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Stockholders' Equity - Change in AOCI (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2025
Sep. 30, 2024
Sep. 30, 2025
Sep. 30, 2024
AOCI Attributable to Parent, Net of Tax [Roll Forward]        
Accumulated gain at beginning of period $ 664.5 $ 685.3 $ 705.3 $ 670.3
Accumulated gain at end of period 678.6 716.4 678.6 716.4
Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent        
AOCI Attributable to Parent, Net of Tax [Roll Forward]        
Accumulated gain at beginning of period 25.6 38.4 35.0 33.7
Unrealized loss in fair value of interest rate derivatives (2.2) (11.4) (12.6) (8.3)
Reclassifications of realized net losses to earnings 0.0 0.8 1.0 2.4
Accumulated gain at end of period $ 23.4 $ 27.8 $ 23.4 $ 27.8