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Long-term Debt (Details 1) (Term Loan [Member], USD $)
In Thousands, unless otherwise specified
Dec. 31, 2013
Term Loan [Member]
 
Summary of remaining principal payments under existing debt agreements  
Contractual Obligations, 2014 $ 6,655
Contractual Obligations, 2015 6,655
Contractual Obligations, 2016 6,673
Contractual Obligations, 2017 6,654
Contractual Obligations, 2018 168,121
Contractual Obligations, 2019 and Thereafter $ 0