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Fair Value of Assets and Liabilities (Fair Value of Financial Assets and Liabilities Measured on Recurring Basis) (Detail) - USD ($)
$ in Thousands
Mar. 31, 2018
Dec. 30, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair value of assets and liabilities $ (15,861) $ (20,968)
Fair Value, Measurements, Recurring    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair value of assets and liabilities (15,861) (20,968)
Deferred compensation plan liability 45,082 52,758
Net Effect Of Financial Asset Less Financial Liability (60,943) (73,726)
Fair Value, Measurements, Recurring | Quoted Prices In Active Markets for Identical Assets (Level 1)    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair value of assets and liabilities 0 0
Deferred compensation plan liability 0 0
Net Effect Of Financial Asset Less Financial Liability 0 0
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2)    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair value of assets and liabilities (15,861) (20,968)
Deferred compensation plan liability 45,082 52,758
Net Effect Of Financial Asset Less Financial Liability (60,943) (73,726)
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3)    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair value of assets and liabilities 0 0
Deferred compensation plan liability 0 0
Net Effect Of Financial Asset Less Financial Liability 0 0
Fair Value, Measurements, Recurring | Foreign exchange derivative contracts    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total derivative assets 2,171 1,600
Total derivative liabilities 18,032 22,568
Fair Value, Measurements, Recurring | Foreign exchange derivative contracts | Quoted Prices In Active Markets for Identical Assets (Level 1)    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total derivative assets 0 0
Total derivative liabilities 0 0
Fair Value, Measurements, Recurring | Foreign exchange derivative contracts | Significant Other Observable Inputs (Level 2)    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total derivative assets 2,171 1,600
Total derivative liabilities 18,032 22,568
Fair Value, Measurements, Recurring | Foreign exchange derivative contracts | Significant Unobservable Inputs (Level 3)    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total derivative assets 0 0
Total derivative liabilities $ 0 $ 0