Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended				9 Months Ended		12 Months Ended
	Sep. 30, 2024	Mar. 31, 2024	Sep. 30, 2023	Mar. 31, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income (loss)	$ 4,132	$ (597)	$ (21,202)	$ 2,184	$ 24,980	$ (116,362)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization of software, equipment, and property					29,520	28,025
Amortization of intangible assets					62,654	73,927
Impairment of goodwill and intangible assets					0	82,742
Deferred income taxes					(32,941)	(40,785)
Stock-based compensation					127,221	104,471
Amortization of deferred financing fees					1,452	1,295
Amortization of discount on debt					191	170
Change in fair value of derivative instruments	4,641		446		4,775	(563)
Change in fair value of warrant liabilities	0		26,223		(14,378)	45,403
Non-cash lease expense					0	1,232
Loss on disposal of software, equipment and property					302	0
Other					163	171
Changes in:
Accounts receivable—Net					(27,237)	(19,340)
Deferred contract costs					(1,807)	(438)
Other current assets					1,670	6,727
Deferred contract costs—Non-current					906	582
Other assets					1,724	(3,572)
Operating lease assets					1,580	581
Income taxes					(203)	12,223
Accounts payable					5,483	(9,368)
Accrued expenses					(14,896)	(9,335)
Operating lease liabilities					(2,878)	(1,181)
Deferred revenues					3,024	6,646
Other liabilities					(1,064)	(113)
Net cash provided by operating activities					170,241	163,138
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of software, equipment, and property					(45,073)	(43,187)
Net cash used in investing activities					(45,073)	(43,187)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from exercise of stock options					23,997	23,051
Proceeds from employee stock purchase plan					5,745	4,761
Payments for employee taxes withheld upon vesting of equity awards					(57,519)	(16,429)
Payments of fees associated with the revolver debt modification					(661)	0
Principal payments on long-term debt					(6,000)	(6,000)
Net cash (used in) provided by financing activities					(34,438)	5,383
NET EFFECT OF EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS					1	(389)
NET CHANGE IN CASH AND CASH EQUIVALENTS					90,731	124,945
Beginning of period		$ 195,572		$ 323,788	195,572	323,788	$ 323,788
End of period	$ 286,303		$ 448,733		286,303	448,733	$ 195,572
NONCASH INVESTING AND FINANCING ACTIVITIES:
Noncash purchases of software, equipment, and property					7,305	1,923
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION:
Cash paid for interest					48,294	40,983
Cash paid for income taxes-Net					$ 42,137	$ 27,316