Derivatives (Table Text Block)

9 Months Ended

Dec. 31, 2023

Interest Rate Swap [Member]

Derivative [Line Items]

Schedule of derivative instruments in statement of financial position, fair value

	Derivatives Fair Values as of
	December 31, 2023		March 31, 2023
	(Unaudited)
	(In thousands)
Interest rate swaps designated as cash flow hedges:
Assets	$	5,086	$	5,311
Notional amount	$	299,987	$	206,347

Equity Swap [Member]

Derivative [Line Items]

Schedule of derivative instruments in statement of financial position, fair value

	Derivatives Fair Values as of
	December 31, 2023		March 31, 2023
	(Unaudited)
	(In thousands)
Equity market contracts as economic hedging instruments:
Assets	$	8,795	$	4,295
Notional amount	$	535,537	$	465,701