Summit Materials (SUM) 10-Q 4 May 23 2023 Q1 Quarterly report Financial data

Cover

Cover - shares	3 Months Ended
	Apr. 01, 2023	May 01, 2023
Document Information [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Apr. 01, 2023
Document Transition Report	false
Entity File Number	001-36873
Entity Registrant Name	SUMMIT MATERIALS, INC.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	47-1984212
Entity Address, Address Line One	1801 California Street
Entity Address, Address Line Two	Suite 3500
Entity Address, City or Town	Denver
Entity Address, State or Province	CO
Entity Address, Postal Zip Code	80202
City Area Code	303
Local Phone Number	893-0012
Title of 12(b) Security	Class A Common Stock (par value $.01 per share)
Trading Symbol	SUM
Security Exchange Name	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Central Index Key	0001621563
Amendment Flag	false
Current Fiscal Year End Date	--01-01
Document Fiscal Year Focus	2023
Document Fiscal Period Focus	Q1
Common Class A
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		118,829,196
Common Class B
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		99
Summit Materials, LLC
Document Information [Line Items]
Entity File Number	333-187556
Entity Registrant Name	SUMMIT MATERIALS, LLC
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	26-4138486
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Central Index Key	0001571371
Amendment Flag	false
Current Fiscal Year End Date	--01-01
Document Fiscal Year Focus	2023
Document Fiscal Period Focus	Q1

Consolidated Balance Sheets - S

Consolidated Balance Sheets - Summit Materials Inc - USD ($) $ in Thousands	Apr. 01, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 379,457	$ 520,451
Accounts receivable, net	236,569	256,669
Costs and estimated earnings in excess of billings	14,387	6,510
Inventories	234,564	212,491
Other current assets	24,608	20,787
Current assets held for sale	1,305	1,468
Total current assets	890,890	1,018,376
Property, plant and equipment, less accumulated depreciation, depletion and amortization (April 1, 2023 - $1,311,037 and December 31, 2022 - $1,267,557)	1,867,412	1,813,702
Goodwill	1,159,525	1,132,546
Intangible assets, less accumulated amortization (April 1, 2023 - $16,428 and December 31, 2022 - $15,503)	70,485	71,384
Deferred tax assets, less valuation allowance (April 1, 2023 - $1,113 and December 31, 2022 - $1,113)	144,467	136,986
Operating lease right-of-use assets	36,638	37,889
Other assets	45,523	44,809
Total assets	4,214,940	4,255,692
Current liabilities:
Current portion of debt	5,096	5,096
Current portion of acquisition-related liabilities	7,243	13,718
Accounts payable	138,961	104,031
Accrued expenses	97,478	119,967
Current operating lease liabilities	7,515	7,296
Billings in excess of costs and estimated earnings	4,233	5,739
Total current liabilities	260,526	255,847
Long-term debt	1,487,783	1,488,569
Acquisition-related liabilities	22,939	29,051
Tax receivable agreement liability	322,624	327,812
Noncurrent operating lease liabilities	34,315	35,737
Other noncurrent liabilities	106,807	106,686
Total liabilities	2,234,994	2,243,702
Commitments and contingencies (see note 12)
Stockholders’ equity:
Additional paid-in capital	1,403,186	1,404,122
Accumulated earnings	560,091	590,895
Accumulated other comprehensive income	3,245	3,084
Stockholders’ equity	1,967,711	1,999,286
Noncontrolling interest in Summit Holdings	12,235	12,704
Total stockholders’ equity	1,979,946	2,011,990
Total liabilities and stockholders’ equity	4,214,940	4,255,692
Common Class A
Stockholders’ equity:
Common stock	1,189	1,185
Common Class B
Stockholders’ equity:
Common stock	$ 0	$ 0

Consolidated Balance Sheets -_2

Consolidated Balance Sheets - Summit Materials Inc (Parenthetical) - USD ($) $ in Thousands	Apr. 01, 2023	Dec. 31, 2022
Accumulated depreciation, depletion and amortization	$ 1,311,037	$ 1,267,557
Accumulated amortization	16,428	15,503
Valuation allowance	$ 1,113	$ 1,113
Common Class A
Common stock, par value (in usd per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	1,000,000,000	1,000,000,000
Common stock, shares issued (in shares)	118,818,671	118,408,655
Common stock, shares outstanding (in shares)	118,818,671	118,408,655
Common Class B
Common stock, par value (in usd per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	250,000,000	250,000,000
Common stock, shares issued (in shares)	99	99
Common stock, shares outstanding (in shares)		99

Consolidated Balance Sheets -_3

Consolidated Balance Sheets - Summit Materials LLC - USD ($) $ in Thousands	Apr. 01, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 379,457	$ 520,451
Accounts receivable, net	236,569	256,669
Cost and estimated earnings in excess of billings	14,387	6,510
Inventories	234,564	212,491
Other current assets	24,608	20,787
Current assets held for sale	1,305	1,468
Total current assets	890,890	1,018,376
Property, plant and equipment, net	1,867,412	1,813,702
Goodwill	1,159,525	1,132,546
Intangible assets, net	70,485	71,384
Operating lease right-of-use assets	36,638	37,889
Other assets	45,523	44,809
Total assets	4,214,940	4,255,692
Current liabilities:
Current portion of debt	5,096	5,096
Current portion of acquisition-related liabilities	7,243	13,718
Accounts payable	138,961	104,031
Accrued expenses	97,478	119,967
Current operating lease liabilities	7,515	7,296
Billings in excess of costs and estimated earnings	4,233	5,739
Total current liabilities	260,526	255,847
Long-term debt	1,487,783	1,488,569
Acquisition-related liabilities	22,939	29,051
Noncurrent operating lease liabilities	34,315	35,737
Other noncurrent liabilities	106,807	106,686
Total liabilities	2,234,994	2,243,702
Commitments and contingencies (see note 11)
Stockholders’ equity:
Accumulated earnings	560,091	590,895
Accumulated other comprehensive income	3,245	3,084
Total liabilities and stockholders’ equity	4,214,940	4,255,692
Summit Materials, LLC
Current assets:
Cash and cash equivalents	379,457	520,451
Accounts receivable, net	236,569	256,669
Cost and estimated earnings in excess of billings	14,387	6,510
Inventories	234,564	212,491
Other current assets	24,608	20,787
Current assets held for sale	1,305	1,468
Total current assets	890,890	1,018,376
Property, plant and equipment, net	1,867,412	1,813,702
Goodwill	1,160,525	1,133,546
Intangible assets, net	70,485	71,384
Operating lease right-of-use assets	36,638	37,889
Other assets	45,523	44,809
Total assets	4,071,473	4,119,706
Current liabilities:
Current portion of debt	5,096	5,096
Current portion of acquisition-related liabilities	7,243	13,718
Accounts payable	138,816	104,430
Accrued expenses	93,563	120,708
Current operating lease liabilities	7,515	7,296
Billings in excess of costs and estimated earnings	4,233	5,739
Total current liabilities	256,466	256,987
Long-term debt	1,487,783	1,488,569
Acquisition-related liabilities	22,939	29,051
Noncurrent operating lease liabilities	34,315	35,737
Other noncurrent liabilities	164,824	166,212
Total liabilities	1,966,327	1,976,556
Commitments and contingencies (see note 11)
Stockholders’ equity:
Members' equity	1,424,282	1,425,278
Accumulated earnings	702,037	739,248
Accumulated other comprehensive income	(21,173)	(21,376)
Total members' interest	2,105,146	2,143,150
Total liabilities and stockholders’ equity	$ 4,071,473	$ 4,119,706

Unaudited Consolidated Statemen

Unaudited Consolidated Statements of Operations - Summit Materials Inc - USD ($) $ in Thousands	3 Months Ended
	Apr. 01, 2023	Apr. 02, 2022
Revenue:
Revenue	$ 435,388	$ 420,947
Cost of revenue (excluding items shown separately below):
Total cost of revenue	354,037	353,380
General and administrative expenses	46,362	51,924
Depreciation, depletion, amortization and accretion	50,894	51,193
Gain on sale of property, plant and equipment	(430)	(1,255)
Operating (loss) income	(15,475)	(34,295)
Interest expense	27,420	20,149
Loss on debt financings	493	0
Gain on sale of businesses	0	(14,205)
Other income, net	(5,710)	(696)
(Loss) income from operation before taxes	(37,678)	(39,543)
Income tax benefit	(6,466)	(4,743)
Net loss	(31,212)	(34,800)
Net loss attributable to Summit Holdings	(408)	(508)
Net (loss) income attributable to Summit	$ (30,804)	$ (34,292)
Common Class A
Loss per share of Class A common stock:
Basic (in usd per share)	$ (0.26)	$ (0.28)
Diluted (in usd per share)	$ (0.26)	$ (0.28)
Weighted average shares of Class A common stock:
Basic (in shares)	118,564,556	120,756,555
Diluted (in shares)	118,679,656	120,916,680
Common Class A And Restricted Stock
Loss per share of Class A common stock:
Basic (in usd per share)	$ (0.26)	$ (0.28)
Weighted average shares of Class A common stock:
Basic (in shares)	118,679,656	120,916,680
Excluding delivery and subcontract revenue
Revenue:
Revenue	$ 407,270	$ 392,495
Cost of revenue (excluding items shown separately below):
Total cost of revenue	325,919	324,928
Product
Revenue:
Revenue	372,172	355,669
Cost of revenue (excluding items shown separately below):
Total cost of revenue	295,881	290,345
Service
Revenue:
Revenue	35,098	36,826
Cost of revenue (excluding items shown separately below):
Total cost of revenue	30,038	34,583
Delivery and subcontract revenue
Revenue:
Revenue	28,118	28,452
Cost of revenue (excluding items shown separately below):
Total cost of revenue	$ 28,118	$ 28,452

Unaudited Consolidated Statem_2

Unaudited Consolidated Statements of Operations - Summit Materials LLC - USD ($) $ in Thousands	3 Months Ended
	Apr. 01, 2023	Apr. 02, 2022
Revenue:
Revenue	$ 435,388	$ 420,947
Cost of revenue (excluding items shown separately below):
Total cost of revenue	354,037	353,380
General and administrative expenses	46,362	51,924
Depreciation, depletion, amortization and accretion	50,894	51,193
Gain on sale of property, plant and equipment	(430)	(1,255)
Operating (loss) income	(15,475)	(34,295)
Interest expense	27,420	20,149
Loss on debt financings	493	0
Gain on sale of businesses	0	(14,205)
Other income, net	(5,710)	(696)
(Loss) income from operation before taxes	(37,678)	(39,543)
Income tax (benefit) expense	(6,466)	(4,743)
Net (loss) income attributable to Summit	(30,804)	(34,292)
Summit Materials, LLC
Revenue:
Revenue	435,388	420,947
Cost of revenue (excluding items shown separately below):
Total cost of revenue	354,037	353,380
General and administrative expenses	46,362	51,924
Depreciation, depletion, amortization and accretion	50,894	51,193
Gain on sale of property, plant and equipment	(430)	(1,255)
Operating (loss) income	(15,475)	(34,295)
Interest expense	27,420	20,149
Loss on debt financings	493	0
Gain on sale of businesses	0	(14,205)
Other income, net	(5,710)	(696)
(Loss) income from operation before taxes	(37,678)	(39,543)
Income tax (benefit) expense	(467)	6,844
Net (loss) income attributable to Summit	(37,211)	(46,387)
Excluding delivery and subcontract revenue
Revenue:
Revenue	407,270	392,495
Cost of revenue (excluding items shown separately below):
Total cost of revenue	325,919	324,928
Excluding delivery and subcontract revenue | Summit Materials, LLC
Revenue:
Revenue	407,270	392,495
Cost of revenue (excluding items shown separately below):
Total cost of revenue	325,919	324,928
Product
Revenue:
Revenue	372,172	355,669
Cost of revenue (excluding items shown separately below):
Total cost of revenue	295,881	290,345
Product | Summit Materials, LLC
Revenue:
Revenue	372,172	355,669
Cost of revenue (excluding items shown separately below):
Total cost of revenue	295,881	290,345
Service
Revenue:
Revenue	35,098	36,826
Cost of revenue (excluding items shown separately below):
Total cost of revenue	30,038	34,583
Service | Summit Materials, LLC
Revenue:
Revenue	35,098	36,826
Cost of revenue (excluding items shown separately below):
Total cost of revenue	30,038	34,583
Delivery and subcontract revenue
Revenue:
Revenue	28,118	28,452
Cost of revenue (excluding items shown separately below):
Total cost of revenue	28,118	28,452
Delivery and subcontract revenue | Summit Materials, LLC
Revenue:
Revenue	28,118	28,452
Cost of revenue (excluding items shown separately below):
Total cost of revenue	$ 28,118	$ 28,452

Unaudited Consolidated Statem_3

Unaudited Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended
	Apr. 01, 2023	Apr. 02, 2022
Comprehensive income (loss)
Net loss	$ (31,212)	$ (34,800)
Other comprehensive income (loss):
Foreign currency translation adjustment	203	1,744
Less tax effect of other comprehensive loss items	(39)	(419)
Other comprehensive income	164	1,325
Comprehensive loss	(31,048)	(33,475)
Less comprehensive loss attributable to Summit Holdings	(405)	(489)
Comprehensive loss attributable to Summit Inc.	$ (30,643)	$ (32,986)

Unaudited Consolidated Statem_4

Unaudited Consolidated Statements of Comprehensive Income - Summit Materials LLC - USD ($) $ in Thousands	3 Months Ended
	Apr. 01, 2023	Apr. 02, 2022
Net loss	$ (31,212)	$ (34,800)
Other comprehensive income (loss):
Foreign currency translation adjustment	203	1,744
Comprehensive loss attributable to Summit Inc.	(30,643)	(32,986)
Summit Materials, LLC
Net loss	(37,211)	(46,387)
Other comprehensive income (loss):
Foreign currency translation adjustment	203	1,744
Comprehensive loss attributable to Summit Inc.	$ (37,008)	$ (44,643)

Unaudited Consolidated Statem_5

Unaudited Consolidated Statements of Cash Flows - Summit Materials Inc - USD ($) $ in Thousands	3 Months Ended
	Apr. 01, 2023	Apr. 02, 2022
Cash flows from operating activities:
Net loss	$ (31,212)	$ (34,800)
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, depletion, amortization and accretion	53,927	54,838
Share-based compensation expense	4,708	5,422
Net gain on asset and business disposals	(868)	(15,660)
Non-cash loss on debt financings	161	0
Change in deferred tax asset, net	(7,522)	(7,770)
Other	26	(221)
Decrease (increase) in operating assets, net of acquisitions and dispositions:
Accounts receivable, net	20,414	35,836
Inventories	(20,960)	(36,752)
Costs and estimated earnings in excess of billings	(7,868)	(6,449)
Other current assets	(3,748)	(1,891)
Other assets	2,239	1,183
(Decrease) increase in operating liabilities, net of acquisitions and dispositions:
Accounts payable	20,987	16,744
Accrued expenses	(27,968)	(25,946)
Billings in excess of costs and estimated earnings	(1,507)	317
Tax receivable agreement liability	(531)	0
Other liabilities	57	(1,564)
Net cash provided by (used in) operating activities	335	(16,713)
Cash flows from investing activities:
Acquisitions, net of cash acquired	(55,477)	0
Purchases of property, plant and equipment	(63,584)	(57,774)
Proceeds from the sale of property, plant and equipment	1,777	1,439
Proceeds from sale of businesses	0	47,821
Other	(1,045)	(857)
Net cash used in investing activities	(118,329)	(9,371)
Cash flows from financing activities:
Debt issuance costs	(1,566)	0
Payments on debt	(4,414)	(7,603)
Payments on acquisition-related liabilities	(11,374)	(11,397)
Repurchases of common stock	0	(47,509)
Proceeds from stock option exercises	15	27
Other	(5,719)	(1,180)
Net cash used in financing activities	(23,058)	(67,662)
Impact of foreign currency on cash	58	177
Net (decrease) increase in cash	(140,994)	(93,569)
Cash and cash equivalents—beginning of period	520,451	380,961
Cash and cash equivalents—end of period	$ 379,457	$ 287,392

Unaudited Consolidated Statem_6

Unaudited Consolidated Statements of Cash Flows - Summit Materials LLC - USD ($) $ in Thousands	3 Months Ended
	Apr. 01, 2023	Apr. 02, 2022
Cash flows from operating activities:
Net loss	$ (31,212)	$ (34,800)
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, depletion, amortization and accretion	53,927	54,838
Share-based compensation expense	4,708	5,422
Net gain on asset and business disposals	(868)	(15,660)
Non-cash loss on debt financings	161	0
Change in deferred tax liability, net	(7,522)	(7,770)
Other	26	(221)
Decrease (increase) in operating assets, net of acquisitions and dispositions:
Accounts receivable, net	20,414	35,836
Inventories	(20,960)	(36,752)
Costs and estimated earnings in excess of billings	(7,868)	(6,449)
Other current assets	(3,748)	(1,891)
Other assets	2,239	1,183
(Decrease) increase in operating liabilities, net of acquisitions and dispositions:
Accounts payable	20,987	16,744
Accrued expenses	(27,968)	(25,946)
Billings in excess of costs and estimated earnings	(1,507)	317
Other liabilities	57	(1,564)
Net cash provided by (used in) operating activities	335	(16,713)
Cash flows from investing activities:
Acquisitions, net of cash acquired	(55,477)	0
Purchases of property, plant and equipment	(63,584)	(57,774)
Proceeds from the sale of property, plant and equipment	1,777	1,439
Proceeds from sale of businesses	0	47,821
Payments for (Proceeds from) Other Investing Activities	(1,045)	(857)
Net cash used in investing activities	(118,329)	(9,371)
Cash flows from financing activities:
Debt issuance costs	(1,566)	0
Payments on debt	(4,414)	(7,603)
Payments on acquisition-related liabilities	(11,374)	(11,397)
Other	(5,719)	(1,180)
Net cash used in financing activities	(23,058)	(67,662)
Impact of foreign currency on cash	58	177
Net (decrease) increase in cash	(140,994)	(93,569)
Cash and cash equivalents—beginning of period	520,451	380,961
Cash and cash equivalents—end of period	379,457	287,392
Summit Materials, LLC
Cash flows from operating activities:
Net loss	(37,211)	(46,387)
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, depletion, amortization and accretion	53,927	54,838
Share-based compensation expense	4,708	5,422
Net gain on asset and business disposals	(868)	(15,660)
Non-cash loss on debt financings	161	0
Change in deferred tax liability, net	(1,510)	3,818
Other	26	(221)
Decrease (increase) in operating assets, net of acquisitions and dispositions:
Accounts receivable, net	20,414	35,836
Inventories	(20,960)	(36,752)
Costs and estimated earnings in excess of billings	(7,868)	(6,449)
Other current assets	(3,748)	(1,891)
Other assets	2,239	1,183
(Decrease) increase in operating liabilities, net of acquisitions and dispositions:
Accounts payable	20,443	16,744
Accrued expenses	(27,968)	(25,947)
Billings in excess of costs and estimated earnings	(1,507)	317
Other liabilities	57	(1,564)
Net cash provided by (used in) operating activities	335	(16,713)
Cash flows from investing activities:
Acquisitions, net of cash acquired	(55,477)	0
Purchases of property, plant and equipment	(63,584)	(57,774)
Proceeds from the sale of property, plant and equipment	1,777	1,439
Proceeds from sale of businesses	0	47,821
Payments for (Proceeds from) Other Investing Activities	(1,045)	(857)
Net cash used in investing activities	(118,329)	(9,371)
Cash flows from financing activities:
Capital (distributions to) contributions by member	15	(47,482)
Debt issuance costs	(1,566)	0
Payments on debt	(4,414)	(7,603)
Payments on acquisition-related liabilities	(11,374)	(11,397)
Other	(5,719)	(1,180)
Net cash used in financing activities	(23,058)	(67,662)
Impact of foreign currency on cash	58	177
Net (decrease) increase in cash	(140,994)	(93,569)
Cash and cash equivalents—beginning of period	520,451	380,961
Cash and cash equivalents—end of period	$ 379,457	$ 287,392

Unaudited Consolidated Statem_7

Unaudited Consolidated Statements of Changes in Stockholders’ Equity - Summit Materials Inc - USD ($) $ in Thousands	Total	Common Class A	Common Class B	Accumulated Earnings	Accumulated other comprehensive income (loss)	Common Stock Common Class A	Common Stock Common Class B	Additional Paid-in Capital	Noncontrolling Interest In Summit Holdings
Beginning balance at Jan. 01, 2022	$ 1,823,212			$ 478,956	$ 7,083	$ 1,188	$ 0	$ 1,326,340	$ 9,645
Beginning balance (in shares) at Jan. 01, 2022		120,684,322				118,705,108	99
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(34,800)			(34,292)					(508)
Other comprehensive income, net of tax	1,325				1,306				19
Stock option exercises (in shares)		1,589				1,589
Stock option exercises	27					$ 0		27
Share-based compensation	5,422							5,422
Repurchases of common stock	(47,509)			(47,494)		$ (15)		(121)	121
Repurchases of common stock, (in shares)						(1,506,878)
Shares redeemed to settle taxes and other (in shares)		842,029				842,029
Shares redeemed to settle taxes and other	(1,180)					$ 8		(1,120)	(68)
Ending balance at Apr. 02, 2022	1,746,497			397,170	8,389	$ 1,181	$ 0	1,330,548	9,209
Ending balance (in shares) at Apr. 02, 2022		120,021,062				118,041,848	99
Beginning balance at Dec. 31, 2022	2,011,990			590,895	3,084	$ 1,185	$ 0	1,404,122	12,704
Beginning balance (in shares) at Dec. 31, 2022		118,408,655	99			118,408,655	99
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(31,212)			(30,804)					(408)
LP Unit exchanges (in shares)		2,000				2,000
LP Unit exchanges	0							21	(21)
Other comprehensive income, net of tax	164				161				3
Stock option exercises (in shares)		902				902
Stock option exercises	15							15
Share-based compensation	4,708							4,708
Repurchases of common stock		$ (149,000)
Shares redeemed to settle taxes and other (in shares)		407,114				407,114
Shares redeemed to settle taxes and other	(5,719)					$ 4		(5,680)	(43)
Ending balance at Apr. 01, 2023	$ 1,979,946			$ 560,091	$ 3,245	$ 1,189	$ 0	$ 1,403,186	$ 12,235
Ending balance (in shares) at Apr. 01, 2023		118,818,671	99			118,818,671	99

Unaudited Consolidated Statem_8

Unaudited Consolidated Statements of Changes in Members' Interest - Summit Materials LLC - USD ($) $ in Thousands	3 Months Ended
	Apr. 01, 2023	Apr. 02, 2022
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	$ (31,212)	$ (34,800)
Other comprehensive loss	164	1,325
Share-based compensation	4,708	5,422
Shares redeemed to settle taxes and other	(5,719)	(1,180)
Summit Materials, LLC
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	2,143,150	1,884,944
Net contributed capital	15	(47,482)
Net loss	(37,211)	(46,387)
Other comprehensive loss	203	1,744
Share-based compensation	4,708	5,422
Shares redeemed to settle taxes and other	(5,719)	(1,180)
Ending balance	2,105,146	1,797,061
Members' equity | Summit Materials, LLC
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	1,425,278	1,507,859
Net contributed capital	15	(47,482)
Share-based compensation	4,708	5,422
Shares redeemed to settle taxes and other	(5,719)	(1,180)
Ending balance	1,424,282	1,464,619
Accumulated earnings
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(30,804)	(34,292)
Accumulated earnings | Summit Materials, LLC
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	739,248	393,111
Net loss	(37,211)	(46,387)
Ending balance	702,037	346,724
Accumulated other comprehensive income (loss)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Other comprehensive loss	161	1,306
Accumulated other comprehensive income (loss) | Summit Materials, LLC
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	(21,376)	(16,026)
Other comprehensive loss	203	1,744
Ending balance	$ (21,173)	$ (14,282)

Consolidated Balance Sheets -_4

Consolidated Balance Sheets - Summit Materials LLC (Parenthetical) - USD ($) $ in Thousands	Apr. 01, 2023	Dec. 31, 2022
Accumulated depreciation, depletion and amortization	$ 1,311,037	$ 1,267,557
Accumulated amortization	16,428	15,503
Summit Materials, LLC
Accumulated depreciation, depletion and amortization	1,311,037	1,267,557
Accumulated amortization	$ 16,428	$ 15,503

