Annual report pursuant to Section 13 and 15(d)

Stockholders' Equity - Components of AOCI and Related Tax Effect (Details)

v3.20.1
Stockholders' Equity - Components of AOCI and Related Tax Effect (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Other comprehensive income (loss) $ (13.1) $ 3.5 $ 7.3
Foreign currency translation adjustments      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Pre-tax Amount (2.2) (6.0) 7.2
Tax Impact 0.0 0.0 0.0
Other comprehensive income (loss) (2.2) (6.0) 7.2
Derivative gain (loss), net      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Pre-tax Amount (1.5) 2.3 (2.0)
Tax Impact 0.1 (0.6) 0.5
Other comprehensive income (loss) (1.4) 1.7 (1.5)
Pension and postretirement adjustments      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Pre-tax Amount (9.5) 8.5 2.2
Tax Impact 0.0 (0.7) (0.6)
Other comprehensive income (loss) (9.5) 7.8 1.6
Accumulated other comprehensive (loss) income      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Pre-tax Amount (13.2) 4.8 7.4
Tax Impact 0.1 (1.3) (0.1)
Other comprehensive income (loss) $ (13.1) $ 3.5 $ 7.3