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Long-Term Debt and Credit Facility (Maturities) (Details) - USD ($)
$ in Thousands
Dec. 31, 2015
Dec. 31, 2014
Term Loan    
2016 $ 32,291  
2017 7,143  
2018 11,112  
Long-term debt 50,546 $ 44,041
Revolving Credit Facility [Member]    
Term Loan    
2016 25,148  
2017 0  
2018 0  
Long-term debt 25,148 8,500
Term loan [Member]    
Term Loan    
2016 7,143  
2017 7,143  
2018 11,112  
Long-term debt $ 25,398 $ 35,541