Segments - Reconciliation of Net Income to Gross Margin (Details) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Reconciliation Net Income (Loss) to Gross Margin
Total gross margin	$ 128,240		$ 125,654	$ 264,295	$ 243,176
Less:
Selling, general and administrative	28,745		28,618	59,371	57,607
Depreciation and amortization	48,849		45,482	98,671	89,588
Long-lived asset impairment	55,210		8,632	61,405	11,724
Goodwill impairment		$ 99,800		99,830
Restatement and other charges			24		445
Restructuring costs	2,408			4,136
Interest expense	25,778		25,954	55,443	49,571
Debt extinguishment loss	3,971		3,653	3,971	3,653
Transaction-related costs			2,687		2,867
(Gain) loss on sale of assets, net	2,189		(1,801)	(1,927)	(1,785)
Other income, net	(438)		(209)	(993)	(430)
Income (loss) before income taxes	$ (38,472)		$ 12,614	$ (115,612)	$ 29,936