Summit Materials (SUM) 10-Q 4 May 16 2016 Q1 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	Apr. 02, 2016	Apr. 02, 2016	May. 03, 2016
Document Information [Line Items]
Entity Registrant Name		Summit Materials, Inc.
Entity Central Index Key		1,621,563
Document Type		10-Q
Document Period End Date		Apr. 2, 2016
Amendment Flag		false
Current Fiscal Year End Date		--12-31
Entity Current Reporting Status		Yes
Entity Filer Category		Non-accelerated Filer
Document Fiscal Year Focus		2,016
Document Fiscal Period Focus		Q1
Membership interests description	As of April 27, 2016, 100% of Summit Materials, LLC's outstanding limited liability company interests were held by Summit Materials Intermediate Holdings, LLC, its sole member and an indirect subsidiary of Summit Materials, Inc.
Common Class A
Document Information [Line Items]
Entity Common Stock, Shares Outstanding			62,622,655
Common Class B
Document Information [Line Items]
Entity Common Stock, Shares Outstanding			69,007,297
Summit Materials, LLC
Document Information [Line Items]
Entity Registrant Name		Summit Materials, LLC
Entity Central Index Key		1,571,371
Document Type		10-Q
Document Period End Date		Apr. 2, 2016
Amendment Flag		false
Current Fiscal Year End Date		--12-31
Entity Current Reporting Status		Yes
Entity Filer Category		Non-accelerated Filer
Document Fiscal Year Focus		2,016
Document Fiscal Period Focus		Q1
Membership interests percentage	100.00%	100.00%

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Apr. 02, 2016	Jan. 02, 2016
Current assets:
Cash and cash equivalents	$ 92,244	$ 186,405
Accounts receivable, net	132,513	145,544
Costs and estimated earnings in excess of billings	7,797	5,690
Inventories	171,991	130,082
Other current assets	15,003	4,807
Total current assets	419,548	472,528
Property, plant and equipment, less accumulated depreciation, depletion and amortization (April 2, 2016 - $395,192 and January 2, 2016 - $366,505)	1,397,702	1,269,006
Goodwill	735,746	596,397
Intangible assets, less accumulated amortization (April 2, 2016 - $5,871 and January 2, 2016 - $5,237)	14,521	15,005
Other assets	46,531	43,243
Total assets	2,614,048	2,396,179
Current liabilities:
Current portion of debt	6,500	6,500
Current portion of acquisition-related liabilities	17,797	20,584
Accounts payable	91,560	81,397
Accrued expenses	78,963	92,942
Billings in excess of costs and estimated earnings	10,667	13,081
Total current liabilities	205,487	214,504
Long-term debt	1,517,680	1,273,652
Acquisition-related liabilities	32,175	39,977
Other noncurrent liabilities	129,050	100,186
Total liabilities	$ 1,884,392	$ 1,628,319
Commitments and contingencies
Stockholders' equity / Member's interest
Additional paid-in capital	$ 622,608	$ 619,003
Accumulated (deficit) earnings	(11,932)	10,870
Accumulated other comprehensive loss	(1,597)	(2,795)
Stockholders' equity	610,267	628,265
Noncontrolling interest in consolidated subsidiaries	1,283	1,362
Noncontrolling interest in Summit Materials, Inc.	118,106	138,233
Total stockholders' equity	729,656	767,860
Total liabilities and stockholders' equity / member's interest	2,614,048	2,396,179
Common Class A
Stockholders' equity / Member's interest
Common stock	498	497
Common Class B
Stockholders' equity / Member's interest
Common stock	690	690
Summit Materials, LLC
Current assets:
Cash and cash equivalents	91,227	185,388
Accounts receivable, net	132,513	145,544
Costs and estimated earnings in excess of billings	7,797	5,690
Inventories	171,991	130,082
Other current assets	15,003	4,807
Total current assets	418,531	471,511
Property, plant and equipment, less accumulated depreciation, depletion and amortization (April 2, 2016 - $395,192 and January 2, 2016 - $366,505)	1,397,702	1,269,006
Goodwill	735,746	596,397
Intangible assets, less accumulated amortization (April 2, 2016 - $5,871 and January 2, 2016 - $5,237)	14,521	15,005
Other assets	46,531	43,243
Total assets	2,613,031	2,395,162
Current liabilities:
Current portion of debt	6,500	6,500
Current portion of acquisition-related liabilities	15,297	18,084
Accounts payable	91,560	81,397
Accrued expenses	78,946	92,942
Billings in excess of costs and estimated earnings	10,667	13,081
Total current liabilities	202,970	212,004
Long-term debt	1,517,680	1,273,652
Acquisition-related liabilities	25,436	31,028
Other noncurrent liabilities	129,067	100,186
