CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Common	Additional Paid‑In Capital	Accumulated Other Comprehensive Loss	Accumulated Deficit
Beginning balance (in shares) at Dec. 31, 2020		116,992,472
Beginning balance at Dec. 31, 2020	$ 811,014	$ 117	$ 903,116	$ 0	$ (92,219)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Exercise of stock options (in shares)		1,257,440
Exercise of stock options	7,063	$ 1	7,062
Issuance of common stock under the employee stock purchase plan	0
Share‑based compensation	6,938		6,938
Foreign currency translation adjustments	0
Net loss	(21,056)				(21,056)
Ending balance (in shares) at Jun. 30, 2021		118,249,912
Ending balance at Jun. 30, 2021	803,959	$ 118	917,116	0	(113,275)
Beginning balance (in shares) at Mar. 31, 2021		117,705,895
Beginning balance at Mar. 31, 2021	813,276	$ 118	909,966	0	(96,808)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Exercise of stock options (in shares)		544,017
Exercise of stock options	3,044		3,044
Share‑based compensation	4,106		4,106
Foreign currency translation adjustments	0
Net loss	(16,467)				(16,467)
Ending balance (in shares) at Jun. 30, 2021		118,249,912
Ending balance at Jun. 30, 2021	803,959	$ 118	917,116	0	(113,275)
Beginning balance (in shares) at Dec. 31, 2021		119,426,064
Beginning balance at Dec. 31, 2021	738,426	$ 119	913,581	(7,866)	(167,408)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Exercise of stock options (in shares)		270,773
Exercise of stock options	1,543	$ 1	1,542
Vesting of restricted stock units (in shares)		482,760
Issuance of common stock under the employee stock purchase plan (in shares)		130,450
Issuance of common stock under the employee stock purchase plan	3,419		3,419
Share‑based compensation	69,034		69,034
Foreign currency translation adjustments	(29,708)			(29,708)
Net loss	(88,768)				(88,768)
Ending balance (in shares) at Jun. 30, 2022		120,310,047
Ending balance at Jun. 30, 2022	693,946	$ 120	987,576	(37,574)	(256,176)
Beginning balance (in shares) at Mar. 31, 2022		119,659,455
Beginning balance at Mar. 31, 2022	721,921	$ 119	930,788	(15,949)	(193,037)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Exercise of stock options (in shares)		59,573
Exercise of stock options	346	$ 1	345
Vesting of restricted stock units (in shares)		460,569
Issuance of common stock under the employee stock purchase plan (in shares)		130,450
Issuance of common stock under the employee stock purchase plan	3,419		3,419
Share‑based compensation	53,024		53,024
Foreign currency translation adjustments	(21,625)			(21,625)
Net loss	(63,139)				(63,139)
Ending balance (in shares) at Jun. 30, 2022		120,310,047
Ending balance at Jun. 30, 2022	$ 693,946	$ 120	$ 987,576	$ (37,574)	$ (256,176)