SUMMARY OF ORGANIZATION AND SIG

SUMMARY OF ORGANIZATION AND SIGNIFICANT ACCOUNTING POLICIES	3 Months Ended
	Apr. 01, 2023
Summary Of Significant Accounting Policies And Recent Accounting Pronouncements [Line Items]
SUMMARY OF ORGANIZATION AND SIGNIFICANT ACCOUNTING POLICIES	SUMMARY OF ORGANIZATION AND SIGNIFICANT ACCOUNTING POLICIES Summit Materials, Inc. (“Summit Inc.” and, together with its subsidiaries, “Summit,” “we,” “us,” “our” or the “Company”) is a vertically-integrated construction materials company. The Company is engaged in the production and sale of aggregates, cement, ready-mix concrete, asphalt paving mix and concrete products and owns and operates quarries, sand and gravel pits, two cement plants, cement distribution terminals, ready-mix concrete plants, asphalt plants and landfill sites. It is also engaged in paving and related services. The Company’s three operating and reporting segments are the West, East and Cement segments. Substantially all of the Company’s construction materials, products and services are produced, consumed and performed outdoors, primarily in the spring, summer and fall. Seasonal changes and other weather-related conditions can affect the production and sales volumes of its products and delivery of services. Therefore, the financial results for any interim period are typically not indicative of the results expected for the full year. Furthermore, the Company’s sales and earnings are sensitive to national, regional and local economic conditions, weather conditions and to cyclical changes in construction spending, among other factors. Summit Inc. is a holding corporation operating and controlling all of the business and affairs of Summit Materials Holdings L.P. (“Summit Holdings”) and its subsidiaries, and through Summit Holdings conducts its business. Summit Inc. owns the majority of the partnership interests of Summit Holdings (see Note 9, Stockholders’ Equity). Summit Materials, LLC (“Summit LLC”), an indirect wholly owned subsidiary of Summit Holdings, conducts the majority of our operations. Summit Materials Finance Corp. (“Summit Finance”), an indirect wholly owned subsidiary of Summit LLC, has jointly issued our Senior Notes as described below. Basis of Presentation —These unaudited consolidated financial statements were prepared in accordance with U.S. generally accepted accounting principles (“U.S. GAAP”) for interim financial information, without audit, pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”). Certain information and footnote disclosures typically included in financial statements prepared in accordance with U.S. GAAP have been condensed or omitted pursuant to such rules and regulations. These unaudited consolidated financial statements should be read in conjunction with the Company's audited consolidated financial statements and the notes thereto as of and for the year ended December 31, 2022. The Company continues to follow the accounting policies set forth in those audited consolidated financial statements. Management believes that these consolidated interim financial statements include all adjustments, normal and recurring in nature, that are necessary to present fairly the financial position of the Company as of April 1, 2023, the results of operations for the three months ended April 1, 2023 and April 2, 2022 and cash flows for the three months ended April 1, 2023 and April 2, 2022. Principles of Consolidation —The consolidated financial statements include the accounts of Summit Inc. and its majority owned subsidiaries. All intercompany balances and transactions have been eliminated. For a summary of the changes in Summit Inc.’s ownership of Summit Holdings, see Note 9, Stockholders’ Equity. Use of Estimates —Preparation of these consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions. These estimates and the underlying assumptions affect the amounts of assets and liabilities reported, disclosures about contingent assets and liabilities and reported amounts of revenue and expenses. Such estimates include the valuation of accounts receivable, inventories, valuation of deferred tax assets, goodwill, intangibles and other long-lived assets, tax receivable agreement ("TRA") liability, pension and other postretirement obligations and asset retirement obligations. Estimates also include revenue earned on contracts and costs to complete contracts. Most of the Company’s paving and related services are performed under fixed unit-price contracts with state and local governmental entities. Management regularly evaluates its estimates and assumptions based on historical experience and other factors, including the current economic environment. As future events and their effects cannot be determined with precision, actual results can differ significantly from estimates made. Changes in estimates, including those resulting from continuing changes in the economic environment, are reflected in the Company’s consolidated financial statements when the change in estimate occurs. Business and Credit Concentrations— The Company’s operations are conducted primarily across 20 U.S. states and in British Columbia, Canada, with the most significant revenue generated in Texas, Utah, Kansas and Missouri. The Company’s accounts receivable consist primarily of amounts due from customers within these areas. Therefore, collection of these accounts is dependent on the economic conditions in the aforementioned states, as well as specific situations affecting individual customers. Credit granted within the Company’s trade areas has been granted to many customers, and management does not believe that a significant concentration of credit exists with respect to any individual customer or group of customers. No single customer accounted for more than 10% of the Company’s total revenue in the three months ended April 1, 2023 or April 2, 2022. Revenue Recognition— We earn revenue from the sale of products, which primarily include aggregates, cement, ready-mix concrete and asphalt, but also include concrete products and plastics components, and from the provision of services, which are primarily paving and related services, but also include landfill operations, the receipt and disposal of waste that is converted to fuel for use in our cement plants. Products: Revenue for product sales is recognized when the performance obligation is satisfied, which generally is when the product is shipped. Services: We earn revenue from the provision of services, which are primarily paving and related services, which are typically calculated using monthly progress based on a method similar to percentage of completion or a customer’s engineer review of progress. The majority of our construction service contracts are completed within one year, but may occasionally extend beyond this time frame. The majority of our construction service contracts are for work that occurs mostly during the spring, summer and fall. We generally measure progress toward completion on long-term paving and related services contracts based on the proportion of costs incurred to date relative to total estimated costs at completion. Estimating costs to be incurred for revenue recognition involves the use of various estimating techniques to project costs at completion, and in some cases includes estimates of recoveries asserted against the customer for changes in specifications or other disputes. Earnings per Share— The Company computes basic earnings per share attributable to stockholders by dividing income attributable to Summit Inc. by the weighted-average shares of Class A common stock outstanding. Diluted earnings per share reflects the potential dilution beyond shares for basic earnings per share that could occur if securities or other contracts to issue common stock were exercised, converted into common stock, or resulted in the issuance of common stock that would have shared in the Company’s earnings. Since the Class B common stock has no economic value, those shares are not included in the weighted-average common share amount for basic or diluted earnings per share. In addition, as the shares of Class A common stock are issued by Summit Inc., the earnings and equity interests of noncontrolling interests are not included in basic earnings per share.
Summit Materials, LLC
Summary Of Significant Accounting Policies And Recent Accounting Pronouncements [Line Items]
SUMMARY OF ORGANIZATION AND SIGNIFICANT ACCOUNTING POLICIES	SUMMARY OF ORGANIZATION AND SIGNIFICANT ACCOUNTING POLICIES Summit Materials, LLC (“Summit LLC” and, together with its subsidiaries, “Summit,” “we,” “us,” “our” or the “Company”) is a vertically-integrated construction materials company. The Company is engaged in the production and sale of aggregates, cement, ready-mix concrete, asphalt paving mix and concrete products and owns and operates quarries, sand and gravel pits, two cement plants, cement distribution terminals, ready-mix concrete plants, asphalt plants and landfill sites. It is also engaged in paving and related services. The Company’s three operating and reporting segments are the West, East and Cement segments. Substantially all of the Company’s construction materials, products and services are produced, consumed and performed outdoors, primarily in the spring, summer and fall. Seasonal changes and other weather-related conditions can affect the production and sales volumes of its products and delivery of services. Therefore, the financial results for any interim period are typically not indicative of the results expected for the full year. Furthermore, the Company’s sales and earnings are sensitive to national, regional and local economic conditions, weather conditions and to cyclical changes in construction spending, among other factors. Summit LLC is a wholly owned indirect subsidiary of Summit Materials Holdings L.P. (“Summit Holdings”), whose primary owner is Summit Materials, Inc. (“Summit Inc.”). Summit Inc. was formed as a Delaware corporation on September 23, 2014. Its sole material asset is a controlling equity interest in Summit Holdings. Pursuant to a reorganization into a holding company structure (the “Reorganization”) consummated in connection with Summit Inc.’s March 2015 initial public offering, Summit Inc. became a holding corporation operating and controlling all of the business and affairs of Summit Holdings and its subsidiaries, including Summit LLC. Basis of Presentation —These unaudited consolidated financial statements were prepared in accordance with U.S. generally accepted accounting principles (“U.S. GAAP”) for interim financial information, without audit, pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”). Certain information and footnote disclosures typically included in financial statements prepared in accordance with U.S. GAAP have been condensed or omitted pursuant to such rules and regulations. These unaudited consolidated financial statements should be read in conjunction with the Company’s audited consolidated financial statements and the notes thereto as of and for the year ended December 31, 2022. The Company continues to follow the accounting policies set forth in those audited consolidated financial statements. Management believes that these consolidated interim financial statements include all adjustments, normal and recurring in nature, that are necessary to present fairly the financial position of the Company as of April 1, 2023, the results of operations for the three months ended April 1, 2023 and April 2, 2022 and cash flows for the three months ended April 1, 2023 and April 2, 2022. Use of Estimates —Preparation of these consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions. These estimates and the underlying assumptions affect the amounts of assets and liabilities reported, disclosures about contingent assets and liabilities and reported amounts of revenue and expenses. Such estimates include the valuation of accounts receivable, inventories, valuation of deferred tax assets, goodwill, intangibles and other long-lived assets, pension and other postretirement obligations and asset retirement obligations. Estimates also include revenue earned on contracts and costs to complete contracts. Most of the Company’s paving and related services are performed under fixed unit-price contracts with state and local governmental entities. Management regularly evaluates its estimates and assumptions based on historical experience and other factors, including the current economic environment. As future events and their effects cannot be determined with precision, actual results can differ significantly from estimates made. Changes in estimates, including those resulting from continuing changes in the economic environment, are reflected in the Company’s consolidated financial statements when the change in estimate occurs. Business and Credit Concentrations— The Company’s operations are conducted primarily across 20 U.S. states and in British Columbia, Canada, with the most significant revenue generated in Texas, Utah, Kansas and Missouri. The Company’s accounts receivable consist primarily of amounts due from customers within these areas. Therefore, collection of these accounts is dependent on the economic conditions in the aforementioned states, as well as specific situations affecting individual customers. Credit granted within the Company’s trade areas has been granted to many customers, and management does not believe that a significant concentration of credit exists with respect to any individual customer or group of customers. No single customer accounted for more than 10% of the Company’s total revenue in the three months ended April 1, 2023 or April 2, 2022. Revenue Recognition— We earn revenue from the sale of products, which primarily include aggregates, cement, ready-mix concrete and asphalt, but also include concrete products and plastics components, and from the provision of services, which are primarily paving and related services, but also include landfill operations, the receipt and disposal of waste that is converted to fuel for use in our cement plants. Products: Revenue for product sales is recognized when the performance obligation is satisfied, which generally is when the product is shipped. Services: We earn revenue from the provision of services, which are primarily paving and related services, which are typically calculated using monthly progress based on a method similar to percentage of completion or a customer’s engineer review of progress. The majority of our construction service contracts are completed within one year, but may occasionally extend beyond this time frame. The majority of our construction service contracts are for work that occurs mostly during the spring, summer and fall. We generally measure progress toward completion on long-term paving and related services contracts based on the proportion of costs incurred to date relative to total estimated costs at completion. Estimating costs to be incurred for revenue recognition involves the use of various estimating techniques to project costs at completion, and in some cases includes estimates of recoveries asserted against the customer for changes in specifications or other disputes.

ACQUISITIONS, DISPOSTIONS, GOOD

ACQUISITIONS, DISPOSTIONS, GOODWILL AND INTANGIBLES	3 Months Ended
	Apr. 01, 2023
Business Acquisition [Line Items]
ACQUISITIONS, DISPOSTIONS, GOODWILL AND INTANGIBLES	ACQUISITIONS, DISPOSITIONS, GOODWILL AND INTANGIBLES The Company has completed numerous acquisitions since its formation, which have been financed through a combination of debt and equity funding and available cash. The operations of each acquisition have been included in the Company’s consolidated results of operations since the respective closing dates of the acquisitions. The Company measures all assets acquired and liabilities assumed at their acquisition-date fair value. Goodwill acquired during a business combination has an indefinite life and is not amortized. The following table summarizes the Company’s acquisitions by region and period: Three months ended Year ended April 1, 2023 December 31, 2022 West 1 — East — 2 The purchase price allocation, primarily the valuation of property, plant and equipment for the acquisitions completed during the three months ended April 1, 2023, as well as the acquisitions completed during 2022 that occurred after April 2, 2022, have not yet been finalized due to the recent timing of the acquisitions, status of the valuation of property, plant and equipment and finalization of related tax returns. The following table summarizes aggregated information regarding the fair values of the assets acquired and liabilities assumed as of the respective acquisition dates: Three months ended Year ended April 1, 2023 December 31, 2022 Financial assets $ 804 $ 297 Inventories 1,107 161 Property, plant and equipment 27,170 30,041 Other assets 91 1,116 Financial liabilities (59) (1,120) Other long-term liabilities (138) (1,589) Net assets acquired 28,975 28,906 Goodwill 26,910 — Purchase price 55,885 28,906 Acquisition-related liabilities — (6,176) Other (408) — Net cash paid for acquisitions $ 55,477 $ 22,730 Changes in the carrying amount of goodwill, by reportable segment, from December 31, 2022 to April 1, 2023 are summarized as follows: West East Cement Total Balance—December 31, 2022 $ 566,389 $ 361,501 $ 204,656 $ 1,132,546 Acquisitions (1) 26,910 — — 26,910 Foreign currency translation adjustments 69 — — 69 Balance—April 1, 2023 $ 593,368 $ 361,501 $ 204,656 $ 1,159,525 _______________________________________________________________________ (1) Reflects goodwill from 2023 acquisitions. The Company’s intangible assets subject to amortization are primarily composed of operating permits, mineral lease agreements and reserve rights. Operating permits relate to permitting and zoning rights acquired outside of a business combination. The assets related to mineral lease agreements reflect the submarket royalty rates paid under agreements, primarily for extracting aggregates. The values were determined as of the respective acquisition dates by a comparison of market-royalty rates. The reserve rights relate to aggregate reserves to which the Company has certain rights of ownership, but does not own the reserves. The intangible assets are amortized on a straight-line basis over the lives of the leases or permits. The following table shows intangible assets by type and in total: April 1, 2023 December 31, 2022 Gross Accumulated Net Gross Accumulated Net Operating permits $ 38,677 $ (4,498) $ 34,179 $ 38,677 $ (4,109) $ 34,568 Mineral leases 17,766 (7,005) 10,761 18,091 (7,056) 11,035 Reserve rights 25,586 (4,402) 21,184 25,242 (3,872) 21,370 Other 4,884 (523) 4,361 4,877 (466) 4,411 Total intangible assets $ 86,913 $ (16,428) $ 70,485 $ 86,887 $ (15,503) $ 71,384 Amortization expense totaled $0.9 million and $0.9 million for the three months ended April 1, 2023 and April 2, 2022, respectively. The estimated amortization expense for the intangible assets for each of the five years subsequent to April 1, 2023 is as follows: 2023 (nine months) $ 2,984 2024 3,987 2025 3,945 2026 3,897 2027 3,884 2028 3,887 Thereafter 47,901 Total $ 70,485
Summit Materials, LLC
Business Acquisition [Line Items]
ACQUISITIONS, DISPOSTIONS, GOODWILL AND INTANGIBLES	ACQUISITIONS, DISPOSITIONS, GOODWILL AND INTANGIBLES The Company has completed numerous acquisitions since its formation, which have been financed through a combination of debt and equity funding and available cash. The operations of each acquisition have been included in the Company’s consolidated results of operations since the respective closing dates of the acquisitions. The Company measures all assets acquired and liabilities assumed at their acquisition-date fair value. Goodwill acquired during a business combination has an indefinite life and is not amortized. The following table summarizes the Company’s acquisitions by region and period: Three months ended Year ended April 1, 2023 December 31, 2022 West 1 — East — 2 The purchase price allocation, primarily the valuation of property, plant and equipment for the acquisitions completed during the three months ended April 1, 2023, as well as the acquisitions completed during 2022 that occurred after April 2, 2022, have not yet been finalized due to the recent timing of the acquisitions, status of the valuation of property, plant and equipment and finalization of related tax returns. The following table summarizes aggregated information regarding the fair values of the assets acquired and liabilities assumed as of the respective acquisition dates: Three months ended Year ended April 1, 2023 December 31, 2022 Financial assets $ 804 $ 297 Inventories 1,107 161 Property, plant and equipment 27,170 30,041 Other assets 91 1,116 Financial liabilities (59) (1,120) Other long-term liabilities (138) (1,589) Net assets acquired 28,975 28,906 Goodwill 26,910 — Purchase price 55,885 28,906 Acquisition-related liabilities — (6,176) Other (408) — Net cash paid for acquisitions $ 55,477 $ 22,730 Changes in the carrying amount of goodwill, by reportable segment, from December 31, 2022 to April 1, 2023 are summarized as follows: West East Cement Total Balance—December 31, 2022 $ 567,389 $ 361,501 $ 204,656 $ 1,133,546 Acquisitions (1) 26,910 — — 26,910 Foreign currency translation adjustments 69 — — 69 Balance—April 1, 2023 $ 594,368 $ 361,501 $ 204,656 $ 1,160,525 _______________________________________________________________________ (1) Reflects goodwill from 2023 acquisitions. The Company’s intangible assets subject to amortization are primarily composed of operating permits, mineral lease agreements and reserve rights. Operating permits relate to permitting and zoning rights acquired outside of a business combination. The assets related to mineral lease agreements reflect the submarket royalty rates paid under agreements, primarily for extracting aggregates. The values were determined as of the respective acquisition dates by a comparison of market-royalty rates. The reserve rights relate to aggregate reserves to which the Company has certain rights of ownership, but does not own the reserves. The intangible assets are amortized on a straight-line basis over the lives of the leases or permits. The following table shows intangible assets by type and in total: April 1, 2023 December 31, 2022 Gross Accumulated Net Gross Accumulated Net Operating permits $ 38,677 $ (4,498) $ 34,179 $ 38,677 $ (4,109) $ 34,568 Mineral leases 17,766 (7,005) 10,761 18,091 (7,056) 11,035 Reserve rights 25,586 (4,402) 21,184 25,242 (3,872) 21,370 Other 4,884 (523) 4,361 4,877 (466) 4,411 Total intangible assets $ 86,913 $ (16,428) $ 70,485 $ 86,887 $ (15,503) $ 71,384 Amortization expense totaled $0.9 million and $0.9 million for the three months ended April 1, 2023 and April 2, 2022, respectively. The estimated amortization expense for the intangible assets for each of the five years subsequent to April 1, 2023 is as follows: 2023 (nine months) $ 2,984 2024 3,987 2025 3,945 2026 3,897 2027 3,884 2028 3,887 Thereafter 47,901 Total $ 70,485

REVENUE RECOGNITION

REVENUE RECOGNITION	3 Months Ended
	Apr. 01, 2023
Revenue from External Customer [Line Items]
REVENUE RECOGNITION	REVENUE RECOGNITION We derive our revenue predominantly by selling construction materials, products and providing paving and related services. Construction materials consist of aggregates and cement. Products consist of related downstream products, including ready-mix concrete, asphalt paving mix and concrete products. Paving and related service revenue is generated primarily from the asphalt paving services that we provide. Revenue by product for the three months ended April 1, 2023 and April 2, 2022 is as follows: Three months ended April 1, 2023 April 2, 2022 Revenue by product*: Aggregates $ 143,653 $ 123,393 Cement 49,013 42,554 Ready-mix concrete 138,778 157,563 Asphalt 26,635 17,138 Paving and related services 27,184 30,610 Other 50,125 49,689 Total revenue $ 435,388 $ 420,947 *Revenue from liquid asphalt terminals is included in asphalt revenue. Accounts receivable, net consisted of the following as of April 1, 2023 and December 31, 2022: April 1, 2023 December 31, 2022 Trade accounts receivable $ 222,479 $ 215,766 Construction contract receivables 12,243 37,067 Retention receivables 9,428 11,048 Accounts receivable 244,150 263,881 Less: Allowance for doubtful accounts (7,581) (7,212) Accounts receivable, net $ 236,569 $ 256,669 Retention receivables are amounts earned by the Company but held by customers until paving and related service contracts and projects are near completion or fully completed. Amounts are generally billed and collected within one year.
Summit Materials, LLC
Revenue from External Customer [Line Items]
REVENUE RECOGNITION	REVENUE RECOGNITION We derive our revenue predominantly by selling construction materials, products and providing paving and related services. Construction materials consist of aggregates and cement. Products consist of related downstream products, including ready-mix concrete, asphalt paving mix and concrete products. Paving and related service revenue is generated primarily from the asphalt paving services that we provide. Revenue by product for the three months ended April 1, 2023 and April 2, 2022 is as follows: Three months ended April 1, 2023 April 2, 2022 Revenue by product*: Aggregates $ 143,653 $ 123,393 Cement 49,013 42,554 Ready-mix concrete 138,778 157,563 Asphalt 26,635 17,138 Paving and related services 27,184 30,610 Other 50,125 49,689 Total revenue $ 435,388 $ 420,947 *Revenue from liquid asphalt terminals is included in asphalt revenue. Accounts receivable, net consisted of the following as of April 1, 2023 and December 31, 2022: April 1, 2023 December 31, 2022 Trade accounts receivable $ 222,479 $ 215,766 Construction contract receivables 12,243 37,067 Retention receivables 9,428 11,048 Accounts receivable 244,150 263,881 Less: Allowance for doubtful accounts (7,581) (7,212) Accounts receivable, net $ 236,569 $ 256,669 Retention receivables are amounts earned by the Company but held by customers until paving and related service contracts and projects are near completion or fully completed. Amounts are generally billed and collected within one year.

INVENTORIES

INVENTORIES	3 Months Ended
	Apr. 01, 2023
Inventory [Line Items]
INVENTORIES	INVENTORIES Inventories consisted of the following as of April 1, 2023 and December 31, 2022: April 1, 2023 December 31, 2022 Aggregate stockpiles $ 152,276 $ 148,347 Finished goods 51,884 33,622 Work in process 7,754 8,191 Raw materials 22,650 22,331 Total $ 234,564 $ 212,491
Summit Materials, LLC
Inventory [Line Items]
INVENTORIES	INVENTORIES Inventories consisted of the following as of April 1, 2023 and December 31, 2022: April 1, 2023 December 31, 2022 Aggregate stockpiles $ 152,276 $ 148,347 Finished goods 51,884 33,622 Work in process 7,754 8,191 Raw materials 22,650 22,331 Total $ 234,564 $ 212,491

ACCRUED EXPENSES

ACCRUED EXPENSES	3 Months Ended
	Apr. 01, 2023
Schedule Of Accrued Expenses [Line Items]
ACCRUED EXPENSES	ACCRUED EXPENSES Accrued expenses consisted of the following as of April 1, 2023 and December 31, 2022: April 1, 2023 December 31, 2022 Interest $ 11,064 $ 24,625 Payroll and benefits 20,447 34,485 Finance lease obligations 4,224 6,959 Insurance 19,713 18,127 Current portion of TRA liability and non-income taxes 9,536 4,360 Deferred asset purchase payments 5,287 5,131 Professional fees 2,053 924 Other (1) 25,154 25,356 Total $ 97,478 $ 119,967 (1) Consists primarily of current portion of asset retirement obligations and miscellaneous accruals.
Summit Materials, LLC
Schedule Of Accrued Expenses [Line Items]
ACCRUED EXPENSES	ACCRUED EXPENSES Accrued expenses consisted of the following as of April 1, 2023 and December 31, 2022: April 1, 2023 December 31, 2022 Interest $ 11,064 $ 24,625 Payroll and benefits 20,447 34,485 Finance lease obligations 4,224 6,959 Insurance 19,713 18,127 Non-income taxes 5,621 5,101 Deferred asset purchase payments 5,287 5,131 Professional fees 2,053 924 Other (1) 25,154 25,356 Total $ 93,563 $ 120,708 _______________________________________________________________________ (1) Consists primarily of current portion of asset retirement obligations and miscellaneous accruals.

DEBT

DEBT	3 Months Ended
	Apr. 01, 2023
Debt Instrument [Line Items]
DEBT	DEBT Debt consisted of the following as of April 1, 2023 and December 31, 2022: April 1, 2023 December 31, 2022 Term Loan, due 2027: $508.3 million and $509.6 million, net of $4.8 million and $5.0 million discount at April 1, 2023 and December 31, 2022, respectively $ 503,530 $ 504,549 6 1 ⁄ 2 % Senior Notes, due 2027 300,000 300,000 5 1 ⁄ 4 % Senior Notes, due 2029 700,000 700,000 Total 1,503,530 1,504,549 Current portion of long-term debt 5,096 5,096 Long-term debt $ 1,498,434 $ 1,499,453 The contractual payments of long-term debt, including current maturities, for the five years subsequent to April 1, 2023, are as follows: 2023 (nine months) $ 3,822 2024 3,822 2025 6,369 2026 5,096 2027 789,177 2028 — Thereafter 700,000 Total 1,508,286 Less: Original issue net discount (4,756) Less: Capitalized loan costs (10,651) Total debt $ 1,492,879 Senior Notes — On August 11, 2020, Summit LLC and Summit Finance (together, the “Issuers”) issued $700.0 million in aggregate principal amount of 5.250% senior notes due January 15, 2029 (the “2029 Notes”). The 2029 Notes were issued at 100.0% of their par value with proceeds of $690.4 million, net of related fees and expenses. The 2029 Notes were issued under an indenture dated August 11, 2020 (the "2029 Notes Indenture"). The 2029 Notes Indenture contains covenants limiting, among other things, Summit LLC and its restricted subsidiaries’ ability to incur additional indebtedness or issue certain preferred shares, pay dividends, redeem stock or make other distributions, make certain investments, sell or transfer certain assets, create liens, consolidate, merge, sell or otherwise dispose of all or substantially all of its assets, enter into certain transactions with affiliates, and designate subsidiaries as unrestricted subsidiaries. The 2029 Notes Indenture also contains customary events of default. Interest on the 2029 Notes is payable semi-annually on January 15 and July 15 of each year commencing on January 15, 2021. On March 15, 2019, the Issuers issued $300.0 million in aggregate principal amount of 6.500% senior notes due March 15, 2027 (the “2027 Notes”). The 2027 Notes were issued at 100.0% of their par value with proceeds of $296.3 million, net of related fees and expenses. The 2027 Notes were issued under an indenture dated March 25, 2019, the terms of which are generally consistent with the 2029 Notes Indenture. Interest on the 2027 Notes is payable semi-annually on March 15 and September 15 of each year commencing on September 15, 2019. As of April 1, 2023 and December 31, 2022, the Company was in compliance with all covenants under the applicable indentures. Senior Secured Credit Facilities — Summit LLC has credit facilities that provide for term loans in an aggregate amount of $508.3 million and revolving credit commitments in an aggregate amount of $395.0 million (the “Senior Secured Credit Facilities”). Under the Senior Secured Credit Facilities, required principal repayments of 0.25% of the refinanced aggregate amount of term debt are due on the last business day of each March, June, September and December commencing with the March 2023 payment. The interest rate on the term loan is a variable rate, it was 8.49% as of April 1, 2023. In 2022, the Company repaid $95.6 million of its term loan under provisions related to divestitures of businesses. On December 14, 2022, Summit Materials, LLC entered into Amendment No. 5 to the credit agreement governing the Senior Secured Credit Facilities (the “Credit Agreement”), which among other things, (a) refinanced the existing $509.6 million of existing term loans with new term loans under the Term Loan Facility bearing interest, at Summit LLC’s option, based on either the base rate or Term Secured Overnight Financing Rate ("SOFR") rate and an applicable margin of (i) 2.00% per annum with respect to base rate borrowings and a floor of 1.00% per annum or (ii) 3.00% per annum with respect to Term SOFR borrowings, with a SOFR adjustment of 0.10% per annum and a floor of zero, and (b) extended the maturity date to December 14, 2027. On January 10, 2023, Summit Materials, LLC entered into Amendment No. 6 to the Credit Agreement, which among other things, increased the maximum amount available to $395.0 million and extended the maturity date to January 10, 2028. The revolving credit agreement bears interest per annum equal to a Term SOFR Rate with a SOFR adjustment of 0.10% per annum and a floor of zero. There were no outstanding borrowings under the revolving credit facility as of April 1, 2023 and December 31, 2022, with borrowing capacity of $373.9 million remaining as of April 1, 2023, which is net of $21.1 million of outstanding letters of credit. The outstanding letters of credit are renewed annually and support required bonding on construction projects, large leases, workers compensation claims and the Company’s insurance liabilities. Summit LLC’s Consolidated First Lien Net Leverage Ratio, as such term is defined in the Credit Agreement, should be no greater than 4.75:1.0 as of each quarter-end. As of April 1, 2023 and December 31, 2022, Summit LLC was in compliance with all financial covenants. Summit LLC’s wholly-owned domestic subsidiary companies, subject to certain exclusions and exceptions, are named as subsidiary guarantors of the Senior Notes and the Senior Secured Credit Facilities. In addition, Summit LLC has pledged substantially all of its assets as collateral, subject to certain exclusions and exceptions, for the Senior Secured Credit Facilities. The following table presents the activity for the deferred financing fees for the three months ended April 1, 2023 and April 2, 2022: Deferred financing fees Balance—December 31, 2022 $ 11,489 Loan origination fees 1,566 Amortization (616) Write off of deferred financing fees (160) Balance—April 1, 2023 $ 12,279 Balance—January 1, 2022 $ 13,049 Amortization (692) Balance—April 2, 2022 $ 12,357 Other —On January 15, 2015, the Company’s wholly-owned subsidiary in British Columbia, Canada entered into an agreement with HSBC Bank Canada, which was amended on November 30, 2020, for a (i) $6.0 million Canadian dollar (“CAD”) revolving credit commitment to be used for operating activities that bears interest per annum equal to the bank’s prime rate plus 0.20%, (ii) $0.5 million CAD revolving credit commitment to be used for capital equipment that bears interest per annum at the bank’s prime rate plus 0.20% and (iii) $1.5 million CAD revolving credit commitment to provide guarantees on behalf of that subsidiary and (iv) $10.0 million CAD revolving foreign exchange facility available to purchase foreign exchange forward contracts. There were no amounts outstanding under this agreement as of April 1, 2023 or December 31, 2022, which may be terminated upon demand.
Summit Materials, LLC
Debt Instrument [Line Items]
DEBT	DEBT Debt consisted of the following as of April 1, 2023 and December 31, 2022: April 1, 2023 December 31, 2022 Term Loan, due 2027: $508.3 million and $509.6 million, net of $4.8 million and $5.0 million discount at April 1, 2023 and December 31, 2022, respectively $ 503,530 $ 504,549 6 1/2 % Senior Notes, due 2027 300,000 300,000 5 1/4 % Senior Notes, due 2029 700,000 700,000 Total 1,503,530 1,504,549 Current portion of long-term debt 5,096 5,096 Long-term debt $ 1,498,434 $ 1,499,453 The contractual payments of long-term debt, including current maturities, for the five years subsequent to April 1, 2023, are as follows: 2023 (nine months) $ 3,822 2024 3,822 2025 6,369 2026 5,096 2027 789,177 2028 — Thereafter 700,000 Total 1,508,286 Less: Original issue net discount (4,756) Less: Capitalized loan costs (10,651) Total debt $ 1,492,879 Senior Notes —On August 11, 2020, Summit LLC and Summit Finance (together, the “Issuers”) issued $700.0 million in aggregate principal amount of 5.250% senior notes due January 15, 2029 (the “2029 Notes”). The 2029 Notes were issued at 100.0% of their par value with proceeds of $690.4 million, net of related fees and expenses. The 2029 Notes were issued under an indenture dated August 11, 2020 (the "2029 Notes Indenture"). The 2029 Notes Indenture contains covenants limiting, among other things, Summit LLC and its restricted subsidiaries’ ability to incur additional indebtedness or issue certain preferred shares, pay dividends, redeem stock or make other distributions, make certain investments, sell or transfer certain assets, create liens, consolidate, merge, sell or otherwise dispose of all or substantially all of its assets, enter into certain transactions with affiliates, and designate subsidiaries as unrestricted subsidiaries. The 2029 Notes Indenture also contains customary events of default. Interest on the 2029 Notes is payable semi-annually on January 15 and July 15 of each year commencing on January 15, 2021. On March 15, 2019, the Issuers issued $300.0 million in aggregate principal amount of 6.500% senior notes due March 15, 2027 (the “2027 Notes”). The 2027 Notes were issued at 100.0% of their par value with proceeds of $296.3 million, net of related fees and expenses. The 2027 Notes were issued under an indenture dated March 25, 2019, the terms of which are generally consistent with the 2029 Notes Indenture. Interest on the 2027 Notes is payable semi-annually on March 15 and September 15 of each year commencing on September 15, 2019. As of April 1, 2023 and December 31, 2022, the Company was in compliance with all covenants under the applicable indentures. Senior Secured Credit Facilities — Summit LLC has credit facilities that provide for term loans in an aggregate amount of $508.3 million and revolving credit commitments in an aggregate amount of $395.0 million (the “Senior Secured Credit Facilities”). Under the Senior Secured Credit Facilities, required principal repayments of 0.25% of the refinanced aggregate amount of term debt are due on the last business day of each March, June, September and December commencing with the March 2023 payment. The interest rate on the term loan is a variable rate, it was 8.49% as of April 1, 2023. In 2022, the Company repaid $95.6 million of its term loan under provisions related to divestitures of businesses. The unpaid principal balance is due in full on the maturity date, which is December 14, 2027. On December 14, 2022, Summit Materials, LLC entered into Amendment No. 5 to the credit agreement governing the Senior Secured Credit Facilities (the “Credit Agreement”), which among other things, (a) refinanced the existing $509.6 million of existing term loans with new term loans under the Term Loan Facility bearing interest, at Summit LLC’s option, based on either the base rate or Term SOFR rate and an applicable margin of (i) 2.00% per annum with respect to base rate borrowings and a floor of 1.00% per annum or (ii) 3.00% per annum with respect to Term SOFR borrowings, with a SOFR adjustment of 0.10% per annum and a floor of zero, and (b) extended the maturity date to December 14, 2027. On January 10, 2023, Summit Materials, LLC entered into Amendment No. 6 to the Credit Agreement, which among other things, increased the maximum amount available to $395.0 million and extended the maturity date to January 10, 2028. The revolving credit agreement bears interest per annum equal to a Term SOFR Rate with a SOFR adjustment of 0.10% per annum and a floor of zero. There were no outstanding borrowings under the revolving credit facility as of April 1, 2023 and December 31, 2022, with borrowing capacity of $373.9 million remaining as of April 1, 2023, which is net of $21.1 million of outstanding letters of credit. The outstanding letters of credit are renewed annually and support required bonding on construction projects, large leases, workers compensation claims and the Company’s insurance liabilities. Summit LLC’s Consolidated First Lien Net Leverage Ratio, as such term is defined in the Credit Agreement, should be no greater than 4.75:1.0 as of each quarter-end. As of April 1, 2023 and December 31, 2022, Summit LLC was in compliance with all financial covenants. Summit LLC’s wholly-owned domestic subsidiary companies, subject to certain exclusions and exceptions, are named as subsidiary guarantors of the Senior Notes and the Senior Secured Credit Facilities. In addition, Summit LLC has pledged substantially all of its assets as collateral, subject to certain exclusions and exceptions, for the Senior Secured Credit Facilities. The following table presents the activity for the deferred financing fees for the three months ended April 1, 2023 and April 2, 2022: Deferred financing fees Balance—December 31, 2022 $ 11,489 Loan origination fees 1,566 Amortization (616) Write off of deferred financing fees (160) Balance—April 1, 2023 $ 12,279 Balance - January 1, 2022 $ 13,049 Amortization (692) Balance -April 2, 2022 $ 12,357 Other —On January 15, 2015, the Company’s wholly-owned subsidiary in British Columbia, Canada entered into an agreement with HSBC Bank Canada, which was amended on November 30, 2020, for a (i) $6.0 million Canadian dollar (“CAD”) revolving credit commitment to be used for operating activities that bears interest per annum equal to the bank’s prime rate plus 0.20%, (ii) $0.5 million CAD revolving credit commitment to be used for capital equipment that bears interest per annum at the bank’s prime rate plus 0.20% and (iii) $1.5 million CAD revolving credit commitment to provide guarantees on behalf of that subsidiary and (iv) $10.0 million CAD revolving foreign exchange facility available to purchase foreign exchange forward contracts. There were no amounts outstanding under this agreement as of April 1, 2023 or December 31, 2022, which may be terminated upon demand.

