Rental Equipment- Revenue Earning Equipment Components (Details) - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020
Rental Equipment [Abstract]
Rental equipment	$ 3,747.8	$ 3,613.5
Less: Accumulated depreciation	(1,439.1)	(1,353.1)
Rental equipment, net	$ 2,308.7	$ 2,260.4