Condensed Consolidated Statements of Changes in Equity - USD ($) $ in Thousands	Total	Common Stock Class A Common Stock	Common Stock Class B Common Stock	Treasury Stock	Additional Paid-In Capital	Retained Earnings (Accumulated Deficit)	Accumulated Other Comprehensive Income (Loss)	Noncontrolling Interests
Balance at beginning of the period at Dec. 31, 2020	$ 444,473	$ 620	$ 59	$ (152,170)	$ 1,052,322	$ (420,682)	$ (201)	$ (35,475)
Balance at beginning of the period (in shares) at Dec. 31, 2020		61,986,927	5,948,750	(3,959,083)
Changes in Equity
Net income (loss)	75,798					66,529		9,269
Equity-based compensation	50,963	$ 36			41,508			9,419
Equity-based compensation (in shares)		3,612,341
Other comprehensive income (loss)	(744)						(655)	(89)
Dividends declared and tax distributions	(39,685)				5,131	(39,013)		(5,803)
Treasury Stock Purchases	$ (74,211)			$ (74,211)
Treasury Stock Purchases (in shares)	(1,363,934)			(1,363,934)
Issuance of Class A common stock and cancellation of Class B common stock in connection with offerings and other exchanges	$ 3,903	$ 10	$ (10)		2,161			1,742
Issuance of Class A common stock and cancellation of Class B common stock in connection with offerings and other exchanges (in shares)		1,049,293	(1,049,293)
Equity-based payments to non-employees	108				108
Other	(25)				(25)
Balance at end of the period at Mar. 31, 2021	460,580	$ 666	$ 49	$ (226,381)	1,101,205	(393,166)	(856)	(20,937)
Balance at end of the period (in shares) at Mar. 31, 2021		66,648,561	4,899,457	(5,323,017)
Balance at beginning of the period at Dec. 31, 2021	478,299	$ 685	$ 47	$ (256,320)	1,280,498	(535,282)	(560)	(10,769)
Balance at beginning of the period (in shares) at Dec. 31, 2021		68,518,779	4,686,344	(5,873,180)
Changes in Equity
Net income (loss)	73,594					65,715		7,879
Equity-based compensation	37,067	$ 33			20,949			16,085
Equity-based compensation (in shares)		3,305,692
Other comprehensive income (loss)	(764)						(687)	(77)
Dividends declared and tax distributions	(45,647)				5,572	(44,935)		(6,284)
Treasury Stock Purchases	$ (97,929)			$ (97,929)
Treasury Stock Purchases (in shares)	(2,021,455)			(2,021,455)
Issuance of Class A common stock and cancellation of Class B common stock in connection with offerings and other exchanges	$ 150				(774)			924
Issuance of Class A common stock and cancellation of Class B common stock in connection with offerings and other exchanges (in shares)		446	(446)
Equity-based payments to non-employees	45				45
Other	100							100
Balance at end of the period at Mar. 31, 2022	$ 444,915	$ 718	$ 47	$ (354,249)	$ 1,306,290	$ (514,502)	$ (1,247)	$ 7,858
Balance at end of the period (in shares) at Mar. 31, 2022		71,824,917	4,685,898	(7,894,635)