Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies and Nature of Operations - Allowance for Sales Returns and Allowance for Doubtful Accounts (Detail)

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Summary of Significant Accounting Policies and Nature of Operations - Allowance for Sales Returns and Allowance for Doubtful Accounts (Detail) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 28, 2013
Dec. 29, 2012
Dec. 31, 2011
Allowance for sales returns [Member]
      
Valuation and Qualifying Accounts Disclosure [Line Items]      
Balance at Beginning of Period $ 1,364 $ 1,726 $ 1,316
Charged to Revenue, Cost or Expenses 24,147 30,058 30,527
Deductions (24,618) (30,420) (30,117)
Balance at End of Period 893 1,364 1,726
Allowance for doubtful accounts [Member]
      
Valuation and Qualifying Accounts Disclosure [Line Items]      
Balance at Beginning of Period 221 183 372
Charged to Revenue, Cost or Expenses 181 247 87
Deductions (189) (209) (276)
Balance at End of Period $ 213 $ 221 $ 183