Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended
	Apr. 01, 2017	Apr. 02, 2016
Revenue:
Product	$ 225,017	$ 180,102
Service	34,027	27,937
Net revenue	259,044	208,039
Delivery and subcontract revenue	25,233	20,340
Total revenue	284,277	228,379
Cost of revenue (excluding items shown separately below):
Product	166,968	132,396
Service	25,371	24,054
Net cost of revenue	192,339	156,450
Delivery and subcontract cost	25,233	20,340
Total cost of revenue	217,572	176,790
General and administrative expenses	58,468	45,370
Depreciation, depletion, amortization and accretion	39,748	32,360
Transaction costs	1,273	3,316
Operating loss	(32,784)	(29,457)
Interest expense	24,969	21,577
Loss on debt financings	190
Other expense (income), net	(657)	(334)
Loss from operations before taxes	(57,286)	(50,700)
Income tax benefit	(2,178)	(8,166)
Net loss	(55,108)	(42,534)
Net loss attributable to noncontrolling interest in subsidiaries	(98)	(79)
Net loss attributable to Summit Holdings	(2,566)	(21,337)
Net loss attributable to Summit Materials, Inc. / member of Summit Materials, LLC	(52,444)	(21,118)
Summit Materials, LLC
Revenue:
Product	225,017	180,102
Service	34,027	27,937
Net revenue	259,044	208,039
Delivery and subcontract revenue	25,233	20,340
Total revenue	284,277	228,379
Cost of revenue (excluding items shown separately below):
Product	166,968	132,396
Service	25,371	24,054
Net cost of revenue	192,339	156,450
Delivery and subcontract cost	25,233	20,340
Total cost of revenue	217,572	176,790
General and administrative expenses	58,468	45,370
Depreciation, depletion, amortization and accretion	39,748	32,360
Transaction costs	1,273	3,316
Operating loss	(32,784)	(29,457)
Interest expense	24,715	21,286
Loss on debt financings	190
Other expense (income), net	(657)	(351)
Loss from operations before taxes	(57,032)	(50,392)
Income tax benefit	(2,178)	(8,149)
Net loss	(54,854)	(42,243)
Net loss attributable to noncontrolling interest	(98)	(79)
Net loss attributable to Summit Materials, Inc. / member of Summit Materials, LLC	$ (54,756)	$ (42,164)
Common Class A
Loss per share of Class A common stock:
Basic	$ (0.50)	$ (0.42)
Diluted	$ (0.50)	$ (0.42)
Weighted average shares of Class A common stock:
Basic	105,171,661	50,882,663
Diluted	105,171,661	50,882,663