Financial Instruments and Fair Value Disclosures (FV) (Details) - USD ($)	3 Months Ended		9 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Mar. 31, 2016
Derivative Instruments
Change in fair value	$ 24,381,306	$ 7,389,868	$ 26,539,650	$ 3,665,324
Realized loss on derivatives	(8,390,014)	(2,007,426)	(12,980,717)	(4,482,250)
Interest rate swaps | Derivatives not designated as hedging instruments
Derivative Instruments
Gain/(loss) on derivatives, net	15,991,292	5,382,442	13,558,933	(816,926)
Interest rate swaps | Derivatives not designated as hedging instruments | Unrealized gain/(loss) on derivatives
Derivative Instruments
Change in fair value	24,381,306	7,389,868	26,539,650	3,665,324
Interest rate swaps | Derivatives not designated as hedging instruments | Realized loss on derivatives
Derivative Instruments
Realized loss on derivatives	(8,390,014)	$ (2,007,426)	(12,980,717)	$ (4,482,250)
Interest rate swaps | Derivatives not designated as hedging instruments | Other non-current assets-Derivative instruments
Derivative Instruments
Derivative Asset	4,961,435		4,961,435
Interest rate swaps | Derivatives not designated as hedging instruments | Long-term liabilities-Derivatives instruments
Derivative Instruments
Liability derivatives	$ 69,750		$ 69,750		$ 21,647,965