Total liabilities	$ 1,875,153	$ 1,616,870
Commitments and contingencies
Stockholders' equity / Member's interest
Member's equity	$ 1,051,987	$ 1,050,882
Accumulated (deficit) earnings	(289,334)	(245,486)
Accumulated other comprehensive loss	(26,058)	(28,466)
Member's interest	736,595	776,930
Noncontrolling interest	1,283	1,362
Total member's interest	737,878	778,292
Total liabilities and stockholders' equity / member's interest	$ 2,613,031	$ 2,395,162

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Apr. 02, 2016	Jan. 02, 2016
Property, plant and equipment, accumulated depreciation, depletion and amortization	$ 395,192	$ 366,505
Intangible assets, accumulated amortization	5,871	5,237
Summit Materials, LLC
Property, plant and equipment, accumulated depreciation, depletion and amortization	395,192	366,505
Intangible assets, accumulated amortization	$ 5,871	$ 5,237
Common Class A
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	1,000,000,000	1,000,000,000
Common stock, shares issued	49,746,982	49,745,944
Common stock, shares outstanding	49,746,982	49,745,944
Common Class B
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	250,000,000	250,000,000
Common stock, shares issued	69,007,297	69,007,297
Common stock, shares outstanding	69,007,297	69,007,297

Consolidated Statements of Oper

Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended
	Apr. 02, 2016	Mar. 28, 2015
Revenue:
Product	$ 180,102	$ 148,920
Service	27,937	26,219
Net revenue	208,039	175,139
Delivery and subcontract revenue	20,340	18,848
Total revenue	228,379	193,987
Cost of revenue (excluding items shown separately below):
Product	132,494	119,791
Service	24,054	19,630
Net cost of revenue	156,548	139,421
Delivery and subcontract cost	20,340	18,848
Total cost of revenue	176,888	158,269
General and administrative expenses	45,370	67,234
Depreciation, depletion, amortization and accretion	32,360	26,126
Transaction costs	3,316	1,364
Operating (loss) income	(29,555)	(59,006)
Other (income) expense, net	(432)	391
Loss on debt financings		799
Interest expense	21,577	24,109
(Loss) income from operations before taxes	(50,700)	(84,305)
Income tax benefit	(8,166)	(4,468)
Net income (loss)	(42,534)	(79,837)
Net loss attributable to noncontrolling interest in subsidiaries	(79)	(1,982)
Net loss attributable to Summit Holdings	(21,337)	(67,704)
Net (loss) income attributable to Summit Materials, Inc. / member of Summit Materials, LLC	(21,118)	(10,151)
Summit Materials, LLC
Revenue:
Product	180,102	148,920
Service	27,937	26,219
Net revenue	208,039	175,139
Delivery and subcontract revenue	20,340	18,848
Total revenue	228,379	193,987
Cost of revenue (excluding items shown separately below):
Product	132,494	119,791
Service	24,054	19,630
Net cost of revenue	156,548	139,421
Delivery and subcontract cost	20,340	18,848
Total cost of revenue	176,888	158,269
General and administrative expenses	45,370	67,234
Depreciation, depletion, amortization and accretion	32,360	26,126
Transaction costs	3,316	1,364
Operating (loss) income	(29,555)	(59,006)
Other (income) expense, net	(449)	391
Loss on debt financings		799
Interest expense	21,286	24,109
(Loss) income from operations before taxes	(50,392)	(84,305)
Income tax benefit	(8,149)	(4,468)
Net income (loss)	(42,243)	(79,837)
Net loss attributable to noncontrolling interest	(79)	(1,982)
Net (loss) income attributable to Summit Materials, Inc. / member of Summit Materials, LLC	$ (42,164)	$ (77,855)
Common Class A
Net income per share of Class A common stock:
Basic	$ (0.42)	$ (0.37)
Diluted	$ (0.42)	$ (0.37)
Weighted average shares of Class A common stock:
Basic	49,746,971	27,319,846
Diluted	49,746,971	27,319,846

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended
	Apr. 02, 2016	Mar. 28, 2015
Net loss	$ (42,534)	$ (79,837)
Other comprehensive loss:
Foreign currency translation adjustment	4,642	(6,299)
Loss on cash flow hedges	(2,234)
Other comprehensive loss	2,408	(6,299)
Comprehensive loss	(40,126)	(86,136)
Less comprehensive (loss) income attributable to the noncontrolling interest in consolidated subsidiaries	(79)	(1,982)
Less comprehensive (loss) income attributable Summit Holdings	(20,127)	(72,953)
Comprehensive loss attributable to Summit Materials, Inc. / Summit Materials, LLC	(19,920)	(11,201)
Summit Materials, LLC
Net loss	(42,243)	(79,837)
