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Commitments, Contingencies and Legal Matters (Tables)
6 Months Ended
Jul. 01, 2012
Commitments, Contingencies and Legal Matters [Abstract]  
Summary of changes in product warranties
         
    Accrued Warranties  
    (In thousands)  

Balance as of December 31, 2011

  $ 6,334  

Accruals for warranties issued during the period

    868  

Adjustments to pre-existing accruals (including changes in estimates)

    (470

Warranty liabilities assumed in SandForce acquisition

    426  

Settlements made during the period (in cash or in kind)

    (1,059
   

 

 

 

Balance as of July 1, 2012

  $ 6,099