Quarterly report pursuant to Section 13 or 15(d)

Debt and Financing Arrangements - Interest Rate Contracts (Details)

v3.22.2
Debt and Financing Arrangements - Interest Rate Contracts (Details) - Cash Flow Hedging - Designated as Hedging Instrument - Interest rate swap contracts - USD ($)
$ in Thousands
9 Months Ended 12 Months Ended
Jun. 30, 2022
Sep. 30, 2021
Derivative [Line Items]    
Pay fixed swaps - notional amount $ 125,000 $ 250,000
Net unrealized gain (loss) $ 7,407 $ (2,062)
Weighted-average maturity period (years) 3 years 1 month 6 days 2 years 2 months 12 days
Weighted-average received rate (as a percent) 1.79% 0.08%
Weighted-average pay rate (as a percent) 1.04% 1.34%