Accounts Receivable and Contract Assets, Net - Schedule of Changes in Allowance for Credit Losses for Contract Assets (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2020
Allowance for Credit Loss [Abstract]
Balance, beginning of period	$ (25)
Provision for expected credit losses	(3)	$ (28)
Balance, end of period	$ (28)	$ (28)