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Segment Information - Reconciliation of gross margin to income (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Jun. 30, 2023
Jun. 30, 2022
Reconciliation of total gross margin to income        
Total gross margin $ 136,167 $ 105,763 $ 252,611 $ 209,825
Less:        
Selling, general and administrative 28,649 27,691 55,074 55,464
Depreciation and amortization 41,210 41,356 81,391 84,395
Long-lived and other asset impairment 2,892 4,647 5,461 12,063
Restructuring charges (85)   962  
Interest expense 28,630 24,456 55,211 49,702
Gain on sale of assets, net (1,176) (18,948) (4,781) (21,060)
Other expense (income), net 1,463 497 2,066 533
Income before income taxes $ 34,584 $ 26,064 $ 57,227 $ 28,728