Condensed Consolidated Statements of Changes in Stockholders' Equity - USD ($) shares in Thousands, $ in Thousands	Total	Cumulative Effect, Period of Adoption, Adjustment	Class A Common Stock	Class B Common Stock	Common Stock Class A Common Stock	Common Stock Class B Common Stock	Treasury Stock Class A Common Stock	Additional Paid-In Capital	Accumulated Deficit	Accumulated Deficit Cumulative Effect, Period of Adoption, Adjustment	Accumulated Other Comprehensive Income (Loss)	Non-Controlling Interest	Non-Controlling Interest Cumulative Effect, Period of Adoption, Adjustment
Beginning balance (in shares) at Dec. 31, 2020					84,196	236,997
Beginning balance at Dec. 31, 2020	$ 1,399,155				$ 8	$ 24		$ 399,169	$ (18,802)		$ 17	$ 1,018,739
Beginning balance (Cumulative impact of Topic 842) at Dec. 31, 2020		$ (63)								$ (17)			$ (46)
Beginning balance (Cumulative impact of Topic 326) at Dec. 31, 2020		$ (539)								$ (141)			$ (398)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(46,481)								(14,091)			(32,390)
Issuance of Class A common shares related to share-based compensation plans (in shares)					74
Issuance of Class A common shares related to share-based compensation plans	476							476
Share-based compensation expense	12,711							12,711
Foreign currency translation adjustment	(99)										(30)	(69)
Forfeitures of Time-Vesting Units (in shares)						(454)
Forfeitures of Time-Vesting Units	0
Redemption of LLC Interests (in shares)					21,048	(21,048)
Redemption of LLC Interests	0				$ 2	$ (2)		91,333				(91,333)
Ending balance (in shares) at Jun. 30, 2021					105,318	215,495
Ending balance at Jun. 30, 2021	1,365,160				$ 10	$ 22		503,689	(33,051)		(13)	894,503
Beginning balance (in shares) at Mar. 31, 2021					98,518	222,606
Beginning balance at Mar. 31, 2021	1,396,412				$ 10	$ 22		465,936	(21,047)		19	951,472
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(39,221)								(12,004)			(27,217)
Issuance of Class A common shares related to share-based compensation plans (in shares)					62
Issuance of Class A common shares related to share-based compensation plans	476							476
Share-based compensation expense	7,599							7,599
Foreign currency translation adjustment	(106)										(32)	(74)
Forfeitures of Time-Vesting Units (in shares)						(373)
Forfeitures of Time-Vesting Units	0
Redemption of LLC Interests (in shares)					6,738	(6,738)
Redemption of LLC Interests	0				$ 0	$ 0		29,678				(29,678)
Ending balance (in shares) at Jun. 30, 2021					105,318	215,495
Ending balance at Jun. 30, 2021	1,365,160				$ 10	$ 22		503,689	(33,051)		(13)	894,503
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance (in shares)							0
Beginning balance (in shares) at Dec. 31, 2021			115,487	205,352	115,487	205,352
Beginning balance at Dec. 31, 2021	892,490				$ 11	$ 21	$ 0	561,447	(208,317)		(59)	539,387
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(150,993)								(57,302)			(93,691)
Issuance of Class A common shares related to share-based compensation plans (in shares)					8,940
Issuance of Class A common shares related to share-based compensation plans	337				$ 1			336
Share-based compensation expense	17,293							17,293
Foreign currency translation adjustment	(462)										(175)	(287)
Class A common shares repurchased for employee tax withholdings (in shares)							(189)
Class A common shares repurchased for employee tax withholdings	(344)						$ (344)
Forfeitures of Time-Vesting Units (in shares)						(267)
Forfeitures of Time-Vesting Units	0
Redemption of LLC Interests (in shares)					7,538	(7,538)
Redemption of LLC Interests	0				$ 1	$ (1)		33,551				(33,551)
Ending balance (in shares) at Jun. 30, 2022			131,776	197,547	131,965	197,547
Ending balance at Jun. 30, 2022	758,321				$ 13	$ 20	$ (344)	612,627	(265,619)		(234)	411,858
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance (in shares)							(169)
Beginning balance (in shares) at Mar. 31, 2022					121,944	199,338
Beginning balance at Mar. 31, 2022	859,958				$ 12	$ 20	$ (329)	583,323	(221,800)		(101)	498,833
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(113,752)								(43,819)			(69,933)
Issuance of Class A common shares related to share-based compensation plans (in shares)					8,427
Issuance of Class A common shares related to share-based compensation plans	337				$ 1			336
Share-based compensation expense	12,138							12,138
Foreign currency translation adjustment	(345)										(133)	(212)
Class A common shares repurchased for employee tax withholdings (in shares)							(20)
Class A common shares repurchased for employee tax withholdings	(15)						$ (15)
Forfeitures of Time-Vesting Units (in shares)						(197)
Forfeitures of Time-Vesting Units	0
Redemption of LLC Interests (in shares)					1,594	(1,594)
Redemption of LLC Interests	0				$ 0	$ 0		16,830				(16,830)
Ending balance (in shares) at Jun. 30, 2022			131,776	197,547	131,965	197,547
Ending balance at Jun. 30, 2022	$ 758,321				$ 13	$ 20	$ (344)	$ 612,627	$ (265,619)		$ (234)	$ 411,858
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance (in shares)			(189)				(189)