Annual report pursuant to Section 13 and 15(d)

Valuation And Qualifying Accounts (Detail)

v2.4.0.6
Valuation And Qualifying Accounts (Detail) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Allowance for chargebacks [Member]
      
Valuation and Qualifying Accounts Disclosure [Line Items]      
BALANCE AT BEGINNING OF PERIOD $ 2,340 $ 3,027 $ 1,943
CHARGED TO REVENUE COSTS AND EXPENSES 1,357 1,463 2,993
DEDUCTIONS AND WRITE-OFFS (896) (2,150) (1,909)
BALANCE AT END OF PERIOD 2,801 2,340 3,027
Allowance for doubtful accounts [Member]
      
Valuation and Qualifying Accounts Disclosure [Line Items]      
BALANCE AT BEGINNING OF PERIOD 10,331 5,645 4,328
CHARGED TO REVENUE COSTS AND EXPENSES 186 5,560 1,782
DEDUCTIONS AND WRITE-OFFS (3,350) (874) (465)
BALANCE AT END OF PERIOD 7,167 10,331 5,645
Reserve for sales returns and allowances [Member]
      
Valuation and Qualifying Accounts Disclosure [Line Items]      
BALANCE AT BEGINNING OF PERIOD 7,752 11,025 8,090
CHARGED TO REVENUE COSTS AND EXPENSES (431) (1,141) 1,437
DEDUCTIONS AND WRITE-OFFS (367) (2,132) 1,498
BALANCE AT END OF PERIOD 6,954 7,752 11,025
Reserve for shrinkage [Member]
      
Valuation and Qualifying Accounts Disclosure [Line Items]      
BALANCE AT BEGINNING OF PERIOD 300 200 200
CHARGED TO REVENUE COSTS AND EXPENSES 1,300 1,100 1,100
DEDUCTIONS AND WRITE-OFFS (1,300) (1,000) (1,100)
BALANCE AT END OF PERIOD 300 300 200
Reserve for obsolescence [Member]
      
Valuation and Qualifying Accounts Disclosure [Line Items]      
BALANCE AT BEGINNING OF PERIOD 11,959 3,438 3,455
CHARGED TO REVENUE COSTS AND EXPENSES 931 9,971 0
DEDUCTIONS AND WRITE-OFFS (4,041) (1,450) (17)
BALANCE AT END OF PERIOD $ 8,849 $ 11,959 $ 3,438