Leases - Supplemental Cash Flows (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Leases [Abstract]
Operating cash flows for operating leases	$ 4,743	$ 5,173
Operating cash flows for finance leases	410	283
Financing cash flows for finance leases	2,751	2,144
ROU assets obtained in exchange for new operating lease liabilities	3,017	23,747
ROU assets obtained in exchange for new financing lease liabilities	$ 9,714	$ 229