreak of COVID-19 and a sharp decline in oil prices during the 2020 first quarter, many of the Company’s oil and gas customers responded by quickly cutting 2020 capital spending budgets and activity levels quickly declined. Lower activity levels resulted in a decline in drilling activity, resulting in lower demand for new and remanufactured oilfield equipment and related parts and service in the distribution and services segment. As a result, the Company concluded that a triggering event had occurred and performed interim quantitative impairment tests as of March 31, 2020 for certain of the distribution and services segment’s long-lived assets and goodwill.

The Company determined the estimated fair value of such long-lived assets and reporting units using a discounted cash flow analysis and a market approach for comparable companies. This analysis included management’s judgment regarding short-term and long-term internal forecasts, updated for recent events, appropriate discount rates, and capital expenditures using inputs characteristic of a Level 3 fair value measurement.

In performing the impairment test of long-lived assets within the distribution and services segment, the Company determined that the carrying value of certain long-lived assets, including property and equipment as well as intangible assets associated with customer relationships, tradenames, and distributorships, were no longer recoverable, resulting in an impairment charge of $165,304,000 (including $148,909,000 impairment of intangible assets other than goodwill and $16,395,000 impairment of property and equipment) to reduce such long-lived assets to fair value during the three months ended March 31, 2020.

Based upon the results of the goodwill impairment test, the Company concluded that the carrying value of one reporting unit in the distribution and services segment exceeded its estimated fair value. For the three months ended March 31, 2020, the goodwill impairment charge of $387,970,000 was calculated as the amount that the carrying value of the reporting unit, including goodwill, and after recording impairments of long-lived assets identified above, exceeded its estimated fair value, incorporating all tax impacts caused by the recognition of the impairment loss.

In addition, the Company determined cost exceeded net realizable value for certain oilfield and pressure pumping related inventory, resulting in an $8,000,000 non-cash write-down during the three months ended March 31, 2020.

Stock Award Plans

6 Months Ended

Jun. 30, 2021

Stock Award Plans [Abstract]

Stock Award Plans

(8) Stock Award Plans

The compensation cost that has been charged against earnings for the Company’s stock award plans and the income tax benefit recognized in the statement of earnings for stock awards were as follows (in thousands):


	Three months ended June 30,				Six months ended June 30,
	2021		2020		2021		2020
Compensation cost	$	3,426	$	3,321	$	9,148	$	8,652
Income tax benefit	$	1,320	$	889	$	2,592	$	2,151

On March 1, 2021, subject to stockholder approval, the Board of Directors approved amendments to the Company’s 2005 Stock and Incentive Plan (the “Plan”) to, among other things, add 1,400,000 shares of availability. The amendment to the Plan was subsequently approved at the Annual Meeting of Stockholders on April 27, 2021. At June 30, 2021, there were 2,225,222 shares available for future grants under the Plan.

During the six months ended June 30, 2021, the Company granted 311,016 restricted stock units (“RSUs”) to selected officers and other key employees under the Plan, the majority of which vest ratably over five years.

During the six months ended June 30, 2021, the Company granted 27,120 shares of restricted stock to nonemployee directors of the Company under the director stock award plan. The restricted stock vests six months after the date of grant except that restricted stock granted in lieu of cash director fees vests in equal quarterly increments through March 31, 2022.

Taxes on Income

6 Months Ended

Jun. 30, 2021

Taxes on Income [Abstract]

Taxes on Income

(9) Taxes on Income

On March 27, 2020, the United States Congress passed and the President signed the Coronavirus Aid, Relief, and Economic Security Act (“CARES Act”) into law to address the COVID-19 pandemic. One provision of the CARES Act allowed net operating losses generated in 2018 through 2020 to be carried back up to five years. Pursuant to this provision of the CARES Act, the Company recorded a net federal current benefit for taxes on income for the three months ended June 30, 2020 due to carrying back net operating losses generated between 2018 and 2020 used to offset taxable income generated between 2013 and 2017. Net operating losses carried back to tax years 2013 through 2017 were applied at a federal tax rate of 35% applicable to those tax years, compared to a 21% tax rate effective at June 30, 2020. Net operating losses generated in 2018 and 2019 were used to offset taxable income generated between 2013 and 2017 taxed at 35% resulting in a tax benefit of $50,824,000.

At June 30, 2021 and December 31, 2020, the Company had a federal income tax receivable of $70,528,000 and $188,177,000, respectively, included in Accounts Receivable – Other on the balance sheets. During the three months ended March 31, 2021, the Company received a tax refund of $119,493,000, including accrued interest, for its 2019 federal tax return related to net operating losses being carried back to offset taxable income generated between 2014 and 2017.

Earnings (loss) before taxes on income and details of the provision (benefit) for taxes on income were as follows (in thousands):


	Three months ended June 30,					Six months ended June 30,
	2021		2020			2021			2020
Earnings (loss) before taxes on income:
United States	$	15,811	$	23,861		$	12,192		$	(495,628	)
Foreign		34		(27	)		(358	)		(310	)
	$	15,845	$	23,834		$	11,834		$	(495,938	)
Provision (benefit) for taxes on income:
Federal:
Current	$	—	$	(18,608	)	$	—		$	(156,304	)
Deferred		3,407		16,149			2,804			(7,294	)
State and local:
Current		573		536			215			618
Deferred		1,506		505			1,576			(11,294	)
Foreign - current		7		(11	)		7			36
	$	5,493	$	(1,429	)	$	4,602		$	(174,238	)

- Definition

The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.

