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Schedule II - Valuation And Qualifying Accounts And Reserves (Details) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Allowance For Doubtful Accounts [Member]
      
Movement in Valuation Allowances and Reserves [Roll Forward]      
Balance at Beginning of Year $ 805 $ 924 $ 1,195
Additions, Charged to Costs and Expenses 0 0 0
Additions, Charged to Other Accounts 0 0 0
(Deductions) (154) (119) (271)
Balance at End of Year 651 805 924
Deferred Income Tax Valuation Allowance [Member]
      
Movement in Valuation Allowances and Reserves [Roll Forward]      
Balance at Beginning of Year 6,879 8,585 9,008
Additions, Charged to Costs and Expenses (485) (1,706) (423)
Additions, Charged to Other Accounts 8,344 0 0
(Deductions) 0 0 0
Balance at End of Year $ 14,738 $ 6,879 $ 8,585