Consolidated Statements of Cash Flows - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Cash flows from operating activities
Net income (loss)		$ 16,390	$ (8,868)	$ (32,828)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization		69,538	107,668	54,177
Loss on extinguishment of debt		2,077	0	0
Amortization of debt issuance costs		2,497	3,382	3,413
Non-cash operating lease expense		4,184	4,104	3,349
Stock-based compensation expense		99,026	104,820	120,234
Change in fair value of contingent consideration		0	0	18,057
Deferred income taxes		(11,914)	(65,562)	(497)
Gain on sale of business		0	0	(11,404)
Loss on operating lease assets		0	1,353	12,569
Loss on disposal of capitalized software		0	7,975	0
Loss on minority equity interest investment		0	4,008	0
Other		0	1,348	0
Changes in operating assets and liabilities, net of effects of business acquisitions
Accounts receivable		(2,326)	(26,467)	1,375
Prepaid expenses and other assets		6,327	(32,162)	(13,644)
Accounts payable		(21,241)	17,456	(874)
Accrued expenses and other current liabilities		25,709	21,253	(5,268)
Operating lease liabilities		(4,953)	(2,930)	(4,004)
Other liabilities		(1,422)	914	2,125
Net cash provided by operating activities		183,892	138,292	146,780
Cash flows from investing activities
Purchase of property and equipment		(1,240)	(1,043)	(3,967)
Acquisitions, net of cash acquired		0	0	(156,853)
Capitalized software		(69,107)	(54,723)	(51,247)
Investment in minority equity interest		0	0	(15,007)
Proceeds from sale of business		0	0	16,576
Net cash used in investing activities		(70,347)	(55,766)	(210,498)
Cash flows from financing activities
Proceeds from long-term debt		472,033	0	0
Payments on long-term debt		(639,038)	(5,271)	(7,029)
Payments of debt issuance costs		(2,673)	0	0
Repurchases of Class A common stock	[1]	(158,845)	(103,974)	(101,721)
Proceeds from exercise of stock options		19,046	5,941	9,159
Employee taxes paid related to net share settlement of equity awards		(29,784)	(65,481)	(20,635)
Proceeds from employee stock purchase plan		1,766	1,390	0
Net cash used in financing activities		(337,495)	(167,395)	(120,226)
Net change in cash and cash equivalents		(223,950)	(84,869)	(183,944)
Cash and cash equivalents
Beginning of period		672,296	757,165	941,109
End of period		448,346	672,296	757,165
Supplemental disclosure of cash flow information
Income tax paid, net		23,623	17,243	4,356
Interest paid		55,099	48,799	30,702
Non cash investing and financing activities:
Right-of-use assets obtained in exchange for new operating lease liabilities		2,049	52	22,491
Stock-based compensation included in capitalized software		16,124	13,144	8,969
Capitalized software included in accounts payable and accrued expenses and other current liabilities		8,118	7,826	4,176
Capitalized software transferred from prepaid assets		$ 0	$ 5,751	$ 0

[1] Repurchases of Class A common stock for the year ended December 31, 2024 and 2023 include 20.9 million and 12.0 million shares repurchased from related parties (after giving effect to the automatic conversion of Class B common stock to Class A common stock upon such repurchase) for an aggregate consideration of $151.4 million, and $65.9 million, respectively. See "Note 14. Stockholders' Equity" for additional information.