Leases - Additional information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Lease, Cost [Abstract]
Weighted average remaining lease term, operating leases	2 years 10 months 10 days
Weighted average remaining lease term, finance leases	1 year 3 months 29 days
Weighted average discount rate, operating leases	5.26%
Weighted average discount rate, finance leases	1.81%
Operating cash flows from operating leases	$ (2,431)
Operating cash flows from finance leases	(4)
Financing cash flows from finance leases	(130)
Assets held under finance lease	188	$ 300
Accumulated amortization		$ 100
Leased assets obtained in exchange for new operating lease liabilities	1,400
Disposal, leased assets	400
Maximum
Lease, Cost [Abstract]
Leased assets obtained in exchange for new finance lease liabilities	$ 100