v3.22.4
Property, Plant and Equipment, net and Intangibles, net - Components of Property, Plant and Equipment (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2022
Jan. 01, 2022
Property, Plant and Equipment [Line Items]    
Property, plant, and equipment and finance lease right-of-use asset, before accumulated depreciation and amortization $ 3,081,259 $ 3,109,421
Less accumulated depreciation, depletion and amortization (1,267,557) (1,266,513)
Property, plant and equipment including finance lease right-of-use asset, net 1,813,702 1,842,908
Summit Materials, LLC    
Property, Plant and Equipment [Line Items]    
Property, plant, and equipment and finance lease right-of-use asset, before accumulated depreciation and amortization 3,081,259 3,109,421
Less accumulated depreciation, depletion and amortization (1,267,557) (1,266,513)
Property, plant and equipment including finance lease right-of-use asset, net 1,813,702 1,842,908
Mineral bearing land and leased interests    
Property, Plant and Equipment [Line Items]    
Property, plant, and equipment and finance lease right-of-use asset, before accumulated depreciation and amortization 515,153 535,198
Mineral bearing land and leased interests | Summit Materials, LLC    
Property, Plant and Equipment [Line Items]    
Property, plant, and equipment and finance lease right-of-use asset, before accumulated depreciation and amortization 515,153 535,198
Land (non-mineral bearing)    
Property, Plant and Equipment [Line Items]    
Property, plant, and equipment and finance lease right-of-use asset, before accumulated depreciation and amortization 183,926 196,843
Land (non-mineral bearing) | Summit Materials, LLC    
Property, Plant and Equipment [Line Items]    
Property, plant, and equipment and finance lease right-of-use asset, before accumulated depreciation and amortization 183,926 196,843
Buildings and improvements    
Property, Plant and Equipment [Line Items]    
Property, plant, and equipment and finance lease right-of-use asset, before accumulated depreciation and amortization $ 213,056 185,472
Buildings and improvements | Minimum    
Property, Plant and Equipment [Line Items]    
Estimated useful life 10 years  
Buildings and improvements | Maximum    
Property, Plant and Equipment [Line Items]    
Estimated useful life 30 years  
Buildings and improvements | Summit Materials, LLC    
Property, Plant and Equipment [Line Items]    
Property, plant, and equipment and finance lease right-of-use asset, before accumulated depreciation and amortization $ 213,056 185,472
Buildings and improvements | Summit Materials, LLC | Minimum    
Property, Plant and Equipment [Line Items]    
Estimated useful life 10 years  
Buildings and improvements | Summit Materials, LLC | Maximum    
Property, Plant and Equipment [Line Items]    
Estimated useful life 30 years  
Plants, machinery and equipment    
Property, Plant and Equipment [Line Items]    
Property, plant, and equipment and finance lease right-of-use asset, before accumulated depreciation and amortization $ 1,380,886 1,405,694
Plants, machinery and equipment | Minimum    
Property, Plant and Equipment [Line Items]    
Estimated useful life 7 years  
Plants, machinery and equipment | Maximum    
Property, Plant and Equipment [Line Items]    
Estimated useful life 20 years  
Plants, machinery and equipment | Summit Materials, LLC    
Property, Plant and Equipment [Line Items]    
Property, plant, and equipment and finance lease right-of-use asset, before accumulated depreciation and amortization $ 1,380,886 1,405,694
Plants, machinery and equipment | Summit Materials, LLC | Minimum    
Property, Plant and Equipment [Line Items]    
Estimated useful life 7 years  
Plants, machinery and equipment | Summit Materials, LLC | Maximum    
Property, Plant and Equipment [Line Items]    
Estimated useful life 20 years  
Mobile equipment and barges    
Property, Plant and Equipment [Line Items]    
Property, plant, and equipment and finance lease right-of-use asset, before accumulated depreciation and amortization $ 555,119 560,515
Mobile equipment and barges | Minimum    
Property, Plant and Equipment [Line Items]    
Estimated useful life 6 years  
Mobile equipment and barges | Maximum    
Property, Plant and Equipment [Line Items]    
Estimated useful life 8 years  
