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Financial Instruments: Derivatives and Hedging (Details) - USD ($) $ in Thousands | Nov. 30, 2021 | Sep. 30, 2020
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Financial Instruments: Derivatives and Hedging |  |
Hedged amount of portion of the future LIBOR-based rate risk |  | $ 20,200
Amount estimated to be reclassified into earnings within next 12 months |  | 10,300
JPM Term Loan |  |
Financial Instruments: Derivatives and Hedging |  |
Hedged amount of portion of the future LIBOR-based rate risk |  | 100,000
2017 Interest Rate Swap | Cash flow hedges |  |
Financial Instruments: Derivatives and Hedging |  |
Notional Value |  | $ 400,000
Strike Rate (as a percent) |  | 1.12%
Fair Value |  | $ (3,886)
2019 JPM Interest Rate Swap | Cash flow hedges |  |
Financial Instruments: Derivatives and Hedging |  |
Notional Value |  | $ 100,000
Strike Rate (as a percent) |  | 2.44%
Fair Value |  | $ (2,638)
2019 BMO Interest Rate Swap | Cash flow hedges |  |
Financial Instruments: Derivatives and Hedging |  |
Notional Value |  | $ 220,000
Strike Rate (as a percent) |  | 2.39%
Fair Value |  | $ (13,633)
2019 BMO Interest Rate Swap | Cash flow hedges | Forecast |  |
Financial Instruments: Derivatives and Hedging |  |
Notional Value | $ 165,000 |

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