Comprehensive (Loss) Income - Reclassifications from Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Accumulated Other Comprehensive Income Loss [Line Items]
Other expense (income)	$ (5.4)	$ (4.8)	$ (9.4)	$ (9.7)
Reclassifications, net of tax			0.3
Interest Rate Collars: Net Realized Loss
Accumulated Other Comprehensive Income Loss [Line Items]
Reclassifications, net of tax			0.3
Reclassifications from Accumulated Other Comprehensive Loss
Accumulated Other Comprehensive Income Loss [Line Items]
Reclassifications before tax	0.4		0.4
Income tax benefit	0.1		0.1
Reclassifications, net of tax	0.3		0.3
Reclassifications from Accumulated Other Comprehensive Loss | Interest Rate Collars: Net Realized Loss
Accumulated Other Comprehensive Income Loss [Line Items]
Other expense (income)	$ 0.4		$ 0.4