Mobile equipment and barges | Summit Materials, LLC    
Property, Plant and Equipment [Line Items]    
Property, plant, and equipment and finance lease right-of-use asset, before accumulated depreciation and amortization $ 555,119 560,515
Mobile equipment and barges | Summit Materials, LLC | Minimum    
Property, Plant and Equipment [Line Items]    
Estimated useful life 6 years  
Mobile equipment and barges | Summit Materials, LLC | Maximum    
Property, Plant and Equipment [Line Items]    
Estimated useful life 8 years  
Truck and auto fleet    
Property, Plant and Equipment [Line Items]    
Property, plant, and equipment and finance lease right-of-use asset, before accumulated depreciation and amortization $ 38,717 54,700
Truck and auto fleet | Minimum    
Property, Plant and Equipment [Line Items]    
Estimated useful life 5 years  
Truck and auto fleet | Maximum    
Property, Plant and Equipment [Line Items]    
Estimated useful life 8 years  
Truck and auto fleet | Summit Materials, LLC    
Property, Plant and Equipment [Line Items]    
Property, plant, and equipment and finance lease right-of-use asset, before accumulated depreciation and amortization $ 38,717 54,700
Truck and auto fleet | Summit Materials, LLC | Minimum    
Property, Plant and Equipment [Line Items]    
Estimated useful life 5 years  
Truck and auto fleet | Summit Materials, LLC | Maximum    
Property, Plant and Equipment [Line Items]    
Estimated useful life 8 years  
Landfill airspace and improvements    
Property, Plant and Equipment [Line Items]    
Property, plant, and equipment and finance lease right-of-use asset, before accumulated depreciation and amortization $ 55,027 52,258
Landfill airspace and improvements | Minimum    
Property, Plant and Equipment [Line Items]    
Estimated useful life 10 years  
Landfill airspace and improvements | Maximum    
Property, Plant and Equipment [Line Items]    
Estimated useful life 30 years  
Landfill airspace and improvements | Summit Materials, LLC    
Property, Plant and Equipment [Line Items]    
Property, plant, and equipment and finance lease right-of-use asset, before accumulated depreciation and amortization $ 55,027 52,258
Landfill airspace and improvements | Summit Materials, LLC | Minimum    
Property, Plant and Equipment [Line Items]    
Estimated useful life 10 years  
Landfill airspace and improvements | Summit Materials, LLC | Maximum    
Property, Plant and Equipment [Line Items]    
Estimated useful life 30 years  
Office equipment    
Property, Plant and Equipment [Line Items]    
Property, plant, and equipment and finance lease right-of-use asset, before accumulated depreciation and amortization $ 49,336 47,389
Office equipment | Minimum    
Property, Plant and Equipment [Line Items]    
Estimated useful life 3 years  
Office equipment | Maximum    
Property, Plant and Equipment [Line Items]    
Estimated useful life 7 years  
Office equipment | Summit Materials, LLC    
Property, Plant and Equipment [Line Items]    
Property, plant, and equipment and finance lease right-of-use asset, before accumulated depreciation and amortization $ 49,336 47,389
Office equipment | Summit Materials, LLC | Minimum    
Property, Plant and Equipment [Line Items]    
Estimated useful life 3 years  
Office equipment | Summit Materials, LLC | Maximum    
Property, Plant and Equipment [Line Items]    
Estimated useful life 7 years  
Construction in progress    
Property, Plant and Equipment [Line Items]    
Property, plant, and equipment and finance lease right-of-use asset, before accumulated depreciation and amortization $ 90,039 71,352
Construction in progress | Summit Materials, LLC    
Property, Plant and Equipment [Line Items]    
Property, plant, and equipment and finance lease right-of-use asset, before accumulated depreciation and amortization $ 90,039 $ 71,352
Other | Minimum    
Property, Plant and Equipment [Line Items]    
Estimated useful life 4 years  
Other | Maximum    
Property, Plant and Equipment [Line Items]    
Estimated useful life 20 years  
Other | Summit Materials, LLC | Minimum    
Property, Plant and Equipment [Line Items]    
Estimated useful life 4 years  
Other | Summit Materials, LLC | Maximum    
Property, Plant and Equipment [Line Items]    
Estimated useful life 20 years