Summary of Significant Accounting Policies and Procedures and New Accounting Standards - Reserves of Rental Revenue (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Accounting Policies [Abstract]
Rental revenue reserves	$ 10.2	$ 44.1	$ 1.4
Straight-line rent reserves	4.5	8.4	1.5
Total rental revenue reserves	$ 14.7	$ 52.5	$ 2.9