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Benefit Plans - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified
9 Months Ended 3 Months Ended 9 Months Ended 12 Months Ended
Sep. 29, 2013
Pension_Plan
Dec. 29, 2013
Scenario, Forecast [Member]
Sep. 29, 2013
Minimum [Member]
Sep. 29, 2013
Maximum [Member]
Sep. 29, 2013
401(k) Savings Plan [Member]
Sep. 30, 2012
401(k) Savings Plan [Member]
Dec. 30, 2012
401(k) Savings Plan [Member]
Pension Plans, Postretirement and Other Employee Benefits [Line Items]              
Entity contribution in its owned sponsored pension plan during the period $ 0.1            
Number of sponsored pension plans 2            
Anticipated employer contributions to pension plan for the remainder of fiscal year     2 3      
Approximate non-cash charge due to lump sum distribution   12          
Company discretionary matching contribution percentage           5.00% 5.00%
Defined contribution plan matching contribution percentage accrued         5.00% 5.00% 5.00%
Cost recognized         5.8 6.4  
Multi-employer pension plan exit charge, liability recorded 9.4            
Multi-employer pension plan exit annual payment amount $ 1