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Balance Sheet Components (Schedule Of Accounts Receivable And Related Allowances) (Details) (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2013
Dec. 31, 2012
Balance Sheet Related Disclosures [Abstract]    
Gross accounts receivable $ 307,591 $ 276,084
Allowance for doubtful accounts (1,256) (1,256)
Allowance for sales returns (16,122) (17,031)
Allowance for price protection (1,730) (1,783)
Total allowances (19,108) (20,070)
Accounts receivable, net $ 288,483 $ 256,014