+ References + Details

Earnings Per Share

6 Months Ended

Jun. 30, 2021

Earnings Per Share [Abstract]

Earnings Per Share

(10) Earnings Per Share

The following table presents the components of basic and diluted earnings (loss) per share (in thousands, except per share amounts):


	Three months ended June 30,						Six months ended June 30,
	2021			2020			2021			2020
Net earnings (loss) attributable to Kirby	$	10,190		$	25,002		$	6,815		$	(322,239	)
Undistributed earnings allocated to restricted shares		(8	)		(46	)		(6	)		—
Earnings (loss) available to Kirby common stockholders – basic		10,182			24,956			6,809			(322,239	)
Undistributed earnings allocated to restricted shares		8			46			6			—
Undistributed earnings reallocated to restricted shares		(8	)		(46	)		(6	)		—
Earnings (loss) available to Kirby common stockholders – diluted	$	10,182		$	24,956		$	6,809		$	(322,239	)

Shares outstanding:
Weighted average common stock issued and outstanding		60,101			60,023			60,088			60,003
Weighted average unvested restricted stock		(48	)		(111	)		(53	)		(105	)
Weighted average common stock outstanding – basic		60,053			59,912			60,035			59,898
Dilutive effect of stock options and restricted stock units		221			25			185			—
Weighted average common stock outstanding – diluted		60,274			59,937			60,220			59,898

Net earnings (loss) per share attributable to Kirby common stockholders:
Basic	$	0.17		$	0.42		$	0.11		$	(5.38	)
Diluted	$	0.17		$	0.42		$	0.11		$	(5.38	)

Certain outstanding options to purchase approximately 550,000 and 681,000 shares of common stock were excluded in the computation of diluted earnings per share as of June 30, 2021 and 2020, respectively, as such stock options would have been antidilutive. Certain outstanding RSUs to convert to 5,000 and 162,000 shares of common stock were also excluded in the computation of diluted earnings per share as of June 30, 2021 and 2020, respectively, as such RSUs would have been antidilutive.

Inventories

6 Months Ended

Jun. 30, 2021

Inventories [Abstract]

Inventories

(11) Inventories

The following table presents the details of inventories – net (in thousands):


	June 30, 2021		December 31, 2020
Finished goods	$	257,426	$	255,491
Work in process		68,119		54,184
	$	325,545	$	309,675

Retirement Plans

6 Months Ended

Jun. 30, 2021

Retirement Plans [Abstract]

Retirement Plans

(12) Retirement Plans

The Company sponsors a defined benefit plan for certain of its inland vessel personnel and shore based tankermen. The plan benefits are based on an employee’s years of service and compensation. The plan assets consist primarily of equity and fixed income securities.

On April 12, 2017, the Company amended its pension plan to cease all benefit accruals for periods after May 31, 2017 for certain participants. Participants grandfathered and not impacted were those, as of the close of business on May 31, 2017, who either (a) had completed 15 years of pension service or (b) had attained age 50 and completed 10 years of pension service. Participants non-grandfathered are eligible to receive discretionary 401(k) plan contributions.

The Company’s pension plan funding strategy is to make annual contributions in amounts equal to or greater than amounts necessary to meet minimum government funding requirements. The plan’s benefit obligations are based on a variety of demographic and economic assumptions, and the pension plan assets’ returns are subject to various risks, including market and interest rate risk, making an accurate prediction of the pension plan contribution difficult. Based on current pension plan assets and market conditions, the Company does not expect to make a contribution to the Kirby pension plan during 2021.

On February 14, 2018, with the acquisition of Higman Marine, Inc. and its affiliated companies (“Higman”), the Company assumed Higman’s pension plan for its inland vessel personnel and office staff. On March 27, 2018, the Company amended the Higman pension plan to close it to all new entrants and cease all benefit accruals for periods after May 15, 2018 for all participants. The Company made a contribution of $479,000 to the Higman pension plan during the six months ended June 30, 2021. The Company does not expect to make any additional contributions during 2021.

The Company sponsors an unfunded defined benefit health care plan that provides limited postretirement medical benefits to employees who meet minimum age and service requirements, and to eligible dependents. The plan limits cost increases in the Company’s contribution to 4% per year. The plan is contributory, with retiree contributions adjusted annually. The plan eliminated coverage for future retirees as of December 31, 2011. The Company also has an unfunded defined benefit supplemental executive retirement plan (“SERP”) that was assumed in an acquisition in 1999. That plan ceased to accrue additional benefits effective January 1, 2000.

The components of net periodic benefit cost for the Company’s defined benefit plans were as follows (in thousands):


	Pension Benefits
	Pension Plans						SERP
	Three months ended June 30,						Three months ended June 30,
	2021			2020			2021		2020
Components of net periodic benefit cost:
Service cost	$	2,053		$	1,919		$	—	$	—
Interest cost		3,535			3,949			7		10
Expected return on plan assets		(6,559	)		(5,735	)		—		—
Amortization of actuarial loss		790			425			10		9
Net periodic benefit cost	$	(181	)	$	558		$	17	$	19


	Pension Benefits
	Pension Plans						SERP
	Six months ended June 30,						Six months ended June 30,
	2021			2020			2021		2020
Components of net periodic benefit cost:
Service cost	$	3,980		$	3,836		$	—	$	—
Interest cost		7,119			7,839			15		20
Expected return on plan assets		(13,133	)		(11,923	)		—		—
Amortization of actuarial loss		1,888			657			20		18
Net periodic benefit cost	$	(146	)	$	409		$	35	$	38

The components of net periodic benefit cost for the Company’s postretirement benefit plan were as follows (in thousands):


	Other Postretirement Benefits
	Postretirement Welfare Plan
	Three months ended June 30,						Six months ended June 30,
	2021			2020			2021			2020
Components of net periodic benefit cost:
Service cost	$	—		$	—		$	—		$	—
Interest cost		4			5			8			11
Amortization of actuarial gain		(112	)		(130	)		(225	)		(261	)
Net periodic benefit cost	$	(108	)	$	(125	)	$	(217	)	$	(250	)

- Definition

The entire disclosure for retirement benefits.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 55
-Paragraph 17
-URI http://asc.fasb.org/extlink&oid=118257860&loc=d3e4179-114921

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section S99
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=21916913&loc=d3e273930-122802

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (d)(i)
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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
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Reference 5: http://www.xbrl.org/2003/role/disclosureRef
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Reference 6: http://www.xbrl.org/2003/role/disclosureRef
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-URI http://asc.fasb.org/extlink&oid=49170846&loc=d3e28014-114942

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-URI http://asc.fasb.org/topic&trid=2235017

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
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-Paragraph 3
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=6414203&loc=d3e39689-114964

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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-Paragraph 1
-Subparagraph (d)(iv)(03)
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Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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-Paragraph 1
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Reference 11: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 12: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 13: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
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-URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920

Reference 14: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (r)(2)
-URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920

+ Details

Other Comprehensive Income

6 Months Ended

Jun. 30, 2021

Other Comprehensive Income [Abstract]

Other Comprehensive Income

(13) Other Comprehensive Income

The Company’s changes in other comprehensive income (loss) were as follows (in thousands):