INCOME TAXES

INCOME TAXES	3 Months Ended
	Apr. 01, 2023
Income Taxes [Line Items]
INCOME TAXES	INCOME TAXES Summit Inc.’s tax provision includes its proportional share of Summit Holdings’ tax attributes. Summit Holdings’ subsidiaries are primarily limited liability companies but do include certain entities organized as C corporations and a Canadian subsidiary. The tax attributes related to the limited liability companies are passed on to Summit Holdings and then to its partners, including Summit Inc. The tax attributes associated with the C corporation and Canadian subsidiaries are fully reflected in the Company’s accounts. Our income tax benefit was $(6.5) million and $(4.7) million in the three months ended April 1, 2023 and April 2, 2022, respectively. The effective tax rate for Summit Inc. differs from the federal statutory tax rate primarily due to (1) tax depletion expense in excess of the expense recorded under U.S. GAAP, (2) basis differences in assets divested, (3) state taxes, (4) the minority interest in the Summit Holdings partnership that is allocated outside of the Company and (5) various other items such as limitations on meals and entertainment, certain stock compensation and other costs. As of April 1, 2023 and December 31, 2022, Summit Inc. had a valuation allowance of $1.1 million and $1.1 million, respectively, which relates to certain deferred tax assets in taxable entities where realization is not more likely than not. No material interest or penalties were recognized in income tax expense during the three months ended April 1, 2023 and April 2, 2022. Tax Receivable Agreement —The Company is party to a TRA with certain current and former holders of LP Units that provides for the payment by Summit Inc. to exchanging holders of LP Units of 85% of the benefits, if any, that Summit Inc. actually realizes (or, under certain circumstances such as an early termination of the TRA, is deemed to realize) as a result of increases in the tax basis of tangible and intangible assets of Summit Holdings and certain other tax benefits related to entering into the TRA, including tax benefits attributable to payments under the TRA. In the three months ended April 1, 2023, 2,000 LP Units were acquired by Summit Inc. in exchange for an equal number of newly-issued shares of Summit Inc.’s Class A common stock. As of April 1, 2023 and December 31, 2022, we had recorded $327.8 million and $328.4 million of TRA liability, respectively. Tax Distributions – The holders of Summit Holdings’ LP Units, including Summit Inc., incur U.S. federal, state and local income taxes on their share of any taxable income of Summit Holdings. The limited partnership agreement of Summit Holdings provides for pro rata cash distributions (“tax distributions”) to the holders of the LP Units in an amount generally calculated to provide each holder of LP Units with sufficient cash to cover its tax liability in respect of the LP Units. In
Summit Materials, LLC
Income Taxes [Line Items]
INCOME TAXES	INCOME TAXES Summit LLC is a limited liability company and passes its tax attributes for federal and state tax purposes to its parent company and is generally not subject to federal or state income tax. However, certain subsidiary entities file federal, state and Canadian income tax returns due to their status as taxable entities in the respective jurisdiction. The effective income tax rate for the C Corporations differs from the statutory federal rate primarily due to (1) tax depletion expense in excess of the expense recorded under U.S. GAAP, (2) basis differences in assets divested, (3) state income taxes and the effect of graduated tax rates and (4) various other items, such as limitations on meals and entertainment and other costs. The effective income tax rate for the Canadian subsidiary is not significantly different from its historical effective tax rate. No material interest or penalties were recognized in income tax expense during the three months ended April 1, 2023 and April 2, 2022.

EARNINGS PER SHARE

EARNINGS PER SHARE	3 Months Ended
	Apr. 01, 2023
Earnings Per Share [Abstract]
EARNINGS PER SHARE	EARNINGS PER SHARE Basic earnings per share is computed by dividing net earnings by the weighted average common shares outstanding and diluted net earnings is computed by dividing net earnings, adjusted for changes in the earnings allocated to Summit Inc. as a result of the assumed conversion of LP Units, by the weighted-average common shares outstanding assuming dilution. The following table shows the calculation of basic and diluted earnings per share: Three months ended April 1, 2023 April 2, 2022 Net loss attributable to Summit Inc. $ (30,804) $ (34,292) Weighted average shares of Class A stock outstanding 118,564,556 120,756,555 Add: Nonvested restricted stock awards of retirement eligible shares 115,100 160,125 Weighted average shares outstanding 118,679,656 120,916,680 Basic loss per share $ (0.26) $ (0.28) Diluted net loss attributable to Summit Inc. $ (30,804) $ (34,292) Weighted average shares outstanding 118,679,656 120,916,680 Add: weighted average of LP Units — — Add: stock options — — Add: warrants — — Add: restricted stock units — — Add: performance stock units — — Weighted average dilutive shares outstanding 118,679,656 120,916,680 Diluted loss per share $ (0.26) $ (0.28) Excluded from the above calculations were the shares noted below as they were antidilutive: Three months ended April 1, 2023 April 2, 2022 Antidilutive shares: LP Units 1,311,257 1,314,006 Time-vesting stock options 279,680 290,944 Warrants 31,519 31,519 Time-vesting restricted stock units 1,051,844 1,379,251 Market-based restricted stock units 439,704 416,096

STOCKHOLDERS' EQUITY_MEMBERS' I

STOCKHOLDERS' EQUITY/MEMBERS' INTEREST	3 Months Ended
	Apr. 01, 2023
Schedule of Capitalization, Equity [Line Items]
STOCKHOLDERS' EQUITY	STOCKHOLDERS’ EQUITY During 2023, certain limited partners of Summit Holdings exchanged their LP Units for shares of Class A common stock of Summit Inc. In March 2022, our Board of Directors authorized a share repurchase program, whereby we can repurchase up to $250 million of our Class A common stock. As of April 1, 2023, there was $149.0 million available for purchase, upon which they will be retired. The following table summarizes the changes in our ownership of Summit Holdings: Summit Inc. LP Units Total Summit Inc. Balance — December 31, 2022 118,408,655 1,312,004 119,720,659 98.9 % Exchanges during period 2,000 (2,000) — Stock option exercises 902 — 902 Other equity transactions 407,114 — 407,114 Balance — April 1, 2023 118,818,671 1,310,004 120,128,675 98.9 % Balance — January 1, 2022 120,684,322 1,314,006 121,998,328 98.9 % Stock option exercises 1,589 — 1,589 Repurchases of common stock (1,506,878) — (1,506,878) Other equity transactions 842,029 — 842,029 Balance — April 2, 2022 120,021,062 1,314,006 121,335,068 98.9 % Summit Inc. is Summit Holdings’ primary beneficiary and thus consolidates Summit Holdings in its consolidated financial statements with a corresponding noncontrolling interest reclassification, which was 1.1% and 1.1% as of April 1, 2023 and December 31, 2022, respectively. Accumulated other comprehensive income (loss) —The changes in each component of accumulated other comprehensive income (loss) consisted of the following: Change in Foreign currency Accumulated Balance — December 31, 2022 $ 6,356 $ (3,272) $ 3,084 Foreign currency translation adjustment, net of tax — 161 161 Balance — April 1, 2023 $ 6,356 $ (3,111) $ 3,245 Balance — January 1, 2022 $ 1,508 $ 5,575 $ 7,083 Foreign currency translation adjustment, net of tax — 1,306 1,306 Balance — April 2, 2022 $ 1,508 $ 6,881 $ 8,389
Summit Materials, LLC
Schedule of Capitalization, Equity [Line Items]
MEMBERS' INTEREST	MEMBERS’ INTEREST Accumulated other comprehensive income (loss) —The changes in each component of accumulated other comprehensive income (loss) consisted of the following: Accumulated Foreign currency other Change in translation comprehensive retirement plans adjustments (loss) income Balance — December 31, 2022 $ (762) $ (20,614) $ (21,376) Foreign currency translation adjustment — 203 203 Balance — April 1, 2023 $ (762) $ (20,411) $ (21,173) Balance — January 1, 2022 $ (7,243) $ (8,783) $ (16,026) Foreign currency translation adjustment — 1,744 1,744 Balance — April 2, 2022 $ (7,243) $ (7,039) $ (14,282)

SUPPLEMENTAL CASH FLOW INFORMAT

SUPPLEMENTAL CASH FLOW INFORMATION	3 Months Ended
	Apr. 01, 2023
Schedule Of Cash Flow Supplemental [Line Items]
SUPPLEMENTAL CASH FLOW INFORMATION	SUPPLEMENTAL CASH FLOW INFORMATION Supplemental cash flow information is as follows: Three months ended April 1, 2023 April 2, 2022 Cash payments: Interest $ 37,970 $ 31,789 Payments for income taxes, net 2,088 1,542 Operating cash payments on operating leases 2,402 2,455 Operating cash payments on finance leases 149 372 Finance cash payments on finance leases 4,011 5,949 Non cash investing and financing activities: Accrued liabilities for purchases of property, plant and equipment $ 21,911 $ 23,610 Right of use assets obtained in exchange for operating lease obligations 679 5,416 Right of use assets obtained in exchange for finance leases obligations 413 248 Exchange of LP Units to shares of Class A common stock 60 —
Summit Materials, LLC
Schedule Of Cash Flow Supplemental [Line Items]
SUPPLEMENTAL CASH FLOW INFORMATION	SUPPLEMENTAL CASH FLOW INFORMATION Supplemental cash flow information is as follows: Three months ended April 1, 2023 April 2, 2022 Cash payments: Interest $ 37,970 $ 31,789 Payments for income taxes, net 2,088 1,542 Operating cash payments on operating leases 2,402 2,455 Operating cash payments on finance leases 149 372 Finance cash payments on finance leases 4,011 5,949 Non cash investing and financing activities: Accrued liabilities for purchases of property, plant and equipment $ 21,911 $ 23,610 Right of use assets obtained in exchange for operating lease obligations 679 5,416 Right of use assets obtained in exchange for finance leases obligations 413 248

LEASES

LEASES	3 Months Ended
	Apr. 01, 2023
Lessee, Lease, Description [Line Items]
LEASES	LEASES We lease construction and office equipment, distribution facilities and office space. Leases with an initial term of 12 months or less, including month to month leases, are not recorded on the balance sheet. Lease expense for short-term leases is recognized on a straight line basis over the lease term. For lease agreements we have entered into or reassessed we combine lease and nonlease components. While we also own mineral leases for mining operations, those leases are outside the scope of Accounting Standards Update No. 2016-2, Leases (Topic 842). Assets acquired under finance leases are included in property, plant and equipment. Many of our leases include options to purchase the leased equipment. The depreciable life of assets and leasehold improvements are limited by the expected lease term, unless there is a transfer of title or purchase option reasonably certain of exercise. Our lease agreements do not contain any material residual value guarantees or material restrictive covenants. The components of lease expense were as follows: Three months ended April 1, 2023 April 2, 2022 Operating lease cost $ 2,641 $ 2,512 Variable lease cost 30 113 Short-term lease cost 7,270 8,248 Financing lease cost: Amortization of right-of-use assets 818 1,986 Interest on lease liabilities 148 369 Total lease cost $ 10,907 $ 13,228 April 1, 2023 December 31, 2022 Supplemental balance sheet information related to leases: Operating leases: Operating lease right-of-use assets $ 36,638 $ 37,889 Current operating lease liabilities $ 7,515 $ 7,296 Noncurrent operating lease liabilities 34,315 35,737 Total operating lease liabilities $ 41,830 $ 43,033 Finance leases: Property and equipment, gross $ 24,565 $ 32,119 Less accumulated depreciation (11,279) (14,992) Property and equipment, net $ 13,286 $ 17,127 Current finance lease liabilities $ 4,224 $ 6,959 Long-term finance lease liabilities 6,303 7,167 Total finance lease liabilities $ 10,527 $ 14,126 Weighted average remaining lease term (years): Operating leases 9.0 9.1 Finance lease 3.5 2.8 Weighted average discount rate: Operating leases 4.7 % 4.7 % Finance leases 5.6 % 5.3 % Maturities of lease liabilities, as of April 1, 2023, were as follows: Operating Leases Finance Leases 2023 (nine months) $ 6,929 $ 3,106 2024 8,289 3,433 2025 6,377 2,435 2026 5,009 990 2027 4,161 760 2028 3,223 513 Thereafter 16,787 570 Total lease payments 50,775 11,807 Less imputed interest (8,945) (1,280) Present value of lease payments $ 41,830 $ 10,527
LEASES	LEASES We lease construction and office equipment, distribution facilities and office space. Leases with an initial term of 12 months or less, including month to month leases, are not recorded on the balance sheet. Lease expense for short-term leases is recognized on a straight line basis over the lease term. For lease agreements we have entered into or reassessed we combine lease and nonlease components. While we also own mineral leases for mining operations, those leases are outside the scope of Accounting Standards Update No. 2016-2, Leases (Topic 842). Assets acquired under finance leases are included in property, plant and equipment. Many of our leases include options to purchase the leased equipment. The depreciable life of assets and leasehold improvements are limited by the expected lease term, unless there is a transfer of title or purchase option reasonably certain of exercise. Our lease agreements do not contain any material residual value guarantees or material restrictive covenants. The components of lease expense were as follows: Three months ended April 1, 2023 April 2, 2022 Operating lease cost $ 2,641 $ 2,512 Variable lease cost 30 113 Short-term lease cost 7,270 8,248 Financing lease cost: Amortization of right-of-use assets 818 1,986 Interest on lease liabilities 148 369 Total lease cost $ 10,907 $ 13,228 April 1, 2023 December 31, 2022 Supplemental balance sheet information related to leases: Operating leases: Operating lease right-of-use assets $ 36,638 $ 37,889 Current operating lease liabilities $ 7,515 $ 7,296 Noncurrent operating lease liabilities 34,315 35,737 Total operating lease liabilities $ 41,830 $ 43,033 Finance leases: Property and equipment, gross $ 24,565 $ 32,119 Less accumulated depreciation (11,279) (14,992) Property and equipment, net $ 13,286 $ 17,127 Current finance lease liabilities $ 4,224 $ 6,959 Long-term finance lease liabilities 6,303 7,167 Total finance lease liabilities $ 10,527 $ 14,126 Weighted average remaining lease term (years): Operating leases 9.0 9.1 Finance lease 3.5 2.8 Weighted average discount rate: Operating leases 4.7 % 4.7 % Finance leases 5.6 % 5.3 % Maturities of lease liabilities, as of April 1, 2023, were as follows: Operating Leases Finance Leases 2023 (nine months) $ 6,929 $ 3,106 2024 8,289 3,433 2025 6,377 2,435 2026 5,009 990 2027 4,161 760 2028 3,223 513 Thereafter 16,787 570 Total lease payments 50,775 11,807 Less imputed interest (8,945) (1,280) Present value of lease payments $ 41,830 $ 10,527
Summit Materials, LLC
Lessee, Lease, Description [Line Items]
LEASES	LEASES We lease construction and office equipment, distribution facilities and office space. Leases with an initial term of 12 months or less, including month to month leases, are not recorded on the balance sheet. Lease expense for short-term leases is recognized on a straight line basis over the lease term. For lease agreements we have entered into or reassessed, we combine lease and nonlease components. While we also own mineral leases for mining operations, those leases are outside the scope of Accounting Standards Update No. 2016-2, Leases (Topic 842). Assets acquired under finance leases are included in property, plant and equipment. Many of our leases include options to purchase the leased equipment. The depreciable life of assets and leasehold improvements are limited by the expected lease term, unless there is a transfer of title or purchase option reasonably certain of exercise. Our lease agreements do not contain any material residual value guarantees or material restrictive covenants. The components of lease expense were as follows: Three months ended April 1, 2023 April 2, 2022 Operating lease cost $ 2,641 $ 2,512 Variable lease cost 30 113 Short-term lease cost 7,270 8,248 Financing lease cost: Amortization of right-of-use assets 818 1,986 Interest on lease liabilities 148 369 Total lease cost $ 10,907 $ 13,228 April 1, 2023 December 31, 2022 Supplemental balance sheet information related to leases: Operating leases: Operating lease right-of-use assets $ 36,638 $ 37,889 Current operating lease liabilities $ 7,515 $ 7,296 Noncurrent operating lease liabilities 34,315 35,737 Total operating lease liabilities $ 41,830 $ 43,033 Finance leases: Property and equipment, gross $ 24,565 $ 32,119 Less accumulated depreciation (11,279) (14,992) Property and equipment, net $ 13,286 $ 17,127 Current finance lease liabilities $ 4,224 $ 6,959 Long-term finance lease liabilities 6,303 7,167 Total finance lease liabilities $ 10,527 $ 14,126 Weighted average remaining lease term (years): Operating leases 9.0 9.1 Finance lease 3.5 2.8 Weighted average discount rate: Operating leases 4.7 % 4.7 % Finance leases 5.6 % 5.3 % Maturities of lease liabilities, as of April 1, 2023, were as follows: Operating Leases Finance Leases 2023 (nine months) $ 6,929 $ 3,106 2024 8,289 3,433 2025 6,377 2,435 2026 5,009 990 2027 4,161 760 2028 3,223 513 Thereafter 16,787 570 Total lease payments 50,775 11,807 Less imputed interest (8,945) (1,280) Present value of lease payments $ 41,830 $ 10,527
LEASES	LEASES We lease construction and office equipment, distribution facilities and office space. Leases with an initial term of 12 months or less, including month to month leases, are not recorded on the balance sheet. Lease expense for short-term leases is recognized on a straight line basis over the lease term. For lease agreements we have entered into or reassessed, we combine lease and nonlease components. While we also own mineral leases for mining operations, those leases are outside the scope of Accounting Standards Update No. 2016-2, Leases (Topic 842). Assets acquired under finance leases are included in property, plant and equipment. Many of our leases include options to purchase the leased equipment. The depreciable life of assets and leasehold improvements are limited by the expected lease term, unless there is a transfer of title or purchase option reasonably certain of exercise. Our lease agreements do not contain any material residual value guarantees or material restrictive covenants. The components of lease expense were as follows: Three months ended April 1, 2023 April 2, 2022 Operating lease cost $ 2,641 $ 2,512 Variable lease cost 30 113 Short-term lease cost 7,270 8,248 Financing lease cost: Amortization of right-of-use assets 818 1,986 Interest on lease liabilities 148 369 Total lease cost $ 10,907 $ 13,228 April 1, 2023 December 31, 2022 Supplemental balance sheet information related to leases: Operating leases: Operating lease right-of-use assets $ 36,638 $ 37,889 Current operating lease liabilities $ 7,515 $ 7,296 Noncurrent operating lease liabilities 34,315 35,737 Total operating lease liabilities $ 41,830 $ 43,033 Finance leases: Property and equipment, gross $ 24,565 $ 32,119 Less accumulated depreciation (11,279) (14,992) Property and equipment, net $ 13,286 $ 17,127 Current finance lease liabilities $ 4,224 $ 6,959 Long-term finance lease liabilities 6,303 7,167 Total finance lease liabilities $ 10,527 $ 14,126 Weighted average remaining lease term (years): Operating leases 9.0 9.1 Finance lease 3.5 2.8 Weighted average discount rate: Operating leases 4.7 % 4.7 % Finance leases 5.6 % 5.3 % Maturities of lease liabilities, as of April 1, 2023, were as follows: Operating Leases Finance Leases 2023 (nine months) $ 6,929 $ 3,106 2024 8,289 3,433 2025 6,377 2,435 2026 5,009 990 2027 4,161 760 2028 3,223 513 Thereafter 16,787 570 Total lease payments 50,775 11,807 Less imputed interest (8,945) (1,280) Present value of lease payments $ 41,830 $ 10,527

COMMITMENTS AND CONTINGENCIES

COMMITMENTS AND CONTINGENCIES	3 Months Ended
	Apr. 01, 2023
Loss Contingencies [Line Items]
COMMITMENTS AND CONTINGENCIES	COMMITMENTS AND CONTINGENCIES The Company is party to certain legal actions arising from the ordinary course of business activities. Accruals are recorded when the outcome is probable and can be reasonably estimated. While the ultimate results of claims and litigation cannot be predicted with certainty, management expects that the ultimate resolution of all current pending or threatened claims and litigation will not have a material effect on the Company’s consolidated financial position, results of operations or liquidity. The Company records legal fees as incurred. In March 2018, we were notified of an investigation by the Canadian Competition Bureau (the “CCB”) into pricing practices by certain asphalt paving contractors in British Columbia, including Winvan Paving, Ltd. (“Winvan”). We believe the investigation is focused on time periods prior to our April 2017 acquisition of Winvan and we are cooperating with the CCB. Although we currently do not believe this matter will have a material adverse effect on our business, financial condition or results of operations, we are currently not able to predict the ultimate outcome or cost of the investigation. Environmental Remediation and Site Restoration —The Company’s operations are subject to and affected by federal, state, provincial and local laws and regulations relating to the environment, health and safety and other regulatory matters. These operations require environmental operating permits, which are subject to modification, renewal and revocation. The Company regularly monitors and reviews its operations, procedures and policies for compliance with these laws and regulations. Despite these compliance efforts, risk of environmental liability is inherent in the operation of the Company’s business, as it is with other companies engaged in similar businesses and there can be no assurance that environmental liabilities or noncompliance will not have a material adverse effect on the Company’s consolidated financial condition, results of operations or liquidity. The Company has asset retirement obligations arising from regulatory and contractual requirements to perform reclamation activities at the time certain quarries and landfills are closed. As of April 1, 2023 and December 31, 2022, $35.5 million and $36.3 million, respectively, were included in other noncurrent liabilities on the consolidated balance sheets and $5.3 million and $4.0 million, respectively, were included in accrued expenses for future reclamation costs. The total undiscounted anticipated costs for site reclamation as of April 1, 2023 and December 31, 2022 were $124.8 million and $124.9 million, respectively. Other —The Company is obligated under various firm purchase commitments for certain raw materials and services that are in the ordinary course of business. Management does not expect any significant changes in the market value of these goods and services during the commitment period that would have a material adverse effect on the financial condition, results of operations and cash flows of the Company. The terms of the purchase commitments generally approximate one year.
Summit Materials, LLC
Loss Contingencies [Line Items]
COMMITMENTS AND CONTINGENCIES	COMMITMENTS AND CONTINGENCIES The Company is party to certain legal actions arising from the ordinary course of business activities. Accruals are recorded when the outcome is probable and can be reasonably estimated. While the ultimate results of claims and litigation cannot be predicted with certainty, management expects that the ultimate resolution of all current pending or threatened claims and litigation will not have a material effect on the Company’s consolidated financial position, results of operations or liquidity. The Company records legal fees as incurred. In March 2018, we were notified of an investigation by the Canadian Competition Bureau (the “CCB”) into pricing practices by certain asphalt paving contractors in British Columbia, including Winvan Paving, Ltd. (“Winvan”). We believe the investigation is focused on time periods prior to our April 2017 acquisition of Winvan and we are cooperating with the CCB. Although we currently do not believe this matter will have a material adverse effect on our business, financial condition or results of operations, we are currently not able to predict the ultimate outcome or cost of the investigation. Environmental Remediation and Site Restoration —The Company’s operations are subject to and affected by federal, state, provincial and local laws and regulations relating to the environment, health and safety and other regulatory matters. These operations require environmental operating permits, which are subject to modification, renewal and revocation. The Company regularly monitors and reviews its operations, procedures and policies for compliance with these laws and regulations. Despite these compliance efforts, risk of environmental liability is inherent in the operation of the Company’s business, as it is with other companies engaged in similar businesses and there can be no assurance that environmental liabilities or noncompliance will not have a material adverse effect on the Company’s consolidated financial condition, results of operations or liquidity. The Company has asset retirement obligations arising from regulatory and contractual requirements to perform reclamation activities at the time certain quarries and landfills are closed. As of April 1, 2023 and December 31, 2022, $35.5 million and $36.3 million, respectively, were included in other noncurrent liabilities on the consolidated balance sheets and $5.3 million and $4.0 million, respectively, were included in accrued expenses for future reclamation costs. The total undiscounted anticipated costs for site reclamation as of April 1, 2023 and December 31, 2022 were $124.8 million and $124.9 million, respectively. Other —The Company is obligated under various firm purchase commitments for certain raw materials and services that are in the ordinary course of business. Management does not expect any significant changes in the market value of these goods and services during the commitment period that would have a material adverse effect on the financial condition, results of operations and cash flows of the Company. The terms of the purchase commitments generally approximate one year.

