v3.24.0.1
LONG-TERM DEBT - Narrative (Details)
$ in Millions, $ in Millions
 12 Months Ended
Dec. 31, 2023
USD ($)
Dec. 31, 2023
CAD ($)
Dec. 31, 2022
CAD ($)
Dec. 31, 2023
CAD ($)
Dec. 29, 2023
USD ($)
Dec. 29, 2023
CAD ($)
Dec. 07, 2023
CAD ($)
Dec. 31, 2021
CAD ($)
Jun. 08, 2021
USD ($)
Disclosure of detailed information about borrowings [line items]                  
Borrowings     $ 9,266.8 $ 8,836.9       $ 8,001.8  
Issuance of long-term debt   $ 4,972.3 1,656.4            
Cost                  
Disclosure of detailed information about borrowings [line items]                  
Borrowings     9,252.0 $ 8,834.6          
BSBY rate | Minimum                  
Disclosure of detailed information about borrowings [line items]                  
Borrowings, adjustment to interest rate basis 1.50%     1.50%          
BSBY rate | Maximum                  
Disclosure of detailed information about borrowings [line items]                  
Borrowings, adjustment to interest rate basis 3.50%     3.50%          
SOFR | Minimum                  
Disclosure of detailed information about borrowings [line items]                  
Borrowings, adjustment to interest rate basis 2.00%     2.00%          
SOFR | Maximum                  
Disclosure of detailed information about borrowings [line items]                  
Borrowings, adjustment to interest rate basis 3.25%     3.25%          
Floating | LIBOR | Minimum                  
Disclosure of detailed information about borrowings [line items]                  
Borrowings, interest rate 1.50%     1.50%          
Floating | LIBOR | Maximum                  
Disclosure of detailed information about borrowings [line items]                  
Borrowings, interest rate 2.25%     2.25%          
Floating | Prime Rate | Minimum                  
Disclosure of detailed information about borrowings [line items]                  
Borrowings, interest rate 0.50%     0.50%          
Floating | Prime Rate | Maximum                  
Disclosure of detailed information about borrowings [line items]                  
Borrowings, interest rate 1.25%     1.25%          
Revolving Credit Facility                  
Disclosure of detailed information about borrowings [line items]                  
Borrowings         $ 75.0 $ 1,205.0      
Revolving Credit Facility | Cost                  
Disclosure of detailed information about borrowings [line items]                  
Borrowings     771.8 $ 184.9          
Revolving Credit Facility | Minimum                  
Disclosure of detailed information about borrowings [line items]                  
Interest coverage ratio 3.00     3.00          
Revolving Credit Facility | Maximum                  
Disclosure of detailed information about borrowings [line items]                  
Total net funded debt to adjusted EBITDA ratio 5.75     5.75          
Revolving Credit Facility | Four complete fiscal quarters | Maximum                  
Disclosure of detailed information about borrowings [line items]                  
Total net funded debt to adjusted EBITDA ratio 6.00     6.00          
Term Loan A Faacility                  
Disclosure of detailed information about borrowings [line items]                  
Borrowings             $ 775.0    
Term Loan B Facility | Floating | LIBOR | Minimum                  
Disclosure of detailed information about borrowings [line items]                  
Borrowings, interest rate 0.50%     0.50%          
Term Loan B Facility | Floating | LIBOR | Maximum                  
Disclosure of detailed information about borrowings [line items]                  
Borrowings, interest rate 2.50%     2.50%          
Term Loan B Facility | Floating | Prime Rate                  
Disclosure of detailed information about borrowings [line items]                  
Borrowings, interest rate 1.50%     1.50%          
8.500% USD senior unsecured notes, ("8.500% 2027 Notes")                  
Disclosure of detailed information about borrowings [line items]                  
Borrowings, interest rate                 8.50%
8.500% USD senior unsecured notes, ("8.500% 2027 Notes") | Currency risk                  
Disclosure of detailed information about borrowings [line items]                  
Notional amount per note                 $ 348.0
Average rate of hedging instrument                 8.828%
4.250% USD senior secured notes ("4.250% 2025 Secured Notes") | Cost                  
Disclosure of detailed information about borrowings [line items]                  
Borrowings     $ 677.2 $ 661.3          
Borrowings, interest rate 4.25%   4.25% 4.25%          
3.750% USD senior secured notes ("3.750%% 2025 Secured Notes") | Cost                  
Disclosure of detailed information about borrowings [line items]                  
Borrowings     $ 1,015.8 $ 992.0          
Borrowings, interest rate 3.75%   3.75% 3.75%          
5.125% USD senior secured notes ("5.125% 2026 Secured Notes") | Cost                  
Disclosure of detailed information about borrowings [line items]                  
Borrowings     $ 677.2 $ 661.3          
Borrowings, interest rate 5.125%   5.125% 5.125%          
3.500% USD senior secured notes ("3.500% 2028 Secured Notes") | Cost                  
Disclosure of detailed information about borrowings [line items]                  
Borrowings     $ 1,015.8 $ 992.0          
Borrowings, interest rate 3.50%   3.50% 3.50%          
6.750% USD senior secured notes ("6.750% 2031 Secured Notes") | Cost                  
Disclosure of detailed information about borrowings [line items]                  
Borrowings     $ 0.0 $ 1,322.6          
Borrowings, interest rate 6.75%   6.75% 6.75%          
4.000% USD senior notes ("4.000% 2028 Notes") | Cost                  
Disclosure of detailed information about borrowings [line items]                  
Borrowings     $ 1,015.8 $ 992.0          
Borrowings, interest rate 4.00%   4.00% 4.00%          
4.750% 2029 Notes Effective June 8, 2021 | Cost                  
Disclosure of detailed information about borrowings [line items]                  
Borrowings     $ 1,015.8 $ 992.0          
Borrowings, interest rate 4.75%   4.75% 4.75%          
4.375% USD senior notes ("4.375% 2029 Notes") | Cost                  
Disclosure of detailed information about borrowings [line items]                  
Borrowings     $ 744.9 $ 727.4          
Borrowings, interest rate 4.375%   4.375% 4.375%          
Other | Cost                  
Disclosure of detailed information about borrowings [line items]                  
Borrowings     $ 75.0 $ 347.3          
Promissory notes                  
Disclosure of detailed information about borrowings [line items]                  
Borrowings $ 50.0                
Borrowings, interest rate 5.00%     5.00%          
Term loan, maturing September 21, 2025                  
Disclosure of detailed information about borrowings [line items]                  
Borrowings $ 13.0                
Issuance of long-term debt 13.0                
Revolving credit facility, maturing September 21, 2025                  
Disclosure of detailed information about borrowings [line items]                  
Borrowings 15.0                
Issuance of long-term debt   $ 0.0              
Term loan, maturing August 31, 2028                  
Disclosure of detailed information about borrowings [line items]                  
Borrowings 170.0                
Issuance of long-term debt 170.0                
Revolving credit facility, maturing August 31, 2028                  
Disclosure of detailed information about borrowings [line items]                  
Borrowings 100.0                
Issuance of long-term debt $ 29.3