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Accounts Receivable, Net (Detail) (USD $)
In Thousands, unless otherwise specified
Jul. 04, 2014
Jan. 03, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Allowance for doubtful accounts $ (2,927) $ (2,771)
Total accounts receivable, net 85,795 76,980
Billed accounts receivable
    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Accounts receivable 57,500 52,674
Unbilled accounts receivable
    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Accounts receivable $ 31,222 $ 27,077