Leases - Schedule of Rent Expenses (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Leases [Abstract]
Operating lease expense	$ 675	$ 764	$ 2,194	$ 2,331
Variable and short-term lease expense	35	36	131	223
Rent expense	$ 710	$ 800	$ 2,325	$ 2,554