XML 91 R78.htm IDEA: XBRL DOCUMENT v3.22.0.1
Debt (Cash Flow Hedges) (Details) - Interest Rate Swap Locks - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Derivative Instruments and Hedging Activities Disclosures [Line Items]      
Change in value of derivative instrument, tax   $ (22.5) $ (30.2)
Effective portion of interest rate locks amortized as an adjustment to Interest expense expected over the next twelve months $ 4.3    
Senior notes: March 2025      
Derivative Instruments and Hedging Activities Disclosures [Line Items]      
AOCI, cumulative loss, after tax $ 25.8 $ 30.4