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Summary of Significant Accounting Policies and Procedures (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Accounting Policies [Abstract]        
Rental revenue reserves $ 7.5 $ 6.4 $ 15.8 $ 7.4
Straight-line rent reserves 0.7 2.1 1.2 2.8
Total rental revenue reserves $ 8.2 $ 8.5 $ 17.0 $ 10.2