Subsequent Events (Details) - USD ($) $ in Millions		1 Months Ended	3 Months Ended		6 Months Ended
		Jul. 31, 2023	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Subsequent Event [Line Items]
Stock repurchased during period	[1]		$ 52.2	$ 225.1	$ 75.3	$ 338.1
Subsequent Event | Repurchase Letter Agreement | Preferred Stock
Subsequent Event [Line Items]
Stock repurchased during period (in shares)		400,000
Stock repurchased during period		$ 805.4
Dividends payable		$ 0.9

[1] See Note 7 for additional information.