Leases - Lease Cost and Other Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Leases [Abstract]
Operating lease cost	$ 600	$ 1,427
Short-term lease cost	320	477
Total lease cost	920	1,904
Cash paid for amounts included in the measurement of lease liabilities
Operating cash flows from operating leases	$ (600)	$ (1,427)
Weighted-average remaining lease term (years) for operating leases	3 years 9 months 18 days	4 years 2 months 12 days
Weighted-average discount rate (2) operating leases	7.30%	8.00%