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, 2021	$ 255,220	$ (114,525)	$ (684)	$ 0	$ 368,006	$ 2,394	$ 29		$ 0
Beginning common stock, shares outstanding (in shares) at Dec. 31, 2021							29,139		272
Beginning treasury stock, shares outstanding (in shares) at Dec. 31, 2021				0
Increase (Decrease) in Stockholders' Equity
Exchange of LLC Interests held by LLC Owners (in shares)							20		(20)
Exchange of LLC Interests held by LLC Owners	0				192	(192)
Other comprehensive income (loss)	(2,475)		(2,454)			(21)
Treasury stock purchased (in shares)				373
Treasury stock purchased	(3,857)			$ (3,857)
Stock based compensation expense	8,904				8,826	78
Exercise of Options to purchase common stock (in shares)							2
Exercise of Options to purchase common stock	115				115
Issuance of stock vesting of RSU's, net of tax withholdings (in shares)							158
Issuance of stock vesting of RSU's, net of tax withholdings	(862)				(862)
Net income (loss)	(41,733)	(41,373)				(360)
Ending balance at Sep. 30, 2022	215,312	(155,898)	(3,138)	$ (3,857)	376,277	1,899	$ 29		$ 0
Ending common stock, shares outstanding (in shares) at Sep. 30, 2022							29,319		252
Ending treasury stock, shares outstanding (in shares) at Sep. 30, 2022				373
Beginning balance at Dec. 31, 2021	$ 255,220	(114,525)	(684)	$ 0	368,006	2,394	$ 29		$ 0
Beginning common stock, shares outstanding (in shares) at Dec. 31, 2021							29,139		272
Beginning treasury stock, shares outstanding (in shares) at Dec. 31, 2021				0
Increase (Decrease) in Stockholders' Equity
Exercise of Options to purchase common stock (in shares)	2
Ending balance at Dec. 31, 2022	$ 211,793	(162,733)	(2,224)	$ (3,857)	378,709	1,869	$ 29		$ 0
Ending common stock, shares outstanding (in shares) at Dec. 31, 2022							29,348	252	252
Ending treasury stock, shares outstanding (in shares) at Dec. 31, 2022	373			373
Beginning balance at Jun. 30, 2022	$ 267,441	(106,762)	(2,203)	$ 0	374,057	2,320	$ 29		$ 0
Beginning common stock, shares outstanding (in shares) at Jun. 30, 2022							29,304		252
Beginning treasury stock, shares outstanding (in shares) at Jun. 30, 2022				0
Increase (Decrease) in Stockholders' Equity
Other comprehensive income (loss)	(942)		(935)			(7)
Treasury stock purchased (in shares)				373
Treasury stock purchased	(3,857)			$ (3,857)
Stock based compensation expense	2,238				2,217	21
Issuance of stock vesting of RSU's, net of tax withholdings (in shares)							15
Issuance of stock vesting of RSU's, net of tax withholdings	3				3
Net income (loss)	(49,571)	(49,136)				(435)
Ending balance at Sep. 30, 2022	215,312	(155,898)	(3,138)	$ (3,857)	376,277	1,899	$ 29		$ 0
Ending common stock, shares outstanding (in shares) at Sep. 30, 2022							29,319		252
Ending treasury stock, shares outstanding (in shares) at Sep. 30, 2022				373
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	252
Beginning treasury stock, shares outstanding (in shares) at Dec. 31, 2022	373			373
Increase (Decrease) in Stockholders' Equity
Exchange of LLC Interests held by LLC Owners (in shares)							13		(13)
Exchange of LLC Interests held by LLC Owners	$ 0				122	(122)
Other comprehensive income (loss)	513		509			4
Stock based compensation expense	8,059				7,992	67
Issuance of stock vesting of RSU's, net of tax withholdings (in shares)							197
Issuance of stock vesting of RSU's, net of tax withholdings	(984)				(984)
Net income (loss)	19,790	19,618				172
Ending balance at Sep. 30, 2023	$ 239,171	(143,115)	(1,715)	$ (3,857)	385,839	1,990	$ 29		$ 0
Ending common stock, shares outstanding (in shares) at Sep. 30, 2023							29,558	239	239
Ending treasury stock, shares outstanding (in shares) at Sep. 30, 2023	373			373
Beginning balance at Jun. 30, 2023	$ 235,603	(143,566)	(1,990)	$ (3,857)	383,020	1,967	$ 29		$ 0
Beginning common stock, shares outstanding (in shares) at Jun. 30, 2023							29,551		244
Beginning treasury stock, shares outstanding (in shares) at Jun. 30, 2023				373
Increase (Decrease) in Stockholders' Equity
Exchange of LLC Interests held by LLC Owners (in shares)							5		(5)
Exchange of LLC Interests held by LLC Owners	0				7	(7)
Other comprehensive income (loss)	277		275			2
Stock based compensation expense	2,850				2,827	23
Issuance of stock vesting of RSU's, net of tax withholdings (in shares)							2
Issuance of stock vesting of RSU's, net of tax withholdings	(15)				(15)
Net income (loss)	456	451				5
Ending balance at Sep. 30, 2023	$ 239,171	$ (143,115)	$ (1,715)	$ (3,857)	$ 385,839	$ 1,990	$ 29		$ 0
Ending common stock, shares outstanding (in shares) at Sep. 30, 2023							29,558	239	239
Ending treasury stock, shares outstanding (in shares) at Sep. 30, 2023	373			373