Leases - Cash Flow Information (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Lessee Disclosure [Abstract]
Cash paid for operating leases included in operating activities	$ 69,518	$ 64,445
Cash paid for finance leases included in operating activities	388	452
Cash paid for finance leases included in financing activities	1,538	3,746
Operating lease right-of-use assets obtained in exchange for lease obligations	48,959	66,526
Noncash lease expense	$ 70,600	$ 64,700