TRADE AND OTHER RECEIVABLES, NET - Allowance for doubtful accounts (Details) - USD ($) $ in Thousands |
1 Months Ended | 3 Months Ended | 6 Months Ended | 12 Months Ended | ||
|---|---|---|---|---|---|---|
Jun. 30, 2022 |
Sep. 30, 2022 |
Sep. 30, 2021 |
Sep. 30, 2022 |
Sep. 30, 2021 |
Mar. 31, 2022 |
|
| TRADE AND OTHER RECEIVABLES, NET | ||||||
| Balance, beginning of year | $ 14,037 | $ 18,578 | $ 18,578 | |||
| Provision for expected credit loss | $ 16,756 | $ 2,945 | 27,206 | $ 9,018 | 24,242 | |
| Bad debts written off | (17,312) | (34,504) | ||||
| Recoveries | 1,246 | 5,148 | ||||
| Foreign exchange | (278) | 573 | ||||
| Balance, end of year | 24,899 | 24,899 | 14,037 | |||
| Unbilled revenue | 106,212 | 106,212 | 82,946 | |||
| Expected proceeds receivable from ERCOT | $ 147,500 | |||||
| Proceeds from Accounts Receivable Securitization | $ 147,500 | |||||
| Credit risk | ||||||
| TRADE AND OTHER RECEIVABLES, NET | ||||||
| Unbilled revenue | $ 98,400 | $ 98,400 | $ 71,200 | |||