Unaudited Consolidated Statements of Cash Flows - Summit Materials LLC - USD ($) $ in Thousands	6 Months Ended
	Jul. 01, 2023	Jul. 02, 2022
Cash flows from operating activities:
Net income	$ 53,516	$ 157,966
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, depletion, amortization and accretion	110,659	107,511
Share-based compensation expense	9,924	10,156
Net gain on asset and business disposals	(3,655)	(174,902)
Non-cash loss on debt financings	161	0
Change in deferred tax asset, net	9,350	44,160
Other	(21)	(357)
Decrease (increase) in operating assets, net of acquisitions and dispositions:
Accounts receivable, net	(101,119)	(57,797)
Inventories	(27,115)	(58,092)
Costs and estimated earnings in excess of billings	(28,760)	(36,165)
Other current assets	(1,070)	(2,130)
Other assets	1,732	(593)
(Decrease) increase in operating liabilities, net of acquisitions and dispositions:
Accounts payable	52,157	39,602
Accrued expenses	19,048	(11,108)
Billings in excess of costs and estimated earnings	1,299	(737)
Other liabilities	(1,533)	(2,214)
Net cash provided by operating activities	94,042	16,254
Cash flows from investing activities:
Acquisitions, net of cash acquired	(237,666)	(1,933)
Purchases of property, plant and equipment	(126,893)	(129,580)
Proceeds from the sale of property, plant and equipment	5,760	5,427
Proceeds from sale of businesses	0	341,741
Other	(1,852)	(1,098)
Net cash (used in) provided by investing activities	(360,651)	214,557
Cash flows from financing activities:
Debt issuance costs	(1,566)	0
Payments on debt	(6,720)	(86,821)
Payments on acquisition-related liabilities	(11,539)	(11,577)
Distributions	0	(25)
Other	(4,838)	(187)
Net cash used in financing activities	(24,579)	(145,996)
Impact of foreign currency on cash	747	(461)
Net (decrease) increase in cash	(290,441)	84,354
Cash and cash equivalents – beginning of period	520,451	380,961
Cash and cash equivalents – end of period	230,010	465,315
Summit Materials, LLC
Cash flows from operating activities:
Net income	62,879	195,714
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, depletion, amortization and accretion	110,659	107,511
Share-based compensation expense	9,924	10,156
Net gain on asset and business disposals	(3,655)	(174,902)
Non-cash loss on debt financings	161	0
Change in deferred tax asset, net	0	7,366
Other	(21)	(357)
Decrease (increase) in operating assets, net of acquisitions and dispositions:
Accounts receivable, net	(101,119)	(57,797)
Inventories	(27,115)	(58,092)
Costs and estimated earnings in excess of billings	(28,760)	(36,165)
Other current assets	(1,070)	(2,130)
Other assets	1,732	(593)
(Decrease) increase in operating liabilities, net of acquisitions and dispositions:
Accounts payable	51,613	39,602
Accrued expenses	19,048	(11,108)
Billings in excess of costs and estimated earnings	1,299	(737)
Other liabilities	(1,533)	(2,214)
Net cash provided by operating activities	94,042	16,254
Cash flows from investing activities:
Acquisitions, net of cash acquired	(237,666)	(1,933)
Purchases of property, plant and equipment	(126,893)	(129,580)
Proceeds from the sale of property, plant and equipment	5,760	5,427
Proceeds from sale of businesses	0	341,741
Other	(1,852)	(1,098)
Net cash (used in) provided by investing activities	(360,651)	214,557
Cash flows from financing activities:
Capital (distributions to) contributions by member	84	(47,386)
Debt issuance costs	(1,566)	0
Payments on debt	(6,720)	(86,821)
Payments on acquisition-related liabilities	(11,539)	(11,577)
Distributions	0	(25)
Other	(4,838)	(187)
Net cash used in financing activities	(24,579)	(145,996)
Impact of foreign currency on cash	747	(461)
Net (decrease) increase in cash	(290,441)	84,354
Cash and cash equivalents – beginning of period	520,451	380,961
Cash and cash equivalents – end of period	$ 230,010	$ 465,315