v3.22.4
Segment Information - Financial Data (Details) - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Oct. 02, 2021
Dec. 31, 2022
Jan. 01, 2022
Jan. 02, 2021
Segment Reporting Information [Line Items]        
Revenue   $ 2,412,522 $ 2,409,669 $ 2,332,451
Income from operations before taxes   361,488 198,637 129,055
Interest expense   86,969 92,240 103,595
Depreciation, depletion and amortization   197,837 226,442 218,682
Accretion   2,613 2,924 2,638
Loss on debt financings $ 6,000 1,737 6,016 4,064
Tax receivable agreement expense (benefit)   1,566 (6,779) (7,559)
Loss (gain) on sale of businesses   (172,389) (20,011) 0
Non-cash compensation   18,347 19,705 28,857
Other   (6,692) 908 2,957
Total Adjusted EBITDA   491,476 520,082 482,289
Total purchases of property, plant and equipment   266,733 211,982 177,249
Total depreciation, depletion, amortization and accretion   200,450 229,366 221,320
Total assets   4,255,692 4,239,125 4,308,011
Operating segment        
Segment Reporting Information [Line Items]        
Total purchases of property, plant and equipment   252,358 210,745 175,099
Total depreciation, depletion, amortization and accretion   197,217 225,117 217,338
Total assets   3,590,603 3,649,022 3,657,959
Corporate and other        
Segment Reporting Information [Line Items]        
Total Adjusted EBITDA   (43,866) (50,120) (43,994)
Total purchases of property, plant and equipment   14,375 1,237 2,150
Total depreciation, depletion, amortization and accretion   3,233 4,249 3,982
Total assets   665,089 590,103 650,052
West        
Segment Reporting Information [Line Items]        
Revenue   1,390,307 1,262,061 1,262,196
West | Operating segment        
Segment Reporting Information [Line Items]        
Total Adjusted EBITDA   280,557 271,560 271,052
Total purchases of property, plant and equipment   123,085 94,056 67,500
Total depreciation, depletion, amortization and accretion   97,892 99,470 93,866
Total assets   1,565,776 1,512,298 1,503,382
East        
Segment Reporting Information [Line Items]        
Revenue   664,479 849,374 799,633
Loss (gain) on sale of businesses   (172,400)    
East | Operating segment        
Segment Reporting Information [Line Items]        
Total Adjusted EBITDA   129,203 181,483 162,275
Total purchases of property, plant and equipment   84,323 89,727 92,528
Total depreciation, depletion, amortization and accretion   63,297 86,623 86,205
Total assets   1,151,223 1,292,638 1,303,742
Cement        
Segment Reporting Information [Line Items]        
Revenue   357,736 298,234 270,622
Cement | Operating segment        
Segment Reporting Information [Line Items]        
Total Adjusted EBITDA   125,582 117,159 92,956
Total purchases of property, plant and equipment   44,950 26,962 15,071
Total depreciation, depletion, amortization and accretion   36,028 39,024 37,267
Total assets   873,604 844,086 850,835
Summit Materials, LLC        
Segment Reporting Information [Line Items]        
Revenue   2,412,522 2,409,669 2,332,451
Income from operations before taxes   362,722 191,920 121,800
Interest expense   86,969 92,178 103,291
Depreciation, depletion and amortization   197,837 226,442 218,682
Accretion   2,613 2,924 2,638
Loss on debt financings   1,737 6,016 4,064
Loss (gain) on sale of businesses   (172,389) (20,011) 0
Non-cash compensation   18,347 19,705 28,857
Other   (6,360) 908 2,957
Total Adjusted EBITDA   491,476 520,082 482,289
Total purchases of property, plant and equipment   266,733 211,982 177,249
Total depreciation, depletion, amortization and accretion   200,450 229,366 221,320
Total assets   4,119,706 4,035,559 4,077,134
Summit Materials, LLC | Operating segment        
Segment Reporting Information [Line Items]        
Total purchases of property, plant and equipment   252,358 210,745 175,099
Total depreciation, depletion, amortization and accretion   197,217 225,117 217,338
Total assets   3,590,603 3,649,022 3,657,959
Summit Materials, LLC | Corporate and other        
Segment Reporting Information [Line Items]        
Total Adjusted EBITDA   (43,866) (50,120) (43,994)
Total purchases of property, plant and equipment   14,375 1,237 2,150
Total depreciation, depletion, amortization and accretion   3,233 4,249 3,982
Total assets   529,103 386,537 419,175
Summit Materials, LLC | West        
Segment Reporting Information [Line Items]        
Revenue   1,390,307 1,262,061 1,262,196
Summit Materials, LLC | West | Operating segment        
Segment Reporting Information [Line Items]        
Total Adjusted EBITDA   280,557 271,560 271,052
Total purchases of property, plant and equipment   123,085 94,056 67,500
Total depreciation, depletion, amortization and accretion   97,892 99,470 93,866
Total assets   1,565,776 1,512,298 1,503,382
Summit Materials, LLC | East        
Segment Reporting Information [Line Items]        
Revenue   664,479 849,374 799,633
Loss (gain) on sale of businesses     (172,400)  
Summit Materials, LLC | East | Operating segment        
Segment Reporting Information [Line Items]        
Total Adjusted EBITDA   129,203 181,483 162,275
Total purchases of property, plant and equipment   84,323 89,727 92,528
Total depreciation, depletion, amortization and accretion   63,297 86,623 86,205
Total assets   1,151,223 1,292,638 1,303,742
Summit Materials, LLC | Cement        
Segment Reporting Information [Line Items]        
Revenue   357,736 298,234 270,622
Summit Materials, LLC | Cement | Operating segment        
Segment Reporting Information [Line Items]        
Total Adjusted EBITDA   125,582 117,159 92,956
Total purchases of property, plant and equipment   44,950 26,962 15,071
Total depreciation, depletion, amortization and accretion   36,028 39,024 37,267
Total assets   $ 873,604 $ 844,086 $ 850,835