Leases - Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Leases
Operating cash flows from operating leases	$ 2,081	$ 834	$ 2,847	$ 1,632
Operating cash flows from finance leases	9	15	21	32
Investing cash flows from operating lease		942	1,452	1,788
Financing cash flows from finance leases	$ 109	$ 111	$ 219	$ 204