Other comprehensive loss:
Foreign currency translation adjustment	4,642	(6,299)
Loss on cash flow hedges	(2,234)
Other comprehensive loss	2,408	(6,299)
Comprehensive loss	(39,835)	(86,136)
Less comprehensive loss attributable to noncontrolling interest	(79)	(1,982)
Comprehensive loss attributable to Summit Materials, Inc. / Summit Materials, LLC	$ (39,756)	$ (84,154)

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Apr. 02, 2016	Mar. 28, 2015
Cash flow from operating activities:
Net loss	$ (42,534)	$ (79,837)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation, depletion, amortization and accretion	36,817	27,358
Share-based compensation expense	2,036	15,217
Deferred income tax benefit	(17)
Net gain on asset disposals	(1,683)	(1,834)
Net (gain) loss on debt financings		688
Other	130	780
Decrease (increase) in operating assets, net of acquisitions:
Accounts receivable, net	22,281	30,309
Inventories	(25,612)	(21,413)
Costs and estimated earnings in excess of billings	(1,981)	(1,662)
Other current assets	(9,583)	(303)
Other assets	351	755
Decrease (increase) in operating assets, net of acquisitions:
Accounts payable	(618)	(10,045)
Accrued expenses	(17,890)	(20,467)
Billings in excess of costs and estimated earnings	(2,552)	(649)
Other liabilities	(1,103)	(203)
Net cash used in operating activities	(41,958)	(61,306)
Cash flow from investing activities:
Acquisitions, net of cash acquired	(249,111)
Purchases of property, plant and equipment	(39,125)	(17,708)
Proceeds from the sale of property, plant and equipment	6,019	2,741
Other		(276)
Net cash used for investing activities	(282,217)	(15,243)
Cash flow from financing activities:
Proceeds from equity offerings		460,000
Capital issuance costs		(35,956)
Proceeds from debt issuances	250,000	104,000
Debt issuance costs	(5,001)	(4,055)
Payments on debt	(3,458)	(106,441)
Purchase of noncontrolling interests		(35,000)
Payments on acquisition-related liabilities	(11,973)	(4,032)
Net cash provided by (used for) financing activities	229,568	378,516
Impact of cash on foreign currency	446	(202)
Net increase (decrease) in cash	(94,161)	301,765
Cash and cash equivalents-beginning of period	186,405	13,215
Cash and cash equivalents-end of period	92,244	314,980
Summit Materials, LLC
Cash flow from operating activities:
Net loss	(42,243)	(79,837)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation, depletion, amortization and accretion	36,526	27,358
Share-based compensation expense	2,036	15,217
Net gain on asset disposals	(1,683)	(1,834)
Net (gain) loss on debt financings		688
Other	130	780
Decrease (increase) in operating assets, net of acquisitions:
Accounts receivable, net	22,281	30,309
Inventories	(25,612)	(21,413)
Costs and estimated earnings in excess of billings	(1,981)	(1,662)
Other current assets	(9,583)	(303)
Other assets	351	755
Decrease (increase) in operating assets, net of acquisitions:
Accounts payable	(618)	(10,045)
Accrued expenses	(17,907)	(20,467)
Billings in excess of costs and estimated earnings	(2,552)	(649)
Other liabilities	(1,103)	(203)
Net cash used in operating activities	(41,958)	(61,306)
Cash flow from investing activities:
Acquisitions, net of cash acquired	(249,111)
Purchases of property, plant and equipment	(39,125)	(17,708)
Proceeds from the sale of property, plant and equipment	6,019	2,741
Other		(276)
Net cash used for investing activities	(282,217)	(15,243)
Cash flow from financing activities:
Capital contributions by partners		397,975
Capital issuance costs		(8,931)
Proceeds from debt issuances	250,000	104,000
Debt issuance costs	(5,001)	(4,055)
Payments on debt	(3,458)	(106,441)
Payments on acquisition-related liabilities	(9,473)	(4,032)
Distributions	(2,500)
Net cash provided by (used for) financing activities	229,568	378,516
Impact of cash on foreign currency	446	(202)
Net increase (decrease) in cash	(94,161)	301,765
Cash and cash equivalents-beginning of period	185,388	13,215
Cash and cash equivalents-end of period	$ 91,227	$ 314,980

Consolidated Statements of Chan

