Real Estate (Key Information for Leases) (Details)	12 Months Ended
	Dec. 31, 2021 USD ($) Tenant	Dec. 31, 2020 USD ($)
Lease classification:
Operating | Tenant	3,229
Direct financing | Tenant	6
Weighted average remaining lease term (years)	10 years 7 months 6 days
Straight Line Rent	$ (249,450,000)	$ 30,473,000
Rent deferral, year ending December 31, 2020	4,758,000,000
Rent deferral lease amendments, prior rent originally		52,019,000
Deferred rent repaid	31,776,000	$ 3,259,000
Deferred rent to be repaid during year ended December 31, 2022	$ 14,526,000
Minimum
Lease classification:
Initial lease terms	10 years
Maximum
Lease classification:
Initial lease terms	20 years