Financial Instruments and Fair Value Disclosures (FV) (Details) - USD ($)	12 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2015
Derivative Instruments
Change in fair value	$ 27,491,333	$ (8,917,503)	$ 1,331,954
Realized loss on derivatives	(13,797,478)	(6,858,126)	(5,291,157)
Gain/(loss) on derivatives, net	27,491,333	(8,917,503)	1,331,954
Asset Impairment Charges	0	0	1,431,818
Derivatives not designated as hedging instruments | Gain/(loss) on derivatives, net
Derivative Instruments
Gain/(loss) on derivatives, net	13,693,855	(15,775,629)	(3,959,203)
Interest rate swaps | Derivatives not designated as hedging instruments | Gain/(loss) on derivatives, net
Derivative Instruments
Change in fair value	27,491,333	(8,917,503)	1,331,954
Realized loss on derivatives	(13,797,478)	(6,858,126)	$ (5,291,157)
Interest rate swaps | Derivatives not designated as hedging instruments | Other non-current assets-Derivative instruments
Derivative Instruments
Derivative Asset	$ 5,843,368
Interest rate swaps | Derivatives not designated as hedging instruments | Long-term liabilities-Derivatives instruments
Derivative Instruments
Liability derivatives		$ 21,647,965