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Fair Value Measurements - Reconciliation of Recurring Financial Liability Related to Interest Rate Swaps (Detail) (Interest Rate Swap [Member], USD $)
In Thousands, unless otherwise specified
3 Months Ended 12 Months Ended
Mar. 30, 2014
Dec. 31, 2013
Interest Rate Swap [Member]
   
Derivatives, Fair Value [Line Items]    
Beginning balance $ (996) $ (1,607)
Total gains/(losses) for the period:    
Included in earnings 118 322
Included in other comprehensive income (54) 289
Ending balance $ (932) $ (996)