Real Estate (Schedule of Future Minimum Lease Payments) (Details) $ in Thousands	Jun. 30, 2021 USD ($)
Operating Leases, Future Minimum Payments Due, Rolling Maturity [Abstract]
Operating Leases, Future Minimum Payments, Remainder of Fiscal Year	$ 142,729
Operating Leases, Future Minimum Payments Due, Next Twelve Months	284,690
Operating Leases, Future Minimum Payments, Due in Two Years	280,864
Operating Leases, Future Minimum Payments, Due in Three Years	275,808
Operating Leases, Future Minimum Payments, Due in Four Years	276,974
Operating Leases, Future Minimum Payments, Due in Five Years	281,289
Operating Leases, Future Minimum Payments, Due Thereafter	1,203,183
Operating Leases, Future Minimum Payments Due	$ 2,745,537