CONDENSED 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, 2022						60,903	14,978
Balance at the beginning of the period at Dec. 31, 2022	$ 710,445	$ 310,528	$ 261,764	$ (984)	$ 138,528	$ 609	$ 0
Balance at the end of the period (in shares) at Jun. 30, 2023						64,609	14,820
Balance at the end of the period at Jun. 30, 2023	952,774	446,206	315,049	(1,096)	191,968	$ 647	$ 0
Balance at the beginning of the period (in shares) at Dec. 31, 2022						60,903	14,978
Balance at the beginning of the period at Dec. 31, 2022	710,445	310,528	261,764	(984)	138,528	$ 609	$ 0
Statement of Stockholders'/Members' Equity
Issuance of common stock (in shares)						3,352
Issuances of common stock	169,369	143,302			26,033	$ 34
Member distributions	(13,926)				(13,926)
Effect of CC Unit redemptions (in shares)						872	(872)
Effect of CC Unit redemptions	0	11,773			(11,782)	$ 9
Tax impact of equity transactions	5,747	(10,979)			16,726
Equity award vestings (in shares)						200
Equity award vestings	(4,440)	(3,071)			(1,371)	$ 2
Other comprehensive income (loss)	(812)			(663)	(149)
Share repurchases (in shares)						(4)
Share repurchases	(159)	(137)			(22)
Stock-based compensation	13,370	10,886			2,484
Cash dividends declared	(22,289)		(22,289)
Net income	152,766		120,224		32,542
Balance at the end of the period (in shares) at Sep. 30, 2023						65,323	14,106
Balance at the end of the period at Sep. 30, 2023	1,010,071	462,302	359,699	(1,647)	189,063	$ 654	$ 0
Balance at the beginning of the period (in shares) at Jun. 30, 2023						64,609	14,820
Balance at the beginning of the period at Jun. 30, 2023	952,774	446,206	315,049	(1,096)	191,968	$ 647	$ 0
Statement of Stockholders'/Members' Equity
Member distributions	(9,214)				(9,214)
Effect of CC Unit redemptions (in shares)						714	(714)
Effect of CC Unit redemptions	0	9,753			(9,760)	$ 7
Tax impact of equity transactions	2,474	2,574			(100)
Other comprehensive income (loss)	(670)			(551)	(119)
Stock-based compensation	4,618	3,769			849
Cash dividends declared	(7,930)		(7,930)
Net income	68,019		52,580		15,439
Balance at the end of the period (in shares) at Sep. 30, 2023						65,323	14,106
Balance at the end of the period at Sep. 30, 2023	1,010,071	462,302	359,699	(1,647)	189,063	$ 654	$ 0
Balance at the beginning of the period (in shares) at Dec. 31, 2023						65,409	14,034
Balance at the beginning of the period at Dec. 31, 2023	1,064,770	465,012	400,682	(826)	199,248	$ 654	$ 0
Statement of Stockholders'/Members' Equity
Member distributions	(10,444)				(10,444)
Effect of CC Unit redemptions (in shares)						1,106	(1,106)
Effect of CC Unit redemptions	0	16,854			(16,865)	$ 11
Tax impact of equity transactions	603	603
Equity award vestings (in shares)						228
Equity award vestings	(5,949)	(4,284)			(1,667)	$ 2
Other comprehensive income (loss)	140			87	53
Share repurchases (in shares)						(87)
Share repurchases	(3,372)	(2,996)			(375)	$ (1)
Stock-based compensation	16,142	13,422			2,720
Cash dividends declared	(24,921)		(24,921)
Net income	175,311		138,720		36,591
Balance at the end of the period (in shares) at Sep. 30, 2024						66,656	12,928
Balance at the end of the period at Sep. 30, 2024	1,212,280	488,611	514,481	(739)	209,261	$ 666	$ 0
Balance at the beginning of the period (in shares) at Jun. 30, 2024						66,480	13,082
Balance at the beginning of the period at Jun. 30, 2024	1,154,796	481,960	473,391	(1,340)	200,120	$ 665	$ 0
Statement of Stockholders'/Members' Equity
Member distributions	(1,827)				(1,827)
Effect of CC Unit redemptions (in shares)						154	(154)
Effect of CC Unit redemptions	0	2,448			(2,449)	$ 1
Tax impact of equity transactions	70	70
Equity award vestings (in shares)						22
Equity award vestings	(832)	(640)			(192)
Other comprehensive income (loss)	769			601	168
Stock-based compensation	5,704	4,773			931
Cash dividends declared	(8,837)		(8,837)
Net income	62,437		49,927		12,510
Balance at the end of the period (in shares) at Sep. 30, 2024						66,656	12,928
Balance at the end of the period at Sep. 30, 2024	$ 1,212,280	$ 488,611	$ 514,481	$ (739)	$ 209,261	$ 666	$ 0