Annual report pursuant to Section 13 and 15(d)

Financial Instruments - Schedule of Estimated Fair Value (Details)

v3.10.0.1
Financial Instruments - Schedule of Estimated Fair Value (Details) - USD ($)
$ in Millions
Dec. 31, 2018
Dec. 31, 2017
Level 1    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Financial Assets $ 1.1  
Financial Liabilities 0.0 $ (1.1)
Level 1 | Foreign exchange contracts    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Financial Assets 1.1  
Level 1 | Foreign exchange contracts | Designated as hedging instruments    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Financial Liabilities   (0.8)
Level 1 | Foreign exchange contracts | Not Designated as Hedging Instrument    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Financial Liabilities   (0.3)
Level 1 | Total Debt    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Financial Liabilities 0.0  
Level 1 | Total Debt | Not Designated as Hedging Instrument    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Financial Liabilities   0.0
Level 2    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Financial Assets 0.0  
Financial Liabilities (99.3) (85.0)
Level 2 | Foreign exchange contracts    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Financial Assets 0.0  
Level 2 | Foreign exchange contracts | Designated as hedging instruments    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Financial Liabilities   0.0
Level 2 | Foreign exchange contracts | Not Designated as Hedging Instrument    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Financial Liabilities   0.0
Level 2 | Total Debt    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Financial Liabilities (99.3)  
Level 2 | Total Debt | Not Designated as Hedging Instrument    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Financial Liabilities   (85.0)
Level 3    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Financial Assets 0.0  
Financial Liabilities 0.0 0.0
Level 3 | Foreign exchange contracts    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Financial Assets 0.0  
Level 3 | Foreign exchange contracts | Designated as hedging instruments    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Financial Liabilities   0.0
Level 3 | Foreign exchange contracts | Not Designated as Hedging Instrument    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Financial Liabilities   0.0
Level 3 | Total Debt    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Financial Liabilities 0.0  
Level 3 | Total Debt | Not Designated as Hedging Instrument    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Financial Liabilities   0.0
Carrying amount    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Financial Assets 1.1  
Financial Liabilities (99.3) (86.1)
Carrying amount | Foreign exchange contracts    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Financial Assets 1.1  
Carrying amount | Foreign exchange contracts | Designated as hedging instruments    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Financial Liabilities   (0.8)
Carrying amount | Foreign exchange contracts | Not Designated as Hedging Instrument    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Financial Liabilities   (0.3)
Carrying amount | Total Debt    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Financial Liabilities (99.3)  
Carrying amount | Total Debt | Not Designated as Hedging Instrument    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Financial Liabilities   (85.0)
Estimated fair value    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Financial Assets 1.1  
Financial Liabilities (99.3) (86.1)
Estimated fair value | Foreign exchange contracts    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Financial Assets 1.1  
Estimated fair value | Foreign exchange contracts | Designated as hedging instruments    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Financial Liabilities   (0.8)
Estimated fair value | Foreign exchange contracts | Not Designated as Hedging Instrument    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Financial Liabilities   (0.3)
Estimated fair value | Total Debt    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Financial Liabilities $ (99.3)  
Estimated fair value | Total Debt | Not Designated as Hedging Instrument    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Financial Liabilities   $ (85.0)