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Cash Flow Information - Narrative (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Supplemental Cash Flow Elements [Abstract]      
Cash and cash equivalents $ 87.3 $ 23.8  
Restricted cash, included in other assets   4.3  
Decrease (increase) in accrual for capital expenditures 1.7 4.1 $ (0.5)
Cash paid for interest 92.5 125.3 128.6
Cash paid for taxes, net of refunds $ 64.0 $ 48.3 $ 40.8