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- Fair Value Measurements (Detail) - Fair value, measurements, recurring - USD ($)
$ in Thousands
Dec. 31, 2016
Dec. 31, 2015
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Non-qualified deferred compensation assets $ 49,330 $ 48,238
Foreign exchange contracts, net 298 2,767
Interest rate swap contracts   186
Total assets at fair value 49,628 51,191
Commodity contracts, net   (354)
Non-qualified deferred compensation liabilities (49,330) (48,238)
Total liabilities at fair value (49,330) (48,592)
Level 1    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Non-qualified deferred compensation assets 49,330 48,238
Foreign exchange contracts, net 0 0
Interest rate swap contracts   0
Total assets at fair value 49,330 48,238
Commodity contracts, net   0
Non-qualified deferred compensation liabilities (49,330) (48,238)
Total liabilities at fair value (49,330) (48,238)
Level 2    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Non-qualified deferred compensation assets 0 0
Foreign exchange contracts, net 298 2,767
Interest rate swap contracts   186
Total assets at fair value 298 2,953
Commodity contracts, net   (354)
Non-qualified deferred compensation liabilities 0 0
Total liabilities at fair value 0 (354)
Level 3    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Non-qualified deferred compensation assets 0 0
Foreign exchange contracts, net 0 0
Interest rate swap contracts   0
Total assets at fair value 0 0
Commodity contracts, net   0
Non-qualified deferred compensation liabilities 0 0
Total liabilities at fair value $ 0 $ 0