Comprehensive Loss - Components of Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
AOCI Attributable to Parent, Net of Tax
Beginning Balance	$ 226.0
Ending Balance	252.1
Foreign Currency Translation Adjustments
AOCI Attributable to Parent, Net of Tax
Beginning Balance	(1.8)	$ (2.3)
Other comprehensive loss before reclassification	(0.2)	(0.7)
Ending Balance	(2.0)	(3.0)
Interest Rate Collars
AOCI Attributable to Parent, Net of Tax
Beginning Balance		(0.5)
Amounts reclassified from accumulated other comprehensive loss		0.5
Accumulated Other Comprehensive Loss
AOCI Attributable to Parent, Net of Tax
Beginning Balance	(1.8)	(2.8)
Other comprehensive loss before reclassification	(0.2)	(0.7)
Amounts reclassified from accumulated other comprehensive loss		0.5
Ending Balance	$ (2.0)	$ (3.0)