	Three months ended June 30,
	2021									2020
	Gross Amount			Income Tax Provision			Net Amount			Gross Amount			Income Tax (Provision) Benefit			Net Amount
Pension and postretirement benefits (a):
Amortization of net actuarial loss	$	688		$	(174	)	$	514		$	304		$	(77	)	$	227
Actuarial gains (losses)		4,128			(1,035	)		3,093			(3,609	)		905			(2,704	)
Foreign currency translation		(86	)		—			(86	)		351			—			351
Total	$	4,730		$	(1,209	)	$	3,521		$	(2,954	)	$	828		$	(2,126	)


	Six months ended June 30,
	2021									2020
	Gross Amount			Income Tax Provision			Net Amount			Gross Amount			Income Tax (Provision) Benefit			Net Amount
Pension and postretirement benefits (a):
Amortization of net actuarial loss	$	1,683		$	(424	)	$	1,259		$	414		$	(105	)	$	309
Actuarial gains (losses)		4,128			(1,035	)		3,093			(3,609	)		905			(2,704	)
Foreign currency translation		(583	)		—			(583	)		(923	)		—			(923	)
Total	$	5,228		$	(1,459	)	$	3,769		$	(4,118	)	$	800		$	(3,318	)

(a) Actuarial gains (losses) are amortized into other income (expense). (See Note 12, Retirement Plans)

Contingencies and Commitments

6 Months Ended

Jun. 30, 2021

Contingencies and Commitments [Abstract]

Contingencies

(14) Contingencies and Commitments

On May 10, 2019, two tank barges and a towboat, the M/V Voyager, owned and operated by Kirby Inland Marine, LP (“Kirby Inland Marine”), a wholly owned subsidiary of the Company, were struck by the LPG tanker, the Genesis River, in the Houston Ship Channel. The bow of the Genesis River penetrated the Kirby 30015T and capsized the MMI 3014. The collision penetrated the hull of the Kirby 30015T causing its cargo, reformate, to be discharged into the water. The United States Coast Guard (“USCG”) and the National Transportation Safety Board (“NTSB”) designated the owner and pilot of the Genesis River as well as the subsidiary of the Company as parties of interest in their investigation into the cause of the incident. On June 19, 2019, the Company filed a limitation action in the U.S. District Court of the Southern District of Texas ‑ Galveston Division seeking limitation of liability and asserting that the Genesis River and her owner/manager are at fault for damages including removal costs and claims under the Oil Pollution Act of 1990 and maritime law. Multiple claimants have filed claims in the limitation seeking damages under the Oil Pollution Act of 1990. The court bifurcated the matter into two trials, the first to determine liability amongst the parties and the second to assess damages. The Company entered into a settlement agreement resolving claims of natural resource damage arising out of the spill. Under the agreement, the Company agreed to pay state and federal natural resource trustees $2,102,000. The agreement will be final following Court approval. The liability trial was conducted during the week of February 2, 2021. The Court issued its decision on July 8, 2021, finding that the Genesis River was solely at fault and no liability on the part of Kirby Inland Marine. No appeal has been filed. The NTSB issued a report dated March 10, 2021 of its investigation of the incident. The NTSB determined that the probable cause of the collision was the Genesis River pilot’s decision to transit at sea speed, out of maneuvering mode, which increased the hydrodynamic effects of the channel banks, reduced his ability to maintain control of the vessel after meeting another deep-draft vessel, and resulted in the Genesis River’s sheering across the channel toward the tow. Among the NTSB’s conclusions, it found that the actions of the M/V Voyager relief captain to attempt to avoid the collision by crossing the channel were reasonable, given the information available to him at the time he had to make the decision to maneuver. The Company has various insurance policies covering liabilities including pollution, marine and general liability and believes that it has satisfactory insurance coverage for the potential liabilities arising from the incident. The Company believes its accrual of such estimated liability is adequate for the incident and does not expect the incident to have a material adverse effect on its business or financial condition.

On October 13, 2016, the tug Nathan E. Stewart and barge DBL 55, an articulated tank barge and tugboat unit (“ATB”) owned and operated by Kirby Offshore Marine, LLC, a wholly owned subsidiary of the Company, ran aground at the entrance to Seaforth Channel on Atholone Island, British Columbia. The grounding resulted in a breach of a portion of the Nathan E. Stewart’s fuel tanks causing a discharge of diesel fuel into the water. The USCG and the NTSB designated the Company as a party of interest in their investigation as to the cause of the incident. The Canadian authorities including Transport Canada and the Canadian Transportation Safety Board investigated the cause of the incident. On October 10, 2018, the Heiltsuk First Nation filed a civil action in the British Columbia Supreme Court against a subsidiary of the Company, the master and pilot of the tug, the vessels and the Canadian government seeking unquantified damages as a result of the incident. On May 1, 2019, the Company filed a limitation action in the Federal Court of Canada seeking limitation of liability relating to the incident as provided under admiralty law. The Heiltsuk First Nation’s civil claim has been consolidated into the Federal Court limitation action as of July 26, 2019 and it is expected that the Federal Court of Canada will decide all claims against the Company. The Company is unable to estimate the potential exposure in the civil proceeding. The Company has various insurance policies covering liabilities including pollution, property, marine and general liability and believes that it has satisfactory insurance coverage for the cost of cleanup and salvage operations as well as other potential liabilities arising from the incident. The Company believes its accrual of such estimated liability is adequate for the incident and does not expect the incident to have a material adverse effect on its business or financial condition.

On March 22, 2014, two tank barges and a towboat, the M/V Miss Susan, owned by Kirby Inland Marine, were involved in a collision with the M/S Summer Wind on the Houston Ship Channel near Texas City, Texas. The lead tank barge was damaged in the collision resulting in a discharge of intermediate fuel oil from one of its cargo tanks. The Company is participating in the natural resource damage assessment and restoration process with federal and state government natural resource trustees. The Company believes it has adequate insurance coverage for pollution, marine and other potential liabilities arising from the incident. The Company believes its accrual of such estimated liability is adequate for the incident and does not expect the incident to have a material adverse effect on its business or financial condition.

In addition, the Company is involved in various legal and other proceedings which are incidental to the conduct of its business, none of which in the opinion of management will have a material effect on the Company’s financial condition, results of operations, or cash flows. Management believes its accrual of such estimated liability is adequate and believes that it has adequate insurance coverage or has meritorious defenses for these other claims and contingencies.