FAIR VALUE

FAIR VALUE	3 Months Ended
	Apr. 01, 2023
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
FAIR VALUE	FAIR VALUE Fair Value Measurements— Certain acquisitions made by the Company require the payment of contingent amounts of purchase consideration. These payments are contingent on specified operating results being achieved in periods subsequent to the acquisition and will only be made if earn-out thresholds are achieved. Contingent consideration obligations are measured at fair value each reporting period. Any adjustments to fair value are recognized in earnings in the period identified. The fair value of contingent consideration as of April 1, 2023 and December 31, 2022 was: April 1, 2023 December 31, 2022 Current portion of acquisition-related liabilities and Accrued expenses: Contingent consideration $ 336 $ 336 Acquisition-related liabilities and Other noncurrent liabilities: Contingent consideration $ 4,961 $ 4,981 The fair value of contingent consideration was based on unobservable, or Level 3, inputs, including projected probability-weighted cash payments and a 10.0% discount rate, which reflects a market discount rate. Changes in fair value may occur as a result of a change in actual or projected cash payments, the probability weightings applied by the Company to projected payments or a change in the discount rate. Significant increases or decreases in any of these inputs in isolation could result in a lower, or higher, fair value measurement. There were no material valuation adjustments to contingent consideration as of April 1, 2023 and April 2, 2022. Financial Instruments —The Company’s financial instruments include debt and certain acquisition-related liabilities (deferred consideration and noncompete obligations). The carrying value and fair value of these financial instruments as of April 1, 2023 and December 31, 2022 was: April 1, 2023 December 31, 2022 Fair Value Carrying Value Fair Value Carrying Value Level 1 Long-term debt(1) $ 1,457,171 $ 1,503,530 $ 1,447,673 $ 1,504,549 Level 3 Current portion of deferred consideration and noncompete obligations(2) 6,907 6,907 13,382 13,382 Long term portion of deferred consideration and noncompete obligations(3) 17,978 17,978 24,070 24,070 (1) $5.1 million was included in current portion of debt as of April 1, 2023 and December 31, 2022. (2) Included in current portion of acquisition-related liabilities on the consolidated balance sheets. (3) Included in acquisition-related liabilities on the consolidated balance sheets. The fair value of debt was determined based on observable, or Level 2, inputs, such as interest rates, bond yields and quoted prices in inactive markets. The fair values of the deferred consideration and noncompete obligations were determined based on unobservable, or Level 3, inputs, including the cash payment terms in the purchase agreements and a discount rate reflecting the Company’s credit risk. The discount rate used is generally consistent with that used when the obligations were initially recorded. Securities with a maturity of three months or less are considered cash equivalents and the fair value of these assets approximates their carrying value.
Summit Materials, LLC
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
FAIR VALUE	FAIR VALUE Fair Value Measurements— Certain acquisitions made by the Company require the payment of contingent amounts of purchase consideration. These payments are contingent on specified operating results being achieved in periods subsequent to the acquisition and will only be made if earn-out thresholds are achieved. Contingent consideration obligations are measured at fair value each reporting period. Any adjustments to fair value are recognized in earnings in the period identified. The fair value of contingent consideration as of April 1, 2023 and December 31, 2022 was: April 1, 2023 December 31, 2022 Current portion of acquisition-related liabilities and Accrued expenses: Contingent consideration $ 336 $ 336 Acquisition-related liabilities and Other noncurrent liabilities: Contingent consideration $ 4,961 $ 4,981 The fair value of contingent consideration was based on unobservable, or Level 3, inputs, including projected probability-weighted cash payments and a 10.0% discount rate, which reflects a market discount rate. Changes in fair value may occur as a result of a change in actual or projected cash payments, the probability weightings applied by the Company to projected payments or a change in the discount rate. Significant increases or decreases in any of these inputs in isolation could result in a lower, or higher, fair value measurement. There were no material valuation adjustments to contingent consideration as of April 1, 2023 and April 2, 2022. Financial Instruments —The Company’s financial instruments include debt and certain acquisition-related liabilities (deferred consideration and noncompete obligations). The carrying value and fair value of these financial instruments as of April 1, 2023 and December 31, 2022 was: April 1, 2023 December 31, 2022 Fair Value Carrying Value Fair Value Carrying Value Level 1 Long-term debt(1) $ 1,457,171 $ 1,503,530 $ 1,447,673 $ 1,504,549 Level 3 Current portion of deferred consideration and noncompete obligations(2) 6,907 6,907 13,382 13,382 Long term portion of deferred consideration and noncompete obligations(3) 17,978 17,978 24,070 24,070 (1) $5.1 million was included in current portion of debt as of April 1, 2023 and December 31, 2022. (2) Included in current portion of acquisition-related liabilities on the consolidated balance sheets. (3) Included in acquisition-related liabilities on the consolidated balance sheets. The fair value of debt was determined based on observable, or Level 2, inputs, such as interest rates, bond yields and quoted prices in inactive markets. The fair values of the deferred consideration and noncompete obligations were determined based on unobservable, or Level 3, inputs, including the cash payment terms in the purchase agreements and a discount rate reflecting the Company’s credit risk. The discount rate used is generally consistent with that used when the obligations were initially recorded. Securities with a maturity of three months or less are considered cash equivalents and the fair value of these assets approximates their carrying value.

SEGMENT INFORMATION

SEGMENT INFORMATION	3 Months Ended
	Apr. 01, 2023
Segment Reporting Information [Line Items]
SEGMENT INFORMATION	SEGMENT INFORMATION The Company has three operating segments: West, East and Cement, which are its reporting segments. These segments are consistent with the Company’s management reporting structure. The operating results of each segment are regularly reviewed and evaluated by the Chief Executive Officer, our Company’s Chief Operating Decision Maker (“CODM”). The CODM primarily evaluates the performance of the Company’s segments and allocates resources to them based on a segment profit metric that we call Adjusted EBITDA, which is computed as earnings from operations before interest, taxes, depreciation, depletion, amortization, accretion, and share-based compensation, as well as various other non-recurring, non-cash amounts. The West and East segments have several subsidiaries that are engaged in various activities including quarry mining, aggregate production and contracting. The Cement segment is engaged in the production of Portland cement. Assets employed by each segment include assets directly identified with those operations. Corporate assets consist primarily of cash, property, plant and equipment for corporate operations and other assets not directly identifiable with a reportable business segment. The accounting policies applicable to each segment are consistent with those used in the consolidated financial statements. The following tables display selected financial data for the Company’s reportable business segments as of April 1, 2023 and December 31, 2022 and for the three months ended April 1, 2023 and April 2, 2022: Three months ended April 1, 2023 April 2, 2022 Revenue*: West $ 250,882 $ 252,232 East 130,389 122,490 Cement 54,117 46,225 Total revenue $ 435,388 $ 420,947 *Intercompany sales are immaterial and the presentation above only reflects sales to external customers. Three months ended April 1, 2023 April 2, 2022 Loss from operations before taxes $ (37,678) $ (39,543) Interest expense 27,420 20,149 Depreciation, depletion and amortization 50,188 50,479 Accretion 706 714 Loss on debt financings 493 — Gain on sale of businesses — (14,205) Non-cash compensation 4,708 5,422 Other (4,636) 247 Total Adjusted EBITDA $ 41,201 $ 23,263 Total Adjusted EBITDA by Segment: West $ 32,678 $ 32,692 East 18,852 8,136 Cement 10 (5,819) Corporate and other (10,339) (11,746) Total Adjusted EBITDA $ 41,201 $ 23,263 Three months ended April 1, 2023 April 2, 2022 Purchases of property, plant and equipment West $ 38,174 $ 26,874 East 15,518 24,326 Cement 6,996 6,115 Total reportable segments 60,688 57,315 Corporate and other 2,896 459 Total purchases of property, plant and equipment $ 63,584 $ 57,774 Three months ended April 1, 2023 April 2, 2022 Depreciation, depletion, amortization and accretion: West $ 26,373 $ 24,575 East 15,535 18,295 Cement 7,998 7,574 Total reportable segments 49,906 50,444 Corporate and other 988 749 Total depreciation, depletion, amortization and accretion $ 50,894 $ 51,193 April 1, 2023 December 31, 2022 Total assets: West $ 1,632,437 $ 1,565,776 East 1,155,539 1,151,223 Cement 885,608 873,604 Total reportable segments 3,673,584 3,590,603 Corporate and other 541,356 665,089 Total $ 4,214,940 $ 4,255,692
Summit Materials, LLC
Segment Reporting Information [Line Items]
SEGMENT INFORMATION	SEGMENT INFORMATION The Company has three operating segments: West, East and Cement, which are its reporting segments. These segments are consistent with the Company’s management reporting structure. The operating results of each segment are regularly reviewed and evaluated by the Chief Executive Officer, our Company’s Chief Operating Decision Maker (“CODM”). The CODM primarily evaluates the performance of the Company’s segments and allocates resources to them based on a segment profit metric that we call Adjusted EBITDA, which is computed as earnings from operations before interest, taxes, depreciation, depletion, amortization, accretion and share-based compensation, as well as various other non-recurring, non-cash amounts. The West and East segments have several subsidiaries that are engaged in various activities including quarry mining, aggregate production and contracting. The Cement segment is engaged in the production of Portland cement. Assets employed by each segment include assets directly identified with those operations. Corporate assets consist primarily of cash, property, plant and equipment for corporate operations and other assets not directly identifiable with a reportable business segment. The accounting policies applicable to each segment are consistent with those used in the consolidated financial statements. The following tables display selected financial data for the Company’s reportable business segments as of April 1, 2023 and December 31, 2022 and for the three months ended April 1, 2023 and April 2, 2022: Three months ended April 1, 2023 April 2, 2022 Revenue*: West $ 250,882 $ 252,232 East 130,389 122,490 Cement 54,117 46,225 Total revenue $ 435,388 $ 420,947 *Intercompany sales are immaterial and the presentation above only reflects sales to external customers. Three months ended April 1, 2023 April 2, 2022 Loss from operations before taxes $ (37,678) $ (39,543) Interest expense 27,420 20,149 Depreciation, depletion and amortization 50,188 50,479 Accretion 706 714 Loss on debt financings 493 — Gain on sale of businesses — (14,205) Non-cash compensation 4,708 5,422 Other (4,636) 247 Total Adjusted EBITDA $ 41,201 $ 23,263 Total Adjusted EBITDA by Segment: West $ 32,678 $ 32,692 East 18,852 8,136 Cement 10 (5,819) Corporate and other (10,339) (11,746) Total Adjusted EBITDA $ 41,201 $ 23,263 Three months ended April 1, 2023 April 2, 2022 Purchases of property, plant and equipment West $ 38,174 $ 26,874 East 15,518 24,326 Cement 6,996 6,115 Total reportable segments 60,688 57,315 Corporate and other 2,896 459 Total purchases of property, plant and equipment $ 63,584 $ 57,774 Three months ended April 1, 2023 April 2, 2022 Depreciation, depletion, amortization and accretion: West $ 26,373 $ 24,575 East 15,535 18,295 Cement 7,998 7,574 Total reportable segments 49,906 50,444 Corporate and other 988 749 Total depreciation, depletion, amortization and accretion $ 50,894 $ 51,193 April 1, 2023 December 31, 2022 Total assets: West $ 1,632,437 $ 1,565,776 East 1,155,539 1,151,223 Cement 885,608 873,604 Total reportable segments 3,673,584 3,590,603 Corporate and other 397,889 529,103 Total $ 4,071,473 $ 4,119,706

GUARANTOR AND NON-GUARANTOR FIN

GUARANTOR AND NON-GUARANTOR FINANCIAL INFORMATION	3 Months Ended
	Apr. 01, 2023
Summit Materials, LLC
Guarantor and Non-Guarantor Financial Information	GUARANTOR AND NON-GUARANTOR FINANCIAL INFORMATION Summit LLC’s domestic wholly-owned subsidiary companies other than Finance Corp. are named as guarantors (collectively, the “Guarantors”) of the Senior Notes. Finance Corp. does not and will not have any assets or operations other than as may be incidental to its activities as a co-issuer of the Senior Notes and other indebtedness. Certain other partially-owned subsidiaries and a non-U.S. entity do not guarantee the Senior Notes (collectively, the “Non-Guarantors”). The Guarantors provide a joint and several, full and unconditional guarantee of the Senior Notes. There are no significant restrictions on Summit LLC’s ability to obtain funds from any of the Guarantors in the form of dividends or loans. Additionally, there are no significant restrictions on a Guarantor’s ability to obtain funds from Summit LLC or its direct or indirect subsidiaries. The following condensed consolidating balance sheets, statements of operations and cash flows are provided for the Issuers, the Guarantors and the Non-Guarantors. Earnings from subsidiaries are included in other income in the condensed consolidated statements of operations below. The financial information may not necessarily be indicative of the financial position, results of operations or cash flows had the Guarantors or Non-Guarantors operated as independent entities. Condensed Consolidating Balance Sheets April 1, 2023 Non- Issuers Guarantors Guarantors Eliminations Consolidated Assets Current assets: Cash and cash equivalents $ 352,581 $ 2,713 $ 27,633 $ (3,470) $ 379,457 Accounts receivable, net 2,066 213,534 21,042 (73) 236,569 Intercompany receivables 320,454 1,935,271 — (2,255,725) — Cost and estimated earnings in excess of billings — 12,689 1,698 — 14,387 Inventories — 228,260 6,304 — 234,564 Other current assets 11,751 13,094 1,068 — 25,913 Total current assets 686,852 2,405,561 57,745 (2,259,268) 890,890 Property, plant and equipment, net 23,419 1,762,834 81,159 — 1,867,412 Goodwill — 1,103,845 56,680 — 1,160,525 Intangible assets, net — 66,125 4,360 — 70,485 Operating lease right-of-use assets 4,463 27,447 4,728 — 36,638 Other assets 4,671,809 206,025 1,258 (4,833,569) 45,523 Total assets $ 5,386,543 $ 5,571,837 $ 205,930 $ (7,092,837) $ 4,071,473 Liabilities and Members' Interest Current liabilities: Current portion of debt $ 5,096 $ — $ — $ — $ 5,096 Current portion of acquisition-related liabilities — 7,243 — — 7,243 Accounts payable 3,711 125,906 9,272 (73) 138,816 Accrued expenses 37,547 57,127 2,359 (3,470) 93,563 Current operating lease liabilities 981 5,841 693 — 7,515 Intercompany payables 1,731,965 521,961 1,799 (2,255,725) — Billings in excess of costs and estimated earnings — 3,684 549 — 4,233 Total current liabilities 1,779,300 721,762 14,672 (2,259,268) 256,466 Long-term debt 1,487,783 — — — 1,487,783 Acquisition-related liabilities — 22,939 — — 22,939 Noncurrent operating lease liabilities 8,493 21,953 3,869 — 34,315 Other noncurrent liabilities 5,821 206,075 117,349 (164,421) 164,824 Total liabilities 3,281,397 972,729 135,890 (2,423,689) 1,966,327 Total members' interest 2,105,146 4,599,108 70,040 (4,669,148) 2,105,146 Total liabilities and members' interest $ 5,386,543 $ 5,571,837 $ 205,930 $ (7,092,837) $ 4,071,473 Condensed Consolidating Balance Sheets December 31, 2022 Non- Issuers Guarantors Guarantors Eliminations Consolidated Assets Current assets: Cash and cash equivalents $ 498,307 $ 2,864 $ 26,298 $ (7,018) $ 520,451 Accounts receivable, net 1,528 233,039 22,127 (25) 256,669 Intercompany receivables 329,744 1,937,390 — (2,267,134) — Cost and estimated earnings in excess of billings — 5,861 649 — 6,510 Inventories — 206,418 6,073 — 212,491 Other current assets 4,755 16,341 1,159 — 22,255 Total current assets 834,334 2,401,913 56,306 (2,274,177) 1,018,376 Property, plant and equipment, net 21,306 1,710,972 81,424 — 1,813,702 Goodwill — 1,076,935 56,611 — 1,133,546 Intangible assets, net — 66,972 4,412 — 71,384 Operating lease right-of-use assets 4,665 28,310 4,914 — 37,889 Other assets 4,599,488 204,644 1,220 (4,760,543) 44,809 Total assets $ 5,459,793 $ 5,489,746 $ 204,887 $ (7,034,720) $ 4,119,706 Liabilities and Members' Interest Current liabilities: Current portion of debt $ 5,096 $ — $ — $ — $ 5,096 Current portion of acquisition-related liabilities — 13,718 — — 13,718 Accounts payable 3,553 93,096 7,806 (25) 104,430 Accrued expenses 54,417 70,433 2,876 (7,018) 120,708 Current operating lease liabilities 921 5,637 738 — 7,296 Intercompany payables 1,750,352 513,494 3,288 (2,267,134) — Billings in excess of costs and estimated earnings — 4,956 783 — 5,739 Total current liabilities 1,814,339 701,334 15,491 (2,274,177) 256,987 Long-term debt 1,488,569 — — — 1,488,569 Acquisition-related liabilities — 29,051 — — 29,051 Noncurrent operating lease liabilities 8,726 22,871 4,140 — 35,737 Other noncurrent liabilities 5,009 208,185 117,439 (164,421) 166,212 Total liabilities 3,316,643 961,441 137,070 (2,438,598) 1,976,556 Total members' interest 2,143,150 4,528,305 67,817 (4,596,122) 2,143,150 Total liabilities and members' interest $ 5,459,793 $ 5,489,746 $ 204,887 $ (7,034,720) $ 4,119,706 Condensed Consolidating Statements of Operations For the three months ended April 1, 2023 Non- Issuers Guarantors Guarantors Eliminations Consolidated Revenue $ — $ 408,422 $ 27,761 $ (795) $ 435,388 Cost of revenue (excluding items shown separately below) — 335,210 19,622 (795) 354,037 General and administrative expenses 15,221 28,947 1,764 — 45,932 Depreciation, depletion, amortization and accretion 988 47,153 2,753 — 50,894 Operating (loss) income (16,209) (2,888) 3,622 — (15,475) Other income, net (19,147) (277) (508) 14,715 (5,217) Interest expense (income) 39,845 (13,795) 1,370 — 27,420 (Loss) income from operation before taxes (36,907) 11,184 2,760 (14,715) (37,678) Income tax expense (benefit) 304 (1,510) 739 — (467) Net (loss) income attributable to Summit LLC $ (37,211) $ 12,694 $ 2,021 $ (14,715) $ (37,211) Comprehensive (loss) income attributable to member of Summit Materials, LLC $ (37,008) $ 12,694 $ 1,818 $ (14,512) $ (37,008) Condensed Consolidating Statements of Operations For the three months ended April 2, 2022 Non- Issuers Guarantors Guarantors Eliminations Consolidated Revenue $ — $ 395,180 $ 27,097 $ (1,330) $ 420,947 Cost of revenue (excluding items shown separately below) — 334,264 20,446 (1,330) 353,380 General and administrative expenses 17,304 31,672 1,693 — 50,669 Depreciation, depletion, amortization and accretion 750 47,496 2,947 — 51,193 Operating (loss) income (18,054) (18,252) 2,011 — (34,295) Other income, net (5,919) (552) (7) 5,782 (696) Interest expense (income) 33,902 (15,123) 1,370 — 20,149 Gain on sale of business — (14,205) — — (14,205) (Loss) income from operation before taxes (46,037) 11,628 648 (5,782) (39,543) Income tax expense 350 6,318 176 — 6,844 Net (loss) income attributable to Summit LLC $ (46,387) $ 5,310 $ 472 $ (5,782) $ (46,387) Comprehensive (loss) income attributable to member of Summit Materials, LLC $ (44,643) $ 5,310 $ (1,272) $ (4,038) $ (44,643) Condensed Consolidating Statements of Cash Flows For the three months ended April 1, 2023 Non- Issuers Guarantors Guarantors Eliminations Consolidated Net cash (used in) provided by operating activities $ (55,528) $ 49,394 $ 6,469 $ — $ 335 Cash flow from investing activities: Acquisitions, net of cash acquired — (55,477) — — (55,477) Purchase of property, plant and equipment (2,895) (58,356) (2,333) — (63,584) Proceeds from the sale of property, plant, and equipment — 1,777 — — 1,777 Other — (1,045) — — (1,045) Net cash (used for) provided by investing activities (2,895) (113,101) (2,333) — (118,329) Cash flow from financing activities: Capital distributions to member (55,870) 55,885 — — 15 Loans received from and payments made on loans from other Summit Companies (25,853) 24,951 (2,646) 3,548 — Payments on long-term debt (1,274) (3,140) — — (4,414) Payments on acquisition-related liabilities — (11,374) — — (11,374) Debt issuance costs (1,566) — — — (1,566) Other (2,740) (2,766) (213) — (5,719) Net cash (used in) provided by financing activities (87,303) 63,556 (2,859) 3,548 (23,058) Impact of cash on foreign currency — — 58 — 58 Net (decrease) increase in cash (145,726) (151) 1,335 3,548 (140,994) Cash — Beginning of period 498,307 2,864 26,298 (7,018) 520,451 Cash — End of period $ 352,581 $ 2,713 $ 27,633 $ (3,470) $ 379,457 Condensed Consolidating Statements of Cash Flows For the three months ended April 2, 2022 Non- Issuers Guarantors Guarantors Eliminations Consolidated Net cash (used in) provided by operating activities $ (48,551) $ 25,873 $ 5,965 $ — $ (16,713) Cash flow from investing activities: Purchase of property, plant and equipment (459) (55,522) (1,793) — (57,774) Proceeds from the sale of property, plant, and equipment — 1,360 79 — 1,439 Proceeds from the sale of a business — 47,821 — — 47,821 Other — (857) — — (857) Net cash used for investing activities (459) (7,198) (1,714) — (9,371) Cash flow from financing activities: Capital distributions to member (47,482) — — — (47,482) Loans received from and payments made on loans from other Summit Companies 4,703 (2,052) (3,353) 702 — Payments on long-term debt (1,588) (6,015) — — (7,603) Payments on acquisition-related liabilities — (11,397) — — (11,397) Other (1,180) — — — (1,180) Net cash used in financing activities (45,547) (19,464) (3,353) 702 (67,662) Impact of cash on foreign currency — — 177 — 177 Net (decrease) increase in cash (94,557) (789) 1,075 702 (93,569) Cash — Beginning of period 365,044 2,264 18,337 (4,684) 380,961 Cash — End of period $ 270,487 $ 1,475 $ 19,412 $ (3,982) $ 287,392

SUMMARY OF ORGANIZATION AND S_2

SUMMARY OF ORGANIZATION AND SIGNIFICANT ACCOUNTING POLICIES - (Policies)	3 Months Ended
	Apr. 01, 2023
Summary Of Significant Accounting Policies And Recent Accounting Pronouncements [Line Items]
Basis of Presentation	Basis of Presentation —These unaudited consolidated financial statements were prepared in accordance with U.S. generally accepted accounting principles (“U.S. GAAP”) for interim financial information, without audit, pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”). Certain information and footnote disclosures typically included in financial statements prepared in accordance with U.S. GAAP have been condensed or omitted pursuant to such rules and regulations. These unaudited consolidated financial statements should be read in conjunction with the Company's audited consolidated financial statements and the notes thereto as of and for the year ended December 31, 2022. The Company continues to follow the accounting policies set forth in those audited consolidated financial statements. Management believes that these consolidated interim financial statements include all adjustments, normal and recurring in nature, that are necessary to present fairly the financial position of the Company as of April 1, 2023, the results of operations for the three months ended April 1, 2023 and April 2, 2022 and cash flows for the three months ended April 1, 2023 and April 2, 2022.
Principles of Consolidation	Principles of Consolidation —The consolidated financial statements include the accounts of Summit Inc. and its majority owned subsidiaries. All intercompany balances and transactions have been eliminated. For a summary of the changes in Summit Inc.’s ownership of Summit Holdings, see Note 9, Stockholders’ Equity.
Use of Estimates	Use of Estimates —Preparation of these consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions. These estimates and the underlying assumptions affect the amounts of assets and liabilities reported, disclosures about contingent assets and liabilities and reported amounts of revenue and expenses. Such estimates include the valuation of accounts receivable, inventories, valuation of deferred tax assets, goodwill, intangibles and other long-lived assets, tax receivable agreement ("TRA") liability, pension and other postretirement obligations and asset retirement obligations. Estimates also include revenue earned on contracts and costs to complete contracts. Most of the Company’s paving and related services are performed under fixed unit-price contracts with state and local governmental entities. Management regularly evaluates its estimates and assumptions based on historical experience and other factors, including the current economic environment. As future events and their effects cannot be determined with precision, actual results can differ significantly from estimates made. Changes in estimates, including
Business and Credit Concentrations	Business and Credit Concentrations—The Company’s operations are conducted primarily across 20 U.S. states and in British Columbia, Canada, with the most significant revenue generated in Texas, Utah, Kansas and Missouri. The Company’s accounts receivable consist primarily of amounts due from customers within these areas. Therefore, collection of these accounts is dependent on the economic conditions in the aforementioned states, as well as specific situations affecting individual customers. Credit granted within the Company’s trade areas has been granted to many customers, and management does not believe that a significant concentration of credit exists with respect to any individual customer or group of customers.
Revenue Recognition	Revenue Recognition— We earn revenue from the sale of products, which primarily include aggregates, cement, ready-mix concrete and asphalt, but also include concrete products and plastics components, and from the provision of services, which are primarily paving and related services, but also include landfill operations, the receipt and disposal of waste that is converted to fuel for use in our cement plants. Products: Revenue for product sales is recognized when the performance obligation is satisfied, which generally is when the product is shipped. Services: We earn revenue from the provision of services, which are primarily paving and related services, which are typically calculated using monthly progress based on a method similar to percentage of completion or a customer’s engineer review of progress. The majority of our construction service contracts are completed within one year, but may occasionally extend beyond this time frame. The majority of our construction service contracts are for work that occurs mostly during the spring, summer and fall. We generally measure progress toward completion on long-term paving and related services contracts based on the proportion of costs incurred to date relative to total estimated costs at completion. Estimating costs to be incurred for revenue recognition involves the use of various estimating techniques to project costs at completion, and in some cases includes estimates of recoveries asserted against the customer for changes in specifications or other disputes.
Earnings per Share	Earnings per Share— The Company computes basic earnings per share attributable to stockholders by dividing income attributable to Summit Inc. by the weighted-average shares of Class A common stock outstanding. Diluted earnings per share reflects the potential dilution beyond shares for basic earnings per share that could occur if securities or other contracts to issue common stock were exercised, converted into common stock, or resulted in the issuance of common stock that would have shared in the Company’s earnings. Since the Class B common stock has no economic value, those shares are not included in the weighted-average common share amount for basic or diluted earnings per share. In addition, as the shares of Class A common stock are issued by Summit Inc., the earnings and equity interests of noncontrolling interests are not included in basic earnings per share.
Leases	We lease construction and office equipment, distribution facilities and office space. Leases with an initial term of 12 months or less, including month to month leases, are not recorded on the balance sheet. Lease expense for short-term leases is recognized on a straight line basis over the lease term. For lease agreements we have entered into or reassessed we combine lease and nonlease components. While we also own mineral leases for mining operations, those leases are outside the scope of Accounting Standards Update No. 2016-2, Leases (Topic 842). Assets acquired under finance leases are included in property, plant and equipment.Many of our leases include options to purchase the leased equipment. The depreciable life of assets and leasehold improvements are limited by the expected lease term, unless there is a transfer of title or purchase option reasonably certain of exercise. Our lease agreements do not contain any material residual value guarantees or material restrictive covenants.
Summit Materials, LLC
Summary Of Significant Accounting Policies And Recent Accounting Pronouncements [Line Items]
Basis of Presentation	Basis of Presentation —These unaudited consolidated financial statements were prepared in accordance with U.S. generally accepted accounting principles (“U.S. GAAP”) for interim financial information, without audit, pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”). Certain information and footnote disclosures typically included in financial statements prepared in accordance with U.S. GAAP have been condensed or omitted pursuant to such rules and regulations. These unaudited consolidated financial statements should be read in conjunction with the Company’s audited consolidated financial statements and the notes thereto as of and for the year ended December 31, 2022. The Company continues to follow the accounting policies set forth in those audited consolidated financial statements. Management believes that these consolidated interim financial statements include all adjustments, normal and recurring in nature, that are necessary to present fairly the financial position of the Company as of April 1, 2023, the results of operations for the three months ended April 1, 2023 and April 2, 2022 and cash flows for the three months ended April 1, 2023 and April 2, 2022.
Use of Estimates	Use of Estimates —Preparation of these consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions. These estimates and the underlying assumptions affect the amounts of assets and liabilities reported, disclosures about contingent assets and liabilities and reported amounts of revenue and expenses. Such estimates include the valuation of accounts receivable, inventories, valuation of deferred tax assets, goodwill, intangibles and other long-lived assets, pension and other postretirement obligations and asset retirement obligations. Estimates also include revenue earned on contracts and costs to complete contracts. Most of the Company’s paving and related services are performed under fixed unit-price contracts with state and local governmental entities. Management regularly evaluates its estimates and assumptions based on historical experience and other factors, including the current economic environment. As future events and their effects cannot be determined with precision, actual results can differ significantly from estimates made. Changes in estimates, including those resulting from continuing changes in the economic environment, are reflected in the Company’s consolidated financial statements when the change in estimate occurs.
Business and Credit Concentrations	Business and Credit Concentrations— The Company’s operations are conducted primarily across 20 U.S. states and in British Columbia, Canada, with the most significant revenue generated in Texas, Utah, Kansas and Missouri. The Company’s accounts receivable consist primarily of amounts due from customers within these areas. Therefore, collection of these accounts is dependent on the economic conditions in the aforementioned states, as well as specific situations affecting individual customers. Credit granted within the Company’s trade areas has been granted to many customers, and management does not believe that a significant concentration of credit exists with respect to any individual customer or group of customers. No single customer accounted for more than 10% of the Company’s total revenue in the three months ended April 1, 2023 or April 2, 2022.
Revenue Recognition	Revenue Recognition— We earn revenue from the sale of products, which primarily include aggregates, cement, ready-mix concrete and asphalt, but also include concrete products and plastics components, and from the provision of services, which are primarily paving and related services, but also include landfill operations, the receipt and disposal of waste that is converted to fuel for use in our cement plants. Products: Revenue for product sales is recognized when the performance obligation is satisfied, which generally is when the product is shipped. Services: We earn revenue from the provision of services, which are primarily paving and related services, which are typically calculated using monthly progress based on a method similar to percentage of completion or a customer’s engineer review of progress. The majority of our construction service contracts are completed within one year, but may occasionally extend beyond this time frame. The majority of our construction service contracts are for work that occurs mostly during the spring, summer and fall. We generally measure progress toward completion on long-term paving and related services contracts based on the proportion of costs incurred to date relative to total estimated costs at completion. Estimating costs to be incurred for revenue recognition involves the use of various estimating techniques to project costs at completion, and in some cases includes estimates of recoveries asserted against the customer for changes in specifications or other disputes.
Leases	We lease construction and office equipment, distribution facilities and office space. Leases with an initial term of 12 months or less, including month to month leases, are not recorded on the balance sheet. Lease expense for short-term leases is recognized on a straight line basis over the lease term. For lease agreements we have entered into or reassessed, we combine lease and nonlease components. While we also own mineral leases for mining operations, those leases are outside the scope of Accounting Standards Update No. 2016-2, Leases (Topic 842). Assets acquired under finance leases are included in property, plant and equipment.

