Condensed Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Other Comprehensive Loss [Member]	Accumulated Deficit [Member]
Beginning balance at Dec. 31, 2020	$ 763,293	$ 90	$ 1,167,367	$ 64	$ (404,228)
Beginning balance, shares at Dec. 31, 2020		89,906,835
Issuance of common stock upon exercise of stock options	2,055		2,055
Issuance of common stock upon exercise of stock options, shares		437,230
Vesting of restricted common stock	3		3
Vesting of restricted common stock, shares		84,489
Stock-based compensation expense	9,671		9,671
Unrealized loss on investments	(52)			(52)
Net loss	(42,184)				(42,184)
Ending balance at Mar. 31, 2021	732,786	$ 90	1,179,096	12	(446,412)
Ending balance, shares at Mar. 31, 2021		90,428,554
Beginning balance at Dec. 31, 2020	763,293	$ 90	1,167,367	64	(404,228)
Beginning balance, shares at Dec. 31, 2020		89,906,835
Net loss	(235,582)
Ending balance at Jun. 30, 2021	618,529	$ 92	1,258,312	(64)	(639,811)
Ending balance, shares at Jun. 30, 2021		92,552,645
Beginning balance at Mar. 31, 2021	732,786	$ 90	1,179,096	12	(446,412)
Beginning balance, shares at Mar. 31, 2021		90,428,554
Issuance of common stock upon exercise of stock options	1,123		1,123
Issuance of common stock upon exercise of stock options, shares		218,365
Vesting of restricted common stock, shares		22,239
Stock-based compensation expense	16,147		16,147
Shares issued in connection with acquisition of ZebiAI	61,948	$ 2	61,946
Shares issued in connection with acquisition, shares		1,883,487
Unrealized loss on investments	(76)			(76)
Net loss	(193,399)				(193,399)
Ending balance at Jun. 30, 2021	618,529	$ 92	1,258,312	(64)	(639,811)
Ending balance, shares at Jun. 30, 2021		92,552,645
Beginning balance at Dec. 31, 2021	897,808	$ 109	1,666,887	(1,088)	(768,100)
Beginning balance, shares at Dec. 31, 2021		108,210,318
Issuance of common stock upon exercise of stock options	883		883
Issuance of common stock upon exercise of stock options, shares		195,799
Vesting of restricted common stock, shares		27,233
Stock-based compensation expense	13,455		13,455
Unrealized loss on investments	(8,130)			(8,130)
Net loss	(62,046)				(62,046)
Ending balance at Mar. 31, 2022	841,970	$ 109	1,681,225	(9,218)	(830,146)
Ending balance, shares at Mar. 31, 2022		108,433,350
Beginning balance at Dec. 31, 2021	897,808	$ 109	1,666,887	(1,088)	(768,100)
Beginning balance, shares at Dec. 31, 2021		108,210,318
Net loss	(138,834)
Ending balance at Jun. 30, 2022	779,637	$ 109	1,698,368	(11,906)	(906,934)
Ending balance, shares at Jun. 30, 2022		108,810,478
Beginning balance at Mar. 31, 2022	841,970	$ 109	1,681,225	(9,218)	(830,146)
Beginning balance, shares at Mar. 31, 2022		108,433,350
Issuance of common stock upon exercise of stock options	859		859
Issuance of common stock upon exercise of stock options, shares		182,113
Issuance of common stock under ESPP	1,137		1,137
Issuance of common stock under ESPP, shares		79,859
Vesting of restricted common stock, shares		115,156
Stock-based compensation expense	15,147		15,147
Unrealized loss on investments	(2,688)			(2,688)
Net loss	(76,788)				(76,788)
Ending balance at Jun. 30, 2022	$ 779,637	$ 109	$ 1,698,368	$ (11,906)	$ (906,934)
Ending balance, shares at Jun. 30, 2022		108,810,478