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Derivative Instruments - Offsetting Assets (Detail) - USD ($)
$ in Thousands
Jul. 05, 2015
Dec. 31, 2014
Derivative Instruments and Hedging Activities Disclosure [Abstract]    
Gross amounts of recognized assets $ 153 $ 187
Gross amounts offset 0 (74)
Net amount of assets presented 153 113
Gross amounts of recognized liabilities 412 149
Gross amounts offset (161) (52)
Net amount of liabilities presented $ 251 $ 97