CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($)	Total	Common Class A	Common Class B	Common Stock Common Class A	Common Stock Common Class B	Additional Paid-in Capital	Retained Earnings (Accumulated Deficit)	Accumulated Other Comprehensive Income (Loss)	Parent
Opening Balance (in shares) at Dec. 31, 2016				33,510,184	7,197,532
Opening Balance at Dec. 31, 2016	$ 393,374,000			$ 335,000	$ 72,000	$ 605,603,000	$ (212,636,000)
NET INCOME (LOSS)	231,834,000						233,849,000		$ 233,849,000
Conversion of Class B common stock to Class A common stock in the Merger (in shares)				3,152,333	(3,152,333)
Conversion of Class B common stock to Class A common stock in the Merger				$ 32,000	$ (32,000)
Issuance of Class A common stock in the Merge (in shares)				101,407,494
Issuance of Class A common stock in the Merger	1,161,116,000			$ 1,014,000		1,160,102,000
Equity awards assumed in the Merger (in shares)				618,325
Equity awards assumed in the Merger	6,777,000			$ 6,000		6,771,000
Stock options assumed in the Merger	1,007,000					1,007,000
Compensation expense related to granting of stock awards (in shares)				2,066,241
Compensation expense related to granting of stock awards	9,567,000			$ 21,000		9,546,000
Issuance of common stock related to the Employee Stock Purchase Plan (“ESPP”) (in shares)				14,833
Issuance of common stock related to the Employee Stock Purchase Plan (“ESPP”)	182,000					182,000
Exercise of stock options (in shares)				8,250
Exercise of stock options	42,000					42,000
Common stock repurchase (in shares)				(932,600)
Common stock repurchase	$ (10,675,000)			$ (9,000)		(10,666,000)
Purchase of vested employee restricted stock units (in shares)	(169,000)			(169,279)
Purchase of vested employee restricted stock units	$ (2,565,000)			$ (2,000)		(2,563,000)
Payment of dividends on common stock	(29,296,000)					(29,296,000)
Dividend equivalents, net of forfeitures	(1,556,000)					(1,556,000)
Payment of dividends on preferred stock	(2,574,000)					(2,574,000)
Net unrealized gain (loss) on derivatives	0
Ending Balance (in shares) at Dec. 31, 2017				139,675,781	4,045,199
Ending Balance at Dec. 31, 2017	1,764,360,000			$ 1,397,000	$ 40,000	1,737,132,000	25,791,000
NET INCOME (LOSS)	(361,435,000)						(361,435,000)
Compensation expense related to granting of stock awards (in shares)				895,834
Compensation expense related to granting of stock awards	15,149,000			$ 9,000		15,140,000
Issuance of common stock related to the Employee Stock Purchase Plan (“ESPP”) (in shares)				228,227
Issuance of common stock related to the Employee Stock Purchase Plan (“ESPP”)	1,428,000			$ 2,000		1,426,000
Exercise of stock options (in shares)				113,137
Exercise of stock options	153,000			$ 1,000		152,000
Common stock repurchase (in shares)				(3,226,300)
Common stock repurchase	$ (29,407,000)			$ (32,000)		(29,375,000)
Purchase of vested employee restricted stock units (in shares)	(506,000)			(506,466)
Purchase of vested employee restricted stock units	$ (5,186,000)			$ (5,000)		(5,181,000)
Payment of dividends on common stock	(50,643,000)					(25,782,000)	(24,861,000)
Dividend equivalents, net of forfeitures	(159,000)						(159,000)
Net unrealized gain (loss) on derivatives	0
Ending Balance (in shares) at Dec. 31, 2018		137,180,213	4,045,199	137,180,213	4,045,199
Ending Balance at Dec. 31, 2018	1,334,260,000			$ 1,372,000	$ 40,000	1,693,512,000	(360,664,000)	$ 0
NET INCOME (LOSS)	(420,212,000)						(420,212,000)
Compensation expense related to granting of stock awards (in shares)				1,631,529
Compensation expense related to granting of stock awards	13,382,000			$ 16,000		13,366,000
Issuance of common stock related to the Employee Stock Purchase Plan (“ESPP”) (in shares)				334,782
Issuance of common stock related to the Employee Stock Purchase Plan (“ESPP”)	$ 1,329,000			$ 4,000		1,325,000
Exercise of stock options (in shares)	180,300			180,300
Exercise of stock options	$ 244,000			$ 2,000		242,000
Common stock repurchase (in shares)	(5,000,000.0)			(5,000,000)
Common stock repurchase	$ (18,340,000)			$ (50,000)		(18,290,000)
Purchase of vested employee restricted stock units (in shares)	(459,000)			(459,203)
Purchase of vested employee restricted stock units	$ (2,905,000)			$ (5,000)		(2,900,000)
Payment of dividends on common stock	(31,474,000)					(31,474,000)
Dividend equivalents, net of forfeitures	(579,000)						(579,000)
Net unrealized gain (loss) on derivatives	(139,000)							(139,000)
Ending Balance (in shares) at Dec. 31, 2019		133,867,621	4,045,199	133,867,621	4,045,199
Ending Balance at Dec. 31, 2019	$ 881,443,000			$ 1,339,000	$ 40,000	$ 1,655,781,000	$ (775,578,000)	$ (139,000)