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SECURITIES REPURCHASE AGREEMENT OBLIGATIONS - Narrative (Details) - USD ($) $ in Thousands | Dec. 31, 2021 | Mar. 31, 2021
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Securities Sold under Agreements to Repurchase [Abstract] |  |
Fair value of collateral pledged under repurchase agreements | $ 711,850 | $ 374,610

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- Definition Fair value of the securities received as collateral against securities borrowed. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=99393222&loc=SL20226013-175313 + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- References No definition available. + Details
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Balance Type: | na
Period Type: | duration