v3.22.4
Accrued Mining and Landfill Reclamation (Tables)
12 Months Ended
Dec. 31, 2022
Asset Retirement Obligations [Line Items]  
Activity for Asset Retirement Obligations The following table presents the activity for the asset retirement obligations for the years ended December 31, 2022 and January 1, 2022: 
 20222021
Beginning balance$45,051 $43,603 
Acquired obligations739 337 
Change in cost estimate(1,238)1,427 
Settlement of reclamation obligations(2,756)(3,240)
Dispositions(4,150)— 
Accretion expense2,613 2,924 
Ending balance$40,259 $45,051 
Summit Materials, LLC  
Asset Retirement Obligations [Line Items]  
Activity for Asset Retirement Obligations The following table presents the activity for the asset retirement obligations for the years ended December 31, 2022 and January 1, 2022:
 20222021
Beginning balance$45,051 $43,603 
Acquired obligations739 337 
Change in cost estimate(1,238)1,427 
Settlement of reclamation obligations(2,756)(3,240)
Dispositions(4,150)— 
Accretion expense2,613 2,924 
Ending balance$40,259 $45,051