Long-Term Debt - Mortgage Facilities (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2025	Dec. 31, 2024
Debt Instrument [Line Items]
Outstanding debt	$ 1,771.5	$ 1,852.0
Revolving Mortgage Facility
Debt Instrument [Line Items]
Maximum credit available	500.0
Current borrowing capacity	$ 360.9
Line of credit basis spread on variable rate, increase (decrease) (as a percent)	1.68%
Outstanding debt	$ 90.0
Mortgage facilities
Debt Instrument [Line Items]
Outstanding debt	$ 428.4	$ 474.8