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SEGMENT INFORMATION - Reconciliation of Net Income to Gross Margin (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Reconciliation Net Income (Loss) to Gross Margin
Total gross margin	$ 106,141	$ 103,234	$ 315,966	$ 318,255
Less:
Selling, general and administrative	30,500	28,839	85,964	80,000
Depreciation and amortization	39,953	45,280	124,348	135,185
Long-lived and other asset impairment	4,154	5,121	16,217	15,154
Restructuring charges		313		1,953
Interest expense	25,177	25,508	74,879	82,711
Gain on sale of assets, net	(12,695)	(15,393)	(33,755)	(29,549)
Other (income) expense, net	(585)	337	(52)	(1,634)
Income before income taxes	$ 19,637	$ 13,229	$ 48,365	$ 34,435

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