Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Cash flows from operating activities:
Net loss	$ (44,544)	$ (25,649)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	5,786	4,967
Amortization of deferred sales commissions	10,508	6,582
Stock-based compensation	26,283	13,342
Allowance for credit losses	301	110
Accretion of marketable securities	(1,815)	0
Non-cash operating lease expense	1,572	1,573
Other	375	75
Changes in operating assets and liabilities:
Accounts receivable	7,805	5,371
Prepaid expenses and other assets	(2,434)	198
Deferred contract costs	(17,302)	(13,038)
Accounts payable, accrued expenses and other liabilities	(4,499)	(21,964)
Content costs payable	(2,292)	(4,355)
Operating lease liabilities	(1,759)	(1,151)
Deferred revenue	2,120	19,964
Net cash used in operating activities	(19,895)	(13,975)
Cash flows from investing activities:
Purchases of marketable securities	(58,463)	0
Proceeds from maturities of marketable securities	42,500	0
Purchases of property and equipment	(100)	(156)
Capitalized software costs	(3,256)	(3,121)
Purchases of strategic investments	0	(5,000)
Net cash used in investing activities	(19,319)	(8,277)
Cash flows from financing activities:
Net proceeds from exercise of stock options	1,180	1,658
Payment of deferred offering costs	0	(1,586)
Net cash provided by financing activities	1,180	72
Effect of foreign exchange rates on cash flows	(18)	6
Net decrease in cash, cash equivalents and restricted cash	(38,052)	(22,174)
Cash, cash equivalents and restricted cash—Beginning of period	317,314	536,768
Cash, cash equivalents and restricted cash—End of period	279,262	514,594
Reconciliation of cash, cash equivalents and restricted cash:
Cash and cash equivalents	275,633	510,965
Restricted cash	3,629	3,629
Total cash, cash equivalents and restricted cash	279,262	514,594
Supplemental disclosures of cash flow information:
Interest paid	488	2
Income taxes paid	44	64
Supplemental disclosure of non-cash investing and financing activities:
Stock-based compensation in capitalized costs	2,305	1,311
Change in unrealized loss on marketable securities	$ 149	$ 0