Commitments and Contingencies - Additional Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Commitments And Contingencies Disclosure [Line Items]
Contingent milestone payments	$ 2,400
Additional royalty payments rate	3.00%
Supply Agreement
Commitments And Contingencies Disclosure [Line Items]
Purchase obligation	$ 2,388
Purchases under supply agreements	$ 1,936	$ 9,600