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Long-Term Debt (Details) (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2014
Dec. 31, 2013
Long Term Debt [Line Items]    
Obligations under borrowing arrangements $ 100,477us-gaap_LongTermDebt $ 77,817us-gaap_LongTermDebt
Less: Current portion of long-term debt and other current borrowings 54,973us-gaap_LongTermDebtCurrent 29,720us-gaap_LongTermDebtCurrent
Long-term debt $ 45,504us-gaap_LongTermDebtNoncurrent $ 48,097us-gaap_LongTermDebtNoncurrent