XML 89 R65.htm IDEA: XBRL DOCUMENT v3.22.0.1
Property, Plant and Equipment, net and Intangibles, net - Components of Property, Plant and Equipment (Details) - USD ($)
$ in Thousands
12 Months Ended
Jan. 01, 2022
Jan. 02, 2021
Property, Plant and Equipment [Line Items]    
Property, plant, and equipment and finance lease right-of-use asset, before accumulated depreciation and amortization $ 3,109,421 $ 2,983,094
Less accumulated depreciation, depletion and amortization (1,266,513) (1,132,925)
Property, plant and equipment including finance lease right-of-use asset, net 1,842,908 1,850,169
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 3,109,421 2,983,094
Less accumulated depreciation, depletion and amortization (1,266,513) (1,132,925)
Property, plant and equipment including finance lease right-of-use asset, net 1,842,908 1,850,169
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 535,198 468,966
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 535,198 468,966
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 196,843 197,432
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 196,843 197,432
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 $ 185,472 181,198
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 $ 185,472 181,198
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 $ 1,405,694 1,397,410
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 $ 1,405,694 1,397,410
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 $ 560,515 543,133
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 $ 560,515 543,133
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 $ 54,700 56,163
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 $ 54,700 56,163
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 $ 52,258 52,202
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 $ 52,258 52,202
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 $ 47,389 45,942
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 $ 47,389 45,942
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 $ 71,352 40,648
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 $ 71,352 $ 40,648
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