Condensed Consolidated Statements of Cash Flows (unaudited) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended		12 Months Ended
	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Cash flows from operating activities:
Net loss		$ (55,255)	$ (55,610)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Depreciation and amortization		30,691	23,854
Amortization of deferred costs		8,740	7,184
Deferred income taxes		(7,568)	(9,778)
Accretion of interest on convertible senior notes		2,324	15,821
(Gain) Loss on disposal of assets		934	(1)
Loss on extinguishment of convertible notes and capped call modification	$ 37		2,925
Provision for credit losses and sales reserve		278	1,905
Stock-based compensation		22,295	28,190
Other non-cash adjustments		(57)	(31)
Changes in operating assets and liabilities:
Accounts receivable		23,031	19,312
Prepaid expenses		(2,068)	(922)
Deferred costs		(10,530)	(8,107)
Other assets		6,223	(850)
Accounts payable		(4,187)	(60)
Accrued payroll and employee related liabilities		(7,971)	(5,320)
Accrued expenses		1,837	971
Deferred revenue		(4,526)	(180)
Other liabilities		(6,413)	(4,632)
Net cash provided by (used in) operating activities		(2,222)	14,671
Cash flows from investing activities:
Capital expenditures		(2,726)	(2,128)
Payment for acquisition of business, net of acquired cash		(47)	(197,666)
Additions to capitalized software development costs		(7,436)	(6,082)
Net cash used in investing activities		(10,209)	(205,876)
Cash flows from financing activities:
Proceeds from issuance of convertible notes			375,000
Payments of debt issuance costs			(10,391)
Purchase of convertible notes capped call hedge			(35,100)
Repurchase of convertible notes			(58,641)
Proceeds from termination of convertible notes capped call hedge			10,650
Stock award shares withheld to settle employee tax withholding liability		(2,295)	(2,843)
Proceeds from employee stock purchase plan		1,702	2,451
Proceeds from stock option exercises		82	2,163
Other		(38)
Net cash provided by (used in) financing activities		(549)	283,289
Effect of exchange rates on cash, cash equivalents and restricted cash		(2,299)	588
Net increase (decrease) in cash, cash equivalents and restricted cash		(15,279)	92,672
Cash, cash equivalents and restricted cash—beginning of period		492,758	475,630	$ 475,630
Cash, cash equivalents and restricted cash—end of period	$ 568,302	477,479	568,302	$ 492,758
Supplemental disclosures of cash flow information:
Interest		281	610
Taxes, net of refunds received		1,179	935
Supplemental disclosure of non-cash activities:
Common stock issued in connection with acquisition			87,514
Contingent consideration in connection with acquisition			9,135
Common stock issued in connection with contingent consideration payment			720
Common stock issued in connection with settlement of convertible notes			16,826
Stock-based compensation capitalized for software development costs		865	215
Other non-cash activities		$ 355	$ 470