XML 131 R114.htm IDEA: XBRL DOCUMENT v3.22.4
Fair Value Measurements - Summary of Fair Value Hierarchy for Liabilities (Details) - CAD ($)
$ in Millions
Dec. 31, 2022
Dec. 31, 2021
Disclosure of fair value measurement of liabilities [line items]    
Liabilities $ 3,366.5 $ 3,224.2
Not measured at fair value in statement of financial position but for which fair value is disclosed | Senior unsecured notes    
Disclosure of fair value measurement of liabilities [line items]    
Liabilities 298.6 298.2
Not measured at fair value in statement of financial position but for which fair value is disclosed | Level 1 | Senior unsecured notes    
Disclosure of fair value measurement of liabilities [line items]    
Liabilities 0.0 0.0
Not measured at fair value in statement of financial position but for which fair value is disclosed | Level 2 | Senior unsecured notes    
Disclosure of fair value measurement of liabilities [line items]    
Liabilities 259.8 290.1
Not measured at fair value in statement of financial position but for which fair value is disclosed | Level 3 | Senior unsecured notes    
Disclosure of fair value measurement of liabilities [line items]    
Liabilities $ 0.0 $ 0.0