The Company has issued guaranties or obtained standby letters of credit and performance bonds supporting performance by the Company and its subsidiaries of contractual or contingent legal obligations of the Company and its subsidiaries incurred in the ordinary course of business. The aggregate notional value of these instruments is $23,396,000 at June 30, 2021, including $13,878,000 in letters of credit and $9,518,000 in performance bonds. All of these instruments have an expiration date within three years. The Company does not believe demand for payment under these instruments is likely and expects no material cash outlays to occur regarding these instruments.

Basis for Preparation of the Condensed Financial Statements (Policies)

6 Months Ended

Jun. 30, 2021

Basis for Preparation of the Condensed Financial Statements [Abstract]

Accounting Standards Adoption

Accounting Standard Adoption

Revenues (Tables)

6 Months Ended

Jun. 30, 2021

Revenues [Abstract]

Revenues by Major Source

The following table sets forth the Company’s revenues by major source (in thousands):


	Three months ended June 30,				Six months ended June 30,
	2021		2020		2021		2020
Marine transportation segment:
Inland transportation	$	253,588	$	303,012	$	478,039	$	621,577
Coastal transportation		79,299		77,975		155,799		162,667
	$	332,887	$	380,987	$	633,838	$	784,244
Distribution and services segment:
Commercial and industrial	$	140,966	$	129,548	$	273,874	$	291,539
Oil and gas		85,771		30,624		148,762		109,302
	$	226,737	$	160,172	$	422,636	$	400,841

Segment Data (Tables)

6 Months Ended

Jun. 30, 2021

Segment Data [Abstract]

Segment Reporting Information, by Segment

The following tables set forth the Company’s revenues and profit or loss by reportable segment and total assets (in thousands):


	Three months ended June 30,						Six months ended June 30
	2021			2020			2021			2020
Revenues:
Marine transportation	$	332,887		$	380,987		$	633,838		$	784,244
Distribution and services		226,737			160,172			422,636			400,841
	$	559,624		$	541,159		$	1,056,474		$	1,185,085
Segment profit (loss):
Marine transportation	$	18,478		$	51,375		$	20,418		$	102,091
Distribution and services		6,156			(14,147	)		9,067			(10,429	)
Other		(8,789	)		(13,394	)		(17,651	)		(587,600	)
	$	15,845		$	23,834		$	11,834		$	(495,938	)


	June 30, 2021		December 31, 2020
Total assets:
Marine transportation	$	4,723,786	$	4,760,449
Distribution and services		832,497		805,831
Other		211,532		357,894
	$	5,767,815	$	5,924,174

Other Segment Reporting Information

The following table presents the details of “Other” segment loss (in thousands):


	Three months ended June 30,						Six months ended June 30,
	2021			2020			2021			2020
General corporate expenses	$	(2,725	)	$	(2,787	)	$	(6,545	)	$	(6,135	)
Gain (loss) on disposition of assets		2,119			(189	)		4,252			303
Impairments and other charges		—			—			—			(561,274	)
Interest expense		(10,706	)		(12,708	)		(21,672	)		(25,507	)
Other income		2,523			2,290			6,314			5,013
	$	(8,789	)	$	(13,394	)	$	(17,651	)	$	(587,600	)

The following table presents the details of “Other” total assets (in thousands):


	June 30, 2021		December 31, 2020
General corporate assets	$	209,670	$	355,205
Investment in affiliates		1,862		2,689
	$	211,532	$	357,894

Long-Term Debt (Tables)

6 Months Ended

Jun. 30, 2021

Long-Term Debt [Abstract]

Carrying Values and Fair Values of Debt Outstanding

The following table presents the carrying value and fair value (determined using inputs characteristic of a Level 2 fair value measurement) of debt outstanding (in thousands):


	June 30, 2021					December 31, 2020
	Carrying Value			Fair Value		Carrying Value			Fair Value
Revolving Credit Facility (a)	$	55,000		$	55,000	$	250,000		$	250,000
Term Loan (a)		375,000			375,000		375,000			375,000
3.29% senior notes due February 27, 2023		350,000			361,800		350,000			364,538
4.2% senior notes due March 1, 2028		500,000			558,551		500,000			581,115
Credit line due June 30, 2022		—			—		—			—
Bank notes payable		1,417			1,417		40			40
		1,281,417			1,351,768		1,475,040			1,570,693
Unamortized debt discounts and issuance costs		(5,738	)		—		(6,454	)		—
	$	1,275,679		$	1,351,768	$	1,468,586		$	1,570,693

(a)

Variable interest rate of 1.5% at both June 30, 2021 and December 31, 2020.

Borrowings and Payments Under the Bank Credit Facilities

The following table presents borrowings and payments under the bank credit facilities (in thousands):


	Six Months Ended June 30,
	2021			2020
Borrowings on bank credit facilities	$	2,365		$	582,038
Payments on bank credit facilities		(195,988	)		(157,047	)
	$	(193,623	)	$	424,991

Leases (Tables)

6 Months Ended

Jun. 30, 2021

Leases [Abstract]

Future Minimum Lease Payments under Operating Leases

Future minimum lease payments under operating leases that have initial noncancelable lease terms in excess of one year were as follows (in thousands):


	June 30, 2021			December 31, 2020
2021	$	20,296		$	40,224
2022		34,859			33,543
2023		29,675			28,012
2024		24,032			23,578
2025		21,606			21,261
Thereafter		97,885			96,491
Total lease payments		228,353			243,109
Less: imputed interest		(42,933	)		(46,863	)
Operating lease liabilities	$	185,420		$	196,246

Lease Cost

The following table summarizes lease costs (in thousands):


	Three months ended June 30,						Six months ended June 30,
	2021			2020			2021			2020
Operating lease cost	$	10,680		$	11,873		$	21,072		$	20,914
Variable lease cost		206			444			915			596
Short-term lease cost		4,015			5,076			7,068			13,353
Sublease income		(306	)		(130	)		(580	)		(374	)
	$	14,595		$	17,263		$	28,475		$	34,489

Operating Leases, Weighted Average Discount Rate and Remaining Lease Term

The following table summarizes other supplemental information about the Company’s operating leases:


