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Bank Debt, Long-Term Debt and Convertible Notes (Details 1) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2013
Debt [Line Items]  
2014 $ 467
2015 430
2016 175
2017 0
2018 0
2019 and beyond 660,000
Future Principal Repayments Of Long Term Debt Including Capital Lease Obligations $ 661,072