Accounts Receivable and Contract Assets, Net - Schedule of Contract Assets, Net (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Accounts Receivable Net [Abstract]
Contract asset amortized cost	$ 8,220	$ 2,560
Allowance for credit losses	(1,150)	(398)
Net contract asset	$ 7,070	$ 2,162