Condensed Consolidated Statements of Equity - USD ($) shares in Thousands, $ in Thousands	Total	Accumulated Deficit	Accumulated Other Comprehensive Loss	Class A Treasury Stock	Additional Paid-in Capital	Non-controlling Interest	Class A common stock Common Stock	Class B common stock	Class B common stock Common Stock
Beginning balance at Dec. 31, 2022	$ 211,793	$ (162,733)	$ (2,224)	$ (3,857)	$ 378,709	$ 1,869	$ 29		$ 0
Beginning common stock, shares outstanding (in shares) at Dec. 31, 2022							29,348		252
Beginning treasury stock, shares outstanding (in shares) at Dec. 31, 2022				373
Increase (Decrease) in Stockholders' Equity
Exchange of LLC Interests held by LLC Owners (in shares)							8		(8)
Exchange of LLC Interests held by LLC Owners	0				115	(115)
Other comprehensive income	236		234			2
Stock based compensation expense	5,208				5,165	44
Issuance of stock vesting of RSU's, net of tax withholdings (in shares)							195
Issuance of stock vesting of RSU's, net of tax withholdings	(969)				(969)
Net income	19,334	19,167				167
Ending balance at Jun. 30, 2023	235,603	(143,566)	(1,990)	$ (3,857)	383,020	1,967	$ 29		$ 0
Ending common stock, shares outstanding (in shares) at Jun. 30, 2023							29,551		244
Ending treasury stock, shares outstanding (in shares) at Jun. 30, 2023				373
Beginning balance at Mar. 31, 2023	223,149	(153,034)	(2,275)	$ (3,857)	380,429	1,857	$ 29		$ 0
Beginning common stock, shares outstanding (in shares) at Mar. 31, 2023							29,499		244
Beginning treasury stock, shares outstanding (in shares) at Mar. 31, 2023				373
Increase (Decrease) in Stockholders' Equity
Other comprehensive income	287		285			2
Stock based compensation expense	2,743				2,720	23
Issuance of stock vesting of RSU's, net of tax withholdings (in shares)							52
Issuance of stock vesting of RSU's, net of tax withholdings	(129)				(129)
Net income	9,553	9,468				85
Ending balance at Jun. 30, 2023	235,603	(143,566)	(1,990)	$ (3,857)	383,020	1,967	$ 29		$ 0
Ending common stock, shares outstanding (in shares) at Jun. 30, 2023							29,551		244
Ending treasury stock, shares outstanding (in shares) at Jun. 30, 2023				373
Beginning balance at Dec. 31, 2023	$ 222,998	(160,602)	(1,706)	$ (3,857)	387,349	1,785	$ 29		$ 0
Beginning common stock, shares outstanding (in shares) at Dec. 31, 2023							29,570	231	231
Beginning treasury stock, shares outstanding (in shares) at Dec. 31, 2023	373			373
Increase (Decrease) in Stockholders' Equity
Other comprehensive income	$ 1,962		1,706			256
Stock based compensation expense	5,401				5,359	42
Exercise of options to purchase common stock (in shares)							127
Exercise of options to purchase common stock	2,304				2,304
Issuance of stock vesting of RSU's, net of tax withholdings (in shares)							303
Issuance of stock vesting of RSU's, net of tax withholdings	(2,843)				(2,843)
Net income	30,493	30,229				264
Ending balance at Jun. 30, 2024	$ 260,315	(130,373)	0	$ (3,857)	392,169	2,347	$ 29		$ 0
Ending common stock, shares outstanding (in shares) at Jun. 30, 2024							29,999	231	231
Ending treasury stock, shares outstanding (in shares) at Jun. 30, 2024	373			373
Beginning balance at Mar. 31, 2024	$ 237,850	(145,695)	(1,790)	$ (3,857)	387,239	1,924	$ 29		$ 0
Beginning common stock, shares outstanding (in shares) at Mar. 31, 2024							29,827		231
Beginning treasury stock, shares outstanding (in shares) at Mar. 31, 2024				373
Increase (Decrease) in Stockholders' Equity
Other comprehensive income	2,047		1,790			257
Stock based compensation expense	2,792				2,770	22
Exercise of options to purchase common stock (in shares)							127
Exercise of options to purchase common stock	2,304				2,304
Issuance of stock vesting of RSU's, net of tax withholdings (in shares)							45
Issuance of stock vesting of RSU's, net of tax withholdings	(144)				(144)
Net income	15,466	15,322				144
Ending balance at Jun. 30, 2024	$ 260,315	$ (130,373)	$ 0	$ (3,857)	$ 392,169	$ 2,347	$ 29		$ 0
Ending common stock, shares outstanding (in shares) at Jun. 30, 2024							29,999	231	231
Ending treasury stock, shares outstanding (in shares) at Jun. 30, 2024	373			373