CONDENSED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Current assets:
Cash and cash equivalents	$ 53,540	$ 32,577
Accounts receivable:
Trade - less allowance for doubtful accounts	550,159	526,691
Other	47,666	52,025
Inventories - net	445,304	454,389
Prepaid expense and other current assets	69,946	69,479
Total current assets	1,166,615	1,135,161
Property and equipment	5,990,523	5,824,038
Accumulated depreciation	(2,015,776)	(1,962,933)
Property and equipment - net	3,974,747	3,861,105
Operating lease right-of-use assets	157,950	152,216
Goodwill	438,748	438,748
Other intangibles, net	38,667	42,927
Other assets	89,171	92,040
Total assets	5,865,898	5,722,197
Current liabilities:
Bank notes payable	8,970	8,068
Income taxes payable	10,194	1,486
Accounts payable	266,820	269,378
Accrued liabilities	211,276	228,946
Current portion of operating lease liabilities	33,399	33,340
Deferred revenues	153,964	134,577
Total current liabilities	684,623	675,795
Long-term debt, net - less current portion	1,039,120	1,008,527
Deferred income taxes	720,679	696,557
Operating lease liabilities - less current portion	144,250	138,811
Other long-term liabilities	14,548	15,830
Total long-term liabilities	1,918,597	1,859,725
Contingencies and commitments	0	0
Kirby stockholders' equity:
Common stock, $0.10 par value per share. Authorized 120 million shares, issued 65.5 million shares	6,547	6,547
Additional paid-in capital	862,258	863,963
Accumulated other comprehensive income - net	35,124	35,006
Retained earnings	2,845,587	2,691,665
Treasury stock - at cost, 7.5 million shares at June 30, 2024 and 6.8 million at December 31, 2023	(488,059)	(411,750)
Total Kirby stockholders' equity	3,261,457	3,185,431
Noncontrolling interests	1,221	1,246
Total equity	3,262,678	3,186,677
Total liabilities and equity	$ 5,865,898	$ 5,722,197