v3.26.1
Financial instruments and fair values - Schedule of Fair Value Measurement (Details) - CAD ($)
$ in Millions
Mar. 29, 2026
Mar. 30, 2025
Disclosure of fair value measurement of assets and liabilities [Line Items]    
Financial assets $ 1,753.2 $ 1,631.9
Financial liabilities 1,125.4 1,075.3
Carrying value | Derivatives included in accounts payable and accrued liabilities    
Disclosure of fair value measurement of assets and liabilities [Line Items]    
Financial liabilities 2.8 2.6
Carrying value | Earn-Out included in accounts payable and accrued liabilities (note 20)    
Disclosure of fair value measurement of assets and liabilities [Line Items]    
Financial liabilities 0.0 9.0
Carrying value | Term Loan    
Disclosure of fair value measurement of assets and liabilities [Line Items]    
Financial liabilities 410.6 412.0
Carrying value | Derivatives included in other long-term liabilities    
Disclosure of fair value measurement of assets and liabilities [Line Items]    
Financial liabilities 0.3 0.0
Carrying value | Put option liability included in other long-term liabilities    
Disclosure of fair value measurement of assets and liabilities [Line Items]    
Financial liabilities 37.4 39.0
Carrying value | Contingent consideration included in other long-term liabilities    
Disclosure of fair value measurement of assets and liabilities [Line Items]    
Financial liabilities 0.5 1.5
Carrying value | Derivatives included in accounts payable and accrued liabilities    
Disclosure of fair value measurement of assets and liabilities [Line Items]    
Financial assets 4.4 24.2
Carrying value | Derivatives included in other long-term liabilities    
Disclosure of fair value measurement of assets and liabilities [Line Items]    
Financial assets 0.2 0.0
Fair value | Derivatives included in accounts payable and accrued liabilities    
Disclosure of fair value measurement of assets and liabilities [Line Items]    
Financial liabilities 2.8 2.6
Fair value | Earn-Out included in accounts payable and accrued liabilities (note 20)    
Disclosure of fair value measurement of assets and liabilities [Line Items]    
Financial liabilities 0.0 9.0
Fair value | Term Loan    
Disclosure of fair value measurement of assets and liabilities [Line Items]    
Financial liabilities 417.6 413.1
Fair value | Derivatives included in other long-term liabilities    
Disclosure of fair value measurement of assets and liabilities [Line Items]    
Financial liabilities 0.3 0.0
Fair value | Put option liability included in other long-term liabilities    
Disclosure of fair value measurement of assets and liabilities [Line Items]    
Financial liabilities 37.4 39.0
Fair value | Contingent consideration included in other long-term liabilities    
Disclosure of fair value measurement of assets and liabilities [Line Items]    
Financial liabilities 0.5 1.5
Fair value | Derivatives included in accounts payable and accrued liabilities    
Disclosure of fair value measurement of assets and liabilities [Line Items]    
Financial assets 4.4 24.2
Fair value | Derivatives included in other long-term liabilities    
Disclosure of fair value measurement of assets and liabilities [Line Items]    
Financial assets 0.2 0.0
Level 1 | Derivatives included in accounts payable and accrued liabilities    
Disclosure of fair value measurement of assets and liabilities [Line Items]    
Financial liabilities 0.0 0.0
Level 1 | Earn-Out included in accounts payable and accrued liabilities (note 20)    
Disclosure of fair value measurement of assets and liabilities [Line Items]    
Financial liabilities 0.0 0.0
Level 1 | Term Loan    
Disclosure of fair value measurement of assets and liabilities [Line Items]    
Financial liabilities 0.0 0.0
Level 1 | Derivatives included in other long-term liabilities    
Disclosure of fair value measurement of assets and liabilities [Line Items]    
Financial liabilities 0.0 0.0
Level 1 | Put option liability included in other long-term liabilities    
Disclosure of fair value measurement of assets and liabilities [Line Items]    
Financial liabilities 0.0 0.0
Level 1 | Contingent consideration included in other long-term liabilities    
Disclosure of fair value measurement of assets and liabilities [Line Items]    
Financial liabilities 0.0 0.0
Level 1 | Derivatives included in accounts payable and accrued liabilities    
Disclosure of fair value measurement of assets and liabilities [Line Items]    
Financial assets 0.0 0.0
Level 1 | Derivatives included in other long-term liabilities    
Disclosure of fair value measurement of assets and liabilities [Line Items]    
Financial assets 0.0 0.0
Level 2 | Derivatives included in accounts payable and accrued liabilities    
Disclosure of fair value measurement of assets and liabilities [Line Items]    
Financial liabilities 2.8 2.6
Level 2 | Earn-Out included in accounts payable and accrued liabilities (note 20)    
Disclosure of fair value measurement of assets and liabilities [Line Items]    
Financial liabilities 0.0 0.0
Level 2 | Term Loan    
Disclosure of fair value measurement of assets and liabilities [Line Items]    
Financial liabilities 410.6 412.0
Level 2 | Derivatives included in other long-term liabilities    
Disclosure of fair value measurement of assets and liabilities [Line Items]    
Financial liabilities 0.3 0.0
Level 2 | Put option liability included in other long-term liabilities    
Disclosure of fair value measurement of assets and liabilities [Line Items]    
Financial liabilities 0.0 0.0
Level 2 | Contingent consideration included in other long-term liabilities    
Disclosure of fair value measurement of assets and liabilities [Line Items]    
Financial liabilities 0.0 0.0
Level 2 | Derivatives included in accounts payable and accrued liabilities    
Disclosure of fair value measurement of assets and liabilities [Line Items]    
Financial assets 4.4 24.2
Level 2 | Derivatives included in other long-term liabilities    
Disclosure of fair value measurement of assets and liabilities [Line Items]    
Financial assets 0.2 0.0
Level 3 | Derivatives included in accounts payable and accrued liabilities    
Disclosure of fair value measurement of assets and liabilities [Line Items]    
Financial liabilities 0.0 0.0
Level 3 | Earn-Out included in accounts payable and accrued liabilities (note 20)    
Disclosure of fair value measurement of assets and liabilities [Line Items]    
Financial liabilities 0.0 9.0
Level 3 | Term Loan    
Disclosure of fair value measurement of assets and liabilities [Line Items]    
Financial liabilities 0.0 0.0
Level 3 | Derivatives included in other long-term liabilities    
Disclosure of fair value measurement of assets and liabilities [Line Items]    
Financial liabilities 0.0 0.0
Level 3 | Put option liability included in other long-term liabilities    
Disclosure of fair value measurement of assets and liabilities [Line Items]    
Financial liabilities 37.4 39.0
Level 3 | Contingent consideration included in other long-term liabilities    
Disclosure of fair value measurement of assets and liabilities [Line Items]    
Financial liabilities 0.5 1.5
Level 3 | Derivatives included in accounts payable and accrued liabilities    
Disclosure of fair value measurement of assets and liabilities [Line Items]    
Financial assets 0.0 0.0
Level 3 | Derivatives included in other long-term liabilities    
Disclosure of fair value measurement of assets and liabilities [Line Items]    
Financial assets $ 0.0 $ 0.0