v3.22.4
Inventories - Components of Inventories (Details) - USD ($)
$ in Thousands
Dec. 31, 2022
Jan. 01, 2022
Inventory [Line Items]    
Aggregate stockpiles $ 148,347 $ 130,640
Finished goods 33,622 22,690
Work in process 8,191 8,277
Raw materials 22,331 19,153
Total 212,491 180,760
Summit Materials, LLC    
Inventory [Line Items]    
Aggregate stockpiles 148,347 130,640
Finished goods 33,622 22,690
Work in process 8,191 8,277
Raw materials 22,331 19,153
Total $ 212,491 $ 180,760