Leases - Supplemental Cash Flow (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Leases [Abstract]
Operating cash flows from operating leases	$ 29,698	$ 35,728
Operating cash flows from financing leases	26	17
Financing cash flows from finance leases	504	282
Right-of-use assets obtained in exchange for lease obligations, operating leases	0	2,289
Right-of-use assets obtained in exchange for lease obligations, finance leases	$ 1,695	$ 0