	June 30, 2021			December 31, 2020
Weighted average discount rate		4.1	%		4.1	%
Weighted average remaining lease term	10 years			10 years

Stock Award Plans (Tables)

6 Months Ended

Jun. 30, 2021

Stock Award Plans [Abstract]

Compensation Cost Breakdown in Statement of Earnings


	Three months ended June 30,				Six months ended June 30,
	2021		2020		2021		2020
Compensation cost	$	3,426	$	3,321	$	9,148	$	8,652
Income tax benefit	$	1,320	$	889	$	2,592	$	2,151

Taxes on Income (Tables)

6 Months Ended

Jun. 30, 2021

Taxes on Income [Abstract]

Earnings (loss) before taxes

Earnings (loss) before taxes on income and details of the provision (benefit) for taxes on income were as follows (in thousands):


	Three months ended June 30,					Six months ended June 30,
	2021		2020			2021			2020
Earnings (loss) before taxes on income:
United States	$	15,811	$	23,861		$	12,192		$	(495,628	)
Foreign		34		(27	)		(358	)		(310	)
	$	15,845	$	23,834		$	11,834		$	(495,938	)
Provision (benefit) for taxes on income:
Federal:
Current	$	—	$	(18,608	)	$	—		$	(156,304	)
Deferred		3,407		16,149			2,804			(7,294	)
State and local:
Current		573		536			215			618
Deferred		1,506		505			1,576			(11,294	)
Foreign - current		7		(11	)		7			36
	$	5,493	$	(1,429	)	$	4,602		$	(174,238	)

Earnings Per Share (Tables)

6 Months Ended

Jun. 30, 2021

Earnings Per Share [Abstract]

Basic and Diluted Loss per Share

The following table presents the components of basic and diluted earnings (loss) per share (in thousands, except per share amounts):


	Three months ended June 30,						Six months ended June 30,
	2021			2020			2021			2020
Net earnings (loss) attributable to Kirby	$	10,190		$	25,002		$	6,815		$	(322,239	)
Undistributed earnings allocated to restricted shares		(8	)		(46	)		(6	)		—
Earnings (loss) available to Kirby common stockholders – basic		10,182			24,956			6,809			(322,239	)
Undistributed earnings allocated to restricted shares		8			46			6			—
Undistributed earnings reallocated to restricted shares		(8	)		(46	)		(6	)		—
Earnings (loss) available to Kirby common stockholders – diluted	$	10,182		$	24,956		$	6,809		$	(322,239	)

Shares outstanding:
Weighted average common stock issued and outstanding		60,101			60,023			60,088			60,003
Weighted average unvested restricted stock		(48	)		(111	)		(53	)		(105	)
Weighted average common stock outstanding – basic		60,053			59,912			60,035			59,898
Dilutive effect of stock options and restricted stock units		221			25			185			—
Weighted average common stock outstanding – diluted		60,274			59,937			60,220			59,898

Net earnings (loss) per share attributable to Kirby common stockholders:
Basic	$	0.17		$	0.42		$	0.11		$	(5.38	)
Diluted	$	0.17		$	0.42		$	0.11		$	(5.38	)

Inventories (Tables)

6 Months Ended

Jun. 30, 2021

Inventories [Abstract]

Details of Inventories

The following table presents the details of inventories – net (in thousands):


	June 30, 2021		December 31, 2020
Finished goods	$	257,426	$	255,491
Work in process		68,119		54,184
	$	325,545	$	309,675

Retirement Plans (Tables)

6 Months Ended

Jun. 30, 2021

Defined Benefit Plan Disclosure [Line Items]

Net Periodic Benefit Cost

The components of net periodic benefit cost for the Company’s defined benefit plans were as follows (in thousands):


	Pension Benefits
	Pension Plans						SERP
	Three months ended June 30,						Three months ended June 30,
	2021			2020			2021		2020
Components of net periodic benefit cost:
Service cost	$	2,053		$	1,919		$	—	$	—
Interest cost		3,535			3,949			7		10
Expected return on plan assets		(6,559	)		(5,735	)		—		—
Amortization of actuarial loss		790			425			10		9
Net periodic benefit cost	$	(181	)	$	558		$	17	$	19


	Pension Benefits
	Pension Plans						SERP
	Six months ended June 30,						Six months ended June 30,
	2021			2020			2021		2020
Components of net periodic benefit cost:
Service cost	$	3,980		$	3,836		$	—	$	—
Interest cost		7,119			7,839			15		20
Expected return on plan assets		(13,133	)		(11,923	)		—		—
Amortization of actuarial loss		1,888			657			20		18
Net periodic benefit cost	$	(146	)	$	409		$	35	$	38

Other Postretirement Benefits [Member]

Defined Benefit Plan Disclosure [Line Items]

Net Periodic Benefit Cost

The components of net periodic benefit cost for the Company’s postretirement benefit plan were as follows (in thousands):


	Other Postretirement Benefits
	Postretirement Welfare Plan
	Three months ended June 30,						Six months ended June 30,
	2021			2020			2021			2020
Components of net periodic benefit cost:
Service cost	$	—		$	—		$	—		$	—
Interest cost		4			5			8			11
Amortization of actuarial gain		(112	)		(130	)		(225	)		(261	)
Net periodic benefit cost	$	(108	)	$	(125	)	$	(217	)	$	(250	)

Other Comprehensive Income (Tables)

6 Months Ended

Jun. 30, 2021

Other Comprehensive Income [Abstract]

Changes in Other Comprehensive Income (Loss)

The Company’s changes in other comprehensive income (loss) were as follows (in thousands):


	Three months ended June 30,
	2021									2020
	Gross Amount			Income Tax Provision			Net Amount			Gross Amount			Income Tax (Provision) Benefit			Net Amount
Pension and postretirement benefits (a):
Amortization of net actuarial loss	$	688		$	(174	)	$	514		$	304		$	(77	)	$	227
Actuarial gains (losses)		4,128			(1,035	)		3,093			(3,609	)		905			(2,704	)
Foreign currency translation		(86	)		—			(86	)		351			—			351
Total	$	4,730		$	(1,209	)	$	3,521		$	(2,954	)	$	828		$	(2,126	)


