Note M - Other Comprehensive Income - Summary of Other Comprehensive Loss (Details) - USD ($)	3 Months Ended
Jun. 30, 2021	Jun. 30, 2020
Cash flow hedges, before tax	$ (18,055,560)
Cash flow hedges, tax benefit	4,362,223
Cash flow hedges, net of tax	(13,693,337)	$ 0
Other comprehensive loss, before tax	(18,055,560)
Other comprehensive loss, tax benefit	4,362,223
Other comprehensive loss, net of tax	$ (13,693,337)	$ 0

Amount before tax of other comprehensive income (loss) attributable to parent entity.

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