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INCOME TAXES - Additional Information (Details) - USD ($) $ in Millions | 1 Months Ended | 3 Months Ended |
--- | --- | --- | ---
Feb. 28, 2021 | Sep. 30, 2023 | Sep. 30, 2022 | Jun. 30, 2023
Income Tax Contingency [Line Items] |  |  |  |
Effective income tax rate (as a percent) |  | 11.30% | (40.40%) |
Effective canadian statutory income tax rate (as a percent) |  | 26.50% |  |
Unrecognized tax benefits |  | $ 183.1 |  | $ 178.7
Interest and penalties accrued |  | 17.6 |  | 13.5
Possible decrease in tax expense in next 12 months |  | 14.5 |  |
Provision for deferred income tax liabilities |  | $ 29.2 |  | $ 28.3
Micro Focus |  |  |  |
Income Tax Contingency [Line Items] |  |  |  |
Tax settlement resulting in long-term income tax receivable | $ 42.9 |  |  |

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