Financial Instruments and Fair Value Disclosures (FV) (Details) - USD ($)	12 Months Ended
Mar. 31, 2019	Mar. 31, 2018	Mar. 31, 2017
Derivative Instruments
Change in fair value	$ (7,816,401)	$ 8,421,531	$ 27,491,333
Realized gain/(loss) on derivatives	3,788,123	(1,328,886)	(13,797,478)
Derivatives not designated as hedging instruments \| Gain/(loss) on derivatives, net
Derivative Instruments
Gain/(loss) on derivatives, net	(4,028,278)	7,092,645	13,693,855
Interest rate swaps \| Derivatives not designated as hedging instruments \| Gain/(loss) on derivatives, net
Derivative Instruments
Change in fair value	(7,816,401)	8,421,531	27,491,333
Realized gain/(loss) on derivatives	3,788,123	(1,328,886)	$ (13,797,478)
Interest rate swaps \| Derivatives not designated as hedging instruments \| Other non-current assets-Derivative instruments
Derivative Instruments
Derivative Asset	$ 6,448,498	$ 14,264,899

Amount of gain (loss) included in earnings for the period interest on the interest rate derivatives.

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- Definition

Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and not elected to be offset.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
-Section 55
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Aggregate net gain (loss) on all derivative instruments recognized in earnings during the period, before tax effects.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
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- Definition

The net change in the difference between the fair value and the carrying value, or in the comparative fair values, of derivative instruments, including options, swaps, futures, and forward contracts, held at each balance sheet date, that was included in earnings for the period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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