ACQUISITIONS, DISPOSTIONS, GO_2

ACQUISITIONS, DISPOSTIONS, GOODWILL AND INTANGIBLES - (Tables)	3 Months Ended
	Apr. 01, 2023
Business Acquisition [Line Items]
Schedule Of Acquisitions By Region	The following table summarizes the Company’s acquisitions by region and period: Three months ended Year ended April 1, 2023 December 31, 2022 West 1 — East — 2
Schedule of Assets Acquired and Liabilities Assumed	The following table summarizes aggregated information regarding the fair values of the assets acquired and liabilities assumed as of the respective acquisition dates: Three months ended Year ended April 1, 2023 December 31, 2022 Financial assets $ 804 $ 297 Inventories 1,107 161 Property, plant and equipment 27,170 30,041 Other assets 91 1,116 Financial liabilities (59) (1,120) Other long-term liabilities (138) (1,589) Net assets acquired 28,975 28,906 Goodwill 26,910 — Purchase price 55,885 28,906 Acquisition-related liabilities — (6,176) Other (408) — Net cash paid for acquisitions $ 55,477 $ 22,730
Schedule of Goodwill by Reportable Segment and in Total	Changes in the carrying amount of goodwill, by reportable segment, from December 31, 2022 to April 1, 2023 are summarized as follows: West East Cement Total Balance—December 31, 2022 $ 566,389 $ 361,501 $ 204,656 $ 1,132,546 Acquisitions (1) 26,910 — — 26,910 Foreign currency translation adjustments 69 — — 69 Balance—April 1, 2023 $ 593,368 $ 361,501 $ 204,656 $ 1,159,525 _______________________________________________________________________ (1) Reflects goodwill from 2023 acquisitions.
Schedule of Intangible Assets by Type and in Total	The following table shows intangible assets by type and in total: April 1, 2023 December 31, 2022 Gross Accumulated Net Gross Accumulated Net Operating permits $ 38,677 $ (4,498) $ 34,179 $ 38,677 $ (4,109) $ 34,568 Mineral leases 17,766 (7,005) 10,761 18,091 (7,056) 11,035 Reserve rights 25,586 (4,402) 21,184 25,242 (3,872) 21,370 Other 4,884 (523) 4,361 4,877 (466) 4,411 Total intangible assets $ 86,913 $ (16,428) $ 70,485 $ 86,887 $ (15,503) $ 71,384
Schedule of Estimated Amortization Expense for Intangible Assets	The estimated amortization expense for the intangible assets for each of the five years subsequent to April 1, 2023 is as follows: 2023 (nine months) $ 2,984 2024 3,987 2025 3,945 2026 3,897 2027 3,884 2028 3,887 Thereafter 47,901 Total $ 70,485
Summit Materials, LLC
Business Acquisition [Line Items]
Schedule Of Acquisitions By Region	The following table summarizes the Company’s acquisitions by region and period: Three months ended Year ended April 1, 2023 December 31, 2022 West 1 — East — 2
Schedule of Assets Acquired and Liabilities Assumed	The following table summarizes aggregated information regarding the fair values of the assets acquired and liabilities assumed as of the respective acquisition dates: Three months ended Year ended April 1, 2023 December 31, 2022 Financial assets $ 804 $ 297 Inventories 1,107 161 Property, plant and equipment 27,170 30,041 Other assets 91 1,116 Financial liabilities (59) (1,120) Other long-term liabilities (138) (1,589) Net assets acquired 28,975 28,906 Goodwill 26,910 — Purchase price 55,885 28,906 Acquisition-related liabilities — (6,176) Other (408) — Net cash paid for acquisitions $ 55,477 $ 22,730
Schedule of Goodwill by Reportable Segment and in Total	Changes in the carrying amount of goodwill, by reportable segment, from December 31, 2022 to April 1, 2023 are summarized as follows: West East Cement Total Balance—December 31, 2022 $ 567,389 $ 361,501 $ 204,656 $ 1,133,546 Acquisitions (1) 26,910 — — 26,910 Foreign currency translation adjustments 69 — — 69 Balance—April 1, 2023 $ 594,368 $ 361,501 $ 204,656 $ 1,160,525 _______________________________________________________________________ (1) Reflects goodwill from 2023 acquisitions.
Schedule of Intangible Assets by Type and in Total	The following table shows intangible assets by type and in total: April 1, 2023 December 31, 2022 Gross Accumulated Net Gross Accumulated Net Operating permits $ 38,677 $ (4,498) $ 34,179 $ 38,677 $ (4,109) $ 34,568 Mineral leases 17,766 (7,005) 10,761 18,091 (7,056) 11,035 Reserve rights 25,586 (4,402) 21,184 25,242 (3,872) 21,370 Other 4,884 (523) 4,361 4,877 (466) 4,411 Total intangible assets $ 86,913 $ (16,428) $ 70,485 $ 86,887 $ (15,503) $ 71,384
Schedule of Estimated Amortization Expense for Intangible Assets	The estimated amortization expense for the intangible assets for each of the five years subsequent to April 1, 2023 is as follows: 2023 (nine months) $ 2,984 2024 3,987 2025 3,945 2026 3,897 2027 3,884 2028 3,887 Thereafter 47,901 Total $ 70,485

REVENUE RECOGNITION - (Tables)

REVENUE RECOGNITION - (Tables)	3 Months Ended
	Apr. 01, 2023
Revenue from External Customer [Line Items]
Schedule of Revenue by Product	Revenue by product for the three months ended April 1, 2023 and April 2, 2022 is as follows: Three months ended April 1, 2023 April 2, 2022 Revenue by product*: Aggregates $ 143,653 $ 123,393 Cement 49,013 42,554 Ready-mix concrete 138,778 157,563 Asphalt 26,635 17,138 Paving and related services 27,184 30,610 Other 50,125 49,689 Total revenue $ 435,388 $ 420,947 *Revenue from liquid asphalt terminals is included in asphalt revenue.
Schedule of Accounts Receivable, Net	Accounts receivable, net consisted of the following as of April 1, 2023 and December 31, 2022: April 1, 2023 December 31, 2022 Trade accounts receivable $ 222,479 $ 215,766 Construction contract receivables 12,243 37,067 Retention receivables 9,428 11,048 Accounts receivable 244,150 263,881 Less: Allowance for doubtful accounts (7,581) (7,212) Accounts receivable, net $ 236,569 $ 256,669
Summit Materials, LLC
Revenue from External Customer [Line Items]
Schedule of Revenue by Product	Revenue by product for the three months ended April 1, 2023 and April 2, 2022 is as follows: Three months ended April 1, 2023 April 2, 2022 Revenue by product*: Aggregates $ 143,653 $ 123,393 Cement 49,013 42,554 Ready-mix concrete 138,778 157,563 Asphalt 26,635 17,138 Paving and related services 27,184 30,610 Other 50,125 49,689 Total revenue $ 435,388 $ 420,947 *Revenue from liquid asphalt terminals is included in asphalt revenue.
Schedule of Accounts Receivable, Net	Accounts receivable, net consisted of the following as of April 1, 2023 and December 31, 2022: April 1, 2023 December 31, 2022 Trade accounts receivable $ 222,479 $ 215,766 Construction contract receivables 12,243 37,067 Retention receivables 9,428 11,048 Accounts receivable 244,150 263,881 Less: Allowance for doubtful accounts (7,581) (7,212) Accounts receivable, net $ 236,569 $ 256,669

INVENTORIES - (Tables)

INVENTORIES - (Tables)	3 Months Ended
	Apr. 01, 2023
Inventory [Line Items]
Schedule of Components of Inventories	Inventories consisted of the following as of April 1, 2023 and December 31, 2022: April 1, 2023 December 31, 2022 Aggregate stockpiles $ 152,276 $ 148,347 Finished goods 51,884 33,622 Work in process 7,754 8,191 Raw materials 22,650 22,331 Total $ 234,564 $ 212,491
Summit Materials, LLC
Inventory [Line Items]
Schedule of Components of Inventories	Inventories consisted of the following as of April 1, 2023 and December 31, 2022: April 1, 2023 December 31, 2022 Aggregate stockpiles $ 152,276 $ 148,347 Finished goods 51,884 33,622 Work in process 7,754 8,191 Raw materials 22,650 22,331 Total $ 234,564 $ 212,491

ACCRUED EXPENSES - (Tables)

ACCRUED EXPENSES - (Tables)	3 Months Ended
	Apr. 01, 2023
Schedule Of Accrued Expenses [Line Items]
Schedule of Components of Accrued Expenses	Accrued expenses consisted of the following as of April 1, 2023 and December 31, 2022: April 1, 2023 December 31, 2022 Interest $ 11,064 $ 24,625 Payroll and benefits 20,447 34,485 Finance lease obligations 4,224 6,959 Insurance 19,713 18,127 Current portion of TRA liability and non-income taxes 9,536 4,360 Deferred asset purchase payments 5,287 5,131 Professional fees 2,053 924 Other (1) 25,154 25,356 Total $ 97,478 $ 119,967 (1) Consists primarily of current portion of asset retirement obligations and miscellaneous accruals.
Summit Materials, LLC
Schedule Of Accrued Expenses [Line Items]
Schedule of Components of Accrued Expenses	Accrued expenses consisted of the following as of April 1, 2023 and December 31, 2022: April 1, 2023 December 31, 2022 Interest $ 11,064 $ 24,625 Payroll and benefits 20,447 34,485 Finance lease obligations 4,224 6,959 Insurance 19,713 18,127 Non-income taxes 5,621 5,101 Deferred asset purchase payments 5,287 5,131 Professional fees 2,053 924 Other (1) 25,154 25,356 Total $ 93,563 $ 120,708 _______________________________________________________________________ (1) Consists primarily of current portion of asset retirement obligations and miscellaneous accruals.

DEBT - (Tables)

DEBT - (Tables)	3 Months Ended
	Apr. 01, 2023
Debt Instrument [Line Items]
Schedule of Debt	Debt consisted of the following as of April 1, 2023 and December 31, 2022: April 1, 2023 December 31, 2022 Term Loan, due 2027: $508.3 million and $509.6 million, net of $4.8 million and $5.0 million discount at April 1, 2023 and December 31, 2022, respectively $ 503,530 $ 504,549 6 1 ⁄ 2 % Senior Notes, due 2027 300,000 300,000 5 1 ⁄ 4 % Senior Notes, due 2029 700,000 700,000 Total 1,503,530 1,504,549 Current portion of long-term debt 5,096 5,096 Long-term debt $ 1,498,434 $ 1,499,453
Schedule of Contractual Payments of Long-Term Debt	The contractual payments of long-term debt, including current maturities, for the five years subsequent to April 1, 2023, are as follows: 2023 (nine months) $ 3,822 2024 3,822 2025 6,369 2026 5,096 2027 789,177 2028 — Thereafter 700,000 Total 1,508,286 Less: Original issue net discount (4,756) Less: Capitalized loan costs (10,651) Total debt $ 1,492,879
Shedule of Activity for Deferred Financing Fees	The following table presents the activity for the deferred financing fees for the three months ended April 1, 2023 and April 2, 2022: Deferred financing fees Balance—December 31, 2022 $ 11,489 Loan origination fees 1,566 Amortization (616) Write off of deferred financing fees (160) Balance—April 1, 2023 $ 12,279 Balance—January 1, 2022 $ 13,049 Amortization (692) Balance—April 2, 2022 $ 12,357
Summit Materials, LLC
Debt Instrument [Line Items]
Schedule of Debt	Debt consisted of the following as of April 1, 2023 and December 31, 2022: April 1, 2023 December 31, 2022 Term Loan, due 2027: $508.3 million and $509.6 million, net of $4.8 million and $5.0 million discount at April 1, 2023 and December 31, 2022, respectively $ 503,530 $ 504,549 6 1/2 % Senior Notes, due 2027 300,000 300,000 5 1/4 % Senior Notes, due 2029 700,000 700,000 Total 1,503,530 1,504,549 Current portion of long-term debt 5,096 5,096 Long-term debt $ 1,498,434 $ 1,499,453
Schedule of Contractual Payments of Long-Term Debt	The contractual payments of long-term debt, including current maturities, for the five years subsequent to April 1, 2023, are as follows: 2023 (nine months) $ 3,822 2024 3,822 2025 6,369 2026 5,096 2027 789,177 2028 — Thereafter 700,000 Total 1,508,286 Less: Original issue net discount (4,756) Less: Capitalized loan costs (10,651) Total debt $ 1,492,879
Shedule of Activity for Deferred Financing Fees	The following table presents the activity for the deferred financing fees for the three months ended April 1, 2023 and April 2, 2022: Deferred financing fees Balance—December 31, 2022 $ 11,489 Loan origination fees 1,566 Amortization (616) Write off of deferred financing fees (160) Balance—April 1, 2023 $ 12,279 Balance - January 1, 2022 $ 13,049 Amortization (692) Balance -April 2, 2022 $ 12,357

EARNINGS PER SHARE - (Tables)

EARNINGS PER SHARE - (Tables)	3 Months Ended
	Apr. 01, 2023
Earnings Per Share [Abstract]
Schedule of Basic Earnings Per Share	The following table shows the calculation of basic and diluted earnings per share: Three months ended April 1, 2023 April 2, 2022 Net loss attributable to Summit Inc. $ (30,804) $ (34,292) Weighted average shares of Class A stock outstanding 118,564,556 120,756,555 Add: Nonvested restricted stock awards of retirement eligible shares 115,100 160,125 Weighted average shares outstanding 118,679,656 120,916,680 Basic loss per share $ (0.26) $ (0.28) Diluted net loss attributable to Summit Inc. $ (30,804) $ (34,292) Weighted average shares outstanding 118,679,656 120,916,680 Add: weighted average of LP Units — — Add: stock options — — Add: warrants — — Add: restricted stock units — — Add: performance stock units — — Weighted average dilutive shares outstanding 118,679,656 120,916,680 Diluted loss per share $ (0.26) $ (0.28)
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share	Excluded from the above calculations were the shares noted below as they were antidilutive: Three months ended April 1, 2023 April 2, 2022 Antidilutive shares: LP Units 1,311,257 1,314,006 Time-vesting stock options 279,680 290,944 Warrants 31,519 31,519 Time-vesting restricted stock units 1,051,844 1,379,251 Market-based restricted stock units 439,704 416,096

STOCKHOLDERS' EQUITY_MEMBERS'_2

STOCKHOLDERS' EQUITY/MEMBERS' INTEREST - (Tables)	3 Months Ended
	Apr. 01, 2023
Schedule of Capitalization, Equity [Line Items]
Schedule of Changes in Ownership of Summit Holdings	The following table summarizes the changes in our ownership of Summit Holdings: Summit Inc. LP Units Total Summit Inc. Balance — December 31, 2022 118,408,655 1,312,004 119,720,659 98.9 % Exchanges during period 2,000 (2,000) — Stock option exercises 902 — 902 Other equity transactions 407,114 — 407,114 Balance — April 1, 2023 118,818,671 1,310,004 120,128,675 98.9 % Balance — January 1, 2022 120,684,322 1,314,006 121,998,328 98.9 % Stock option exercises 1,589 — 1,589 Repurchases of common stock (1,506,878) — (1,506,878) Other equity transactions 842,029 — 842,029 Balance — April 2, 2022 120,021,062 1,314,006 121,335,068 98.9 %
Schedule of Changes in Each Component of Accumulated Other Comprehensive Income (Loss)	The changes in each component of accumulated other comprehensive income (loss) consisted of the following: Change in Foreign currency Accumulated Balance — December 31, 2022 $ 6,356 $ (3,272) $ 3,084 Foreign currency translation adjustment, net of tax — 161 161 Balance — April 1, 2023 $ 6,356 $ (3,111) $ 3,245 Balance — January 1, 2022 $ 1,508 $ 5,575 $ 7,083 Foreign currency translation adjustment, net of tax — 1,306 1,306 Balance — April 2, 2022 $ 1,508 $ 6,881 $ 8,389
Summit Materials, LLC
Schedule of Capitalization, Equity [Line Items]
Schedule of Changes in Each Component of Accumulated Other Comprehensive Income (Loss)	The changes in each component of accumulated other comprehensive income (loss) consisted of the following: Accumulated Foreign currency other Change in translation comprehensive retirement plans adjustments (loss) income Balance — December 31, 2022 $ (762) $ (20,614) $ (21,376) Foreign currency translation adjustment — 203 203 Balance — April 1, 2023 $ (762) $ (20,411) $ (21,173) Balance — January 1, 2022 $ (7,243) $ (8,783) $ (16,026) Foreign currency translation adjustment — 1,744 1,744 Balance — April 2, 2022 $ (7,243) $ (7,039) $ (14,282)

SUPPLEMENTAL CASH FLOW INFORM_2

SUPPLEMENTAL CASH FLOW INFORMATION - (Tables)	3 Months Ended
	Apr. 01, 2023
Schedule Of Cash Flow Supplemental [Line Items]
Schedule of Supplemental Cash Flow Information	Supplemental cash flow information is as follows: Three months ended April 1, 2023 April 2, 2022 Cash payments: Interest $ 37,970 $ 31,789 Payments for income taxes, net 2,088 1,542 Operating cash payments on operating leases 2,402 2,455 Operating cash payments on finance leases 149 372 Finance cash payments on finance leases 4,011 5,949 Non cash investing and financing activities: Accrued liabilities for purchases of property, plant and equipment $ 21,911 $ 23,610 Right of use assets obtained in exchange for operating lease obligations 679 5,416 Right of use assets obtained in exchange for finance leases obligations 413 248 Exchange of LP Units to shares of Class A common stock 60 —
Summit Materials, LLC
Schedule Of Cash Flow Supplemental [Line Items]
Schedule of Supplemental Cash Flow Information	Supplemental cash flow information is as follows: Three months ended April 1, 2023 April 2, 2022 Cash payments: Interest $ 37,970 $ 31,789 Payments for income taxes, net 2,088 1,542 Operating cash payments on operating leases 2,402 2,455 Operating cash payments on finance leases 149 372 Finance cash payments on finance leases 4,011 5,949 Non cash investing and financing activities: Accrued liabilities for purchases of property, plant and equipment $ 21,911 $ 23,610 Right of use assets obtained in exchange for operating lease obligations 679 5,416 Right of use assets obtained in exchange for finance leases obligations 413 248

LEASES - (Tables)

LEASES - (Tables)	3 Months Ended
	Apr. 01, 2023
Lessee, Lease, Description [Line Items]
Schedule of Lease Cost	The components of lease expense were as follows: Three months ended April 1, 2023 April 2, 2022 Operating lease cost $ 2,641 $ 2,512 Variable lease cost 30 113 Short-term lease cost 7,270 8,248 Financing lease cost: Amortization of right-of-use assets 818 1,986 Interest on lease liabilities 148 369 Total lease cost $ 10,907 $ 13,228 April 1, 2023 December 31, 2022 Supplemental balance sheet information related to leases: Operating leases: Operating lease right-of-use assets $ 36,638 $ 37,889 Current operating lease liabilities $ 7,515 $ 7,296 Noncurrent operating lease liabilities 34,315 35,737 Total operating lease liabilities $ 41,830 $ 43,033 Finance leases: Property and equipment, gross $ 24,565 $ 32,119 Less accumulated depreciation (11,279) (14,992) Property and equipment, net $ 13,286 $ 17,127 Current finance lease liabilities $ 4,224 $ 6,959 Long-term finance lease liabilities 6,303 7,167 Total finance lease liabilities $ 10,527 $ 14,126 Weighted average remaining lease term (years): Operating leases 9.0 9.1 Finance lease 3.5 2.8 Weighted average discount rate: Operating leases 4.7 % 4.7 % Finance leases 5.6 % 5.3 % Maturities of lease liabilities, as of April 1, 2023, were as follows: Operating Leases Finance Leases 2023 (nine months) $ 6,929 $ 3,106 2024 8,289 3,433 2025 6,377 2,435 2026 5,009 990 2027 4,161 760 2028 3,223 513 Thereafter 16,787 570 Total lease payments 50,775 11,807 Less imputed interest (8,945) (1,280) Present value of lease payments $ 41,830 $ 10,527
Schedule of Lease Assets and Liabilities	The components of lease expense were as follows: Three months ended April 1, 2023 April 2, 2022 Operating lease cost $ 2,641 $ 2,512 Variable lease cost 30 113 Short-term lease cost 7,270 8,248 Financing lease cost: Amortization of right-of-use assets 818 1,986 Interest on lease liabilities 148 369 Total lease cost $ 10,907 $ 13,228 April 1, 2023 December 31, 2022 Supplemental balance sheet information related to leases: Operating leases: Operating lease right-of-use assets $ 36,638 $ 37,889 Current operating lease liabilities $ 7,515 $ 7,296 Noncurrent operating lease liabilities 34,315 35,737 Total operating lease liabilities $ 41,830 $ 43,033 Finance leases: Property and equipment, gross $ 24,565 $ 32,119 Less accumulated depreciation (11,279) (14,992) Property and equipment, net $ 13,286 $ 17,127 Current finance lease liabilities $ 4,224 $ 6,959 Long-term finance lease liabilities 6,303 7,167 Total finance lease liabilities $ 10,527 $ 14,126 Weighted average remaining lease term (years): Operating leases 9.0 9.1 Finance lease 3.5 2.8 Weighted average discount rate: Operating leases 4.7 % 4.7 % Finance leases 5.6 % 5.3 % Maturities of lease liabilities, as of April 1, 2023, were as follows: Operating Leases Finance Leases 2023 (nine months) $ 6,929 $ 3,106 2024 8,289 3,433 2025 6,377 2,435 2026 5,009 990 2027 4,161 760 2028 3,223 513 Thereafter 16,787 570 Total lease payments 50,775 11,807 Less imputed interest (8,945) (1,280) Present value of lease payments $ 41,830 $ 10,527
Schedule of Finance Lease Liability Maturities	The components of lease expense were as follows: Three months ended April 1, 2023 April 2, 2022 Operating lease cost $ 2,641 $ 2,512 Variable lease cost 30 113 Short-term lease cost 7,270 8,248 Financing lease cost: Amortization of right-of-use assets 818 1,986 Interest on lease liabilities 148 369 Total lease cost $ 10,907 $ 13,228 April 1, 2023 December 31, 2022 Supplemental balance sheet information related to leases: Operating leases: Operating lease right-of-use assets $ 36,638 $ 37,889 Current operating lease liabilities $ 7,515 $ 7,296 Noncurrent operating lease liabilities 34,315 35,737 Total operating lease liabilities $ 41,830 $ 43,033 Finance leases: Property and equipment, gross $ 24,565 $ 32,119 Less accumulated depreciation (11,279) (14,992) Property and equipment, net $ 13,286 $ 17,127 Current finance lease liabilities $ 4,224 $ 6,959 Long-term finance lease liabilities 6,303 7,167 Total finance lease liabilities $ 10,527 $ 14,126 Weighted average remaining lease term (years): Operating leases 9.0 9.1 Finance lease 3.5 2.8 Weighted average discount rate: Operating leases 4.7 % 4.7 % Finance leases 5.6 % 5.3 % Maturities of lease liabilities, as of April 1, 2023, were as follows: Operating Leases Finance Leases 2023 (nine months) $ 6,929 $ 3,106 2024 8,289 3,433 2025 6,377 2,435 2026 5,009 990 2027 4,161 760 2028 3,223 513 Thereafter 16,787 570 Total lease payments 50,775 11,807 Less imputed interest (8,945) (1,280) Present value of lease payments $ 41,830 $ 10,527
Schedule of Operating Lease Liability Maturities	The components of lease expense were as follows: Three months ended April 1, 2023 April 2, 2022 Operating lease cost $ 2,641 $ 2,512 Variable lease cost 30 113 Short-term lease cost 7,270 8,248 Financing lease cost: Amortization of right-of-use assets 818 1,986 Interest on lease liabilities 148 369 Total lease cost $ 10,907 $ 13,228 April 1, 2023 December 31, 2022 Supplemental balance sheet information related to leases: Operating leases: Operating lease right-of-use assets $ 36,638 $ 37,889 Current operating lease liabilities $ 7,515 $ 7,296 Noncurrent operating lease liabilities 34,315 35,737 Total operating lease liabilities $ 41,830 $ 43,033 Finance leases: Property and equipment, gross $ 24,565 $ 32,119 Less accumulated depreciation (11,279) (14,992) Property and equipment, net $ 13,286 $ 17,127 Current finance lease liabilities $ 4,224 $ 6,959 Long-term finance lease liabilities 6,303 7,167 Total finance lease liabilities $ 10,527 $ 14,126 Weighted average remaining lease term (years): Operating leases 9.0 9.1 Finance lease 3.5 2.8 Weighted average discount rate: Operating leases 4.7 % 4.7 % Finance leases 5.6 % 5.3 % Maturities of lease liabilities, as of April 1, 2023, were as follows: Operating Leases Finance Leases 2023 (nine months) $ 6,929 $ 3,106 2024 8,289 3,433 2025 6,377 2,435 2026 5,009 990 2027 4,161 760 2028 3,223 513 Thereafter 16,787 570 Total lease payments 50,775 11,807 Less imputed interest (8,945) (1,280) Present value of lease payments $ 41,830 $ 10,527
Summit Materials, LLC
Lessee, Lease, Description [Line Items]
Schedule of Lease Cost	The components of lease expense were as follows: Three months ended April 1, 2023 April 2, 2022 Operating lease cost $ 2,641 $ 2,512 Variable lease cost 30 113 Short-term lease cost 7,270 8,248 Financing lease cost: Amortization of right-of-use assets 818 1,986 Interest on lease liabilities 148 369 Total lease cost $ 10,907 $ 13,228 April 1, 2023 December 31, 2022 Supplemental balance sheet information related to leases: Operating leases: Operating lease right-of-use assets $ 36,638 $ 37,889 Current operating lease liabilities $ 7,515 $ 7,296 Noncurrent operating lease liabilities 34,315 35,737 Total operating lease liabilities $ 41,830 $ 43,033 Finance leases: Property and equipment, gross $ 24,565 $ 32,119 Less accumulated depreciation (11,279) (14,992) Property and equipment, net $ 13,286 $ 17,127 Current finance lease liabilities $ 4,224 $ 6,959 Long-term finance lease liabilities 6,303 7,167 Total finance lease liabilities $ 10,527 $ 14,126 Weighted average remaining lease term (years): Operating leases 9.0 9.1 Finance lease 3.5 2.8 Weighted average discount rate: Operating leases 4.7 % 4.7 % Finance leases 5.6 % 5.3 % Maturities of lease liabilities, as of April 1, 2023, were as follows: Operating Leases Finance Leases 2023 (nine months) $ 6,929 $ 3,106 2024 8,289 3,433 2025 6,377 2,435 2026 5,009 990 2027 4,161 760 2028 3,223 513 Thereafter 16,787 570 Total lease payments 50,775 11,807 Less imputed interest (8,945) (1,280) Present value of lease payments $ 41,830 $ 10,527
Schedule of Lease Assets and Liabilities	The components of lease expense were as follows: Three months ended April 1, 2023 April 2, 2022 Operating lease cost $ 2,641 $ 2,512 Variable lease cost 30 113 Short-term lease cost 7,270 8,248 Financing lease cost: Amortization of right-of-use assets 818 1,986 Interest on lease liabilities 148 369 Total lease cost $ 10,907 $ 13,228 April 1, 2023 December 31, 2022 Supplemental balance sheet information related to leases: Operating leases: Operating lease right-of-use assets $ 36,638 $ 37,889 Current operating lease liabilities $ 7,515 $ 7,296 Noncurrent operating lease liabilities 34,315 35,737 Total operating lease liabilities $ 41,830 $ 43,033 Finance leases: Property and equipment, gross $ 24,565 $ 32,119 Less accumulated depreciation (11,279) (14,992) Property and equipment, net $ 13,286 $ 17,127 Current finance lease liabilities $ 4,224 $ 6,959 Long-term finance lease liabilities 6,303 7,167 Total finance lease liabilities $ 10,527 $ 14,126 Weighted average remaining lease term (years): Operating leases 9.0 9.1 Finance lease 3.5 2.8 Weighted average discount rate: Operating leases 4.7 % 4.7 % Finance leases 5.6 % 5.3 % Maturities of lease liabilities, as of April 1, 2023, were as follows: Operating Leases Finance Leases 2023 (nine months) $ 6,929 $ 3,106 2024 8,289 3,433 2025 6,377 2,435 2026 5,009 990 2027 4,161 760 2028 3,223 513 Thereafter 16,787 570 Total lease payments 50,775 11,807 Less imputed interest (8,945) (1,280) Present value of lease payments $ 41,830 $ 10,527
Schedule of Finance Lease Liability Maturities	The components of lease expense were as follows: Three months ended April 1, 2023 April 2, 2022 Operating lease cost $ 2,641 $ 2,512 Variable lease cost 30 113 Short-term lease cost 7,270 8,248 Financing lease cost: Amortization of right-of-use assets 818 1,986 Interest on lease liabilities 148 369 Total lease cost $ 10,907 $ 13,228 April 1, 2023 December 31, 2022 Supplemental balance sheet information related to leases: Operating leases: Operating lease right-of-use assets $ 36,638 $ 37,889 Current operating lease liabilities $ 7,515 $ 7,296 Noncurrent operating lease liabilities 34,315 35,737 Total operating lease liabilities $ 41,830 $ 43,033 Finance leases: Property and equipment, gross $ 24,565 $ 32,119 Less accumulated depreciation (11,279) (14,992) Property and equipment, net $ 13,286 $ 17,127 Current finance lease liabilities $ 4,224 $ 6,959 Long-term finance lease liabilities 6,303 7,167 Total finance lease liabilities $ 10,527 $ 14,126 Weighted average remaining lease term (years): Operating leases 9.0 9.1 Finance lease 3.5 2.8 Weighted average discount rate: Operating leases 4.7 % 4.7 % Finance leases 5.6 % 5.3 % Maturities of lease liabilities, as of April 1, 2023, were as follows: Operating Leases Finance Leases 2023 (nine months) $ 6,929 $ 3,106 2024 8,289 3,433 2025 6,377 2,435 2026 5,009 990 2027 4,161 760 2028 3,223 513 Thereafter 16,787 570 Total lease payments 50,775 11,807 Less imputed interest (8,945) (1,280) Present value of lease payments $ 41,830 $ 10,527
Schedule of Operating Lease Liability Maturities	The components of lease expense were as follows: Three months ended April 1, 2023 April 2, 2022 Operating lease cost $ 2,641 $ 2,512 Variable lease cost 30 113 Short-term lease cost 7,270 8,248 Financing lease cost: Amortization of right-of-use assets 818 1,986 Interest on lease liabilities 148 369 Total lease cost $ 10,907 $ 13,228 April 1, 2023 December 31, 2022 Supplemental balance sheet information related to leases: Operating leases: Operating lease right-of-use assets $ 36,638 $ 37,889 Current operating lease liabilities $ 7,515 $ 7,296 Noncurrent operating lease liabilities 34,315 35,737 Total operating lease liabilities $ 41,830 $ 43,033 Finance leases: Property and equipment, gross $ 24,565 $ 32,119 Less accumulated depreciation (11,279) (14,992) Property and equipment, net $ 13,286 $ 17,127 Current finance lease liabilities $ 4,224 $ 6,959 Long-term finance lease liabilities 6,303 7,167 Total finance lease liabilities $ 10,527 $ 14,126 Weighted average remaining lease term (years): Operating leases 9.0 9.1 Finance lease 3.5 2.8 Weighted average discount rate: Operating leases 4.7 % 4.7 % Finance leases 5.6 % 5.3 % Maturities of lease liabilities, as of April 1, 2023, were as follows: Operating Leases Finance Leases 2023 (nine months) $ 6,929 $ 3,106 2024 8,289 3,433 2025 6,377 2,435 2026 5,009 990 2027 4,161 760 2028 3,223 513 Thereafter 16,787 570 Total lease payments 50,775 11,807 Less imputed interest (8,945) (1,280) Present value of lease payments $ 41,830 $ 10,527

