Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Cash flows from operating activities:
Net income (loss)	$ 10,757	$ (24,620)	$ 20,546
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization	35,769	31,333	26,106
Equity-based compensation expense	22,044	34,298	16,267
Bad debt expense	2,581	(1,345)	2,903
Deferred income tax expense (benefit)	(183)	(2,528)	1,899
Fair value adjustments to contingent consideration	(133)	309	814
Impairment charge - goodwill	7,100	5,123	0
Impairment charge - leased assets	6,248		7,902
Loss (gain) on sale or disposition of assets, net	1,320	(6)	601
Non-cash lease benefit	(2,108)	(1,335)	(508)
Non-cash loss on lease termination	1,175
Non-cash debt charges	861	905	454
Non-cash change in tax receivable agreements liability	(628)	382
Other, net	47	(113)	(4)
Changes in operating assets and liabilities
Accounts and notes receivable, current portion	2,789	3,329	(3,460)
Other current and noncurrent assets	5,163	(2,090)	(10,665)
Other current and noncurrent liabilities	(17,533)	11,882	9,035
Payments pursuant to tax receivable agreements	(3,314)	(3,444)	(3,562)
Income taxes receivable/payable	(871)	(9,775)	2,109
Deferred revenue, current and noncurrent	58	137	410
Net cash provided by operating activities	71,142	42,442	70,847
Cash flows from investing activities:
Purchases of property, equipment and capitalization of software	(9,932)	(15,239)	(6,903)
Acquisitions, net of cash, cash equivalents and restricted cash acquired in prior years of $14.1 million and $0.9 million, respectively		(180,002)	(10,627)
Other	(1,568)	319
Net cash used in investing activities	(11,500)	(194,922)	(17,530)
Cash flows from financing activities:
Proceeds from the issuance of debt		458,850
Payments on debt	(4,600)	(227,390)	(2,634)
Capitalized debt amendment costs		(3,871)
Distributions paid to non-controlling unitholders	(13,832)	(14,206)	(14,058)
Dividends and dividend equivalents paid to Class A common stockholders	(18,186)	(17,833)	(16,354)
Payments related to tax withholding for share-based compensation	(6,524)	(5,329)	(2,544)
Common shares repurchased	(34,101)
Payment of contingent consideration	(1,120)	(869)	(409)
Net cash (used in) provided by financing activities	(78,363)	189,352	(35,999)
Effect of exchange rate changes on cash	(1,550)	300	308
Net (decrease) increase in cash, cash equivalents and restricted cash	(20,271)	37,172	17,626
Cash, cash equivalents and restricted cash, beginning of period	158,399	121,227	103,601
Cash, cash equivalents and restricted cash, end of period	138,128	158,399	121,227
Supplemental disclosures of cash flow information:
Cash paid for interest	19,826	10,794	8,663
Net cash paid for income taxes	6,530	$ 14,908	4,993
Cash paid for lease termination	$ 1,285
Schedule of non-cash investing activities:
Class A shares issued as consideration for acquisitions			$ 8,800