Lease Assets and Lease Liabilities Lease Assets and Lease Liabilities (Lease Assets) (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Lessee, Lease, Description [Line Items]
Right-of-use assets and land rights, net	$ 860,538	$ 769,197
Assets Held For Sale
Lessee, Lease, Description [Line Items]
Right-of-use assets and land rights, net	28	300
Right-of use assets - operating leases (1)
Lessee, Lease, Description [Line Items]
Right-of-use assets and land rights, net	185,410	151,339
Land rights, net
Lessee, Lease, Description [Line Items]
Right-of-use assets and land rights, net	$ 675,128	$ 617,858