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Equity-Based Compensation - Summary of Performance Stock Unit Activity (Detail) - Performance Stock Units [Member]
6 Months Ended
Jul. 04, 2015
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Shares, Outstanding at beginning of year 10,345
Shares, Granted 283
Shares, Forfeited (1,272)
Shares, Outstanding at end of period 9,356