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Long-Term Debt (Details) (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2014
Dec. 31, 2013
Reported Value Measurement
   
Carrying values and estimated fair values of outstanding debt    
Total debt $ 87,281 $ 98,000
Estimate of Fair Value Measurement | Fair Value, Inputs, Level 2
   
Carrying values and estimated fair values of outstanding debt    
Total debt $ 87,281 $ 98,000