Stockholders' Equity - Change in AOCI (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
BEGINNING BALANCE	$ 685.3	$ 560.7	$ 670.3	$ 493.5
ENDING BALANCE	716.4	628.2	716.4	628.2
Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
BEGINNING BALANCE	38.4	39.7	33.7	40.6
Unrealized (loss) gain in fair value of interest rate derivatives	(11.4)	4.7	(8.3)	2.1
Reclassifications of realized net losses to earnings	0.8	0.8	2.4	2.5
ENDING BALANCE	$ 27.8	$ 45.2	$ 27.8	$ 45.2