Consolidated Statements of Changes in Stockholders' Equity / Member's Interest and Redeemable Noncontrolling Interest - USD ($) $ in Thousands	Summit Materials, LLCMembers' equity	Summit Materials, LLCTotal Member's Interest	Summit Materials, LLCNoncontrolling Interest in subsidiaries	Summit Materials, LLCAccumulated Earnings/Deficit	Summit Materials, LLCAccumulated Other Comprehensive Loss	Summit Materials, LLC	Partners' Interest	Noncontrolling Interest in subsidiaries	Accumulated Earnings/Deficit	Accumulated Other Comprehensive Loss	Common StockCommon Class A	Common StockCommon Class B	Additional Paid-in CapitalCommon Class A	Additional Paid-in CapitalCommon Class B	Additional Paid-in Capital	Noncontrolling Interest in Summit Inc.	Common Class A	Common Class B	Total
Beginning Balance at Dec. 27, 2014						$ 33,740													$ 33,740
Increase (decrease) in redeemable noncontrolling interest
Accretion/ redemption value adjustment																			32,252
Net loss																			(1,890)
Ending Balance at Mar. 11, 2015																			64,102
Beginning Balance at Dec. 27, 2014	$ 518,647	$ 286,983	$ 1,298	$ (217,416)	$ (15,546)		$ 285,685	$ 1,298											286,983
Increase (decrease) in stockholders' equity / members' interest and redeemable noncontrolling interest
Accretion/ redemption value adjustment							(32,252)												(32,252)
Net (loss) income							(41,338)	(77)											(41,415)
Other comprehensive income							(5,249)												(5,249)
Share-based compensation							424												424
Ending Balance at Mar. 11, 2015							207,270	1,221											208,491
Beginning Balance at Dec. 27, 2014						33,740													33,740
Increase (decrease) in redeemable noncontrolling interest
Accretion/ redemption value adjustment						(31,850)
Net loss						(1,890)
Beginning Balance at Dec. 27, 2014	518,647	286,983	1,298	(217,416)	(15,546)		285,685	1,298											286,983
Increase (decrease) in stockholders' equity / members' interest and redeemable noncontrolling interest
Contributed capital	453,146	453,146
Accretion/ redemption value adjustment		(32,252)		(32,252)
Net (loss) income		(77,947)	(92)	(77,855)		(79,837)													(79,837)
Other comprehensive income		(6,299)			(6,299)	(6,299)													(6,299)
Share-based compensation	15,217	15,217
Ending Balance at Mar. 28, 2015								1,206	$ (10,151)	$ (1,050)	$ 266	$ 690			$ 456,406	$ 180,904			628,271
Ending Balance at Mar. 28, 2015	987,010	638,848	1,206	(327,523)	(21,845)
Ending Balance (in shares) at Mar. 28, 2015											26,584,738	69,007,297
Beginning Balance at Dec. 27, 2014						33,740													33,740
Beginning Balance at Dec. 27, 2014	518,647	286,983	1,298	(217,416)	(15,546)		285,685	1,298											286,983
Ending Balance at Jan. 02, 2016								1,362	10,870	(2,795)	$ 497	$ 690			619,003	138,233			767,860
Ending Balance at Jan. 02, 2016						778,292
Ending Balance at Jan. 02, 2016	1,050,882	778,292	1,362	(245,486)	(28,466)
Ending Balance (in shares) at Jan. 02, 2016											49,745,944	69,007,297					49,745,944	69,007,297
Beginning Balance at Mar. 11, 2015																			64,102
Increase (decrease) in redeemable noncontrolling interest
Purchase of redeemable noncontrolling interst																			(64,102)
Beginning Balance at Mar. 11, 2015							207,270	1,221											208,491
Increase (decrease) in stockholders' equity / members' interest and redeemable noncontrolling interest
Recording of noncontrolling interest upon reorganization							$ (207,270)									207,270
Net (loss) income								(15)	(10,151)							(26,366)			(36,532)
Issuance of Shares											$ 256	$ 690	$ 423,788	$ (690)					424,044
Issuance of Shares (in shares)											25,555,555	69,007,397
Other comprehensive income										(1,050)									(1,050)
Share repurchase (in shares)												(100)
Purchase of redeemable noncontrolling interests (in shares)											1,029,183
Purchase of redeemable noncontrolling interests											$ 10				18,515				18,525
Share-based compensation															14,793				14,793
Ending Balance at Mar. 28, 2015								1,206	(10,151)	(1,050)	$ 266	$ 690			456,406	180,904			628,271
Ending Balance at Mar. 28, 2015	987,010	638,848	1,206	(327,523)	(21,845)
Ending Balance (in shares) at Mar. 28, 2015											26,584,738	69,007,297
Beginning Balance at Jan. 02, 2016	1,050,882	778,292	1,362	(245,486)	(28,466)
Beginning Balance at Jan. 02, 2016								1,362	10,870	(2,795)	$ 497	$ 690			619,003	138,233			767,860
Beginning Balance (in shares) at Jan. 02, 2016											49,745,944	69,007,297					49,745,944	69,007,297
Increase (decrease) in stockholders' equity / members' interest and redeemable noncontrolling interest
