Leased Properties - Operating Lease Costs and Supplemental Cash Flow (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Leases [Abstract]
Operating lease costs	$ 336,228	$ 313,315	$ 310,028
Cash paid for amounts included in the measurement of operating lease liabilities	340,243	323,336	311,170
Operating lease assets obtained in exchange for new operating lease liabilities	$ 358,393	$ 302,114	$ 330,103