Condensed Consolidated Statements of Cash Flows (unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Cash flows from operating activities:
Net loss	$ (29,698)	$ (55,255)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Depreciation and amortization	29,658	30,691
Amortization of deferred costs	9,492	8,740
Deferred income taxes	(705)	(7,568)
Accretion of interest on convertible senior notes	1,438	2,324
(Gain) loss on disposal of assets	(352)	934
Provision for credit losses and sales reserve	2,326	278
Stock-based compensation	29,579	22,295
Other non-cash adjustments		(57)
Changes in operating assets and liabilities:
Accounts receivable	21,077	23,031
Prepaid expenses	(612)	(2,068)
Deferred costs	(13,248)	(10,530)
Other assets	(3,829)	6,223
Accounts payable	(934)	(4,187)
Accrued payroll and employee related liabilities	(6,193)	(7,971)
Accrued expenses	(4,512)	1,837
Deferred revenue	(5,173)	(4,526)
Other liabilities	(2,369)	(6,413)
Net cash provided by (used in) operating activities	25,945	(2,222)
Cash flows from investing activities:
Capital expenditures	(2,179)	(2,726)
Proceeds from sale of assets	4,368
Payment for acquisition of business, net of acquired cash		(47)
Additions to capitalized software development costs	(7,869)	(7,436)
Net cash used in investing activities	(5,680)	(10,209)
Cash flows from financing activities:
Payments associated with shares withheld to settle employee tax withholding liability	(3,689)	(2,295)
Proceeds from employee stock purchase plan	2,546	1,702
Proceeds from stock option exercises	1,275	82
Other	(38)	(38)
Net cash provided by (used in) financing activities	94	(549)
Effect of exchange rates on cash, cash equivalents and restricted cash	(71)	(2,299)
Net increase (decrease) in cash, cash equivalents and restricted cash	20,288	(15,279)
Cash, cash equivalents and restricted cash—beginning of period	201,594	492,758
Cash, cash equivalents and restricted cash—end of period	221,882	477,479
Supplemental disclosures of cash flow information:
Interest	83	281
Taxes, net of refunds received	3,367	1,179
Supplemental disclosure of non-cash activities:
Capitalized assets included in accounts payable and accrued expenses	811	355
Stock-based compensation capitalized for software development costs	$ 1,643	$ 865