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Long Term Debt (Details) - USD ($)
$ in Thousands
Dec. 31, 2015
Dec. 31, 2014
Debt Instrument [Line Items]    
Total long-term debt $ 270,810 $ 241,435
Current portion of long-term debt 1,339 1,234
Long-term debt 269,471 240,201
Revolving Line of Credit [Member]    
Debt Instrument [Line Items]    
Total long-term debt 265,609 235,000
Mortgages Notes [Member]    
Debt Instrument [Line Items]    
Total long-term debt $ 5,201 $ 6,435