Summary of Significant Accounting Policies and Procedures (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Accounting Policies [Abstract]
Rental revenue reserves	$ 21.8	$ 0.3	$ 29.3	$ 1.2
Straight-line rent reserves	2.3	0.1	5.1	1.5
Total rental revenue reserves	$ 24.1	$ 0.4	$ 34.4	$ 2.7