v3.22.4
Debt - Senior Notes (Details) - USD ($)
3 Months Ended 12 Months Ended
Sep. 27, 2021
Aug. 11, 2020
Mar. 15, 2019
Oct. 02, 2021
Sep. 26, 2020
Dec. 31, 2022
Jan. 01, 2022
Jan. 02, 2021
Aug. 31, 2020
Debt                  
Loss on debt financings       $ 6,000,000   $ 1,737,000 $ 6,016,000 $ 4,064,000  
Write off of deferred financing fees           462,000 2,116,000    
Long-term debt           1,504,549,000 1,609,298,000    
Issuers | 5.125% Senior Notes, due 2025                  
Debt                  
Debt redeemed $ 300,000,000                
Senior notes, interest rate (as a percent) 5.125%                
Redemption premium       3,900,000          
Write off of deferred financing fees       $ 2,100,000          
Issuers | 5 1⁄4% Senior Notes, due 2029                  
Debt                  
Senior notes, interest rate (as a percent)   5.25%              
Long-term debt   $ 700,000,000              
Proceeds net of related fees and expenses   $ 690,400,000              
Issuers | 6.125 Senior Notes, due 2023                  
Debt                  
Senior notes, interest rate (as a percent)                 6.125%
Write off of deferred financing fees         $ 3,300,000        
Senior notes, aggregate principal amount redeemed                 $ 650,000,000
Loss on extinguishment         4,100,000        
Write-off of debt discount         $ 800,000        
Summit Materials, LLC                  
Debt                  
Loss on debt financings           1,737,000 6,016,000 $ 4,064,000  
Write off of deferred financing fees           462,000 2,116,000    
Long-term debt           $ 1,504,549,000 1,609,298,000    
Senior Notes | 5 1⁄4% Senior Notes, due 2029                  
Debt                  
Senior notes, interest rate (as a percent)           5.25%      
Long-term debt           $ 700,000,000 700,000,000    
Senior Notes | 6 1⁄2% Senior Notes, due 2027                  
Debt                  
Senior notes, interest rate (as a percent)           6.50%      
Long-term debt           $ 300,000,000 300,000,000    
Senior Notes | Issuers | 5 1⁄4% Senior Notes, due 2029                  
Debt                  
Percentage of par value of senior notes   100.00%              
Senior Notes | Issuers | 6 1⁄2% Senior Notes, due 2027                  
Debt                  
Senior notes, interest rate (as a percent)     6.50%            
Long-term debt     $ 300,000,000            
Percentage of par value of senior notes     100.00%            
Proceeds net of related fees and expenses     $ 296,300,000            
Senior Notes | Summit Materials, LLC | 5 1⁄4% Senior Notes, due 2029                  
Debt                  
Senior notes, interest rate (as a percent)           5.25%      
Long-term debt           $ 700,000,000 700,000,000    
Senior Notes | Summit Materials, LLC | 6 1⁄2% Senior Notes, due 2027                  
Debt                  
Senior notes, interest rate (as a percent)           6.50%      
Long-term debt           $ 300,000,000 $ 300,000,000