Condensed Financial Information of Registrant Statements of Operations (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Operating expenses
Depreciation and amortization									$ 86,121	$ 52,642	$ 45,989
General and administrative expense (excluding depreciation)									46,223	47,426	46,078
Acquisition and integration costs									4,704	10,319	395
Total operating expenses									5,253,536	3,328,787	2,349,105
Operating loss	$ 59,531	$ 18,405	$ 48,621	$ 21,423	$ 20,408	$ 4,894	$ 28,983	$ 27,656	147,980	81,941	93,961
Other income (expense)
Interest expense and financing costs, net									(74,839)	(39,768)	(31,632)
Other income (expense), net									2,516	1,046	911
Change in value of common stock warrants									(3,199)	1,801	(1,674)
Equity in earnings (losses) from subsidiaries									(89,751)	9,464	18,369
Total other expense, net									(176,860)	(42,181)	(22,659)
Income (loss) before income taxes									(28,880)	39,760	71,302
Income tax benefit (expense)									69,689	(333)	1,319
Net Income	$ 35,439	$ (83,891)	$ 28,169	$ 61,092	$ 13,886	$ (5,822)	$ 16,178	$ 15,185	40,809	39,427	72,621
Parent Company
Operating expenses
Depreciation and amortization									2,969	4,092	2,871
General and administrative expense (excluding depreciation)									20,017	20,721	18,922
Acquisition and integration costs									28	10,118	192
Total operating expenses									23,014	34,931	21,985
Operating loss									(23,014)	(34,931)	(21,985)
Other income (expense)
Interest expense and financing costs, net									(9,952)	(10,867)	(13,709)
Debt extinguishment and commitment costs									(6,091)	0	(1,804)
Other income (expense), net									2,303	1,155	631
Change in value of common stock warrants									(3,199)	1,801	(1,674)
Equity in earnings (losses) from subsidiaries									81,097	81,942	111,162
Total other expense, net									64,158	74,031	94,606
Income (loss) before income taxes									41,144	39,100	72,621
Income tax benefit (expense)									(335)	327	0
Net Income									$ 40,809	$ 39,427	$ 72,621