	Six months ended June 30,
	2021									2020
	Gross Amount			Income Tax Provision			Net Amount			Gross Amount			Income Tax (Provision) Benefit			Net Amount
Pension and postretirement benefits (a):
Amortization of net actuarial loss	$	1,683		$	(424	)	$	1,259		$	414		$	(105	)	$	309
Actuarial gains (losses)		4,128			(1,035	)		3,093			(3,609	)		905			(2,704	)
Foreign currency translation		(583	)		—			(583	)		(923	)		—			(923	)
Total	$	5,228		$	(1,459	)	$	3,769		$	(4,118	)	$	800		$	(3,318	)

(a) Actuarial gains (losses) are amortized into other income (expense). (See Note 12, Retirement Plans)

Acquisition (Details)	6 Months Ended
Acquisition (Details)	Jun. 30, 2021 USD ($)
Inland Tank Barges [Member]
Restructuring Cost and Reserve [Line Items]
Cash paid for acquisition	$ 7,470,000

Revenues (Details) - USD ($)	3 Months Ended		6 Months Ended
Revenues (Details) - USD ($)	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Disaggregation of Revenue [Abstract]
Revenues by major source	$ 559,624,000	$ 541,159,000	$ 1,056,474,000	$ 1,185,085,000
Revenue recognized			39,181,000	33,693,000
Marine Transportation [Member]
Disaggregation of Revenue [Abstract]
Revenues by major source	332,887,000	380,987,000	633,838,000	784,244,000
Marine Transportation [Member] \| Inland Transportation [Member]
Disaggregation of Revenue [Abstract]
Revenues by major source	253,588,000	303,012,000	478,039,000	621,577,000
Marine Transportation [Member] \| Coastal Transportation [Member]
Disaggregation of Revenue [Abstract]
Revenues by major source	79,299,000	77,975,000	155,799,000	162,667,000
Distribution and Services [Member]
Disaggregation of Revenue [Abstract]
Revenues by major source	226,737,000	160,172,000	422,636,000	400,841,000
Distribution and Services [Member] \| Commercial and Industrial [Member]
Disaggregation of Revenue [Abstract]
Revenues by major source	140,966,000	129,548,000	273,874,000	291,539,000
Distribution and Services [Member] \| Oil and Gas [Member]
Disaggregation of Revenue [Abstract]
Revenues by major source	$ 85,771,000	$ 30,624,000	$ 148,762,000	$ 109,302,000

- Definition

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 30
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8906-108599

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 40
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e9031-108599

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 41
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e9038-108599

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 32
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8933-108599

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 32
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8933-108599

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130543-203045

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 22
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8736-108599

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 22
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8736-108599

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 42
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e9054-108599

Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130545-203045

Reference 11: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 924
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 11.L)
-URI http://asc.fasb.org/extlink&oid=6472922&loc=d3e499488-122856

+ Details

Segment Data (Details)	3 Months Ended		6 Months Ended
Segment Data (Details)	Jun. 30, 2021 USD ($)	Jun. 30, 2020 USD ($)	Jun. 30, 2021 USD ($) Segment	Jun. 30, 2020 USD ($)	Dec. 31, 2020 USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments \| Segment			2
Revenues [Abstract]
Revenues	$ 559,624,000	$ 541,159,000	$ 1,056,474,000	$ 1,185,085,000
Segment profit (loss)	15,845,000	23,834,000	11,834,000	(495,938,000)
Total assets	5,767,815,000		5,767,815,000		$ 5,924,174,000
Other segment disclosures [Abstract]
(Gain) loss on disposition of assets	2,119,000	(189,000)	4,252,000	303,000
Interest expense	(10,706,000)	(12,708,000)	(21,672,000)	(25,507,000)
Earnings (loss) before taxes on income	15,845,000	23,834,000	11,834,000	(495,938,000)
Marine Transportation [Member]
Revenues [Abstract]
Revenues	332,887,000	380,987,000	633,838,000	784,244,000
Distribution and Services [Member]
Revenues [Abstract]
Revenues	226,737,000	160,172,000	422,636,000	400,841,000
Other [Member]
Revenues [Abstract]
Segment profit (loss)	(8,789,000)	(13,394,000)	(17,651,000)	(587,600,000)
Total assets	211,532,000		211,532,000		357,894,000
Other segment disclosures [Abstract]
General corporate expenses	(2,725,000)	(2,787,000)	(6,545,000)	(6,135,000)
(Gain) loss on disposition of assets	2,119,000	(189,000)	4,252,000	303,000
Impairments and other charges	0	0	0	(561,274,000)
Interest expense	(10,706,000)	(12,708,000)	(21,672,000)	(25,507,000)
Other income	2,523,000	2,290,000	6,314,000	5,013,000
Earnings (loss) before taxes on income	(8,789,000)	(13,394,000)	(17,651,000)	(587,600,000)
Details of Other total assets [Abstract]
General corporate assets	209,670,000		209,670,000		355,205,000
Investment in affiliates	1,862,000		1,862,000		2,689,000
Total other assets	211,532,000		211,532,000		357,894,000
Reporting Segments [Member] \| Marine Transportation [Member]
Revenues [Abstract]
Revenues	332,887,000	380,987,000	633,838,000	784,244,000
Segment profit (loss)	18,478,000	51,375,000	20,418,000	102,091,000
Total assets	4,723,786,000		4,723,786,000		4,760,449,000
Other segment disclosures [Abstract]
Earnings (loss) before taxes on income	18,478,000	51,375,000	20,418,000	102,091,000
Reporting Segments [Member] \| Distribution and Services [Member]
Revenues [Abstract]
Revenues	226,737,000	160,172,000	422,636,000	400,841,000
Segment profit (loss)	6,156,000	(14,147,000)	9,067,000	(10,429,000)
Total assets	832,497,000		832,497,000		$ 805,831,000
Other segment disclosures [Abstract]
Earnings (loss) before taxes on income	6,156,000	(14,147,000)	9,067,000	(10,429,000)
Intersegment Eliminations [Member]
Revenues [Abstract]
Revenues	7,254,000	6,061,000	12,157,000	16,347,000
Segment profit (loss)	726,000	606,000	1,216,000	1,635,000
Other segment disclosures [Abstract]
Earnings (loss) before taxes on income	$ 726,000	$ 606,000	$ 1,216,000	$ 1,635,000

