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Indebtedness (Details) $ in Millions, $ in Millions |  |  |  |  |  | 3 Months Ended | 9 Months Ended |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Oct. 29, 2025 USD ($) | Sep. 13, 2024 CAD ($) | Apr. 27, 2021 USD ($) | Dec. 06, 2019 USD ($) | Oct. 11, 2019 USD ($) | Oct. 11, 2019 | Sep. 30, 2025 CAD ($) | Sep. 30, 2025 USD ($) | Sep. 30, 2024 CAD ($) | Sep. 30, 2024 USD ($) | Sep. 30, 2025 CAD ($) | Sep. 30, 2025 USD ($) | Sep. 30, 2024 CAD ($) | Sep. 30, 2024 USD ($) | Sep. 30, 2025 USD ($)
Indebtedness [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revolving credit facility |  |  |  |  |  |  | $ 200.0 |  |  |  | $ 200.0 |  |  |  |
Rate percentage |  |  |  |  |  |  | 5.00% |  |  |  | 5.00% |  |  |  | 5.00%
Repurchased principal amount |  | $ 2,140.0 |  |  |  |  |  |  |  |  |  |  |  |  |
Open market purchases |  | $ 400.0 |  |  |  |  |  |  |  |  |  |  |  |  |
Warrants equivalent |  |  |  |  |  |  |  |  |  |  | 11.87% | 11.87% |  |  |
Warrants exercisable |  |  |  |  |  |  |  |  |  |  | 11.87% | 11.87% |  |  |
Issuance of the warrants |  |  |  |  |  |  | 10 years |  |  |  | 10 years |  |  |  | 10 years
U.S. TLB Facility [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Indebtedness [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Credit exposure (in Dollars) |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 1,908.5
Term Loan B [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Indebtedness [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Principal amount |  |  |  |  |  |  |  |  | $ 40.9 | $ 30.0 |  |  | $ 121.1 | $ 88.7 |
Exchange amount |  |  |  |  |  |  |  |  | 19.4 | 14.3 |  |  | 61.1 | 44.8 |
Senior Unsecured Notes [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Indebtedness [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Principal amount |  |  |  |  | $ 550.0 |  |  |  |  |  |  |  |  |  |
Rate percentage |  |  |  |  | 6.50% | 6.50% |  |  |  |  |  |  |  |  |
Maturity term |  |  |  |  |  | October 2027 |  |  |  |  |  |  |  |  |
2027 Senior Unsecured Notes [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Indebtedness [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Exchange amount |  |  |  |  |  |  |  |  | 30.4 | 22.3 | $ 4.5 | $ 3.3 | 30.4 | 22.3 |
Repurchased principal amount |  |  |  |  |  |  |  |  | 100.4 | 73.8 | 11.4 | 8.2 | 100.4 | 73.8 |
Senior Secured Notes [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Indebtedness [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Principal amount |  |  | $ 500.0 | $ 400.0 |  |  |  |  |  |  |  |  |  |  |
Rate percentage |  |  | 5.625% | 4.875% |  |  |  |  |  |  |  |  |  |  |
Maturity term |  |  | December 2026 | June 2027 |  |  |  |  |  |  |  |  |  |  |
2026 Senior Secured Notes [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Indebtedness [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Exchange amount |  |  |  |  |  |  |  |  | 8.0 | 5.9 |  |  | 8.0 | 5.9 |
Repurchased principal amount |  |  |  |  |  |  |  |  | $ 16.4 | $ 12.0 |  |  | 16.4 | 12.0 |
2027 Senior Secured Notes [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Indebtedness [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Exchange amount |  |  |  |  |  |  |  |  |  |  |  |  | 48.4 | 35.1 |
Repurchased principal amount |  |  |  |  |  |  |  |  |  |  |  |  | $ 103.3 | $ 75.0 |
Government of Canada [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Indebtedness [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Advances received |  |  |  |  |  |  | 54.7 |  |  |  | 341.2 |  |  |  |
Government of Quebec [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Indebtedness [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Advances received |  |  |  |  |  |  | $ 10.3 |  |  |  | 63.8 |  |  |  |
Interest expenses |  |  |  |  |  |  |  |  |  |  | $ 16.3 |  |  |  |
Subsequent Event [Member] | Government of Canada [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Indebtedness [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Advances received | $ 113.7 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Event [Member] | Government of Quebec [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Indebtedness [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Advances received | $ 21.3 |  |  |  |  |  |  |  |  |  |  |  |  |  |

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