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Summary of Significant Accounting Policies and Recent Accounting Pronouncements (Tables)
12 Months Ended
Dec. 31, 2020
Accounting Policies [Abstract]  
Revenue Recognition Leases, Operating [Policy Text Block] We anticipate property revenue from existing leases as follows:
(in millions)
Year ended December 31,Operating Leases
2021$645.9 
202225.1 
20234.0 
20243.1 
20252.5 
Thereafter6.0 
Total$686.6 
Expected Useful Lives Of Depreciable Property
Depreciation and amortization is computed over the expected useful lives of depreciable property on a straight-line basis with lives generally as follows:
 Estimated
Useful  Life
Buildings and improvements5-35 years
Furniture, fixtures, equipment and other3-20 years
Intangible assets/liabilities (in-place leases and below market leases)underlying lease term