Comprehensive (Loss) Income - Reclassifications from Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Accumulated Other Comprehensive Income Loss [Line Items]
Net realized loss	$ (17.3)	$ (20.7)	$ (20.8)
Reclassifications from Accumulated Other Comprehensive Loss
Accumulated Other Comprehensive Income Loss [Line Items]
Reclassifications before tax	0.7	2.3	1.5
Income tax benefit	0.2	0.6	0.4
Reclassifications, net of tax	0.5	1.7	1.1
Reclassifications from Accumulated Other Comprehensive Loss | Interest Rate Collars: Net Realized Loss
Accumulated Other Comprehensive Income Loss [Line Items]
Net realized loss	$ 0.7	$ 2.3	$ 1.5