v3.22.4
Audit Information
12 Months Ended
Dec. 31, 2022
Auditor [Line Items]  
Auditor Name KPMG LLP
Auditor Location Denver, CO
Auditor Firm ID 185
Summit Materials, LLC  
Auditor [Line Items]  
Auditor Name KPMG LLP
Auditor Location Denver, CO
Auditor Firm ID 185