Accounts Receivable and Contract Assets, Net - Schedule of Changes in Sales Reserve (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Accounts Receivable Net [Abstract]
Balance, beginning of period	$ (175)	$ (200)
Additions	(200)	0
Balance, end of period	$ (375)	$ (200)