FAIR VALUE - (Tables)

FAIR VALUE - (Tables)	3 Months Ended
	Apr. 01, 2023
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Schedule of Contingent Consideration and Derivatives Measured at Fair Value	The fair value of contingent consideration as of April 1, 2023 and December 31, 2022 was: April 1, 2023 December 31, 2022 Current portion of acquisition-related liabilities and Accrued expenses: Contingent consideration $ 336 $ 336 Acquisition-related liabilities and Other noncurrent liabilities: Contingent consideration $ 4,961 $ 4,981
Schedule of Carrying Value and Fair Value of Financial Instruments	The carrying value and fair value of these financial instruments as of April 1, 2023 and December 31, 2022 was: April 1, 2023 December 31, 2022 Fair Value Carrying Value Fair Value Carrying Value Level 1 Long-term debt(1) $ 1,457,171 $ 1,503,530 $ 1,447,673 $ 1,504,549 Level 3 Current portion of deferred consideration and noncompete obligations(2) 6,907 6,907 13,382 13,382 Long term portion of deferred consideration and noncompete obligations(3) 17,978 17,978 24,070 24,070 (1) $5.1 million was included in current portion of debt as of April 1, 2023 and December 31, 2022. (2) Included in current portion of acquisition-related liabilities on the consolidated balance sheets. (3) Included in acquisition-related liabilities on the consolidated balance sheets.
Summit Materials, LLC
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Schedule of Contingent Consideration and Derivatives Measured at Fair Value	The fair value of contingent consideration as of April 1, 2023 and December 31, 2022 was: April 1, 2023 December 31, 2022 Current portion of acquisition-related liabilities and Accrued expenses: Contingent consideration $ 336 $ 336 Acquisition-related liabilities and Other noncurrent liabilities: Contingent consideration $ 4,961 $ 4,981
Schedule of Carrying Value and Fair Value of Financial Instruments	The carrying value and fair value of these financial instruments as of April 1, 2023 and December 31, 2022 was: April 1, 2023 December 31, 2022 Fair Value Carrying Value Fair Value Carrying Value Level 1 Long-term debt(1) $ 1,457,171 $ 1,503,530 $ 1,447,673 $ 1,504,549 Level 3 Current portion of deferred consideration and noncompete obligations(2) 6,907 6,907 13,382 13,382 Long term portion of deferred consideration and noncompete obligations(3) 17,978 17,978 24,070 24,070 (1) $5.1 million was included in current portion of debt as of April 1, 2023 and December 31, 2022. (2) Included in current portion of acquisition-related liabilities on the consolidated balance sheets. (3) Included in acquisition-related liabilities on the consolidated balance sheets.

SEGMENT INFORMATION - (Tables)

SEGMENT INFORMATION - (Tables)	3 Months Ended
	Apr. 01, 2023
Segment Reporting Information [Line Items]
Schedule of Financial Data for Company's Reportable Business Segments	The following tables display selected financial data for the Company’s reportable business segments as of April 1, 2023 and December 31, 2022 and for the three months ended April 1, 2023 and April 2, 2022: Three months ended April 1, 2023 April 2, 2022 Revenue*: West $ 250,882 $ 252,232 East 130,389 122,490 Cement 54,117 46,225 Total revenue $ 435,388 $ 420,947 *Intercompany sales are immaterial and the presentation above only reflects sales to external customers. Three months ended April 1, 2023 April 2, 2022 Loss from operations before taxes $ (37,678) $ (39,543) Interest expense 27,420 20,149 Depreciation, depletion and amortization 50,188 50,479 Accretion 706 714 Loss on debt financings 493 — Gain on sale of businesses — (14,205) Non-cash compensation 4,708 5,422 Other (4,636) 247 Total Adjusted EBITDA $ 41,201 $ 23,263 Total Adjusted EBITDA by Segment: West $ 32,678 $ 32,692 East 18,852 8,136 Cement 10 (5,819) Corporate and other (10,339) (11,746) Total Adjusted EBITDA $ 41,201 $ 23,263 Three months ended April 1, 2023 April 2, 2022 Purchases of property, plant and equipment West $ 38,174 $ 26,874 East 15,518 24,326 Cement 6,996 6,115 Total reportable segments 60,688 57,315 Corporate and other 2,896 459 Total purchases of property, plant and equipment $ 63,584 $ 57,774 Three months ended April 1, 2023 April 2, 2022 Depreciation, depletion, amortization and accretion: West $ 26,373 $ 24,575 East 15,535 18,295 Cement 7,998 7,574 Total reportable segments 49,906 50,444 Corporate and other 988 749 Total depreciation, depletion, amortization and accretion $ 50,894 $ 51,193 April 1, 2023 December 31, 2022 Total assets: West $ 1,632,437 $ 1,565,776 East 1,155,539 1,151,223 Cement 885,608 873,604 Total reportable segments 3,673,584 3,590,603 Corporate and other 541,356 665,089 Total $ 4,214,940 $ 4,255,692
Summit Materials, LLC
Segment Reporting Information [Line Items]
Schedule of Financial Data for Company's Reportable Business Segments	The following tables display selected financial data for the Company’s reportable business segments as of April 1, 2023 and December 31, 2022 and for the three months ended April 1, 2023 and April 2, 2022: Three months ended April 1, 2023 April 2, 2022 Revenue*: West $ 250,882 $ 252,232 East 130,389 122,490 Cement 54,117 46,225 Total revenue $ 435,388 $ 420,947 *Intercompany sales are immaterial and the presentation above only reflects sales to external customers. Three months ended April 1, 2023 April 2, 2022 Loss from operations before taxes $ (37,678) $ (39,543) Interest expense 27,420 20,149 Depreciation, depletion and amortization 50,188 50,479 Accretion 706 714 Loss on debt financings 493 — Gain on sale of businesses — (14,205) Non-cash compensation 4,708 5,422 Other (4,636) 247 Total Adjusted EBITDA $ 41,201 $ 23,263 Total Adjusted EBITDA by Segment: West $ 32,678 $ 32,692 East 18,852 8,136 Cement 10 (5,819) Corporate and other (10,339) (11,746) Total Adjusted EBITDA $ 41,201 $ 23,263 Three months ended April 1, 2023 April 2, 2022 Purchases of property, plant and equipment West $ 38,174 $ 26,874 East 15,518 24,326 Cement 6,996 6,115 Total reportable segments 60,688 57,315 Corporate and other 2,896 459 Total purchases of property, plant and equipment $ 63,584 $ 57,774 Three months ended April 1, 2023 April 2, 2022 Depreciation, depletion, amortization and accretion: West $ 26,373 $ 24,575 East 15,535 18,295 Cement 7,998 7,574 Total reportable segments 49,906 50,444 Corporate and other 988 749 Total depreciation, depletion, amortization and accretion $ 50,894 $ 51,193 April 1, 2023 December 31, 2022 Total assets: West $ 1,632,437 $ 1,565,776 East 1,155,539 1,151,223 Cement 885,608 873,604 Total reportable segments 3,673,584 3,590,603 Corporate and other 397,889 529,103 Total $ 4,071,473 $ 4,119,706

GUARANTOR AND NON-GUARANTOR F_2

GUARANTOR AND NON-GUARANTOR FINANCIAL INFORMATION - (Tables) - Summit Materials, LLC	3 Months Ended
	Apr. 01, 2023
Schedule of Condensed Consolidating Balance Sheets	Condensed Consolidating Balance Sheets April 1, 2023 Non- Issuers Guarantors Guarantors Eliminations Consolidated Assets Current assets: Cash and cash equivalents $ 352,581 $ 2,713 $ 27,633 $ (3,470) $ 379,457 Accounts receivable, net 2,066 213,534 21,042 (73) 236,569 Intercompany receivables 320,454 1,935,271 — (2,255,725) — Cost and estimated earnings in excess of billings — 12,689 1,698 — 14,387 Inventories — 228,260 6,304 — 234,564 Other current assets 11,751 13,094 1,068 — 25,913 Total current assets 686,852 2,405,561 57,745 (2,259,268) 890,890 Property, plant and equipment, net 23,419 1,762,834 81,159 — 1,867,412 Goodwill — 1,103,845 56,680 — 1,160,525 Intangible assets, net — 66,125 4,360 — 70,485 Operating lease right-of-use assets 4,463 27,447 4,728 — 36,638 Other assets 4,671,809 206,025 1,258 (4,833,569) 45,523 Total assets $ 5,386,543 $ 5,571,837 $ 205,930 $ (7,092,837) $ 4,071,473 Liabilities and Members' Interest Current liabilities: Current portion of debt $ 5,096 $ — $ — $ — $ 5,096 Current portion of acquisition-related liabilities — 7,243 — — 7,243 Accounts payable 3,711 125,906 9,272 (73) 138,816 Accrued expenses 37,547 57,127 2,359 (3,470) 93,563 Current operating lease liabilities 981 5,841 693 — 7,515 Intercompany payables 1,731,965 521,961 1,799 (2,255,725) — Billings in excess of costs and estimated earnings — 3,684 549 — 4,233 Total current liabilities 1,779,300 721,762 14,672 (2,259,268) 256,466 Long-term debt 1,487,783 — — — 1,487,783 Acquisition-related liabilities — 22,939 — — 22,939 Noncurrent operating lease liabilities 8,493 21,953 3,869 — 34,315 Other noncurrent liabilities 5,821 206,075 117,349 (164,421) 164,824 Total liabilities 3,281,397 972,729 135,890 (2,423,689) 1,966,327 Total members' interest 2,105,146 4,599,108 70,040 (4,669,148) 2,105,146 Total liabilities and members' interest $ 5,386,543 $ 5,571,837 $ 205,930 $ (7,092,837) $ 4,071,473 Condensed Consolidating Balance Sheets December 31, 2022 Non- Issuers Guarantors Guarantors Eliminations Consolidated Assets Current assets: Cash and cash equivalents $ 498,307 $ 2,864 $ 26,298 $ (7,018) $ 520,451 Accounts receivable, net 1,528 233,039 22,127 (25) 256,669 Intercompany receivables 329,744 1,937,390 — (2,267,134) — Cost and estimated earnings in excess of billings — 5,861 649 — 6,510 Inventories — 206,418 6,073 — 212,491 Other current assets 4,755 16,341 1,159 — 22,255 Total current assets 834,334 2,401,913 56,306 (2,274,177) 1,018,376 Property, plant and equipment, net 21,306 1,710,972 81,424 — 1,813,702 Goodwill — 1,076,935 56,611 — 1,133,546 Intangible assets, net — 66,972 4,412 — 71,384 Operating lease right-of-use assets 4,665 28,310 4,914 — 37,889 Other assets 4,599,488 204,644 1,220 (4,760,543) 44,809 Total assets $ 5,459,793 $ 5,489,746 $ 204,887 $ (7,034,720) $ 4,119,706 Liabilities and Members' Interest Current liabilities: Current portion of debt $ 5,096 $ — $ — $ — $ 5,096 Current portion of acquisition-related liabilities — 13,718 — — 13,718 Accounts payable 3,553 93,096 7,806 (25) 104,430 Accrued expenses 54,417 70,433 2,876 (7,018) 120,708 Current operating lease liabilities 921 5,637 738 — 7,296 Intercompany payables 1,750,352 513,494 3,288 (2,267,134) — Billings in excess of costs and estimated earnings — 4,956 783 — 5,739 Total current liabilities 1,814,339 701,334 15,491 (2,274,177) 256,987 Long-term debt 1,488,569 — — — 1,488,569 Acquisition-related liabilities — 29,051 — — 29,051 Noncurrent operating lease liabilities 8,726 22,871 4,140 — 35,737 Other noncurrent liabilities 5,009 208,185 117,439 (164,421) 166,212 Total liabilities 3,316,643 961,441 137,070 (2,438,598) 1,976,556 Total members' interest 2,143,150 4,528,305 67,817 (4,596,122) 2,143,150 Total liabilities and members' interest $ 5,459,793 $ 5,489,746 $ 204,887 $ (7,034,720) $ 4,119,706
Schedule of Condensed Consolidating Statements of Operations	Condensed Consolidating Statements of Operations For the three months ended April 1, 2023 Non- Issuers Guarantors Guarantors Eliminations Consolidated Revenue $ — $ 408,422 $ 27,761 $ (795) $ 435,388 Cost of revenue (excluding items shown separately below) — 335,210 19,622 (795) 354,037 General and administrative expenses 15,221 28,947 1,764 — 45,932 Depreciation, depletion, amortization and accretion 988 47,153 2,753 — 50,894 Operating (loss) income (16,209) (2,888) 3,622 — (15,475) Other income, net (19,147) (277) (508) 14,715 (5,217) Interest expense (income) 39,845 (13,795) 1,370 — 27,420 (Loss) income from operation before taxes (36,907) 11,184 2,760 (14,715) (37,678) Income tax expense (benefit) 304 (1,510) 739 — (467) Net (loss) income attributable to Summit LLC $ (37,211) $ 12,694 $ 2,021 $ (14,715) $ (37,211) Comprehensive (loss) income attributable to member of Summit Materials, LLC $ (37,008) $ 12,694 $ 1,818 $ (14,512) $ (37,008) Condensed Consolidating Statements of Operations For the three months ended April 2, 2022 Non- Issuers Guarantors Guarantors Eliminations Consolidated Revenue $ — $ 395,180 $ 27,097 $ (1,330) $ 420,947 Cost of revenue (excluding items shown separately below) — 334,264 20,446 (1,330) 353,380 General and administrative expenses 17,304 31,672 1,693 — 50,669 Depreciation, depletion, amortization and accretion 750 47,496 2,947 — 51,193 Operating (loss) income (18,054) (18,252) 2,011 — (34,295) Other income, net (5,919) (552) (7) 5,782 (696) Interest expense (income) 33,902 (15,123) 1,370 — 20,149 Gain on sale of business — (14,205) — — (14,205) (Loss) income from operation before taxes (46,037) 11,628 648 (5,782) (39,543) Income tax expense 350 6,318 176 — 6,844 Net (loss) income attributable to Summit LLC $ (46,387) $ 5,310 $ 472 $ (5,782) $ (46,387) Comprehensive (loss) income attributable to member of Summit Materials, LLC $ (44,643) $ 5,310 $ (1,272) $ (4,038) $ (44,643)
Schedule of Condensed Consolidating Statements of Cash Flows	Condensed Consolidating Statements of Cash Flows For the three months ended April 1, 2023 Non- Issuers Guarantors Guarantors Eliminations Consolidated Net cash (used in) provided by operating activities $ (55,528) $ 49,394 $ 6,469 $ — $ 335 Cash flow from investing activities: Acquisitions, net of cash acquired — (55,477) — — (55,477) Purchase of property, plant and equipment (2,895) (58,356) (2,333) — (63,584) Proceeds from the sale of property, plant, and equipment — 1,777 — — 1,777 Other — (1,045) — — (1,045) Net cash (used for) provided by investing activities (2,895) (113,101) (2,333) — (118,329) Cash flow from financing activities: Capital distributions to member (55,870) 55,885 — — 15 Loans received from and payments made on loans from other Summit Companies (25,853) 24,951 (2,646) 3,548 — Payments on long-term debt (1,274) (3,140) — — (4,414) Payments on acquisition-related liabilities — (11,374) — — (11,374) Debt issuance costs (1,566) — — — (1,566) Other (2,740) (2,766) (213) — (5,719) Net cash (used in) provided by financing activities (87,303) 63,556 (2,859) 3,548 (23,058) Impact of cash on foreign currency — — 58 — 58 Net (decrease) increase in cash (145,726) (151) 1,335 3,548 (140,994) Cash — Beginning of period 498,307 2,864 26,298 (7,018) 520,451 Cash — End of period $ 352,581 $ 2,713 $ 27,633 $ (3,470) $ 379,457 Condensed Consolidating Statements of Cash Flows For the three months ended April 2, 2022 Non- Issuers Guarantors Guarantors Eliminations Consolidated Net cash (used in) provided by operating activities $ (48,551) $ 25,873 $ 5,965 $ — $ (16,713) Cash flow from investing activities: Purchase of property, plant and equipment (459) (55,522) (1,793) — (57,774) Proceeds from the sale of property, plant, and equipment — 1,360 79 — 1,439 Proceeds from the sale of a business — 47,821 — — 47,821 Other — (857) — — (857) Net cash used for investing activities (459) (7,198) (1,714) — (9,371) Cash flow from financing activities: Capital distributions to member (47,482) — — — (47,482) Loans received from and payments made on loans from other Summit Companies 4,703 (2,052) (3,353) 702 — Payments on long-term debt (1,588) (6,015) — — (7,603) Payments on acquisition-related liabilities — (11,397) — — (11,397) Other (1,180) — — — (1,180) Net cash used in financing activities (45,547) (19,464) (3,353) 702 (67,662) Impact of cash on foreign currency — — 177 — 177 Net (decrease) increase in cash (94,557) (789) 1,075 702 (93,569) Cash — Beginning of period 365,044 2,264 18,337 (4,684) 380,961 Cash — End of period $ 270,487 $ 1,475 $ 19,412 $ (3,982) $ 287,392

SUMMARY OF ORGANIZATION AND S_3

SUMMARY OF ORGANIZATION AND SIGNIFICANT ACCOUNTING POLICIES - General Information (Details)	3 Months Ended
	Apr. 01, 2023 segment cementPlant
Summary Of Significant Accounting Policies And Recent Accounting Pronouncements [Line Items]
Number of operating segments	3
Number of reportable segments	3
Cement plant
Summary Of Significant Accounting Policies And Recent Accounting Pronouncements [Line Items]
Number of plants | cementPlant	2
Summit Materials, LLC
Summary Of Significant Accounting Policies And Recent Accounting Pronouncements [Line Items]
Number of operating segments	3
Number of reportable segments	3
Summit Materials, LLC | Cement plant
Summary Of Significant Accounting Policies And Recent Accounting Pronouncements [Line Items]
Number of plants | cementPlant	2

SUMMARY OF ORGANIZATION AND S_4

SUMMARY OF ORGANIZATION AND SIGNIFICANT ACCOUNTING POLICIES - Business and Credit Concentration, Tax Receivable Agreement (Details)	Apr. 01, 2023 state
Business and Credit Concentrations
Number of states in which the entity operates	20
Summit Materials, LLC
Business and Credit Concentrations
Number of states in which the entity operates	20

ACQUISITIONS, DISPOSTIONS, GO_3

ACQUISITIONS, DISPOSTIONS, GOODWILL AND INTANGIBLES - Acquisitions by Region (Details) - acquisition	3 Months Ended	6 Months Ended
	Apr. 01, 2023	Jul. 02, 2022
West
Business Acquisition [Line Items]
Number of businesses acquired	1	0
West | Summit Materials, LLC
Business Acquisition [Line Items]
Number of businesses acquired	1	0
East
Business Acquisition [Line Items]
Number of businesses acquired	0	2
East | Summit Materials, LLC
Business Acquisition [Line Items]
Number of businesses acquired	0	2

ACQUISITIONS, DISPOSTIONS, GO_4

ACQUISITIONS, DISPOSTIONS, GOODWILL AND INTANGIBLES - Summary of Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Apr. 01, 2023	Dec. 31, 2022
Business Acquisition [Line Items]
Goodwill	$ 1,159,525	$ 1,132,546
Summit Materials, LLC
Business Acquisition [Line Items]
Goodwill	1,160,525	1,133,546
Series of Individually Immaterial Business Acquisitions
Business Acquisition [Line Items]
Financial assets	804	297
Inventories	1,107	161
Property, plant and equipment	27,170	30,041
Other assets	91	1,116
Financial liabilities	(59)	(1,120)
Other long-term liabilities	(138)	(1,589)
Net assets acquired	28,975	28,906
Goodwill	26,910	0
Purchase price	55,885	28,906
Acquisition-related liabilities	0	(6,176)
Other	(408)	0
Net cash paid for acquisitions	55,477	22,730
Series of Individually Immaterial Business Acquisitions | Summit Materials, LLC
Business Acquisition [Line Items]
Financial assets	804	297
Inventories	1,107	161
Property, plant and equipment	27,170	30,041
Other assets	91	1,116
Financial liabilities	(59)	(1,120)
Other long-term liabilities	(138)	(1,589)
Net assets acquired	28,975	28,906
Goodwill	26,910	0
Purchase price	55,885	28,906
Acquisition-related liabilities	0	(6,176)
Other	(408)	0
Net cash paid for acquisitions	$ 55,477	$ 22,730

ACQUISITIONS, DISPOSTIONS, GO_5

ACQUISITIONS, DISPOSTIONS, GOODWILL AND INTANGIBLES - Summary of Goodwill by Reportable Segments (Details) $ in Thousands	3 Months Ended
	Apr. 01, 2023 USD ($)
Goodwill [Roll Forward]
Balance—December 31, 2022	$ 1,132,546
Acquisitions	26,910
Foreign currency translation adjustments	69
Balance—April 1, 2023	1,159,525
West
Goodwill [Roll Forward]
Balance—December 31, 2022	566,389
Acquisitions	26,910
Foreign currency translation adjustments	69
Balance—April 1, 2023	593,368
East
Goodwill [Roll Forward]
Balance—December 31, 2022	361,501
Acquisitions	0
Foreign currency translation adjustments	0
Balance—April 1, 2023	361,501
Cement
Goodwill [Roll Forward]
Balance—December 31, 2022	204,656
Acquisitions	0
Foreign currency translation adjustments	0
Balance—April 1, 2023	204,656
Summit Materials, LLC
Goodwill [Roll Forward]
Balance—December 31, 2022	1,133,546
Acquisitions	26,910
Foreign currency translation adjustments	69
Balance—April 1, 2023	1,160,525
Summit Materials, LLC | West
Goodwill [Roll Forward]
Balance—December 31, 2022	567,389
Acquisitions	26,910
Foreign currency translation adjustments	69
Balance—April 1, 2023	594,368
Summit Materials, LLC | East
Goodwill [Roll Forward]
Balance—December 31, 2022	361,501
Acquisitions	0
Foreign currency translation adjustments	0
Balance—April 1, 2023	361,501
Summit Materials, LLC | Cement
Goodwill [Roll Forward]
Balance—December 31, 2022	204,656
Acquisitions	0
Foreign currency translation adjustments	0
Balance—April 1, 2023	$ 204,656

