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SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS (Details) (USD $)
 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Valuation and Qualifying Accounts Disclosure [Line Items]      
Valuation allowance adjustment $ 0 $ 500,000 $ (4,200,000)
Allowance For Doubtful Accounts And Sales Returns And Allowances
      
Valuation and Qualifying Accounts Disclosure [Line Items]      
Balance at Beginning of Period 7,221,000 6,978,000 7,322,000
Charged to Costs and Expenses 601,000 1,315,000 1,118,000
Charged to Other Accounts 0 0 [1] 0 [1]
Deductions (1,628,000) (1,072,000) (1,462,000)
Balance at End of Period 6,194,000 7,221,000 6,978,000
Deferred Tax Asset Valuation Allowance
      
Valuation and Qualifying Accounts Disclosure [Line Items]      
Balance at Beginning of Period 14,243,000 32,304,000 36,634,000
Charged to Costs and Expenses (4,469,000) (16,979,000) 127,000
Charged to Other Accounts 0 477,000 [1] (4,238,000) [1]
Deductions (714,000) (1,559,000) (219,000)
Balance at End of Period $ 9,060,000 $ 14,243,000 $ 32,304,000
[1] In 2012, $0.5 million of deferred tax liability was reclassified to the valuation allowance with no impact to the consolidated statement of operations. In 2011, $4.2 million of the valuation allowance was reclassified to long-term taxes payable with no impact to the consolidated statements of operations. There were no such reclassification adjustments made during 2013.