Derivatives and Hedging Activities - Narrative (Details) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Mar. 31, 2026 |
Mar. 31, 2025 |
Mar. 31, 2026 |
Mar. 31, 2025 |
|
| Interest rate contracts | ||||
| Derivative [Line Items] | ||||
| Derivative instruments not designated as hedging instruments, gain (loss), net | $ 380 | $ 65 | $ 404 | $ 70 |
| Minimum | ||||
| Derivative [Line Items] | ||||
| Derivative, maturities | 1 year | 1 year | ||
| Maximum | ||||
| Derivative [Line Items] | ||||
| Derivative, maturities | 7 years | 7 years | ||
| Weighted average | ||||
| Derivative [Line Items] | ||||
| Derivative, maturities | 3 years 10 months 24 days | 3 years 10 months 24 days | ||