Accounts Receivable and Inventories - Summary of Accounts Receivable (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019
Accounts Receivable And Inventories Disclosure [Abstract]
Accounts receivable	$ 83,885		$ 86,052
Less: allowance for credit losses	(3,673)	$ (3,559)	(3,857)	$ (3,139)	$ (3,384)	$ (3,304)
Accounts receivable, net	$ 80,212		$ 82,195