CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Income Statement [Abstract]
Revenues	$ 393,555	$ 420,348	$ 1,192,329	$ 1,266,266
Costs and Expenses:
Operating (excluding depreciation and amortization)	104,603	109,682	316,961	334,651
Selling, general and administrative	88,443	92,726	269,603	265,641
Depreciation and amortization	85,165	82,918	256,119	255,586
(Gain) loss on asset sales and disposals, net	5,045	2,492	9,348	10,714
Total Costs and Expenses	283,256	287,818	852,031	866,592
Income from operations	110,299	132,530	340,298	399,674
Interest expense, net	(34,210)	(38,548)	(104,957)	(114,508)
Other income (expense), net	5,252	(25,372)	(2,504)	(30,612)
Income before income taxes and equity method investment income (loss), net	81,341	68,610	232,837	254,554
Income tax provision	15,870	17,258	47,516	52,571
Income before equity method investment income (loss), net	65,471	51,352	185,321	201,983
Equity method investment income (loss), net	(21,256)	(21,055)	(65,603)	(80,857)
Net income	$ 44,215	$ 30,297	$ 119,718	$ 121,126
Net Income per Common Share:
Basic (in dollars per share)	$ 7.86	$ 5.40	$ 21.30	$ 21.39
Diluted (in dollars per share)	$ 7.58	$ 5.29	$ 20.62	$ 20.71
Weighted Average Common Shares Outstanding:
Basic (in shares)	5,622,512	5,611,278	5,620,623	5,663,198
Diluted (in shares)	6,037,624	6,026,285	6,031,163	6,074,898
Unrealized gain (loss) on cash flow hedges and other, net of tax	$ (31,159)	$ 18,569	$ (13,578)	$ 22,338
Comprehensive income	$ 13,056	$ 48,866	$ 106,140	$ 143,464