Long-Term Debt, Carrying Value and Fair Value of Debt Outstanding (Details) - USD ($)	6 Months Ended	12 Months Ended
	Jun. 30, 2021	Dec. 31, 2020
Carrying Value and Fair Value of Debt Outstanding [Abstract]
Carrying value	$ 1,281,417,000	$ 1,475,040,000
Fair value	1,351,768,000	1,570,693,000
Unamortized debt discounts and issuance costs	(5,738,000)	(6,454,000)
Long-term Debt	1,275,679,000	1,468,586,000
3.29% Senior Notes Due February, 27 2023 [Member]
Carrying Value and Fair Value of Debt Outstanding [Abstract]
Carrying value	350,000,000	350,000,000
Fair value	$ 361,800,000	364,538,000
Interest rate	3.29%
Maturity Date	Feb. 27, 2023
4.2% Senior Notes Due March 1, 2028 [Member]
Carrying Value and Fair Value of Debt Outstanding [Abstract]
Carrying value	$ 500,000,000	500,000,000
Fair value	$ 558,551,000	581,115,000
Interest rate	4.20%
Maturity Date	Mar. 01, 2028
Credit line due June 30, 2021 [Member]
Carrying Value and Fair Value of Debt Outstanding [Abstract]
Carrying value	$ 0	0
Fair value	0	0
Bank Note Payable [Member]
Carrying Value and Fair Value of Debt Outstanding [Abstract]
Carrying value	1,417,000	40,000
Fair value	1,417,000	40,000
Revolving Credit Facility [Member]
Carrying Value and Fair Value of Debt Outstanding [Abstract]
Carrying value	55,000,000	250,000,000
Fair value	$ 55,000,000	$ 250,000,000
Variable interest rates	1.50%	1.50%
Term Loan [Member]
Carrying Value and Fair Value of Debt Outstanding [Abstract]
Carrying value	$ 375,000,000	$ 375,000,000
Fair value	375,000,000	$ 375,000,000
Long-term Debt	$ 343,750,000

Long-Term Debt, Borrowings and Payments under Bank Credit Facilities (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Borrowings and Payments under the Revolving Credit Facility [Abstract]
Borrowings (Payments) on bank credit facilities	$ (193,623)	$ 424,991
Revolving Credit Facility [Member]
Borrowings and Payments under the Revolving Credit Facility [Abstract]
Borrowings on bank credit facilities	2,365	582,038
Payments on bank credit facilities	(195,988)	(157,047)
Borrowings (Payments) on bank credit facilities	$ (193,623)	$ 424,991

Long-Term Debt (Details) - USD ($)	6 Months Ended
Long-Term Debt (Details) - USD ($)	Jun. 30, 2021	Dec. 31, 2020
Long-term Debt [Abstract]
Term loan	$ 1,275,679,000	$ 1,468,586,000
Credit line due June 30, 2021 [Member]
Long-term Debt [Abstract]
Maximum borrowing capacity	8,701,000
Credit facility, amount outstanding	10,000,000
Credit facility and borrowings, amount available	1,299,000
Revolving Credit Facility [Member]
Long-term Debt [Abstract]
Maximum borrowing capacity	$ 850,000,000
Credit facility, expiration date	Mar. 27, 2024
Credit facility, amount outstanding	$ 5,063,000
Credit facility and borrowings, amount available	$ 789,937,000
Term Loan [Member]
Long-term Debt [Abstract]
Credit facility, expiration date	Mar. 27, 2024
Debt instrument, frequency of periodic payment	quarterly
Term loan	$ 343,750,000

Leases, Future Minimum Lease Payments Under Operating Leases (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2021	Dec. 31, 2020
Leases [Abstract]
Percentage of costs relate to service costs for leased towing vessels	70.00%
Future Minimum Lease Payments Under Operating Leases [Abstract]
2021	$ 20,296	$ 40,224
2022/2021	34,859	33,543
2022	29,675	28,012
2023	24,032	23,578
2024	21,606	21,261
Thereafter	97,885	96,491
Total lease payments	228,353	243,109
Less: imputed interest	(42,933)	(46,863)
Operating lease liabilities	$ 185,420	$ 196,246

Leases, Lease Cost (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
Leases, Lease Cost (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Lease Cost [Abstract]
Operating lease cost	$ 10,680	$ 11,873	$ 21,072	$ 20,914
Variable lease cost	206	444	915	596
Short-term lease cost	4,015	5,076	7,068	13,353
Sublease income	(306)	(130)	(580)	(374)
Total lease cost	$ 14,595	$ 17,263	$ 28,475	$ 34,489

Leases, Other Supplemental Information (Details)	Jun. 30, 2021	Dec. 31, 2020
Other Supplemental Information about Operating Leases [Abstract]
Weighted average discount rate	4.10%	4.10%
Weighted average remaining lease term	10 years	10 years

Impairments and Other Charges (Details)	3 Months Ended
Impairments and Other Charges (Details)	Mar. 31, 2020 USD ($)
Impairments and Other Charges [Abstract]
Impairment charge	$ 165,304,000
Impairment of intangible assets other than goodwill	148,909,000
Impairment of property and equipment	16,395,000
Goodwill impairment charge	387,970,000
Non-cash write-down	$ 8,000,000

Stock Award Plans, Compensation Cost (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Stock Award Plans [Abstract]
Compensation cost	$ 3,426	$ 3,321	$ 9,148	$ 8,652
Income tax benefit	$ 1,320	$ 889	$ 2,592	$ 2,151

Stock Award Plans (Details) - shares		6 Months Ended
Stock Award Plans (Details) - shares	Mar. 01, 2021	Jun. 30, 2021
2005 Stock and Incentive Plan [Member]
Stock Award Plan Information [Abstract]
Shares available for grant (in shares)	1,400,000
Shares available for future grants (in shares)		2,225,222
Employee Stock Award Plan [Member] \| RSUs [Member]
Stock Award Plan Information [Abstract]
Number of restricted stock and units granted (in shares)		311,016
Vesting period		5 years
Director Plan [Member] \| Restricted Stock [Member]
Stock Award Plan Information [Abstract]
Number of restricted stock and units granted (in shares)		27,120
Vesting period		6 months

