Commitments and Contingencies - Maturities of Lease Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Operating Leases
2020	$ 6,574
2021	5,824
2022	5,483
2023	5,496
2024	4,995
Thereafter	6,297
Total future minimum lease payments	34,669
Less: imputed interest	(4,217)
Operating lease liabilities	30,452
Finance Leases
2020	307
2021	34
2022	2
2023	0
2024	0
Thereafter	0
Total future minimum lease payments	343
Less: imputed interest	(35)
Finance lease liabilities	308
Accrued liabilities	276
Operating lease liability - current	5,773	$ 0
Operating lease liability - long-term	24,679	$ 0
Other long-term liabilities	$ 32