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)		713,423
Exercise of stock options	4,019	$ 1	4,018
Share‑based compensation	2,832		2,832
Foreign currency translation adjustments	0
Net loss	(4,589)				(4,589)
Ending balance (in shares) at Mar. 31, 2021		117,705,895
Ending balance at Mar. 31, 2021	813,276	$ 118	909,966	0	(96,808)
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)		211,200
Exercise of stock options	1,197		1,197
Vesting of restricted stock units (in shares)		22,191
Share‑based compensation	16,010		16,010
Foreign currency translation adjustments	(8,083)			(8,083)
Net loss	(25,629)				(25,629)
Ending balance (in shares) at Mar. 31, 2022		119,659,455
Ending balance at Mar. 31, 2022	$ 721,921	$ 119	$ 930,788	$ (15,949)	$ (193,037)