Contributed capital	(115)	(115)
Net (loss) income		(42,243)	(79)	(42,164)		(42,243)		(79)	(21,118)							(21,337)			(42,534)
Issuance of Shares											$ 1				(115)				(114)
Issuance of Shares (in shares)											1,038
Other comprehensive income		2,408			2,408	2,408				1,198						1,210			2,408
Distributions	(2,500)	(2,500)
Share-based compensation	3,720	2,036		(1,684)					(1,684)						3,720				2,036
Ending Balance at Apr. 02, 2016								$ 1,283	$ (11,932)	$ (1,597)	$ 498	$ 690			$ 622,608	$ 118,106			$ 729,656
Ending Balance at Apr. 02, 2016						$ 737,878
Ending Balance at Apr. 02, 2016	$ 1,051,987	$ 737,878	$ 1,283	$ (289,334)	$ (26,058)
Ending Balance (in shares) at Apr. 02, 2016											49,746,982	69,007,297					49,746,982	69,007,297

Summary of Organization and Sig

Summary of Organization and Significant Accounting Policies	3 Months Ended
	Apr. 02, 2016
Company Information
Summary of Organization and Significant Accounting Policies	1. SUMMARY OF ORGANIZATION AND SIGNIFICANT ACCOUNTING POLICIES Summit Materials, Inc. (“Summit Inc.” and, together with its subsidiaries, the “Company”) is a vertically-integrated construction materials company. The Company is engaged in the production and sale of aggregates, cement, ready-mixed concrete, asphalt paving mix and concrete products and owns and operates quarries, sand and gravel pits, two cement plants, cement distribution terminals, ready-mixed concrete plants, asphalt plants and landfill sites. It is also engaged in paving and related services. The Company has three operating segments, which are also its reporting segments: West; East; and Cement. Substantially all of the Company’s 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 and to cyclical changes in construction spending, among other factors. On September 23, 2014, Summit Inc. was formed as a Delaware corporation to be a holding company. Its sole material asset is a controlling equity interest in Summit Materials Holdings L.P. (“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 and, through Summit Holdings, conducts its business. Together with Summit Inc., certain investment funds affiliated with Blackstone Capital Partners V L.P. and Silverhawk Summit, L.P. (collectively, the “Sponsors”) are the primary owners of Summit Holdings. Equity Offerings —Summit Inc. commenced operations on March 11, 2015 upon the pricing of the initial public offering of its Class A common stock (“IPO”). Summit Inc. raised $433.0 million, net of underwriting discounts, through the issuance of 25,555,555 shares of Class A common stock at a public offering price of $18.00 per share. Summit Inc. used the offering proceeds to purchase a number of newly-issued Class A Units (“LP Units”) from Summit Holdings equal to the number of shares of Class A common stock issued to the public. Summit Inc. caused Summit Holdings to use these proceeds: (i) to redeem $288.2 million in aggregate principal amount of outstanding 10 1 / 2 % senior notes due January 31, 2020 (“2020 Notes”); (ii) to purchase 71,428,571 Class B Units of Continental Cement Company, L.L.C. (“Continental Cement”); (iii) to pay a one-time termination fee of $13.8 million primarily to affiliates of the Sponsors in connection with the termination of a transaction and management fee agreement; and (iv) for general corporate purposes. The $288.2 million redemption of 2020 Notes was completed in the second quarter of 2015 at a redemption price equal to par plus an applicable premium of $38.2 million plus $5.2 million of accrued and unpaid interest. On August 11, 2015, Summit Inc. raised $555.8 million, net of underwriting discounts, through the issuance of 22,425,000 shares of Class A common stock at a public offering price of $25.75 per share ("follow-on offering"). Summit Inc. used these proceeds to purchase 3,750,000 newly-issued LP Units from Summit Holdings and 18,675,000 LP Units from certain of our pre-IPO owners, at a purchase price per LP Unit equal to the public offering price per share of Class A common stock, less underwriting discounts and commissions. Summit Holdings used the proceeds from the 3,750,000 newly-issued LP Units to pay the deferred purchase price of $80.0 million related to the July 17, 2015 acquisition of a cement plant and a quarry in Davenport, Iowa, and seven cement terminals along the Mississippi River (the “Davenport Assets”) and for general corporate purposes. 