ACQUISITIONS, DISPOSTIONS, GO_6

ACQUISITIONS, DISPOSTIONS, GOODWILL AND INTANGIBLES - Intangible Assets By Type (Details) - USD ($) $ in Thousands	3 Months Ended
	Apr. 01, 2023	Apr. 02, 2022	Dec. 31, 2022
Finite-Lived Intangible Assets [Line Items]
Accumulated Amortization	$ (16,428)		$ (15,503)
Amortization expense	900	$ 900
Intangible Assets Excluding Intangible Assets Held for Sale
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	86,913		86,887
Accumulated Amortization	(16,428)		(15,503)
Net Carrying Amount	70,485		71,384
Operating permits
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	38,677		38,677
Accumulated Amortization	(4,498)		(4,109)
Net Carrying Amount	34,179		34,568
Mineral leases
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	17,766		18,091
Accumulated Amortization	(7,005)		(7,056)
Net Carrying Amount	10,761		11,035
Reserve rights
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	25,586		25,242
Accumulated Amortization	(4,402)		(3,872)
Net Carrying Amount	21,184		21,370
Other
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	4,884		4,877
Accumulated Amortization	(523)		(466)
Net Carrying Amount	4,361		4,411
Summit Materials, LLC
Finite-Lived Intangible Assets [Line Items]
Accumulated Amortization	(16,428)		(15,503)
Amortization expense	900	$ 900
Summit Materials, LLC | Intangible Assets Excluding Intangible Assets Held for Sale
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	86,913		86,887
Accumulated Amortization	(16,428)		(15,503)
Net Carrying Amount	70,485		71,384
Summit Materials, LLC | Operating permits
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	38,677		38,677
Accumulated Amortization	(4,498)		(4,109)
Net Carrying Amount	34,179		34,568
Summit Materials, LLC | Mineral leases
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	17,766		18,091
Accumulated Amortization	(7,005)		(7,056)
Net Carrying Amount	10,761		11,035
Summit Materials, LLC | Reserve rights
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	25,586		25,242
Accumulated Amortization	(4,402)		(3,872)
Net Carrying Amount	21,184		21,370
Summit Materials, LLC | Other
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	4,884		4,877
Accumulated Amortization	(523)		(466)
Net Carrying Amount	$ 4,361		$ 4,411

ACQUISITIONS, DISPOSTIONS, GO_7

ACQUISITIONS, DISPOSTIONS, GOODWILL AND INTANGIBLES - Amortization Expense (Details) - USD ($) $ in Thousands	Apr. 01, 2023	Dec. 31, 2022
Estimated amortization expense
2023 (nine months)	$ 2,984
2024	3,987
2025	3,945
2026	3,897
2027	3,884
2028	3,887
Thereafter	47,901
Total	70,485	$ 71,384
Summit Materials, LLC
Estimated amortization expense
2023 (nine months)	2,984
2024	3,987
2025	3,945
2026	3,897
2027	3,884
2028	3,887
Thereafter	47,901
Total	$ 70,485	$ 71,384

REVENUE RECOGNITION - By Produc

REVENUE RECOGNITION - By Product (Details) - USD ($) $ in Thousands	3 Months Ended
	Apr. 01, 2023	Apr. 02, 2022
Revenue from External Customer [Line Items]
Total revenue	$ 435,388	$ 420,947
Aggregates
Revenue from External Customer [Line Items]
Total revenue	143,653	123,393
Cement
Revenue from External Customer [Line Items]
Total revenue	49,013	42,554
Ready-mix concrete
Revenue from External Customer [Line Items]
Total revenue	138,778	157,563
Asphalt
Revenue from External Customer [Line Items]
Total revenue	26,635	17,138
Paving and related services
Revenue from External Customer [Line Items]
Total revenue	27,184	30,610
Other
Revenue from External Customer [Line Items]
Total revenue	50,125	49,689
Summit Materials, LLC
Revenue from External Customer [Line Items]
Total revenue	435,388	420,947
Summit Materials, LLC | Aggregates
Revenue from External Customer [Line Items]
Total revenue	143,653	123,393
Summit Materials, LLC | Cement
Revenue from External Customer [Line Items]
Total revenue	49,013	42,554
Summit Materials, LLC | Ready-mix concrete
Revenue from External Customer [Line Items]
Total revenue	138,778	157,563
Summit Materials, LLC | Asphalt
Revenue from External Customer [Line Items]
Total revenue	26,635	17,138
Summit Materials, LLC | Paving and related services
Revenue from External Customer [Line Items]
Total revenue	27,184	30,610
Summit Materials, LLC | Other
Revenue from External Customer [Line Items]
Total revenue	$ 50,125	$ 49,689

REVENUE RECOGNITION - Schedule

REVENUE RECOGNITION - Schedule of Accounts Receivable, Net (Details) - USD ($) $ in Thousands	3 Months Ended
	Apr. 01, 2023	Dec. 31, 2022
Accounts, Notes, Loans and Financing Receivable [Line Items]
Trade accounts receivable	$ 222,479	$ 215,766
Construction contract receivables	12,243	37,067
Retention receivables	9,428	11,048
Accounts receivable	244,150	263,881
Less: Allowance for doubtful accounts	(7,581)	(7,212)
Accounts receivable, net	$ 236,569	256,669
Maximum
Accounts, Notes, Loans and Financing Receivable [Line Items]
General collection and billing period for retention receivables	1 year
Summit Materials, LLC
Accounts, Notes, Loans and Financing Receivable [Line Items]
Trade accounts receivable	$ 222,479	215,766
Construction contract receivables	12,243	37,067
Retention receivables	9,428	11,048
Accounts receivable	244,150	263,881
Less: Allowance for doubtful accounts	(7,581)	(7,212)
Accounts receivable, net	$ 236,569	$ 256,669
Summit Materials, LLC | Maximum
Accounts, Notes, Loans and Financing Receivable [Line Items]
General collection and billing period for retention receivables	1 year

INVENTORIES - Components of Inv

INVENTORIES - Components of Inventories (Details) - USD ($) $ in Thousands	Apr. 01, 2023	Dec. 31, 2022
Inventory [Line Items]
Aggregate stockpiles	$ 152,276	$ 148,347
Finished goods	51,884	33,622
Work in process	7,754	8,191
Raw materials	22,650	22,331
Total	234,564	212,491
Summit Materials, LLC
Inventory [Line Items]
Aggregate stockpiles	152,276	148,347
Finished goods	51,884	33,622
Work in process	7,754	8,191
Raw materials	22,650	22,331
Total	$ 234,564	$ 212,491

ACCRUED EXPENSES - Components o

ACCRUED EXPENSES - Components of Accrued Expenses (Details) - USD ($) $ in Thousands	Apr. 01, 2023	Dec. 31, 2022
Schedule Of Accrued Expenses [Line Items]
Interest	$ 11,064	$ 24,625
Payroll and benefits	20,447	34,485
Finance lease obligations	4,224	6,959
Insurance	19,713	18,127
Current portion of TRA liability and non-income taxes	9,536	4,360
Deferred asset purchase payments	5,287	5,131
Professional fees	2,053	924
Other	25,154	25,356
Total	97,478	119,967
Summit Materials, LLC
Schedule Of Accrued Expenses [Line Items]
Interest	11,064	24,625
Payroll and benefits	20,447	34,485
Finance lease obligations	4,224	6,959
Insurance	19,713	18,127
Current portion of TRA liability and non-income taxes	5,621	5,101
Deferred asset purchase payments	5,287	5,131
Professional fees	2,053	924
Other	25,154	25,356
Total	$ 93,563	$ 120,708

DEBT - Schedule of Debt (Detail

DEBT - Schedule of Debt (Details) - USD ($) $ in Thousands	Apr. 01, 2023	Dec. 31, 2022
Debt Instrument [Line Items]
Total debt	$ 1,503,530	$ 1,504,549
Current portion of long-term debt	5,096	5,096
Long-term debt	1,498,434	1,499,453
Gross amount	1,508,286
Debt discount	4,756
Term Loan, due 2027
Debt Instrument [Line Items]
Total debt	503,530	504,549
Gross amount	508,300	509,600
Debt discount	4,800	5,000
Summit Materials, LLC
Debt Instrument [Line Items]
Total debt	1,503,530	1,504,549
Current portion of long-term debt	5,096	5,096
Long-term debt	1,498,434	1,499,453
Gross amount	1,508,286
Debt discount	4,756
Summit Materials, LLC | Term Loan, due 2027
Debt Instrument [Line Items]
Total debt	503,530	504,549
Gross amount	508,300	509,600
Debt discount	4,800	5,000
Senior Notes | 6 1/2% Senior Notes, due 2027
Debt Instrument [Line Items]
Total debt	$ 300,000	300,000
Debt instrument interest rate (as a percent)	6.50%
Senior Notes | 5 1/4% Senior Notes Due 2029
Debt Instrument [Line Items]
Total debt	$ 700,000	700,000
Debt instrument interest rate (as a percent)	5.25%
Senior Notes | Summit Materials, LLC | 6 1/2% Senior Notes, due 2027
Debt Instrument [Line Items]
Total debt	$ 300,000	300,000
Debt instrument interest rate (as a percent)	6.50%
Senior Notes | Summit Materials, LLC | 5 1/4% Senior Notes Due 2029
Debt Instrument [Line Items]
Total debt	$ 700,000	$ 700,000
Debt instrument interest rate (as a percent)	5.25%

DEBT - Schedule of Contractual

DEBT - Schedule of Contractual Payments of Long-Term Debt (Details) $ in Thousands	Apr. 01, 2023 USD ($)
Debt Instrument [Line Items]
2023 (nine months)	$ 3,822
2024	3,822
2025	6,369
2026	5,096
2027	789,177
2028	0
Thereafter	700,000
Total	1,508,286
Less: Original issue net discount	(4,756)
Less: Capitalized loan costs	(10,651)
Total debt	1,492,879
Summit Materials, LLC
Debt Instrument [Line Items]
2023 (nine months)	3,822
2024	3,822
2025	6,369
2026	5,096
2027	789,177
2028	0
Thereafter	700,000
Total	1,508,286
Less: Original issue net discount	(4,756)
Less: Capitalized loan costs	(10,651)
Total debt	$ 1,492,879

DEBT - Senior Notes (Details)

DEBT - Senior Notes (Details) - USD ($)	Aug. 11, 2020	Mar. 15, 2019	Apr. 01, 2023	Dec. 31, 2022
Debt Instrument [Line Items]
Long-term debt			$ 1,503,530,000	$ 1,504,549,000
Issuers | 5 1/4% Senior Notes Due 2029
Debt Instrument [Line Items]
Long-term debt	$ 700,000,000
Senior notes, interest rate (as a percent)	5.25%
Proceeds from debt issuances	$ 690,400,000
Issuers | 6 1/2% Senior Notes, due 2027
Debt Instrument [Line Items]
Long-term debt		$ 300,000,000
Senior notes, interest rate (as a percent)		6.50%
Senior Notes | 5 1/4% Senior Notes Due 2029
Debt Instrument [Line Items]
Long-term debt			$ 700,000,000	700,000,000
Senior notes, interest rate (as a percent)			5.25%
Senior Notes | 6 1/2% Senior Notes, due 2027
Debt Instrument [Line Items]
Long-term debt			$ 300,000,000	$ 300,000,000
Senior notes, interest rate (as a percent)			6.50%
Senior Notes | Issuers | 5 1/4% Senior Notes Due 2029
Debt Instrument [Line Items]
Percentage of par value of senior notes	100%
Senior Notes | Issuers | 6 1/2% Senior Notes, due 2027
Debt Instrument [Line Items]
Percentage of par value of senior notes		100%
Proceeds net of related fees and expenses		$ 296,300,000

DEBT - Senior Secured Credit Fa

DEBT - Senior Secured Credit Facilities (Details) - USD ($)			3 Months Ended		12 Months Ended
	Jan. 10, 2023	Dec. 14, 2022	Apr. 01, 2023	Apr. 02, 2022	Dec. 31, 2022
Debt Instrument [Line Items]
Repayments of term loan			$ 4,414,000	$ 7,603,000
Summit Materials, LLC
Debt Instrument [Line Items]
Repayments of term loan			4,414,000	$ 7,603,000
Term Loan, due 2024 | Summit Materials, LLC
Debt Instrument [Line Items]
Debt instrument, face amount			$ 508,300,000
Quarterly principal repayments percentage			0.25%
Effective interest rate			8.49%
Term Loan, due 2027 | Summit Materials, LLC
Debt Instrument [Line Items]
Debt instrument, face amount		$ 509,600,000	$ 508,300,000
Quarterly principal repayments percentage			0.25%
Effective interest rate			8.49%
Repayments of term loan					$ 95,600,000
Term Loan, due 2027 | Summit Materials, LLC | Base Rate or SOFR
Debt Instrument [Line Items]
Basis spread on variable rate		2%
Term Loan, due 2027 | Summit Materials, LLC | Base Rate or SOFR | Minimum
Debt Instrument [Line Items]
Basis spread on variable rate		1%
Term Loan, due 2027 | Summit Materials, LLC | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate
Debt Instrument [Line Items]
Basis spread on variable rate		3%
Term Loan, due 2027 | Summit Materials, LLC | Secured Overnight Financing Rate Adjustment
Debt Instrument [Line Items]
Basis spread on variable rate		0.10%
Term Loan, due 2027 | Summit Materials, LLC | Secured Overnight Financing Rate Adjustment | Minimum
Debt Instrument [Line Items]
Basis spread on variable rate		0%
Revolving Credit Facility | Summit Materials, LLC
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 395,000,000		$ 395,000,000
Amount outstanding			0		$ 0
Remaining borrowing capacity			373,900,000
Revolving Credit Facility | Summit Materials, LLC | Secured Overnight Financing Rate Adjustment
Debt Instrument [Line Items]
Basis spread on variable rate	0.10%
Revolving Credit Facility | Summit Materials, LLC | Secured Overnight Financing Rate Adjustment | Minimum
Debt Instrument [Line Items]
Basis spread on variable rate	0%
Letter of Credit | Summit Materials, LLC
Debt Instrument [Line Items]
Amount outstanding			$ 21,100,000
Senior Secured Credit Facilities | Summit Materials, LLC
Debt Instrument [Line Items]
First lien leverage ratio			4.75

DEBT - Schedule of Activity for

DEBT - Schedule of Activity for Deferred Financing Fees (Details) - USD ($) $ in Thousands	3 Months Ended
	Apr. 01, 2023	Apr. 02, 2022
Deferred Finance Costs, Own-share Lending Arrangement, Issuance Costs, Accumulated Amortization [Roll Forward]
Beginning balance	$ 11,489	$ 13,049
Loan origination fees	1,566
Amortization	(616)	(692)
Write off of deferred financing fees	(160)
Ending balance	12,279	12,357
Summit Materials, LLC
Deferred Finance Costs, Own-share Lending Arrangement, Issuance Costs, Accumulated Amortization [Roll Forward]
Beginning balance	11,489	13,049
Loan origination fees	1,566
Amortization	(616)	(692)
Write off of deferred financing fees	(160)
Ending balance	$ 12,279	$ 12,357

DEBT - Other (Details)

DEBT - Other (Details) - CAD ($)	Jan. 15, 2015	Apr. 01, 2023	Dec. 31, 2022
Canadian Subsidiary Credit Agreement, Operating Activities
Debt Instrument [Line Items]
Revolving credit commitment	$ 6,000,000
Canadian Subsidiary Credit Agreement, Capital Equipment
Debt Instrument [Line Items]
Revolving credit commitment	500,000
Canadian Subsidiary Credit Agreement, Guarantees
Debt Instrument [Line Items]
Revolving credit commitment	1,500,000
Canadian Subsidiary Credit Agreement, Foreign Exchange Facility
Debt Instrument [Line Items]
Revolving credit commitment	$ 10,000,000
Canadian Subsidiary Credit Agreement
Debt Instrument [Line Items]
Amount outstanding		$ 0	$ 0
Prime rate | Canadian Subsidiary Credit Agreement, Operating Activities
Debt Instrument [Line Items]
Basis spread on variable rate	0.20%
Prime rate | Canadian Subsidiary Credit Agreement, Capital Equipment
Debt Instrument [Line Items]
Basis spread on variable rate	0.20%
Summit Materials, LLC | Canadian Subsidiary Credit Agreement, Operating Activities
Debt Instrument [Line Items]
Revolving credit commitment	$ 6,000,000
Summit Materials, LLC | Canadian Subsidiary Credit Agreement, Capital Equipment
Debt Instrument [Line Items]
Revolving credit commitment	500,000
Summit Materials, LLC | Canadian Subsidiary Credit Agreement, Guarantees
Debt Instrument [Line Items]
Revolving credit commitment	$ 1,500,000
Summit Materials, LLC | Canadian Subsidiary Credit Agreement
Debt Instrument [Line Items]
Amount outstanding		$ 0	$ 0
Summit Materials, LLC | Prime rate | Canadian Subsidiary Credit Agreement, Operating Activities
Debt Instrument [Line Items]
Basis spread on variable rate	0.20%
Summit Materials, LLC | Prime rate | Canadian Subsidiary Credit Agreement, Capital Equipment
Debt Instrument [Line Items]
Basis spread on variable rate	0.20%

INCOME TAXES - Narrative (Detai

INCOME TAXES - Narrative (Details) - USD ($)	3 Months Ended
	Apr. 01, 2023	Apr. 02, 2022	Dec. 31, 2022
Income Taxes [Line Items]
Income tax benefit	$ (6,466,000)	$ (4,743,000)
Valuation allowance	1,113,000	1,100,000	$ 1,113,000
Income tax provision, interest or penalties recognized	0	0
Tax receivable agreement liability	322,624,000		327,812,000
Tax Receivable Agreement
Income Taxes [Line Items]
Tax receivable agreement liability	$ 327,800,000		$ 328,400,000
Summit Holdings LP
Income Taxes [Line Items]
Distributions to LP unitholders		0
Summit Holdings LP | Tax Receivable Agreement
Income Taxes [Line Items]
Percentage of benefits to be paid on tax receivable agreement	85%
Summit Materials, LLC
Income Taxes [Line Items]
Income tax benefit	$ (467,000)	6,844,000
Income tax provision, interest or penalties recognized	$ 0	$ 0
Common Class A
Income Taxes [Line Items]
Exchanges during period (in shares)	2,000
Common Class A | Tax Receivable Agreement
Income Taxes [Line Items]
Exchanges during period (in shares)	2,000

EARNINGS PER SHARE - Schedule o

EARNINGS PER SHARE - Schedule of Basic to Diluted Income Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Apr. 01, 2023	Apr. 02, 2022
Reconciliation of basic to diluted loss per share
Net loss attributable to Summit Inc.	$ (30,804)	$ (34,292)
Diluted net loss attributable to Summit Inc.	$ (30,804)	$ (34,292)
LP Units
Reconciliation of basic to diluted loss per share
Anti dilutive shares excluded from calculation of earnings per share (in shares)	1,311,257	1,314,006
Time-vesting stock options
Reconciliation of basic to diluted loss per share
Anti dilutive shares excluded from calculation of earnings per share (in shares)	279,680	290,944
Warrants
Reconciliation of basic to diluted loss per share
Anti dilutive shares excluded from calculation of earnings per share (in shares)	31,519	31,519
Time-vesting restricted stock units
Reconciliation of basic to diluted loss per share
Anti dilutive shares excluded from calculation of earnings per share (in shares)	1,051,844	1,379,251
Market-based restricted stock units
Reconciliation of basic to diluted loss per share
Anti dilutive shares excluded from calculation of earnings per share (in shares)	439,704	416,096
Common Class A And Restricted Stock
Reconciliation of basic to diluted loss per share
Weighted average shares of Class A stock outstanding (in shares)	118,679,656	120,916,680
Weighted average basic shares outstanding (in shares)	118,679,656	120,916,680
Basic loss per share (in usd per share)	$ (0.26)	$ (0.28)
Common Class A
Reconciliation of basic to diluted loss per share
Weighted average shares of Class A stock outstanding (in shares)	118,564,556	120,756,555
Weighted average basic shares outstanding (in shares)	118,564,556	120,756,555
Basic loss per share (in usd per share)	$ (0.26)	$ (0.28)
Add: warrants (in shares)	0	0
Weighted average dilutive shares outstanding (in shares)	118,679,656	120,916,680
Diluted loss per share (in usd per share)	$ (0.26)	$ (0.28)
Common Class A | LP Units
Reconciliation of basic to diluted loss per share
Add: share-based payment arrangements (in shares)	0	0
Common Class A | Time-vesting stock options
Reconciliation of basic to diluted loss per share
Add: share-based payment arrangements (in shares)	0	0
Common Class A | Add: restricted stock units
Reconciliation of basic to diluted loss per share
Add: share-based payment arrangements (in shares)	0	0
Common Class A | Add: performance stock units
Reconciliation of basic to diluted loss per share
Add: share-based payment arrangements (in shares)	0	0
Restricted Stock
Reconciliation of basic to diluted loss per share
Add: Nonvested restricted stock awards of retirement eligible shares (in shares)	115,100	160,125

STOCKHOLDERS' EQUITY_MEMBERS'_3

STOCKHOLDERS' EQUITY/MEMBERS' INTEREST - Narrative (Details) - USD ($)	3 Months Ended
	Apr. 01, 2023	Apr. 02, 2022	Dec. 31, 2022	Mar. 31, 2022
Schedule of Capitalization, Equity [Line Items]
Repurchases of common stock		$ 47,509,000
Summit Holdings LP
Schedule of Capitalization, Equity [Line Items]
Noncontrolling interest elimination (as a percent)	1.10%		1.10%
Common Class A
Schedule of Capitalization, Equity [Line Items]
Share repurchase program, authorized amount				$ 250,000,000
Repurchases of common stock	$ 149,000,000

STOCKHOLDERS' EQUITY_MEMBERS'_4

STOCKHOLDERS' EQUITY/MEMBERS' INTEREST - Equity Offerings (Details) - shares	3 Months Ended
	Apr. 01, 2023	Apr. 02, 2022	Dec. 31, 2022	Jan. 01, 2022
Common Class A
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance (in shares)	118,408,655	120,684,322
Exchanges during period (in shares)	2,000
Stock option exercises (in shares)	902	1,589
Repurchases of common stock (in shares)		(1,506,878)
Other equity transactions (in shares)	407,114	842,029
Ending balance (in shares)	118,818,671	120,021,062
Summit Materials, Inc. and Summit Holdings, LP
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance (in shares)	119,720,659	121,998,328
Exchanges during period (in shares)	0
Stock option exercises (in shares)	902	1,589
Repurchases of common stock (in shares)		(1,506,878)
Other equity transactions (in shares)	407,114	842,029
Ending balance (in shares)	120,128,675	121,335,068
LP Units | Summit Holdings LP
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Number of LP Units outstanding, beginning balance (in shares)	1,312,004	1,314,006
Number of LP Units exchanged (in shares)	(2,000)
Number of LP Units outstanding, ending balance (in shares)	1,310,004	1,314,006
Summit Materials Inc
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Ownership percentage	98.90%	98.90%	98.90%	98.90%

STOCKHOLDERS' EQUITY_MEMBERS'_5

STOCKHOLDERS' EQUITY/MEMBERS' INTEREST - Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended
	Apr. 01, 2023	Apr. 02, 2022
Changes in each component of accumulated other comprehensive loss
Beginning balance	$ 2,011,990	$ 1,823,212
Foreign currency translation adjustment, net of tax	161	1,306
Ending balance	1,979,946	1,746,497
Summit Materials, LLC
Changes in each component of accumulated other comprehensive loss
Beginning balance	2,143,150	1,884,944
Foreign currency translation adjustment, net of tax	203	1,744
Ending balance	2,105,146	1,797,061
Change in retirement plans
Changes in each component of accumulated other comprehensive loss
Beginning balance	6,356	1,508
Ending balance	6,356	1,508
Change in retirement plans | Summit Materials, LLC
Changes in each component of accumulated other comprehensive loss
Beginning balance	(762)	(7,243)
Ending balance	(762)	(7,243)
Foreign currency translation adjustments
Changes in each component of accumulated other comprehensive loss
Beginning balance	(3,272)	5,575
Foreign currency translation adjustment, net of tax	161	1,306
Ending balance	(3,111)	6,881
Foreign currency translation adjustments | Summit Materials, LLC
Changes in each component of accumulated other comprehensive loss
Beginning balance	(20,614)	(8,783)
Foreign currency translation adjustment, net of tax	203	1,744
Ending balance	(20,411)	(7,039)
Accumulated other comprehensive income (loss)
Changes in each component of accumulated other comprehensive loss
Beginning balance	3,084	7,083
Ending balance	3,245	8,389
Accumulated other comprehensive income (loss) | Summit Materials, LLC
Changes in each component of accumulated other comprehensive loss
Beginning balance	(21,376)	(16,026)
Ending balance	$ (21,173)	$ (14,282)

SUPPLEMENTAL CASH FLOW INFORM_3

SUPPLEMENTAL CASH FLOW INFORMATION - Schedule of Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Apr. 01, 2023	Apr. 02, 2022
Cash payments:
Interest	$ 37,970	$ 31,789
Payments for income taxes, net	2,088	1,542
Operating cash payments on operating leases	2,402	2,455
Operating cash payments on finance leases	149	372
Finance cash payments on finance leases	4,011	5,949
Non cash investing and financing activities:
Accrued liabilities for purchases of property, plant and equipment	21,911	23,610
Right of use assets obtained in exchange for operating lease obligations	679	5,416
Right of use assets obtained in exchange for finance leases obligations	413	248
Exchange of LP Units to shares of Class A common stock	60	0
Summit Materials, LLC
Cash payments:
Interest	37,970	31,789
Payments for income taxes, net	2,088	1,542
Operating cash payments on operating leases	2,402	2,455
Operating cash payments on finance leases	149	372
Finance cash payments on finance leases	4,011	5,949
Non cash investing and financing activities:
Accrued liabilities for purchases of property, plant and equipment	21,911	23,610
Right of use assets obtained in exchange for operating lease obligations	679	5,416
Right of use assets obtained in exchange for finance leases obligations	$ 413	$ 248

LEASES - Operating and Finance

LEASES - Operating and Finance Leases (Details) - USD ($) $ in Thousands	3 Months Ended
	Apr. 01, 2023	Apr. 02, 2022	Dec. 31, 2022
Lease, Cost [Abstract]
Operating lease cost	$ 2,641	$ 2,512
Variable lease cost	30	113
Short-term lease cost	7,270	8,248
Financing lease cost:
Amortization of right-of-use assets	818	1,986
Interest on lease liabilities	148	369
Total lease cost	10,907	13,228
Operating leases:
Operating lease right-of-use assets	36,638		$ 37,889
Current operating lease liabilities	7,515		7,296
Noncurrent operating lease liabilities	34,315		35,737
Total operating lease liabilities	41,830		43,033
Finance leases:
Property and equipment, gross	24,565		32,119
Less accumulated depreciation	$ (11,279)		$ (14,992)
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	Property, plant and equipment, net		Property, plant and equipment, net
Property and equipment, net	$ 13,286		$ 17,127
Finance Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]	Accrued expenses		Accrued expenses
Current finance lease liabilities	$ 4,224		$ 6,959
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Other noncurrent liabilities		Other noncurrent liabilities
Long-term finance lease liabilities	$ 6,303		$ 7,167
Total finance lease liabilities	$ 10,527		$ 14,126
Weighted average remaining lease term (years):
Operating leases	9 years		9 years 1 month 6 days
Finance lease	3 years 6 months		2 years 9 months 18 days
Weighted average discount rate:
Operating leases	4.70%		4.70%
Finance leases	5.60%		5.30%
Operating Leases
2023 (nine months)	$ 6,929
2024	8,289
2025	6,377
2026	5,009
2027	4,161
2028	3,223
Thereafter	16,787
Total lease payments	50,775
Less imputed interest	(8,945)
Present value of lease payments	41,830		$ 43,033
Finance Leases
2023 (nine months)	3,106
2024	3,433
2025	2,435
2026	990
2027	760
2028	513
Thereafter	570
Total lease payments	11,807
Less imputed interest	(1,280)
Present value of lease payments	10,527		14,126
Summit Materials, LLC
Lease, Cost [Abstract]
Operating lease cost	2,641	2,512
Variable lease cost	30	113
Short-term lease cost	7,270	8,248
Financing lease cost:
Amortization of right-of-use assets	818	1,986
Interest on lease liabilities	148	369
Total lease cost	10,907	$ 13,228
Operating leases:
Operating lease right-of-use assets	36,638		37,889
Current operating lease liabilities	7,515		7,296
Noncurrent operating lease liabilities	34,315		35,737
Total operating lease liabilities	41,830		43,033
Finance leases:
Property and equipment, gross	24,565		32,119
Less accumulated depreciation	$ (11,279)		$ (14,992)
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	Property, plant and equipment, net		Property, plant and equipment, net
Property and equipment, net	$ 13,286		$ 17,127
Current finance lease liabilities	4,224		6,959
Long-term finance lease liabilities	6,303		7,167
Total finance lease liabilities	$ 10,527		$ 14,126
Weighted average remaining lease term (years):
Operating leases	9 years		9 years 1 month 6 days
Finance lease	3 years 6 months		2 years 9 months 18 days
Weighted average discount rate:
Operating leases	4.70%		4.70%
Finance leases	5.60%		5.30%
Operating Leases
2023 (nine months)	$ 6,929
2024	8,289
2025	6,377
2026	5,009
2027	4,161
2028	3,223
Thereafter	16,787
Total lease payments	50,775
Less imputed interest	(8,945)
Present value of lease payments	41,830		$ 43,033
Finance Leases
2023 (nine months)	3,106
2024	3,433
2025	2,435
2026	990
2027	760
2028	513
Thereafter	570
Total lease payments	11,807
Less imputed interest	(1,280)
Present value of lease payments	$ 10,527		$ 14,126

