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Subsequent Event (Details) (USD $)
Jul. 01, 2014
Sep. 01, 2012
Aug. 01, 2012
Subsequent Event [Line Items]      
Business Acquisition, Percentage of Voting Interests Acquired 100.00% 100.00% 100.00%
Prudential Facility [Member]
     
Subsequent Event [Line Items]      
Long-term Debt $ 120,000,000    
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate 3.19%    
Knox Acquisition [Member]
     
Subsequent Event [Line Items]      
Total Purchase Price 132,800,000    
RODENSA and GSB/Northam Acquisition [Member]
     
Subsequent Event [Line Items]      
Total Purchase Price $ 12,800,000