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Derivatives (Table Text Block) | 9 Months Ended | 12 Months Ended
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Dec. 31, 2022 | Mar. 31, 2022
Derivative Instruments and Hedging Activities Disclosure [Abstract] |  |
Schedule of derivative instruments in statement of financial position, fair value | Derivatives Fair Values as of December 31, 2022 March 31, 2022 (Unaudited) (In thousands) Interest rate contracts designated as cash flow hedging instruments: Assets $ 8,206 $ – Liabilities $ – $ 587 Notional amount$ 208,467 $ 235,000 | Derivatives Fair Values as of December 31, 2022 March 31, 2022 (Unaudited) (In thousands) Equity market contracts as hedging instruments Assets $ 2,181 $ 7,474 Liabilities $ – $ – Notional amount$ 456,419 $ 416,739
Effect of Interest Rate Contracts on the Statement of Operations | The Effect of Interest Rate Contracts on the Statements of Operations for the Quarters Ended December 31, 2022 December 31, 2021 (Unaudited) (In thousands) (Gain) loss recognized in AOCI on interest rate contracts $ 302 $ (1,242) (Gain) loss reclassified from AOCI into income$ 455 $(1,007) |

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- Definition Tabular disclosure of the location and amount of derivative instruments and nonderivative instruments designated as hedging instruments reported before netting adjustments, and the amount of gain (loss) on derivative instruments and nonderivative instruments designated and qualified as hedging instruments. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4E -URI https://asc.fasb.org/extlink&oid=125515794&loc=SL5624181-113959 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4A -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=125515794&loc=SL5618551-113959 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -URI https://asc.fasb.org/extlink&oid=125515794&loc=SL5624171-113959 + Details
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