Unaudited Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Revenues:
Total revenue	$ 421,755	$ 310,788	$ 817,354	$ 592,153
Cost of revenues:
Total cost of revenues	78,931	62,877	151,869	117,611
Gross profit	342,824	247,911	665,485	474,542
Operating expenses:
Research and development	118,914	72,104	211,650	140,500
Sales and marketing	224,262	157,799	421,396	298,817
General and administrative	51,898	34,610	95,844	66,860
Total operating expenses	395,074	264,513	728,890	506,177
Loss from operations	(52,250)	(16,602)	(63,405)	(31,635)
Other expense:
Interest income	2,050	341	2,564	816
Interest expense	(949)	(7,179)	(1,898)	(16,578)
Other (expense) income	(3,091)	528	602	1,188
Total other (expense) income	(1,990)	(6,310)	1,268	(14,574)
Loss before income tax expense	(54,240)	(22,912)	(62,137)	(46,209)
Income tax expense	(2,121)	(1,660)	(3,565)	(1,522)
Net loss	$ (56,361)	$ (24,572)	$ (65,702)	$ (47,731)
Net loss per share, basic	$ (1.18)	$ (0.53)	$ (1.38)	$ (1.02)
Net loss per share, diluted	$ (1.18)	$ (0.53)	$ (1.38)	$ (1.02)
Weighted average common shares used in computing basic net loss per share	47,815	46,777	47,697	46,603
Weighted average common shares used in computing diluted net loss per share	47,815	46,777	47,697	46,603
Subscription [Member]
Revenues:
Total revenue	$ 412,401	$ 300,423	$ 797,356	$ 570,686
Cost of revenues:
Total cost of revenues	64,431	51,134	123,816	94,986
Professional Services and Other [Member]
Revenues:
Total revenue	9,354	10,365	19,998	21,467
Cost of revenues:
Total cost of revenues	$ 14,500	$ 11,743	$ 28,053	$ 22,625