LOANS ISSUED - Allowances for Credit Loss (Details) - USD ($) $ in Thousands	12 Months Ended
Mar. 31, 2025	Mar. 31, 2024
Accounts, Notes, Loans and Financing Receivable [Line Items]
Opening balance	$ (43,619)	$ (2,792)
Charges	(79,324)	(53,319)
Recoveries	25,088	38,274
Write off	16,225
Forex	6,515	(587)
Closing balance	(75,115)	(43,619)
Adjustment to allowance for adoption of ASU 2016-13
Accounts, Notes, Loans and Financing Receivable [Line Items]
Opening balance		(25,195)
Mortgage loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Opening balance	(3,033)	(554)
Charges	(10,043)	(2,361)
Recoveries	1,694	2,132
Write off	1
Forex	682	(34)
Closing balance	(10,699)	(3,033)
Mortgage loans \| Adjustment to allowance for adoption of ASU 2016-13
Accounts, Notes, Loans and Financing Receivable [Line Items]
Opening balance		(2,216)
Uncollateralized bank customer loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Opening balance	(19,636)	(233)
Charges	(38,895)	(22,464)
Recoveries	6,778	10,795
Write off	13,273
Forex	3,001	(298)
Closing balance	(35,479)	(19,636)
Uncollateralized bank customer loans \| Adjustment to allowance for adoption of ASU 2016-13
Accounts, Notes, Loans and Financing Receivable [Line Items]
Opening balance		(7,436)
Collateralized bank customer loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Opening balance	(80)	0
Charges	(4,703)	(115)
Recoveries	1,524	71
Write off	7
Forex	138	(1)
Closing balance	(3,114)	(80)
Collateralized bank customer loans \| Adjustment to allowance for adoption of ASU 2016-13
Accounts, Notes, Loans and Financing Receivable [Line Items]
Opening balance		(35)
Car loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Opening balance	(14,262)	(758)
Charges	(5,335)	(15,014)
Recoveries	6,761	8,181
Write off	2,914
Forex	1,457	(209)
Closing balance	(8,465)	(14,262)
Car loans \| Adjustment to allowance for adoption of ASU 2016-13
Accounts, Notes, Loans and Financing Receivable [Line Items]
Opening balance		(6,462)
Right of claim for purchased retail loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Opening balance	(6,577)	(1,247)
Charges	(20,324)	(13,334)
Recoveries	8,331	17,095
Write off	0
Forex	1,237	(45)
Closing balance	(17,333)	(6,577)
Right of claim for purchased retail loans \| Adjustment to allowance for adoption of ASU 2016-13
Accounts, Notes, Loans and Financing Receivable [Line Items]
Opening balance		(9,046)
Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Opening balance	(31)	0
Charges	(24)	(31)
Recoveries	0	0
Write off	30
Forex	0	0
Closing balance	$ (25)	(31)
Other \| Adjustment to allowance for adoption of ASU 2016-13
Accounts, Notes, Loans and Financing Receivable [Line Items]
Opening balance		$ 0

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 310
-SubTopic 20
-Name Accounting Standards Codification
-Section 40
-Paragraph 7
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481628/310-20-40-7

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481990/310-10-45-2

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Amount excluding accrued interest, of allowance for credit loss on financing receivable. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479344/326-20-45-1

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+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-13

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+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Subparagraph (e)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-13

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+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-6

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
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-Paragraph 13
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-13

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Amount, excluding accrued interest, of credit loss expense (reversal of expense) on financing receivable. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-13

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