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

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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

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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.

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Financial Instruments and Fair Value Disclosures (FV) (Details) - USD ($)	3 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Mar. 31, 2018
Derivative Instruments
Change in fair value	$ 1,707,616	$ (2,370,191)
Realized gain/(loss) on derivatives	782,565	(612,863)
Interest rate swaps \| Derivatives not designated as hedging instruments
Derivative Instruments
Gain/(loss) on derivatives, net	2,490,181	(2,983,054)
Interest rate swaps \| Derivatives not designated as hedging instruments \| Unrealized loss on derivatives
Derivative Instruments
Change in fair value	1,707,616	(2,370,191)
Interest rate swaps \| Derivatives not designated as hedging instruments \| Realized loss on derivatives
Derivative Instruments
Realized gain/(loss) on derivatives	782,565	$ (612,863)
Interest rate swaps \| Derivatives not designated as hedging instruments \| Other non-current assets-Derivative instruments
Derivative Instruments
Derivative Asset	$ 15,972,515		$ 14,264,899