Capital Structure - Schedule of Series A Convertible Preferred Stock (Details) - USD ($) $ / shares in Units, $ in Thousands	Sep. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Nov. 30, 2020
Class Of Stock [Line Items]
Preferred stock, shares outstanding	0
Series A Convertible Preferred Stock
Class Of Stock [Line Items]
Preferred stock, shares authorized	0		7,064,925
Preferred stock, shares issued	0		7,064,925
Preferred stock, shares outstanding	0	7,064,925	7,064,925	0
Original issue price			$ 7.93
Carrying value		$ 55,735	$ 55,738
Liquidation preference			$ 56,000