Annual report pursuant to Section 13 and 15(d)

Fair Value Measurements - Derivative Assets and Liabilities Measured at Fair Value (Detail)

v3.10.0.1
Fair Value Measurements - Derivative Assets and Liabilities Measured at Fair Value (Detail) - USD ($)
$ in Millions
Dec. 31, 2018
Dec. 31, 2017
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Fair value derivative assets $ 3.3 $ 5.8
Fair value derivative liabilities 1.7 6.6
Foreign exchange currency contracts [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Fair value derivative assets 3.3 5.8
Fair value derivative liabilities 1.7 6.6
Significant Other Observable Inputs (Level 2) [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Fair value measurements, assets total 3.3 5.8
Fair value measurements, liabilities total 1.7 6.6
Significant Other Observable Inputs (Level 2) [Member] | Derivatives designated as hedging instruments [Member] | Foreign exchange currency contracts relating to inventory and intercompany management fee hedges [Member] | Prepaid expenses and other current assets [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Fair value derivative assets 0.5 2.9
Significant Other Observable Inputs (Level 2) [Member] | Derivatives designated as hedging instruments [Member] | Foreign exchange currency contracts relating to inventory and intercompany management fee hedges [Member] | Other current liabilities [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Fair value derivative liabilities 0.7 4.0
Significant Other Observable Inputs (Level 2) [Member] | Derivatives not designated as hedging instruments [Member] | Foreign exchange currency contracts [Member] | Prepaid expenses and other current assets [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Fair value derivative assets 2.8 2.9
Significant Other Observable Inputs (Level 2) [Member] | Derivatives not designated as hedging instruments [Member] | Foreign exchange currency contracts [Member] | Other current liabilities [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Fair value derivative liabilities $ 1.0 $ 2.6