CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY - USD ($) shares in Thousands, $ in Thousands	Total	Additional Paid-In Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Non-controlling Interest	Class A Common Stock Common Stock	Class B Common Stock Common Stock
Balance at the beginning of the period (in shares) at Dec. 31, 2018						37,654	37,236
Balance at the beginning of the period at Dec. 31, 2018	$ 362,328	$ 126,418	$ 51,683	$ (820)	$ 184,670	$ 377	$ 0
Statement of Stockholders'/Members' Equity
Adjustment to prior periods	(506)	10,424		409	(11,339)
Member distributions	(8,392)				(8,392)
Effect of CW Unit redemptions (in shares)						9,278	(9,278)
Effect of CW Unit redemptions	0	48,635		(59)	(48,669)	$ 93
Tax impact of equity transactions	5,499	5,499
Equity award vestings (in shares)						227
Equity award vestings	(1,549)	(791)			(760)	$ 2
Other comprehensive income (loss)	22			18	4
Stock-based compensation	6,995	4,271			2,724
Cash dividends declared	(4,305)		(4,305)
Net income	156,303		85,612		70,691
Balance at the end of the period (shares) at Dec. 31, 2019						47,159	27,958
Balance at the end of the period at Dec. 31, 2019	516,395	194,456	132,990	(452)	188,929	$ 472	$ 0
Statement of Stockholders'/Members' Equity
Member distributions	(16,304)				(16,304)
Effect of CW Unit redemptions (in shares)						303	(303)
Effect of CW Unit redemptions	0	2,155			(2,158)	$ 3
Tax impact of equity transactions	284	284
Equity award vestings (in shares)						251
Equity award vestings	(1,444)	(238)			(1,208)	$ 2
Other comprehensive income (loss)	1,375			782	593
Stock-based compensation	8,599	5,420			3,179
Cash dividends declared	(17,350)		(17,350)
Net income	59,215		34,446		24,769
Balance at the end of the period (shares) at Dec. 31, 2020						47,713	27,655
Balance at the end of the period at Dec. 31, 2020	550,770	202,077	150,086	330	197,800	$ 477	$ 0
Statement of Stockholders'/Members' Equity
Member distributions	(9,742)				(9,742)
Effect of CW Unit redemptions (in shares)						10,981	(10,981)
Effect of CW Unit redemptions	0	79,276			(79,386)	$ 110
Tax impact of equity transactions	2,998	2,998
Equity award vestings (in shares)						341
Equity award vestings	(3,283)	(1,141)			(2,145)	$ 3
Other comprehensive income (loss)	(567)			(322)	(245)
Stock-based compensation	8,620	6,390			2,230
Cash dividends declared	(21,233)		(21,233)
Net income	67,470		49,593		17,877
Balance at the end of the period (shares) at Dec. 31, 2021						59,035	16,674
Balance at the end of the period at Dec. 31, 2021	$ 595,033	$ 289,600	$ 178,446	$ 8	$ 126,389	$ 590	$ 0