Leases - Leases, Liability, Maturity (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Jan. 01, 2019
Lessee, Operating Lease, Liability, Payment, Due [Abstract]
2020	$ 3,227
2021	3,099
2022	3,094
2023	3,043
2023	2,944
Thereafter	8,257
Total future minimum lease payments	23,664
Less imputed interest	(5,035)
Total	$ 18,629	$ 20,800