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. 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 January 2, 2016. The Company continues to follow the accounting policies set forth in those 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 2, 2016 and the results of operations and cash flows for the three months ended April 2, 2016 and March 28, 2015. All significant intercompany balances and transactions have been eliminated. The Company’s fiscal year is based on a 52 -53 week year with each quarter composed of 13 weeks ending on a Saturday. The 53 -week year occurs approximately once every seven years and occurred in 2015. The additional week in the 53-week year was included in the fourth quarter of 2015. Principles of Consolidation —The consolidated financial statements include the accounts of Summit Inc. and its majority owned subsidiaries. As a result of the Reorganization, Summit Holdings became a variable interest entity. Summit Inc. is the primary beneficiary of Summit Holdings as a result of its 100% voting power and control over Summit Holdings and its obligation to absorb losses and its right to receive benefits of Summit Holdings and thus consolidates Summit Holdings in its consolidated financial statements with a corresponding noncontrolling interest elimination of 50.3% between January 2, 2016 and April 2, 2016 and 72.2% between March 11, 2015 and March 28, 2015. Collectively, Summit Inc.’s August 2015 follow-on offering and its December 2015 stock dividend decreased the noncontrolling interest’s economic interest from 72.2% to 50.3% . Noncontrolling interests in consolidated subsidiaries represent a 20% ownership in Ohio Valley Asphalt, LLC and, prior to the IPO and concurrent purchase of the noncontrolling interests of Continental Cement, a 30% redeemable ownership in Continental Cement. All intercompany balances and transactions have been eliminated. The Company attributes consolidated stockholders’ equity and net income separately to the controlling and noncontrolling interests. The Company accounts for investments in entities for which it has an ownership of 20% to 50% using the equity method of accounting. 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, 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. Management adjusts such estimates and assumptions when circumstances dictate. 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 22 U.S. states and in British Columbia, Canada, with the most significant revenue generated in Texas, Kansas, Utah, Missouri and Kentucky. 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 2, 2016. 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 or diluted earnings per share. 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 Company has entered into interest rate derivatives on $200.0 million of its term loan borrowings to add stability to interest expense and to manage its exposure to interest rate movements. The effective portion of changes in the fair value of derivatives designated and that qualify as cash flow hedges is recorded in accumulated other comprehensive loss and will be subsequently reclassified into earnings in the period that the hedged forecasted transaction affects earnings. The fair value of contingent consideration and derivatives as of April 2, 2016 and January 2, 2016 was: April 2, January 2, 2016 2016 Current portion of acquisition-related liabilities and Accrued expenses: Contingent consideration $ $ Cash flow hedges Acquisition-related liabilities and Other noncurrent liabilities Contingent consideration $ $ Cash flow hedges The fair value of contingent consideration was based on unobservable, or Level 3, inputs, including projected probability-weighted cash payments and an 11.0% 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. The fair value of the cash flow hedges are based on observable, or Level 2, inputs such as interest rates, bond yields and prices in inactive markets. There were no material valuation adjustments in the three months ended April 2, 2016 or March 28, 2015. 