XML 93 R72.htm IDEA: XBRL DOCUMENT v3.25.0.1
Income Taxes - Additional Information (Details) - Tax Litigation With Canada Revenue Agency - CAD ($)
$ in Millions
 1 Months Ended 3 Months Ended
Jun. 30, 2016
Dec. 31, 2023
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]    
Estimated length of time to receive judgment on potential appeal 2 years  
Insurance coverage purchased   $ 272.5
Costs incurred to purchase insurance coverage   50.3
Tax reassessment issued, amount of possible loss, amount owed by trusts   244.8
Tax reassessment issued, amount of possible loss, late payment interest   211.6
Tax reassessment issued, amount of possible loss, late filing penalty   4.1
Accumulated non-capital losses   $ 591.0
Minimum    
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]    
Estimated length of time to receive judgment 2 years  
Maximum    
Disclosure of temporary difference, unused tax losses and unused tax credits [line items]    
Estimated length of time to receive judgment 3 years