Quarterly report pursuant to Section 13 or 15(d)

Debt - Interest Rate Contracts (Details)

v3.20.2
Debt - 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, 2020
Sep. 30, 2019
Derivative [Line Items]    
Pay fixed swaps - notional amount $ 343,750 $ 293,750
Net unrealized loss $ (6,269) $ (534)
Weighted-average maturity period (years) 2 years 7 months 6 days 1 year 10 months 24 days
Weighted-average received rate (as a percent) 0.16% 2.02%
Weighted-average pay rate (as a percent) 1.33% 1.41%