Comprehensive Income (Loss) - Components of Other Comprehensive Income (Loss) and Income Tax Benefit Allocated (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Accumulated Other Comprehensive Income Loss [Line Items]
Other comprehensive income (loss) before tax amount	$ 2.2	$ (2.4)	$ (0.5)
Other comprehensive income (loss) tax amount	0.6	(0.7)	(0.2)
Other comprehensive income (loss) net of tax amount	1.6	(1.7)	(0.3)
Translation Adjustments
Accumulated Other Comprehensive Income Loss [Line Items]
Other comprehensive income (loss) before tax amount	(0.1)	0.1	0.1
Other comprehensive income (loss) net of tax amount	(0.1)	0.1	0.1
De-designation of interest rate collars
Accumulated Other Comprehensive Income Loss [Line Items]
Other comprehensive income (loss) before tax amount	2.3	1.5
Other comprehensive income (loss) tax amount	0.6	0.4
Other comprehensive income (loss) net of tax amount	$ 1.7	1.1
Change in Fair Value of Interest Rate Collars
Accumulated Other Comprehensive Income Loss [Line Items]
Other comprehensive income (loss) before tax amount		(4.0)	(0.6)
Other comprehensive income (loss) tax amount		(1.1)	(0.2)
Other comprehensive income (loss) net of tax amount		$ (2.9)	$ (0.4)