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SECURITIES AND OTHER INVESTMENTS OWNED AND SECURITIES SOLD NOT YET PURCHASED - Schedule of equity securities without readily determinable fair value (Details) - USD ($) $ in Thousands	Mar. 31, 2026	Mar. 31, 2025
Securities And Other Investments Owned And Securities Sold Not Yet Purchased [Abstract]
Upward carrying value changes	$ 0	$ 1,732
Downward carrying value changes/impairment	$ (868)	$ (592)

X

- Definition

Equity Securities Without Readily Determinable Fair Value, Downward Price Adjustment, Cumulative Amounts

+ References

No definition available.

+ Details

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- Definition

Equity Securities Without Readily Determinable Fair Value, Upward Price Adjustment, Cumulative Amounts

+ References

No definition available.

+ Details

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X

- Definition

Securities And Other Investments Owned And Securities Sold Not Yet Purchased

+ References

No definition available.

+ Details

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