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)	$ 25,526	$ (152,815)	$ (124,717)
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	44,893	45,939	41,038
Amortization of debt issuance costs	4,447	4,138	4,085
Stock-based compensation expense	107,961	111,636	119,902
Impairment of long-lived assets	0	30,784	0
Change in fair value of derivative assets	0	15,511	0
Deferred income taxes	791	(5,624)	(1,440)
Induced conversion expense	0	53,889	0
Other	(1,503)	469	(200)
Changes in assets and liabilities:
Accounts receivable	(5,480)	(14,021)	(9,050)
Deferred contract acquisition and fulfillment costs	(4,196)	(18,534)	(15,910)
Prepaid expenses and other assets	2,805	(4,125)	(2,231)
Accounts payable	2,777	5,449	7,977
Accrued expenses	(9,829)	2,422	3,741
Deferred revenue	(795)	30,472	52,516
Other liabilities	4,273	(1,312)	2,493
Net cash provided by operating activities	171,670	104,278	78,204
Cash flows from investing activities:
Business acquisitions, net of cash acquired	(37,301)	(34,841)	0
Purchases of property and equipment	(3,425)	(4,366)	(20,382)
Capitalization of internal-use software	(14,162)	(15,878)	(17,145)
Purchases of investments	(242,494)	(276,829)	(122,765)
Sales and maturities of investments	250,500	150,450	121,304
Other investing activities	360	2,710	(1,000)
Net cash used in investing activities	(46,522)	(178,754)	(39,988)
Cash flows from financing activities:
Proceeds from issuance of convertible senior notes, net of issuance costs paid of $7,909	0	292,091	0
Purchase of capped calls related to convertible senior notes	0	(36,570)	0
Payment of debt issuance costs	0	0	(71)
Payments for repurchase of convertible senior notes	0	(199,998)	(12)
Payments related to business acquisitions	(500)	(2,250)	(300)
Proceeds from capped call settlement	0	17,518	0
Taxes paid related to net share settlement of equity awards	(4,730)	(5,570)	(7,462)
Proceeds from employee stock purchase plan	9,246	11,323	11,943
Proceeds from stock option exercises	1,566	3,053	3,318
Net cash provided by financing activities	5,582	79,597	7,416
Effect of exchange rate changes on cash, cash equivalents and restricted cash	(2,756)	1,202	(2,845)
Net increase in cash, cash equivalents and restricted cash	127,974	6,323	42,787
Cash, cash equivalents and restricted cash, beginning of period	214,127	207,804	165,017
Cash, cash equivalents and restricted cash, end of period	342,101	214,127	207,804
Supplemental cash flow information:
Cash paid for interest on convertible senior notes	6,358	4,605	6,675
Cash paid for income taxes, net of refunds	8,949	1,624	1,571
Reconciliation of cash, cash equivalents and restricted cash:
Cash and cash equivalents	334,686	213,629	207,287
Restricted cash included in prepaid expenses and other current assets and other assets	7,415	498	517
Total cash, cash equivalents and restricted cash	$ 342,101	$ 214,127	$ 207,804