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

Fair value of the securities received as collateral against securities borrowed.

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

Name:	us-gaap_SecuritiesBorrowedFairValueOfCollateral
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant