Supplemental Guarantor Financial Information - Prior Year Information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
Condensed Consolidated Statements of Comprehensive (Loss) Income
Revenues	$ 279,398	$ 351,507	$ 819,192	$ 1,010,598	$ 1,349,405
(Loss) income from operations	22,133	31,378	35,135	67,241	86,434
Net income	5,727	20,867	9,555	35,651	48,265
Net income (loss) attributable to controlling interests and available to common shareholders	5,732	$ 20,864	9,565	$ 35,654	48,274
Total current assets	515,836		515,836		308,521
Total noncurrent assets					1,455,437
Total current liabilities	550,397		550,397		434,384
Total noncurrent liabilities					949,247
Eliminations
Condensed Consolidated Statements of Comprehensive (Loss) Income
Revenues			(52,832)		(72,531)
(Loss) income from operations			806		300
Net income			(22,981)		(111,534)
Net income (loss) attributable to controlling interests and available to common shareholders			(22,971)		(111,525)
Total current assets	0		0		0
Total noncurrent assets					(1,907,847)
Total current liabilities	(20,909)		(20,909)		0
Total noncurrent liabilities					(888,125)
Parent | Reportable Legal Entities
Condensed Consolidated Statements of Comprehensive (Loss) Income
Revenues			0		0
(Loss) income from operations			(17,883)		(35,637)
Net income			9,555		48,265
Net income (loss) attributable to controlling interests and available to common shareholders			9,555		48,265
Total current assets	98		98		46
Total noncurrent assets					452,342
Total current liabilities	390		390		814
Total noncurrent liabilities					71,248
Issuer | Reportable Legal Entities
Condensed Consolidated Statements of Comprehensive (Loss) Income
Revenues			460,657		668,527
(Loss) income from operations			9,936		40,733
Net income			16,275		20,546
Net income (loss) attributable to controlling interests and available to common shareholders			16,275		20,546
Total current assets	336,578		336,578		146,768
Total noncurrent assets					1,225,786
Total current liabilities	388,848		388,848		242,735
Total noncurrent liabilities					805,812
Guarantors | Reportable Legal Entities
Condensed Consolidated Statements of Comprehensive (Loss) Income
Revenues			207,657		351,330
(Loss) income from operations			46,199		70,835
Net income			(1,661)		63,952
Net income (loss) attributable to controlling interests and available to common shareholders			(1,661)		63,952
Total current assets	84,426		84,426		41,788
Total noncurrent assets					1,488,531
Total current liabilities	68,136		68,136		66,766
Total noncurrent liabilities					984,556
Non-Guarantors | Reportable Legal Entities
Condensed Consolidated Statements of Comprehensive (Loss) Income
Revenues			203,710		402,079
(Loss) income from operations			(3,923)		10,203
Net income			8,367		27,036
Net income (loss) attributable to controlling interests and available to common shareholders			8,367		27,036
Total current assets	94,734		94,734		119,919
Total noncurrent assets					196,625
Total current liabilities	$ 113,932		$ 113,932		124,069
Total noncurrent liabilities					$ (24,244)