Leases - Leases Cash Flow (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Leases [Abstract]
Operating cash flows from operating leases	$ 18,664	$ 15,775
Operating cash flows from finance leases	749	65
Financing cash flows from finance leases	344	341
Right-of-use asset obtained in exchange for operating leases	$ 17,197	$ 526