Leases - Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Leases [Abstract]
Financing cash flows from finance leases	$ 2,703	$ 0	$ 0
Interest on lease liabilities	0
Operating cash flows from operating leases	27,467
ROU assets obtained in exchange for Finance lease liabilities	1,384
ROU assets obtained in exchange for Operating lease liabilities	$ 3,242