CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 80,577	$ 34,813
Accounts receivable:
Trade - less allowance for doubtful accounts of $7,684 ($8,177 in 2021)	483,406	417,958
Other	114,556	149,964
Inventories - net	461,848	331,350
Prepaid expenses and other current assets	71,372	69,780
Total current assets	1,211,759	1,003,865
Property and equipment:
Marine transportation equipment	4,837,379	4,789,994
Land, buildings and equipment	614,764	602,857
Property and equipment	5,452,143	5,392,851
Accumulated depreciation	(1,818,681)	(1,714,336)
Property and equipment - net	3,633,462	3,678,515
Operating lease right-of-use assets	154,507	167,730
Investment in affiliates	2,171	2,134
Goodwill	438,748	438,748
Other intangibles, net	51,463	60,070
Other assets	62,814	48,001
Total assets	5,554,924	5,399,063
Current liabilities:
Bank notes payable	3,292	1,934
Income taxes payable	323	0
Accounts payable	278,081	199,088
Accrued liabilities:
Interest	11,630	11,379
Insurance premiums and claims	65,088	111,117
Employee compensation	55,851	39,331
Taxes - other than on income	30,169	44,740
Other	42,014	29,511
Current portion of operating lease liabilities	36,444	33,902
Deferred revenues	119,305	72,770
Total current liabilities	642,197	543,772
Long-term debt, net - less current portion	1,076,326	1,161,433
Deferred income taxes	625,884	574,152
Operating lease liabilities - less current portion	142,140	159,672
Other long-term liabilities	23,209	71,252
Total long-term liabilities	1,867,559	1,966,509
Contingencies and commitments	0	0
Kirby stockholders' equity:
Common stock, $0.10 par value per share. Authorized 120,000,000 shares, issued 65,472,000	6,547	6,547
Additional paid-in capital	859,345	854,512
Accumulated other comprehensive income - net	16,853	(25,966)
Retained earnings	2,468,730	2,346,439
Treasury stock - at cost, 5,565,000 shares in 2022 and 5,361,000 shares in 2021	(308,598)	(295,208)
Total Kirby stockholders' equity	3,042,877	2,886,324
Noncontrolling interests	2,291	2,458
Total equity	3,045,168	2,888,782
Total liabilities and equity	$ 5,554,924	$ 5,399,063