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Long-Term Debt (Reclassification) (Details) - USD ($)
Nov. 07, 2017
Sep. 30, 2017
Mar. 31, 2017
Error Corrections and Prior Period Adjustments Restatement [Line Items]      
Current portion of long-term debt   $ 126,286,358 $ 65,978,785
Long-term debt   $ 592,497,785 $ 683,985,463
Repayment of debt $ 30,100,000    
Scheduled principal repayments 3,000,000    
Reclassification      
Error Corrections and Prior Period Adjustments Restatement [Line Items]      
Current portion of long-term debt (27,100,000)    
Long-term debt $ 27,100,000