Segment Reporting - Properties (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Segment Reporting
Properties, net	$ 4,311.5	$ 4,386.5
Maximum Percentage of Properties Accounted for by Single Country	10.00%
United States and its territories
Segment Reporting
Properties, net	$ 2,294.1	2,457.1
Canada
Segment Reporting
Properties, net	1,114.6	974.8
United Kingdom
Segment Reporting
Properties, net	383.2	398.9
Other foreign countries
Segment Reporting
Properties, net	$ 519.6	$ 555.7