Leases - Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Leases
Operating cash flows from operating leases	$ 52,220	$ 54,611
Operating cash flows from finance leases	9,932	16,326
Financing cash flows from finance leases	49,873	47,301
Operating leases (1)	$ 799,261	$ 41,665