v3.22.4
Senior Notes' Guarantor and Non-Guarantor Financial Information - Schedule of Condensed Consolidating Statements of Operations and Comprehensive Income (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2022
Jan. 01, 2022
Jan. 02, 2021
Condensed Financial Statements, Captions [Line Items]      
Revenue $ 2,412,522 $ 2,409,669 $ 2,332,451
Cost of revenue 1,763,177 1,736,410 1,710,654
Depreciation, depletion, amortization and accretion 200,450 229,366 221,320
Operating income 269,047 253,065 225,173
Loss (gain) on sale of businesses (172,389) (20,011) 0
Income from operations before taxes 361,488 198,637 129,055
Income tax expense (benefit) 85,545 44,356 (12,185)
Net income attributable to Summit Inc/LLC 272,145 152,184 137,967
Comprehensive income (loss) income attributable to member of Summit Materials, LLC 268,146 154,064 139,722
Summit Materials, LLC      
Condensed Financial Statements, Captions [Line Items]      
Revenue 2,412,522 2,409,669 2,332,451
Cost of revenue 1,763,177 1,736,410 1,710,654
General and administrative expenses 179,848 190,828 175,304
Depreciation, depletion, amortization and accretion 200,450 229,366 221,320
Operating income 269,047 253,065 225,173
Other (income) loss, net (8,255) (11,022) 82
Interest expense (income) 86,969 92,178 103,291
Loss (gain) on sale of businesses (172,389) (20,011) 0
Income from operations before taxes 362,722 191,920 121,800
Income tax expense (benefit) 16,585 20,949 1,063
Net income attributable to Summit Inc/LLC 346,137 170,971 120,737
Comprehensive income (loss) income attributable to member of Summit Materials, LLC 340,787 173,528 123,125
Summit Materials, LLC | Eliminations      
Condensed Financial Statements, Captions [Line Items]      
Revenue (9,553) (13,866) (17,166)
Cost of revenue (9,553) (13,866) (17,166)
General and administrative expenses 0 0 0
Depreciation, depletion, amortization and accretion 0 0 0
Operating income 0 0 0
Other (income) loss, net 419,305 388,440 331,667
Interest expense (income) 0 0 0
Loss (gain) on sale of businesses 0 0  
Income from operations before taxes (419,305) (388,440) (331,667)
Income tax expense (benefit) 0 0 0
Net income attributable to Summit Inc/LLC (419,305) (388,440) (331,667)
Comprehensive income (loss) income attributable to member of Summit Materials, LLC (424,655) (385,883) (329,279)
Summit Materials, LLC | Issuers | Reportable Legal Entities      
Condensed Financial Statements, Captions [Line Items]      
Revenue 0 0 0
Cost of revenue 0 0 0
General and administrative expenses 63,279 70,384 72,504
Depreciation, depletion, amortization and accretion 3,232 4,249 3,983
Operating income (66,511) (74,633) (76,487)
Other (income) loss, net (425,356) (382,983) (328,914)
Interest expense (income) 141,892 135,206 130,176
Loss (gain) on sale of businesses (131,437) 0  
Income from operations before taxes 348,390 173,144 122,251
Income tax expense (benefit) 2,253 2,173 1,514
Net income attributable to Summit Inc/LLC 346,137 170,971 120,737
Comprehensive income (loss) income attributable to member of Summit Materials, LLC 340,787 173,528 123,125
Summit Materials, LLC | 100% Owned Guarantors | Reportable Legal Entities      
Condensed Financial Statements, Captions [Line Items]      
Revenue 2,297,761 2,307,127 2,259,865
Cost of revenue 1,683,024 1,665,196 1,663,957
General and administrative expenses 110,141 116,374 96,526
Depreciation, depletion, amortization and accretion 185,883 213,900 210,038
Operating income 318,713 311,657 289,344
Other (income) loss, net (1,850) (15,891) (2,473)
Interest expense (income) (60,403) (48,529) (31,402)
Loss (gain) on sale of businesses (40,952) (20,011)  
Income from operations before taxes 421,918 396,088 323,219
Income tax expense (benefit) 11,307 16,079 (4,737)
Net income attributable to Summit Inc/LLC 410,611 380,009 327,956
Comprehensive income (loss) income attributable to member of Summit Materials, LLC 404,130 378,706 330,185
Summit Materials, LLC | Non-Guarantors | Reportable Legal Entities      
Condensed Financial Statements, Captions [Line Items]      
Revenue 124,314 116,408 89,752
Cost of revenue 89,706 85,080 63,863
General and administrative expenses 6,428 4,070 6,274
Depreciation, depletion, amortization and accretion 11,335 11,217 7,299
Operating income 16,845 16,041 12,316
Other (income) loss, net (354) (588) (198)
Interest expense (income) 5,480 5,501 4,517
Loss (gain) on sale of businesses 0 0  
Income from operations before taxes 11,719 11,128 7,997
Income tax expense (benefit) 3,025 2,697 4,286
Net income attributable to Summit Inc/LLC 8,694 8,431 3,711
Comprehensive income (loss) income attributable to member of Summit Materials, LLC $ 20,525 $ 7,177 $ (906)