COMMITMENTS AND CONTINGENCIES -

COMMITMENTS AND CONTINGENCIES - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
	Apr. 01, 2023	Dec. 31, 2022
Loss Contingencies [Line Items]
Anticipated costs	$ 124.8	$ 124.9
Term of purchase commitments	1 year
Site Restoration Obligations | Other noncurrent liabilities
Loss Contingencies [Line Items]
Site restoration obligation, non-current	$ 35.5	36.3
Site Restoration Obligations | Accrued expenses.
Loss Contingencies [Line Items]
Site restoration obligation, current	$ 5.3	4
Summit Materials, LLC
Loss Contingencies [Line Items]
Term of purchase commitments	1 year
Summit Materials, LLC | Site Restoration Obligations
Loss Contingencies [Line Items]
Anticipated costs	$ 124.8	124.9
Summit Materials, LLC | Site Restoration Obligations | Other noncurrent liabilities
Loss Contingencies [Line Items]
Site restoration obligation, non-current	35.5	36.3
Summit Materials, LLC | Site Restoration Obligations | Accrued expenses.
Loss Contingencies [Line Items]
Site restoration obligation, current	$ 5.3	$ 4

FAIR VALUE - Fair Value Measure

FAIR VALUE - Fair Value Measurements (Details) - Level 3 $ in Thousands	3 Months Ended
	Apr. 01, 2023 USD ($)	Apr. 02, 2022 USD ($)	Dec. 31, 2022 USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Current portion of acquisition-related liabilities and accrued expenses - contingent consideration	$ 336		$ 336
Acquisition-related liabilities and other noncurrent liabilities - contingent consideration	4,961		4,981
Adjustment to contingent consideration	0	$ 0
Summit Materials, LLC
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Current portion of acquisition-related liabilities and accrued expenses - contingent consideration	336		336
Acquisition-related liabilities and other noncurrent liabilities - contingent consideration	4,961		$ 4,981
Adjustment to contingent consideration	$ 0	$ 0
Discount Rate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration fair value measurement input	0.100
Discount Rate | Summit Materials, LLC
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration fair value measurement input	0.100

FAIR VALUE - Carrying Value and

FAIR VALUE - Carrying Value and Fair Value of Financial Instruments (Details) - USD ($) $ in Thousands	Apr. 01, 2023	Dec. 31, 2022
Financial Instruments
Current portion of long-term debt	$ 5,096	$ 5,096
Summit Materials, LLC
Financial Instruments
Current portion of long-term debt	5,096	5,096
Level 1 | Fair Value
Financial Instruments
Long-term debt	1,457,171	1,447,673
Level 1 | Carrying Value
Financial Instruments
Long-term debt	1,503,530	1,504,549
Level 1 | Summit Materials, LLC
Financial Instruments
Current portion of long-term debt	5,100	5,100
Level 1 | Summit Materials, LLC | Fair Value
Financial Instruments
Long-term debt	1,457,171	1,447,673
Level 1 | Summit Materials, LLC | Carrying Value
Financial Instruments
Long-term debt	1,503,530	1,504,549
Level 3 | Fair Value
Financial Instruments
Current portion of deferred consideration and noncompete obligations	6,907	13,382
Long term portion of deferred consideration and noncompete obligations	17,978	24,070
Level 3 | Carrying Value
Financial Instruments
Current portion of deferred consideration and noncompete obligations	6,907	13,382
Long term portion of deferred consideration and noncompete obligations	17,978	24,070
Level 3 | Summit Materials, LLC | Fair Value
Financial Instruments
Current portion of deferred consideration and noncompete obligations	6,907	13,382
Long term portion of deferred consideration and noncompete obligations	17,978	24,070
Level 3 | Summit Materials, LLC | Carrying Value
Financial Instruments
Current portion of deferred consideration and noncompete obligations	6,907	13,382
Long term portion of deferred consideration and noncompete obligations	17,978	24,070
Fair Value, Inputs, Level 1 | Fair Value
Financial Instruments
Current portion of long-term debt	$ 5,100	$ 5,100

SEGMENT INFORMATION - Financial

SEGMENT INFORMATION - Financial Data (Details) $ in Thousands	3 Months Ended
	Apr. 01, 2023 USD ($) segment	Apr. 02, 2022 USD ($)	Dec. 31, 2022 USD ($)
Segment Reporting Information [Line Items]
Number of operating segments | segment	3
Number of reportable segments | segment	3
Total revenue	$ 435,388	$ 420,947
(Loss) income from operation before taxes	(37,678)	(39,543)
Interest expense	27,420	20,149
Depreciation, depletion and amortization	50,188	50,479
Accretion	706	714
Loss on debt financings	493	0
Gain on sale of businesses	0	(14,205)
Non-cash compensation	4,708	5,422
Other	(4,636)	247
Total Adjusted EBITDA	41,201	23,263
Total purchases of property, plant and equipment	63,584	57,774
Total depreciation, depletion, amortization and accretion	50,894	51,193
Total assets	4,214,940		$ 4,255,692
Operating segment
Segment Reporting Information [Line Items]
Total purchases of property, plant and equipment	60,688	57,315
Total depreciation, depletion, amortization and accretion	49,906	50,444
Total assets	3,673,584		3,590,603
Corporate, non-segment
Segment Reporting Information [Line Items]
Total Adjusted EBITDA	(10,339)	(11,746)
Total purchases of property, plant and equipment	2,896	459
Total depreciation, depletion, amortization and accretion	988	749
Total assets	541,356		665,089
West
Segment Reporting Information [Line Items]
Total revenue	250,882	252,232
West | Operating segment
Segment Reporting Information [Line Items]
Total Adjusted EBITDA	32,678	32,692
Total purchases of property, plant and equipment	38,174	26,874
Total depreciation, depletion, amortization and accretion	26,373	24,575
Total assets	1,632,437		1,565,776
East
Segment Reporting Information [Line Items]
Total revenue	130,389	122,490
East | Operating segment
Segment Reporting Information [Line Items]
Total Adjusted EBITDA	18,852	8,136
Total purchases of property, plant and equipment	15,518	24,326
Total depreciation, depletion, amortization and accretion	15,535	18,295
Total assets	1,155,539		1,151,223
Cement
Segment Reporting Information [Line Items]
Total revenue	54,117	46,225
Cement | Operating segment
Segment Reporting Information [Line Items]
Total Adjusted EBITDA	10	(5,819)
Total purchases of property, plant and equipment	6,996	6,115
Total depreciation, depletion, amortization and accretion	7,998	7,574
Total assets	$ 885,608		873,604
Summit Materials, LLC
Segment Reporting Information [Line Items]
Number of operating segments | segment	3
Number of reportable segments | segment	3
Total revenue	$ 435,388	420,947
(Loss) income from operation before taxes	(37,678)	(39,543)
Interest expense	27,420	20,149
Depreciation, depletion and amortization	50,188	50,479
Accretion	706	714
Loss on debt financings	493	0
Gain on sale of businesses	0	(14,205)
Non-cash compensation	4,708	5,422
Other	(4,636)	247
Total Adjusted EBITDA	41,201	23,263
Total purchases of property, plant and equipment	63,584	57,774
Total depreciation, depletion, amortization and accretion	50,894	51,193
Total assets	4,071,473		4,119,706
Summit Materials, LLC | Operating segment
Segment Reporting Information [Line Items]
Total purchases of property, plant and equipment	60,688	57,315
Total depreciation, depletion, amortization and accretion	49,906	50,444
Total assets	3,673,584		3,590,603
Summit Materials, LLC | Corporate, non-segment
Segment Reporting Information [Line Items]
Total Adjusted EBITDA	(10,339)	(11,746)
Total purchases of property, plant and equipment	2,896	459
Total depreciation, depletion, amortization and accretion	988	749
Total assets	397,889		529,103
Summit Materials, LLC | West
Segment Reporting Information [Line Items]
Total revenue	250,882	252,232
Summit Materials, LLC | West | Operating segment
Segment Reporting Information [Line Items]
Total Adjusted EBITDA	32,678	32,692
Total purchases of property, plant and equipment	38,174	26,874
Total depreciation, depletion, amortization and accretion	26,373	24,575
Total assets	1,632,437		1,565,776
Summit Materials, LLC | East
Segment Reporting Information [Line Items]
Total revenue	130,389	122,490
Summit Materials, LLC | East | Operating segment
Segment Reporting Information [Line Items]
Total Adjusted EBITDA	18,852	8,136
Total purchases of property, plant and equipment	15,518	24,326
Total depreciation, depletion, amortization and accretion	15,535	18,295
Total assets	1,155,539		1,151,223
Summit Materials, LLC | Cement
Segment Reporting Information [Line Items]
Total revenue	54,117	46,225
Summit Materials, LLC | Cement | Operating segment
Segment Reporting Information [Line Items]
Total Adjusted EBITDA	10	(5,819)
Total purchases of property, plant and equipment	6,996	6,115
Total depreciation, depletion, amortization and accretion	7,998	$ 7,574
Total assets	$ 885,608		$ 873,604

GUARANTOR AND NON-GUARANTOR F_3

GUARANTOR AND NON-GUARANTOR FINANCIAL INFORMATION - Schedule of Condensed Consolidating Balance Sheets (Details) - USD ($) $ in Thousands	Apr. 01, 2023	Dec. 31, 2022	Apr. 02, 2022	Jan. 01, 2022
Current assets:
Cash and cash equivalents	$ 379,457	$ 520,451
Accounts receivable, net	236,569	256,669
Cost and estimated earnings in excess of billings	14,387	6,510
Inventories	234,564	212,491
Total current assets	890,890	1,018,376
Property, plant and equipment, net	1,867,412	1,813,702
Goodwill	1,159,525	1,132,546
Intangible assets, net	70,485	71,384
Operating lease right-of-use assets	36,638	37,889
Total assets	4,214,940	4,255,692
Current liabilities:
Current portion of long-term debt	5,096	5,096
Current portion of acquisition-related liabilities	7,243	13,718
Accounts payable	138,961	104,031
Current operating lease liabilities	7,515	7,296
Billings in excess of costs and estimated earnings	4,233	5,739
Total current liabilities	260,526	255,847
Long-term debt	1,487,783	1,488,569
Acquisition-related liabilities	22,939	29,051
Noncurrent operating lease liabilities	34,315	35,737
Total liabilities	2,234,994	2,243,702
Total liabilities and stockholders’ equity	4,214,940	4,255,692
Summit Materials, LLC
Current assets:
Cash and cash equivalents	379,457	520,451
Accounts receivable, net	236,569	256,669
Intercompany receivables	0	0
Cost and estimated earnings in excess of billings	14,387	6,510
Inventories	234,564	212,491
Other current assets	25,913	22,255
Total current assets	890,890	1,018,376
Property, plant and equipment, net	1,867,412	1,813,702
Goodwill	1,160,525	1,133,546
Intangible assets, net	70,485	71,384
Operating lease right-of-use assets	36,638	37,889
Other assets	45,523	44,809
Total assets	4,071,473	4,119,706
Current liabilities:
Current portion of long-term debt	5,096	5,096
Current portion of acquisition-related liabilities	7,243	13,718
Accounts payable	138,816	104,430
Accrued expenses	93,563	120,708
Current operating lease liabilities	7,515	7,296
Intercompany payables	0	0
Billings in excess of costs and estimated earnings	4,233	5,739
Total current liabilities	256,466	256,987
Long-term debt	1,487,783	1,488,569
Acquisition-related liabilities	22,939	29,051
Noncurrent operating lease liabilities	34,315	35,737
Other noncurrent liabilities	164,824	166,212
Total liabilities	1,966,327	1,976,556
Total member's interest	2,105,146	2,143,150	$ 1,797,061	$ 1,884,944
Total liabilities and stockholders’ equity	4,071,473	4,119,706
Summit Materials, LLC | Eliminations
Current assets:
Cash and cash equivalents	(3,470)	(7,018)
Accounts receivable, net	(73)	(25)
Intercompany receivables	(2,255,725)	(2,267,134)
Cost and estimated earnings in excess of billings	0	0
Inventories	0	0
Other current assets	0	0
Total current assets	(2,259,268)	(2,274,177)
Property, plant and equipment, net	0	0
Goodwill	0	0
Intangible assets, net	0	0
Operating lease right-of-use assets	0	0
Other assets	(4,833,569)	(4,760,543)
Total assets	(7,092,837)	(7,034,720)
Current liabilities:
Current portion of long-term debt	0	0
Current portion of acquisition-related liabilities	0	0
Accounts payable	(73)	(25)
Accrued expenses	(3,470)	(7,018)
Current operating lease liabilities	0	0
Intercompany payables	(2,255,725)	(2,267,134)
Billings in excess of costs and estimated earnings	0	0
Total current liabilities	(2,259,268)	(2,274,177)
Long-term debt	0	0
Acquisition-related liabilities	0	0
Noncurrent operating lease liabilities	0	0
Other noncurrent liabilities	(164,421)	(164,421)
Total liabilities	(2,423,689)	(2,438,598)
Total member's interest	(4,669,148)	(4,596,122)
Total liabilities and stockholders’ equity	(7,092,837)	(7,034,720)
Summit Materials, LLC | Issuers | Reportable Legal Entities
Current assets:
Cash and cash equivalents	352,581	498,307
Accounts receivable, net	2,066	1,528
Intercompany receivables	320,454	329,744
Cost and estimated earnings in excess of billings	0	0
Inventories	0	0
Other current assets	11,751	4,755
Total current assets	686,852	834,334
Property, plant and equipment, net	23,419	21,306
Goodwill	0	0
Intangible assets, net	0	0
Operating lease right-of-use assets	4,463	4,665
Other assets	4,671,809	4,599,488
Total assets	5,386,543	5,459,793
Current liabilities:
Current portion of long-term debt	5,096	5,096
Current portion of acquisition-related liabilities	0	0
Accounts payable	3,711	3,553
Accrued expenses	37,547	54,417
Current operating lease liabilities	981	921
Intercompany payables	1,731,965	1,750,352
Billings in excess of costs and estimated earnings	0	0
Total current liabilities	1,779,300	1,814,339
Long-term debt	1,487,783	1,488,569
Acquisition-related liabilities	0	0
Noncurrent operating lease liabilities	8,493	8,726
Other noncurrent liabilities	5,821	5,009
Total liabilities	3,281,397	3,316,643
Total member's interest	2,105,146	2,143,150
Total liabilities and stockholders’ equity	5,386,543	5,459,793
Summit Materials, LLC | Guarantors  | Reportable Legal Entities
Current assets:
Cash and cash equivalents	2,713	2,864
Accounts receivable, net	213,534	233,039
Intercompany receivables	1,935,271	1,937,390
Cost and estimated earnings in excess of billings	12,689	5,861
Inventories	228,260	206,418
Other current assets	13,094	16,341
Total current assets	2,405,561	2,401,913
Property, plant and equipment, net	1,762,834	1,710,972
Goodwill	1,103,845	1,076,935
Intangible assets, net	66,125	66,972
Operating lease right-of-use assets	27,447	28,310
Other assets	206,025	204,644
Total assets	5,571,837	5,489,746
Current liabilities:
Current portion of long-term debt	0	0
Current portion of acquisition-related liabilities	7,243	13,718
Accounts payable	125,906	93,096
Accrued expenses	57,127	70,433
Current operating lease liabilities	5,841	5,637
Intercompany payables	521,961	513,494
Billings in excess of costs and estimated earnings	3,684	4,956
Total current liabilities	721,762	701,334
Long-term debt	0	0
Acquisition-related liabilities	22,939	29,051
Noncurrent operating lease liabilities	21,953	22,871
Other noncurrent liabilities	206,075	208,185
Total liabilities	972,729	961,441
Total member's interest	4,599,108	4,528,305
Total liabilities and stockholders’ equity	5,571,837	5,489,746
Summit Materials, LLC | Non-Guarantors | Reportable Legal Entities
Current assets:
Cash and cash equivalents	27,633	26,298
Accounts receivable, net	21,042	22,127
Intercompany receivables	0	0
Cost and estimated earnings in excess of billings	1,698	649
Inventories	6,304	6,073
Other current assets	1,068	1,159
Total current assets	57,745	56,306
Property, plant and equipment, net	81,159	81,424
Goodwill	56,680	56,611
Intangible assets, net	4,360	4,412
Operating lease right-of-use assets	4,728	4,914
Other assets	1,258	1,220
Total assets	205,930	204,887
Current liabilities:
Current portion of long-term debt	0	0
Current portion of acquisition-related liabilities	0	0
Accounts payable	9,272	7,806
Accrued expenses	2,359	2,876
Current operating lease liabilities	693	738
Intercompany payables	1,799	3,288
Billings in excess of costs and estimated earnings	549	783
Total current liabilities	14,672	15,491
Long-term debt	0	0
Acquisition-related liabilities	0	0
Noncurrent operating lease liabilities	3,869	4,140
Other noncurrent liabilities	117,349	117,439
Total liabilities	135,890	137,070
Total member's interest	70,040	67,817
Total liabilities and stockholders’ equity	$ 205,930	$ 204,887

GUARANTOR AND NON-GUARANTOR F_4

GUARANTOR AND NON-GUARANTOR FINANCIAL INFORMATION - Schedule of Condensed Consolidating Statements of Operations (Details) - USD ($) $ in Thousands	3 Months Ended
	Apr. 01, 2023	Apr. 02, 2022
Condensed Consolidating Statements of Operations
Revenue	$ 435,388	$ 420,947
Cost of revenue (excluding items shown separately below)	354,037	353,380
Depreciation, depletion, amortization and accretion	50,894	51,193
Operating (loss) income	(15,475)	(34,295)
Gain / Loss on sale of business	0	(14,205)
(Loss) income from operation before taxes	(37,678)	(39,543)
Income tax benefit	(6,466)	(4,743)
Net (loss) income attributable to Summit	(30,804)	(34,292)
Comprehensive (loss) income attributable to member of Summit Materials, LLC	(30,643)	(32,986)
Summit Materials, LLC
Condensed Consolidating Statements of Operations
Revenue	435,388	420,947
Cost of revenue (excluding items shown separately below)	354,037	353,380
General and administrative expenses	45,932	50,669
Depreciation, depletion, amortization and accretion	50,894	51,193
Operating (loss) income	(15,475)	(34,295)
Other (income) loss, net	(5,217)	(696)
Interest expense (income)	27,420	20,149
Gain / Loss on sale of business	0	(14,205)
(Loss) income from operation before taxes	(37,678)	(39,543)
Income tax benefit	(467)	6,844
Net (loss) income attributable to Summit	(37,211)	(46,387)
Comprehensive (loss) income attributable to member of Summit Materials, LLC	(37,008)	(44,643)
Summit Materials, LLC | Eliminations
Condensed Consolidating Statements of Operations
Revenue	(795)	(1,330)
Cost of revenue (excluding items shown separately below)	(795)	(1,330)
General and administrative expenses	0	0
Depreciation, depletion, amortization and accretion	0	0
Operating (loss) income	0	0
Other (income) loss, net	14,715	5,782
Interest expense (income)	0	0
Gain / Loss on sale of business		0
(Loss) income from operation before taxes	(14,715)	(5,782)
Income tax benefit	0	0
Net (loss) income attributable to Summit	(14,715)	(5,782)
Comprehensive (loss) income attributable to member of Summit Materials, LLC	(14,512)	(4,038)
Issuers | Summit Materials, LLC | Reportable Legal Entities
Condensed Consolidating Statements of Operations
Revenue	0	0
Cost of revenue (excluding items shown separately below)	0	0
General and administrative expenses	15,221	17,304
Depreciation, depletion, amortization and accretion	988	750
Operating (loss) income	(16,209)	(18,054)
Other (income) loss, net	(19,147)	(5,919)
Interest expense (income)	39,845	33,902
Gain / Loss on sale of business		0
(Loss) income from operation before taxes	(36,907)	(46,037)
Income tax benefit	304	350
Net (loss) income attributable to Summit	(37,211)	(46,387)
Comprehensive (loss) income attributable to member of Summit Materials, LLC	(37,008)	(44,643)
Guarantors  | Summit Materials, LLC | Reportable Legal Entities
Condensed Consolidating Statements of Operations
Revenue	408,422	395,180
Cost of revenue (excluding items shown separately below)	335,210	334,264
General and administrative expenses	28,947	31,672
Depreciation, depletion, amortization and accretion	47,153	47,496
Operating (loss) income	(2,888)	(18,252)
Other (income) loss, net	(277)	(552)
Interest expense (income)	(13,795)	(15,123)
Gain / Loss on sale of business		(14,205)
(Loss) income from operation before taxes	11,184	11,628
Income tax benefit	(1,510)	6,318
Net (loss) income attributable to Summit	12,694	5,310
Comprehensive (loss) income attributable to member of Summit Materials, LLC	12,694	5,310
Non-Guarantors | Summit Materials, LLC | Reportable Legal Entities
Condensed Consolidating Statements of Operations
Revenue	27,761	27,097
Cost of revenue (excluding items shown separately below)	19,622	20,446
General and administrative expenses	1,764	1,693
Depreciation, depletion, amortization and accretion	2,753	2,947
Operating (loss) income	3,622	2,011
Other (income) loss, net	(508)	(7)
Interest expense (income)	1,370	1,370
Gain / Loss on sale of business		0
(Loss) income from operation before taxes	2,760	648
Income tax benefit	739	176
Net (loss) income attributable to Summit	2,021	472
Comprehensive (loss) income attributable to member of Summit Materials, LLC	$ 1,818	$ (1,272)

GUARANTOR AND NON-GUARANTOR F_5

GUARANTOR AND NON-GUARANTOR FINANCIAL INFORMATION - Schedule of Condensed Consolidating Statements of Cash Flows (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Apr. 01, 2023	Apr. 02, 2022	Dec. 31, 2022
Condensed Consolidating Statements of Operations
Net cash (used in) provided by operating activities	$ 335	$ (16,713)
Cash flows from investing activities:
Acquisitions, net of cash acquired	(55,477)	0
Purchase of property, plant and equipment	(63,584)	(57,774)
Proceeds from the sale of property, plant, and equipment	1,777	1,439
Proceeds from sale of businesses	0	47,821
Other	(1,045)	(857)
Net cash used in investing activities	(118,329)	(9,371)
Cash flows from financing activities:
Payments on long-term debt	(4,414)	(7,603)
Payments on acquisition-related liabilities	(11,374)	(11,397)
Debt issuance costs	(1,566)
Other	(5,719)	(1,180)
Net cash used in financing activities	(23,058)	(67,662)
Impact of foreign currency on cash	58	177
Net (decrease) increase in cash	(140,994)	(93,569)
Cash and cash equivalents—beginning of period	520,451	380,961	$ 380,961
Cash and cash equivalents—end of period	379,457	287,392	520,451
Summit Materials, LLC
Condensed Consolidating Statements of Operations
Net cash (used in) provided by operating activities	335	(16,713)
Cash flows from investing activities:
Acquisitions, net of cash acquired	(55,477)	0
Purchase of property, plant and equipment	(63,584)	(57,774)
Proceeds from the sale of property, plant, and equipment	1,777	1,439
Proceeds from sale of businesses	0	47,821
Other	(1,045)	(857)
Net cash used in investing activities	(118,329)	(9,371)
Cash flows from financing activities:
Capital distributions to member	15	(47,482)
Loans received from and payments made on loans from other Summit Companies	0	0
Payments on long-term debt	(4,414)	(7,603)
Payments on acquisition-related liabilities	(11,374)	(11,397)
Debt issuance costs	(1,566)
Other	(5,719)	(1,180)
Net cash used in financing activities	(23,058)	(67,662)
Impact of foreign currency on cash	58	177
Net (decrease) increase in cash	(140,994)	(93,569)
Cash and cash equivalents—beginning of period	520,451	380,961	380,961
Cash and cash equivalents—end of period	379,457	287,392	520,451
Summit Materials, LLC | Eliminations
Condensed Consolidating Statements of Operations
Net cash (used in) provided by operating activities	0	0
Cash flows from investing activities:
Acquisitions, net of cash acquired	0
Purchase of property, plant and equipment	0	0
Proceeds from the sale of property, plant, and equipment	0	0
Proceeds from sale of businesses		0
Other	0	0
Net cash used in investing activities	0	0
Cash flows from financing activities:
Capital distributions to member	0	0
Loans received from and payments made on loans from other Summit Companies	3,548	702
Payments on long-term debt	0	0
Payments on acquisition-related liabilities	0	0
Debt issuance costs	0
Other	0	0
Net cash used in financing activities	3,548	702
Impact of foreign currency on cash	0	0
Net (decrease) increase in cash	3,548	702
Cash and cash equivalents—beginning of period	(7,018)	(4,684)	(4,684)
Cash and cash equivalents—end of period	(3,470)	(3,982)	(7,018)
Summit Materials, LLC | Issuers | Reportable Legal Entities
Condensed Consolidating Statements of Operations
Net cash (used in) provided by operating activities	(55,528)	(48,551)
Cash flows from investing activities:
Acquisitions, net of cash acquired	0
Purchase of property, plant and equipment	(2,895)	(459)
Proceeds from the sale of property, plant, and equipment	0	0
Proceeds from sale of businesses		0
Other	0	0
Net cash used in investing activities	(2,895)	(459)
Cash flows from financing activities:
Capital distributions to member	(55,870)	(47,482)
Loans received from and payments made on loans from other Summit Companies	(25,853)	4,703
Payments on long-term debt	(1,274)	(1,588)
Payments on acquisition-related liabilities	0	0
Debt issuance costs	(1,566)
Other	(2,740)	(1,180)
Net cash used in financing activities	(87,303)	(45,547)
Impact of foreign currency on cash	0	0
Net (decrease) increase in cash	(145,726)	(94,557)
Cash and cash equivalents—beginning of period	498,307	365,044	365,044
Cash and cash equivalents—end of period	352,581	270,487	498,307
Summit Materials, LLC | Guarantors  | Reportable Legal Entities
Condensed Consolidating Statements of Operations
Net cash (used in) provided by operating activities	49,394	25,873
Cash flows from investing activities:
Acquisitions, net of cash acquired	(55,477)
Purchase of property, plant and equipment	(58,356)	(55,522)
Proceeds from the sale of property, plant, and equipment	1,777	1,360
Proceeds from sale of businesses		47,821
Other	(1,045)	(857)
Net cash used in investing activities	(113,101)	(7,198)
Cash flows from financing activities:
Capital distributions to member	55,885	0
Loans received from and payments made on loans from other Summit Companies	24,951	(2,052)
Payments on long-term debt	(3,140)	(6,015)
Payments on acquisition-related liabilities	(11,374)	(11,397)
Debt issuance costs	0
Other	(2,766)	0
Net cash used in financing activities	63,556	(19,464)
Impact of foreign currency on cash	0	0
Net (decrease) increase in cash	(151)	(789)
Cash and cash equivalents—beginning of period	2,864	2,264	2,264
Cash and cash equivalents—end of period	2,713	1,475	2,864
Summit Materials, LLC | Non-Guarantors | Reportable Legal Entities
Condensed Consolidating Statements of Operations
Net cash (used in) provided by operating activities	6,469	5,965
Cash flows from investing activities:
Acquisitions, net of cash acquired	0
Purchase of property, plant and equipment	(2,333)	(1,793)
Proceeds from the sale of property, plant, and equipment	0	79
Proceeds from sale of businesses		0
Other	0	0
Net cash used in investing activities	(2,333)	(1,714)
Cash flows from financing activities:
Capital distributions to member	0	0
Loans received from and payments made on loans from other Summit Companies	(2,646)	(3,353)
Payments on long-term debt	0	0
Payments on acquisition-related liabilities	0	0
Debt issuance costs	0
Other	(213)	0
Net cash used in financing activities	(2,859)	(3,353)
Impact of foreign currency on cash	58	177
Net (decrease) increase in cash	1,335	1,075
Cash and cash equivalents—beginning of period	26,298	18,337	18,337
Cash and cash equivalents—end of period	$ 27,633	$ 19,412	$ 26,298