Annual report pursuant to Section 13 and 15(d)

Investment in Derivative Instruments - Realized and Unrealized Gains (Losses) (Details)

v3.22.2.2
Investment in Derivative Instruments - Realized and Unrealized Gains (Losses) (Details) - USD ($)
$ in Thousands
 12 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2020
Derivative Instruments and Hedging Activities Disclosures [Line Items]      
Realized Gain (Loss) $ 2,666 $ (60) $ (820)
Unrealized Gain (Loss) 382 3,209 (1,900)
Total Gain (Loss) 3,048 3,149 (2,720)
Cost of revenues      
Derivative Instruments and Hedging Activities Disclosures [Line Items]      
Realized Gain (Loss) 3,472 830 (432)
Unrealized Gain (Loss) (1,286) 2,315 (503)
Total Gain (Loss) 2,186 3,145 (935)
Interest expense, net      
Derivative Instruments and Hedging Activities Disclosures [Line Items]      
Realized Gain (Loss) (806) (890) (388)
Unrealized Gain (Loss) 1,668 894 (1,397)
Total Gain (Loss) $ 862 $ 4 $ (1,785)