XML 106 R132.htm IDEA: XBRL DOCUMENT v2.4.0.6
Valuation and Qualifying Accounts (Details) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Allowance for Doubtful Accounts [Member]
      
Valuation and Qualifying Accounts Disclosure [Line Items]      
Balance, beginning of year $ 2,861 $ 3,118 $ 2,888
Provision 71 149 1,269
Write-offs, recoveries and discounts allowed (91) (385) (993)
Other 17 (21) (46)
Balance, end of year 2,858 2,861 3,118
Allowance for Sales Discounts and Deductions [Member]
      
Valuation and Qualifying Accounts Disclosure [Line Items]      
Balance, beginning of year 2,831 2,845 2,789
Provision 3,661 4,080 3,593
Write-offs, recoveries and discounts allowed (4,173) (4,070) (3,517)
Other (17) (24) (20)
Balance, end of year $ 2,302 $ 2,831 $ 2,845