Condensed Consolidated Statements of Cash Flows - USD ($)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
CASH FLOWS FROM OPERATING ACTIVITIES:
Net (loss) income	$ (90,071,000)	$ 38,406,000	$ (248,919,000)
Adjustments to reconcile net (loss) income to net cash provided by operating activities:
Depreciation and amortization of software, equipment, and property	36,902,000	27,933,000	24,451,000
Amortization of intangible assets	98,436,000	99,216,000	98,678,000
Impairment of goodwill and intangible assets	82,742,000	0	0
Deferred income taxes	(46,333,000)	(34,401,000)	(46,883,000)
Stock-based compensation	144,518,000	109,497,000	261,995,000
Amortization of deferred financing fees	1,753,000	1,878,000	3,682,000
Amortization of discount on debt	233,000	257,000	604,000
Change in fair value of derivative instruments	5,743,000	(5,663,000)	0
Change in fair value of interest rate swap agreements	0	0	(8,373,000)
Change in fair value of warrant liabilities	15,096,000	(26,073,000)	64,501,000
Change in fair value of estimated contingent consideration	0	(100,000)	0
Loss on early extinguishment of debt	0	0	15,240,000
Non-cash lease expense	1,232,000	3,697,000	6,279,000
Gain on divestitures	0	0	(600,000)
Gain on sale of cost method investment	0	(3,587,000)	0
Loss on disposal of software, equipment and property	79,000	2,651,000	0
Other	620,000	104,000	541,000
Changes in:
Accounts receivable—Net	(4,001,000)	(19,844,000)	(4,725,000)
Deferred contract costs	(1,344,000)	(1,487,000)	(3,152,000)
Other current assets	4,046,000	9,792,000	(12,273,000)
Deferred contract costs—Non-current	(2,141,000)	1,956,000	(7,728,000)
Other assets	(3,649,000)	(14,501,000)	(7,838,000)
Operating lease assets	1,186,000	3,448,000	6,354,000
Income taxes	4,984,000	(10,018,000)	3,833,000
Accounts payable	(11,270,000)	15,516,000	(1,052,000)
Accrued expenses	1,041,000	4,592,000	8,347,000
Operating lease liabilities	(2,145,000)	(7,241,000)	(8,398,000)
Deferred revenues	8,321,000	4,196,000	4,513,000
Extinguishment of interest rate swap liability	0	0	(9,987,000)
Other liabilities	4,055,000	(317,000)	(11,755,000)
Net cash provided by operating activities	250,033,000	199,907,000	127,335,000
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of software, equipment, and property	(55,032,000)	(47,951,000)	(38,321,000)
Proceeds from sale of cost method investment	0	3,901,000	0
Acquisition of Safekeep, Inc., net of cash	0	(32,242,000)	0
Purchase of equity method investment	0	0	(10,228,000)
Purchase of intangible asset	0	0	(49,000)
Net cash used in investing activities	(55,032,000)	(76,292,000)	(48,598,000)
CASH FLOWS (USED IN) PROVIDED BY FINANCING ACTIVITIES:
Proceeds from exercise of stock options	25,381,000	27,693,000	5,085,000
Proceeds from employee stock purchase plan	4,761,000	3,197,000	0
Principal payments on long-term debt	(8,000,000)	(8,000,000)	(1,336,153,000)
Payments for employee taxes withheld upon vesting of equity awards	(16,715,000)	(5,015,000)	0
Repurchase of common stock	(328,453,000)	0	0
Proceeds from issuance of long-term debt, net of fees paid to lender	0	0	789,927,000
Net proceeds from equity infusion from the Business Combination	0	0	763,300,000
Payment of fees associated with early extinguishment of long-term debt	0	0	(4,821,000)
Dividends to CCCIS stockholders	0	0	(269,174,000)
Deemed distribution to CCCIS option holders	0	0	(9,006,000)
Proceeds from issuance of common stock	0	0	1,007,000
Tax effect of Business Combination transaction costs	0	0	1,395,000
Net cash (used in) provided by financing activities	(323,026,000)	17,875,000	(58,440,000)
NET EFFECT OF EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS	(191,000)	(246,000)	129,000
NET CHANGE IN CASH AND CASH EQUIVALENTS	(128,216,000)	141,244,000	20,426,000
Beginning of period	323,788,000	182,544,000	162,118,000
End of period	195,572,000	323,788,000	182,544,000
NONCASH INVESTING AND FINANCING ACTIVITIES:
Noncash purchases of software, equipment, and property	2,044,000	100,000	8,035,000
Leasehold improvements acquired by tenant improvement allowance	0	0	16,924,000
Fair value of assumed Public Warrants exercised	0	0	60,481,000
Contingent consideration related to business acquisition	0	200,000	0
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION:
Cash paid for interest	61,367,000	36,636,000	54,980,000
Cash paid for income taxes-Net	$ 42,948,000	$ 55,697,000	$ 15,233,000