Investments in Real Estate- Gain on Sales of Real Estate (Details) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022 USD ($) property	Sep. 30, 2021 USD ($) property	Sep. 30, 2022 USD ($) property	Sep. 30, 2021 USD ($) property
Properties sold during the period
Number of properties | property	34	27	138	96
Net sales proceeds	$ 142.2	$ 31.9	$ 414.4	$ 123.5
Gain on sales of real estate	$ 42.6	$ 12.1	$ 93.4	$ 35.4