Taxes on Income (Details) - USD ($)	3 Months Ended			6 Months Ended		12 Months Ended
Taxes on Income (Details) - USD ($)	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2017	Dec. 31, 2020
Income Taxes [Abstract]
Effective income tax rate				21.00%		35.00%
Income tax receivable	$ 70,528,000			$ 70,528,000			$ 188,177,000
Tax refund amount		$ 119,493,000
Loss before taxes on income [Abstract]
Earnings (loss) before taxes on income	15,845,000		$ 23,834,000	11,834,000	$ (495,938,000)
U.S. Federal [Abstract]
Current	0		(18,608,000)	0	(156,304,000)
Deferred	3,407,000		16,149,000	2,804,000	(7,294,000)
U.S. State and local [Abstract]
Current	573,000		536,000	215,000	618,000
Deferred	1,506,000		505,000	1,576,000	(11,294,000)
Foreign - current	7,000		(11,000)	7,000	36,000
Total provision (benefit) for taxes on income	5,493,000		(1,429,000)	$ 4,602,000	(174,238,000)
COVID-19 [Member]
Income Taxes [Abstract]
Operating losses tax year				2013 2014 2015 2016 2017
Tax benefit related to CARES Act					50,824,000
COVID-19 [Member] \| Maximum [Member]
Income Taxes [Abstract]
Number of years net operating losses carried				5 years
United States [Member]
Loss before taxes on income [Abstract]
Earnings (loss) before taxes on income	15,811,000		23,861,000	$ 12,192,000	(495,628,000)
Foreign [Member]
Loss before taxes on income [Abstract]
Earnings (loss) before taxes on income	$ 34,000		$ (27,000)	$ (358,000)	$ (310,000)

Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Net Income (Loss) Attributable to Parent [Abstract]
Net earnings (loss) attributable to Kirby	$ 10,190	$ 25,002	$ 6,815	$ (322,239)
Undistributed earnings allocated to restricted shares	(8)	(46)	(6)	0
Earnings (loss) available to common stockholders, basic, total	10,182	24,956	6,809	(322,239)
Undistributed earnings allocated to restricted shares	8	46	6	0
Undistributed earnings reallocated to restricted shares	(8)	(46)	(6)	0
Earnings (loss) available to Kirby common stockholders - diluted	$ 10,182	$ 24,956	$ 6,809	$ (322,239)
Shares outstanding [Abstract]
Weighted average common stock issued and outstanding (in shares)	60,101	60,023	60,088	60,003
Weighted average unvested restricted stock (in shares)	(48)	(111)	(53)	(105)
Weighted average common stock outstanding - basic (in shares)	60,053	59,912	60,035	59,898
Dilutive effect of stock options and restricted stock units (in shares)	221	25	185	0
Weighted average common stock outstanding - diluted (in shares)	60,274	59,937	60,220	59,898
Net earnings (loss) per share attributable to Kirby common stockholders
Basic (in dollars per share)	$ 0.17	$ 0.42	$ 0.11	$ (5.38)
Diluted (in dollars per share)	$ 0.17	$ 0.42	$ 0.11	$ (5.38)
Antidilutive securities excluded from computation of earnings per share (in shares)			550,000	681,000
RSUs [Member]
Net earnings (loss) per share attributable to Kirby common stockholders
Antidilutive securities excluded from computation of earnings per share (in shares)			5,000,000	162,000,000

Inventories (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Details of inventories [Abstract]
Finished goods	$ 257,426	$ 255,491
Work in process	68,119	54,184
Inventories - net	$ 325,545	$ 309,675

Retirement Plans (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
Retirement Plans (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Retirement Plans [Abstract]
Service period of participants not impacted by pension plan amendment			15 years
Age of plan participants not impacted by pension plan amendment			50 years
Service period of participants who are age fifty not impacted by pension plan amendment			10 years
Pension plan defined benefit plan cost increase limit percentage			4.00%
Higman [Member]
Retirement Plans [Abstract]
Pension contributions			$ 479,000
Pension Plans [Member]
Components of net periodic benefit cost [Abstract]
Service cost	$ 2,053	$ 1,919	3,980	$ 3,836
Interest cost	3,535	3,949	7,119	7,839
Expected return on plan assets	(6,559)	(5,735)	(13,133)	(11,923)
Amortization of actuarial loss (gain)	790	425	1,888	657
Net periodic benefit cost	(181)	558	(146)	409
SERP [Member]
Components of net periodic benefit cost [Abstract]
Service cost	0	0	0	0
Interest cost	7	10	15	20
Expected return on plan assets	0	0	0	0
Amortization of actuarial loss (gain)	10	9	20	18
Net periodic benefit cost	17	19	35	38
Other Postretirement Benefits [Member]
Components of net periodic benefit cost [Abstract]
Service cost	0	0	0	0
Interest cost	4	5	8	11
Amortization of actuarial loss (gain)	(112)	(130)	(225)	(261)
Net periodic benefit cost	$ (108)	$ (125)	$ (217)	$ (250)

Other Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Pension and postretirement benefits [Abstract]
Amortization of net actuarial loss, gross amount	$ 688	$ 304	$ 1,683	$ 414
Amortization of net actuarial loss, income tax provision	(174)	(77)	(424)	(105)
Amortization of net actuarial loss, net amount	514	227	1,259	309
Actuarial gains (losses), gross amount	4,128	(3,609)	4,128	(3,609)
Actuarial gains (losses), income tax provision	(1,035)	905	(1,035)	905
Actuarial gains (losses), net amount	3,093	(2,704)	3,093	(2,704)
Foreign currency translation, gross amount	(86)	351	(583)	(923)
Foreign currency translation, income tax provision			0	0
Foreign currency translation, net amount	(86)	351	(583)	(923)
Total other comprehensive income, gross amount	4,730	(2,954)	5,228	(4,118)
Total other comprehensive income, income tax provision	(1,209)	828	(1,459)	800
Total other comprehensive income (loss), net of taxes	$ 3,521	$ (2,126)	$ 3,769	$ (3,318)

Contingencies and Commitments (Details)	6 Months Ended
Contingencies and Commitments (Details)	Jun. 30, 2021 USD ($)
Guaranties [Abstract]
Issued guaranties	$ 23,396,000
Settlement Agreement [Member]
Guaranties [Abstract]
Payments for legal settlements	$ 2,102,000
Maximum [Member]
Guaranties [Abstract]
Guarantor obligations, expiration period	3 years
Performance Bonds [Member]
Guaranties [Abstract]
Issued guaranties	$ 9,518,000
Letters of Credit [Member]
Guaranties [Abstract]
Issued guaranties	$ 13,878,000