Leased Properties - Operating Lease Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Leases [Abstract]
Operating lease assets	$ 1,053,689	$ 1,038,877
Current operating lease liabilities	280,575	270,739
Noncurrent operating lease liabilities	789,175	789,294
Total operating lease liabilities	$ 1,069,750	$ 1,060,033
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]	Other current liabilities	Other current liabilities