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 2, 2016 and January 2, 2016 was: April 2, 2016 January 2, 2016 Fair Value Carrying Value Fair Value Carrying Value Level 2 Long-term debt(1) $ $ $ $ Level 3 Current portion of deferred consideration and noncompete obligations(2) Long term portion of deferred consideration and noncompete obligations(3) (1) $6.5 million included in current portion of debt as of April 2, 2016 and January 2, 2016. Capitalized loan costs of $16.2 million and $11.7 million are excluded, respectively. (2) Included in current portion of acquisition-related liabilities on the balance sheet. (3) Included in acquisition-related liabilities on the balance sheet. 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. Redeemable Noncontrolling Interest — On March 17, 2015, upon the consummation of the IPO and the transactions contemplated by a contribution and purchase agreement entered into with the holders of all of the outstanding Class B Units of Continental Cement, Continental Cement became a wholly-owned indirect subsidiary of Summit Inc. The noncontrolling interests of Continental Cement were acquired for aggregate consideration of $64.1 million, consisting of $35.0 million of cash, 1,029,183 shares of Summit Inc.’s Class A common stock and $15.0 million aggregate principal amount of non-interest bearing notes payable in six annual installments of $2.5 million, beginning on March 17, 2016. New Accounting Standards — In March 2016, the Financial Accounting Standards Board (“FASB”) issued a new accounting standard with targeted amendments to the accounting for employee share-based payments. Accounting Standards Update (“ASU”) 2016-09, Improvements to Employee Share-Based Payment Accounting , requires that the income tax effect of share-based awards be recognized in the income statement and allows entities to elect an accounting method to recognize forfeitures as they occur or to estimate forfeitures, as is currently required. The ASU is effective for public entities for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2016 and interim periods within those years. However, the Company early adopted this ASU as of the beginning of fiscal year 2016 and made an election to recognize forfeitures as they occur. The ASU adoption was applied using a modified retrospective method by means of a $1.7 million cumulative-effect adjustment to equity as of the beginning of the fiscal year. In February 2016, the FASB issued new accounting guidance to the standard of lease accounting, ASU No. 2016-02, Leases , which will result in lessees recognizing most leases on-balance sheet. Lessees are required to disclose more quantitative and qualitative information about their leases than current U.S. GAAP requires. They are also required to apply the new guidance at the beginning of the earliest period presented in the financial statements when they first apply the new standard. The new standard must be adopted by December 15, 2018. Early adoption is permitted. Management is currently assessing the effect that the adoption of this ASU will have on the consolidated financial statements. In May 2014, the FASB issued a new accounting standard to improve and converge the financial reporting requirements for revenue from contracts with customers. ASU No. 2014-09, Revenue from Contracts with Customers , prescribes a five-step model for revenue recognition that will replace most existing revenue recognition guidance in U.S. GAAP. The ASU will supersede nearly all existing revenue recognition guidance under U.S. GAAP and provides that an entity recognize revenue when it transfers promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. This update also requires additional disclosure about the nature, amount, timing and uncertainty of revenue and cash flows arising from customer contracts, including significant judgments and changes in judgments, and assets recognized from costs incurred to obtain or fulfill a contract. ASU No. 2014-09 allows for either full retrospective or modified retrospective adoption. In July 2015, the FASB postponed the effective date of the new revenue standard by one year to the first quarter of 2018. Early adoption is permitted, but no earlier than 2017. Management is currently assessing the effect that the adoption of this standard will have on the consolidated financial statements. Reclassifications — Certain amounts in the prior year have been reclassified to conform to the current period’s presentation.
