Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Cash flows from operating activities
Net (loss) income	$ (30,856)	$ 14,660
Adjustments to reconcile net (loss) income to net cash provided by operating activities:
Depreciation and amortization	38,644	23,891
Amortization of debt issuance costs	2,562	2,586
Non-cash operating lease expense	2,314	2,451
Stock-based compensation expense	90,820	127,182
Change in fair value of contingent consideration	16,857	0
Deferred income taxes	(141)	(33,217)
Loss on abandonment of operating lease assets	0	1,430
Changes in operating assets and liabilities, net of effects of business acquisitions
Accounts receivable	(2,370)	(24,380)
Prepaid expenses and other assets	(3,137)	5,696
Accounts payable	(8,011)	4,322
Accrued expenses and other current liabilities	9,097	5,311
Operating lease liabilities	(3,415)	(1,501)
Other liabilities	2,537	538
Net cash provided by operating activities	114,901	128,969
Cash flows from investing activities
Purchase of property and equipment	(3,817)	(3,764)
Acquisitions, net of cash acquired	(156,853)	(140,268)
Capitalized software	(36,107)	(21,434)
Investment in minority equity interest	(15,007)	(4,008)
Net cash used in investing activities	(211,784)	(169,474)
Cash flows from financing activities
Payments on long-term debt	(5,272)	(5,272)
Payment for contingent consideration	0	(832)
Repurchases of Class A common stock	(101,721)	0
Proceeds from exercise of stock options	9,110	29,715
Employee taxes paid related to net share settlement of equity awards	(17,557)	(42,674)
Net cash used in financing activities	(115,440)	(19,063)
Net change in cash, cash equivalents and restricted cash	(212,323)	(59,568)
Cash, cash equivalents and restricted cash
Beginning of period	941,109	971,591
End of period	728,786	912,023
Non cash investing and financing activities
Right-of-use assets obtained in exchange for new operating lease liabilities	2,311	523
Stock-based compensation included in capitalized software	$ 6,958	$ 6,031