COMMITMENTS, CONTINGENCIES AND GUARANTEES, Commitments Narrative (Details) $ in Thousands |
6 Months Ended |
|---|---|
|
Mar. 31, 2026
USD ($)
commitment
| |
| Securities Industry Protection Corporation (SIPC) | |
| Commitments [Line Items] | |
| SIPC fund securities per customer limit (up to) | $ 500 |
| Per customer upper limit claims for cash balances | 250 |
| Raymond James & Associates Inc | |
| Commitments [Line Items] | |
| Excess SIPC insured amount upper limit | 750,000 |
| Excess SIPC Sub-limit per customer cash above basic SIPC | $ 1,900 |
| Underwriting commitment | |
| Commitments [Line Items] | |
| Number of open underwriting commitments | commitment | 3 |
| Unfunded lending commitments | |
| Commitments [Line Items] | |
| Amount of commitment | $ 19,000 |
| Various investment commitment | |
| Commitments [Line Items] | |
| Amount of commitment | 132,000 |
| Commitment to lend to RJTCF | |
| Commitments [Line Items] | |
| Amount of commitment | $ 294,000 |
| Number of days that investments in project partnerships are typically sold (in days) | 90 days |