Leases - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2020
Leases [Abstract]
Sublease income	$ (397)	$ (1,106)
Noncash impairment related to leases	$ 110	4,880
Decrease in operating lease right of use asset		$ 4,880