FEE AND COMMISSION INCOME AND EXPENSE - Narrative (Details) - USD ($) $ in Millions |
12 Months Ended | |
|---|---|---|
Mar. 31, 2026 |
Mar. 31, 2025 |
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| Receivables [Abstract] | ||
| Customer loyalty program, cash back incentive | $ 154.8 | $ 24.2 |
| X | ||||||||||
- Definition Customer Loyalty Program, Cash Back Incentive, Amount Netted During Period No definition available.
|
| X | ||||||||||
- References No definition available.
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