401(k) Savings Plan - 401(k) Plan Costs Recognized (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Defined Contribution Plan Disclosure [Line Items]
Matching contributions	$ 1,706	$ 1,397
Cost of revenue
Defined Contribution Plan Disclosure [Line Items]
Matching contributions	344	313
Sales and marketing
Defined Contribution Plan Disclosure [Line Items]
Matching contributions	626	438
Research and development
Defined Contribution Plan Disclosure [Line Items]
Matching contributions	518	463
General and administrative
Defined Contribution Plan Disclosure [Line Items]
Matching contributions	$ 218	$ 183