CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY - USD ($) $ in Thousands	Class A Common Stock Common Stock	Class B Common Stock Common Stock	Total Stockholders' Equity	Additional Paid-In Capital	Accumulated Deficit.	Noncontrolling Interests.	Total
Beginning balance at Dec. 31, 2020	$ 868	$ 162	$ 593,061	$ 909,278	$ (317,247)	$ 112,821	$ 705,882
Beginning balance (in shares) at Dec. 31, 2020	86,812,647	16,221,101
Increase (Decrease) in Stockholders' Equity [Roll Forward]
ESPP shares issued			44	44		(1)	43
ESPP shares issued (in shares)	7,787
Equity-based compensation			5,290	5,290		958	6,248
Issuance of restricted shares	$ 22		2,184	2,162		(2,185)	(1)
Issuance of restricted shares (in shares)	2,154,897
Issuance of shares for acquisitions	$ 36		20,663	20,627		(359)	20,304
Issuance of shares for acquisition (in shares)	3,600,000
Other			5	5			5
Other (in shares)	738
Repurchase of common stock	$ (2)		(1,225)	(1,223)		19	(1,206)
Repurchase of common stock ( in shares)	(199,976)
Restricted shares forfeited	$ (3)		(335)	(332)		335
Restricted shares forfeited (in shares)	(319,874)
Noncontrolling interest in subsidiary			(140)	(140)		(934)	(1,074)
NCI income tax adjustment			31	31		(31)
Net income (loss)			(51,718)		(51,718)	(9,522)	(61,240)
Ending balance at Sep. 30, 2021	$ 921	$ 162	567,860	935,742	(368,965)	101,101	668,961
Ending balance (in shares) at Sep. 30, 2021	92,056,219	16,221,101
Beginning balance at Jun. 30, 2021	$ 882	$ 162	556,995	912,872	(356,921)	103,551	660,546
Beginning balance (in shares) at Jun. 30, 2021	88,160,703	16,221,101
Increase (Decrease) in Stockholders' Equity [Roll Forward]
ESPP shares issued			14	14			14
ESPP shares issued (in shares)	2,906
Equity-based compensation			1,957	1,957		345	2,302
Issuance of restricted shares	$ 3		284	281		(285)	(1)
Issuance of restricted shares (in shares)	311,089
Issuance of shares for acquisitions	$ 36		20,663	20,627		(359)	20,304
Issuance of shares for acquisition (in shares)	3,600,000
Restricted shares forfeited			(17)	(17)		17
Restricted shares forfeited (in shares)	(18,479)
NCI income tax adjustment			8	8		(8)
Net income (loss)			(12,044)		(12,044)	(2,160)	(14,204)
Ending balance at Sep. 30, 2021	$ 921	$ 162	567,860	935,742	(368,965)	101,101	668,961
Ending balance (in shares) at Sep. 30, 2021	92,056,219	16,221,101
Beginning balance at Dec. 31, 2021	$ 942	$ 162	592,096	950,464	(359,472)	103,078	695,174
Beginning balance (in shares) at Dec. 31, 2021	94,172,920	16,221,101
Increase (Decrease) in Stockholders' Equity [Roll Forward]
ESPP shares issued			34	34		1	35
ESPP shares issued (in shares)	4,681
Equity-based compensation			9,454	9,454		1,569	11,023
Issuance of restricted shares	$ 25		2,245	2,220		(2,245)
Issuance of restricted shares (in shares)	2,529,231
Issuance of shares for acquisitions	$ 42		34,498	34,456		1,356	35,854
Issuance of shares for acquisition (in shares)	4,203,323
Stock options exercised	$ 1		584	583		24	608
Stock options exercised (in shares)	70,000
Repurchase of common stock	$ (28)		(20,137)	(20,109)		(438)	(20,575)
Repurchase of common stock ( in shares)	(2,794,983)
Restricted shares forfeited	$ (1)		(79)	(78)		79
Restricted shares forfeited (in shares)	(87,242)
NCI income tax adjustment			39	39		(39)
Net income (loss)			40,629		40,629	6,654	47,283
Ending balance at Sep. 30, 2022	$ 981	$ 162	659,363	977,063	(318,843)	110,039	769,402
Ending balance (in shares) at Sep. 30, 2022	98,097,930	16,221,101
Beginning balance at Jun. 30, 2022	$ 982	$ 162	635,043	974,066	(340,167)	106,102	741,145
Beginning balance (in shares) at Jun. 30, 2022	98,160,573	16,221,101
Increase (Decrease) in Stockholders' Equity [Roll Forward]
ESPP shares issued			10	10			10
ESPP shares issued (in shares)	1,541
Equity-based compensation			3,265	3,265		539	3,804
Repurchase of common stock	$ (1)		(269)	(268)		(2)	(271)
Repurchase of common stock ( in shares)	(40,060)
Restricted shares forfeited			(22)	(22)		22
Restricted shares forfeited (in shares)	(24,124)
NCI income tax adjustment			12	12		(15)	(3)
Net income (loss)			21,324		21,324	3,393	24,717
Ending balance at Sep. 30, 2022	$ 981	$ 162	$ 659,363	$ 977,063	$ (318,843)	$ 110,039	$ 769,402
Ending balance (in shares) at Sep. 30, 2022	98,097,930	16,221,101