CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY AND REDEEMABLE NON-CONTROLLING INTERESTS - USD ($) $ in Thousands	Total	Parent	Common stock ($0.001 par value per share)	Common stock ($0.001 par value per share) Class A Stock	Additional paid-in capital	Additional paid-in capital Class A Stock	Retained earnings	Retained earnings Class A Stock	Accumulated other comprehensive income	Non-controlling interests
Balance at beginning of year at Dec. 31, 2021			$ 13		$ 78,032		$ 740,926		$ 4,225	$ 2,069
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of Class A non-voting common stock						$ 2,924
Repurchase of Class A non-voting common stock for cancellation				$ (2)		(58,581)		$ (2,055)
Share-based expense					11,555
Vested employee share plan awards					(5,081)
Change in redemption value of redeemable non-controlling interests	$ 1,237				(221)					(1,016)
Net income (loss) attributable to non-controlling interests	32,110						32,351			(241)
Dividends paid							(7,044)
Currency translation adjustment	(2,809)								(2,809)
Capital distribution to non-controlling interests										(90)
Balance at end of year at Dec. 31, 2022	794,955	$ 794,233	11		28,628		764,178		1,416	722
Balance at beginning of year at Dec. 31, 2021	127,765
Increase (Decrease) in Temporary Equity [Roll Forward]
Redemption of redeemable non-controlling interests	(103,536)
Change in redemption value of redeemable non-controlling interests	1,237				(221)					(1,016)
Balance at end of year at Dec. 31, 2022	$ 25,466
Increase (Decrease) in Temporary Equity [Roll Forward]
Dividends paid per share (in dollars per share)	$ 0.60
Issuance of Class A non-voting common stock						6,061
Repurchase of Class A non-voting common stock for cancellation				(1)		(3,936)		(31,437)
Share-based expense					13,058
Vested employee share plan awards					(11,892)
Change in redemption value of redeemable non-controlling interests	$ 689				(145)					(544)
Net income (loss) attributable to non-controlling interests	30,272						30,179			93
Dividends paid							(6,452)
Currency translation adjustment	(502)								(502)
Capital distribution to non-controlling interests										(198)
Balance at end of year at Dec. 31, 2023	789,239	789,166	10		31,774		756,468		914	73
Increase (Decrease) in Temporary Equity [Roll Forward]
Redemption of redeemable non-controlling interests	(26,155)
Change in redemption value of redeemable non-controlling interests	689				(145)					(544)
Balance at end of year at Dec. 31, 2023	$ 0
Increase (Decrease) in Temporary Equity [Roll Forward]
Dividends paid per share (in dollars per share)	$ 0.60
Issuance of Class A non-voting common stock						8,800
Repurchase of Class A non-voting common stock for cancellation				$ 0		$ (8,384)		$ (1,219)
Share-based expense					12,859
Vested employee share plan awards					(15,580)
Change in redemption value of redeemable non-controlling interests	$ 0				264					237
Net income (loss) attributable to non-controlling interests	71,247						71,557			(310)
Dividends paid							(6,845)
Currency translation adjustment	(223)								(223)
Capital distribution to non-controlling interests										0
Balance at end of year at Dec. 31, 2024	850,395	$ 850,395	$ 10		29,733		$ 819,961		$ 691	0
Increase (Decrease) in Temporary Equity [Roll Forward]
Redemption of redeemable non-controlling interests	0
Change in redemption value of redeemable non-controlling interests	0				$ 264					$ 237
Balance at end of year at Dec. 31, 2024	$ 0
Increase (Decrease) in Temporary Equity [Roll Forward]
Dividends paid per share (in dollars per share)	$ 0.66