Unaudited Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
CURRENT ASSETS:
Cash, cash equivalents and restricted cash	$ 23,181	$ 53,555
Accounts receivable, net of allowance of $1,193 in 2024 and $1,065 in 2023	219,946	215,581
Inventory	49,847	49,939
Prepaid supplies and other	22,386	26,626
TOTAL CURRENT ASSETS	315,360	345,701
Property and equipment, net	2,866,335	2,820,769
Customer incentive	57,049	60,961
Goodwill and acquired intangibles	479,874	482,427
Operating lease assets	49,140	54,060
Other assets	123,979	118,172
TOTAL ASSETS	3,891,737	3,882,090
CURRENT LIABILITIES:
Accounts payable	249,828	227,652
Accrued salaries, wages and benefits	55,271	56,650
Accrued expenses	9,786	10,784
Current portion of debt obligations	54,768	54,710
Current portion of lease obligations	18,947	20,167
Unearned revenue	31,075	30,226
TOTAL CURRENT LIABILITIES	419,675	400,189
Long term debt	1,663,006	1,707,572
Stock obligations	1,626	1,729
Post-retirement obligations	17,504	19,368
Long-term lease obligation	31,250	34,990
Other liabilities	89,235	64,292
Deferred income taxes	288,016	285,248
TOTAL LIABILITIES	2,510,312	2,513,388
Commitments and contingencies (Note H)
STOCKHOLDERS’ EQUITY:
Preferred stock, 20,000,000 shares authorized, including 75,000 Series A Junior Participating Preferred Stock	0	0
Common stock, par value $0.01 per share; 150,000,000 shares authorized; 65,702,385 and 65,240,961 shares issued and outstanding in 2024 and 2023, respectively	657	652
Additional paid-in capital	838,402	836,270
Retained earnings	597,828	589,209
Accumulated other comprehensive loss	(55,462)	(57,429)
TOTAL STOCKHOLDERS’ EQUITY	1,381,425	1,368,702
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY	$ 3,891,737	$ 3,882,090