Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements - Schedule of Instruments Not Carried at Fair Value (Details)

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Fair Value Measurements - Schedule of Instruments Not Carried at Fair Value (Details) (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2014
Dec. 31, 2013
Long term debt, including current portion:    
Carrying value $ 1,624,741 $ 1,606,793
Fair value $ 1,672,256 [1] $ 1,656,797 [1]
[1] (a)T he fair value is based on valuations from third party financial institutions and is classified as Level 2 in the hierarchy.