Summit Materials, LLC
Company Information
Summary of Organization and Significant Accounting Policies	1. SUMMARY OF ORGANIZATION AND SIGNIFICANT ACCOUNTING POLICIES Summit Materials, LLC (“Summit LLC” and, together with its subsidiaries, the “Company”) is a vertically integrated, construction materials company. The Company is engaged in the production and sale of aggregates, cement, ready-mixed concrete, asphalt paving mix and concrete products and owns and operates quarries, sand and gravel pits, two cement plants, cement distribution terminals, ready-mixed concrete plants, asphalt plants and landfill sites. It is also engaged in paving and related services. The Company has three operating segments, which are also its reporting segments: West; East; and Cement. Substantially all of the Company’s 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 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 owners are Summit Materials, Inc. (“Summit Inc.”) and certain investment funds affiliated with Blackstone Capital Partners V L.P. and Silverhawk Summit, L.P. (collectively, the “Sponsors”). 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”) 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. Summit Inc.’s Equity Offerings — Summit Inc. commenced operations on March 11, 2015 upon the pricing of the initial public offering of its Class A common stock (“IPO”). Summit Inc. raised $433.0 million, net of underwriting discounts, through the issuance of 25,555,555 shares of Class A common stock at a public offering price of $18.00 per share. Summit Inc. used the offering proceeds to purchase a number of newly-issued Class A Units (“LP Units”) from Summit Holdings equal to the number of shares of Class A common stock issued to the public. Summit Inc. caused Summit Holdings to use these proceeds: (i) to redeem $288.2 million in aggregate principal amount of outstanding 10 1 / 2 % senior notes due January 31, 2020 (“2020 Notes”); (ii) to purchase 71,428,571 Class B Units of Continental Cement Company, L.L.C. (“Continental Cement”); (iii) to pay a one-time termination fee of $13.8 million primarily to affiliates of the Sponsors in connection with the termination of a transaction and management fee agreement; and (iv) for general corporate purposes. The $288.2 million redemption of 2020 Notes was completed in the second quarter of 2015 at a redemption price equal to par plus an applicable premium of $38.2 million plus $5.2 million of accrued and unpaid interest. On August 11, 2015, Summit Inc. raised $555.8 million, net of underwriting discounts, through the issuance of 22,425,000 shares of Class A common stock at a public offering price of $25.75 per share. Summit Inc. used these proceeds to purchase 3,750,000 newly-issued LP Units from Summit Holdings and 18,675,000 LP Units from certain of our pre-IPO owners, at a purchase price per LP Unit equal to the public offering price per share of Class A common stock, less underwriting discounts and commissions. Summit Holdings used the proceeds from the 3,750,000 newly-issued LP Units to pay the deferred purchase price of $80.0 million related to the July 17, 2015 acquisition of a cement plant and a quarry in Davenport, Iowa, and seven cement terminals along the Mississippi River (the “Davenport Assets”) and for general corporate purposes. 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. 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 January 2, 2016. The Company continues to follow the accounting policies set forth in those 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 2, 2016 and the results of operations and cash flows for the three months ended April 2, 2016 and March 28, 2015. The Company’s fiscal year is based on a 52 -53 week year with each quarter composed of 13 weeks ending on a Saturday. The 53 -week year occurs approximately once every seven years and occurred in 2015. The additional week in the 53-week year was included in the fourth quarter of 2015. The consolidated financial statements include the accounts of Summit LLC and its majority owned subsidiaries. All intercompany balances and transactions have been eliminated. The Company attributes consolidated member’s interest and net income separately to the controlling and noncontrolling interests. Noncontrolling interests in consolidated subsidiaries represent a 20% ownership in Ohio Valley Asphalt, LLC and, prior to the IPO and concurrent purchase of the noncontrolling interests of Continental Cement, a 30% redeemable ownership in Continental Cement. The Company accounts for investments in entities for which it has an ownership of 20% to 50% using the equity method of accounting. 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, 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. Management adjusts such estimates and assumptions when circumstances dictate. 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 22 U.S. states and in British Columbia, Canada, with the most significant revenue generated in Texas, Kansas, Utah, Missouri and Kentucky. 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 2, 2016. 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 Company has entered into interest rate derivatives on $200.0 million of its term loan borrowings to add stability to interest expense and to manage its exposure to interest rate movements. The effective portion of changes in the fair value of derivatives designated and that qualify as cash flow hedges is recorded in accumulated other comprehensive loss and will be subsequently reclassified into earnings in the period that the hedged forecasted transaction affects earnings. The fair value of contingent consideration and derivatives as of April 2, 2016 and January 2, 2016 was: April 2, January 2, 2016 2016 Current portion of acquisition-related liabilities and Accrued expenses: Contingent consideration $ $ Cash flow hedges Acquisition-related liabilities and Other noncurrent liabilities Contingent consideration $ $ Cash flow hedges The fair value of contingent consideration was based on unobservable, or Level 3, inputs, including projected probability-weighted cash payments and an 11.0% 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. The fair value of the cash flow hedges are based on observable, or Level 2, inputs such as interest rates, bond yields and prices in inactive markets. There were no material valuation adjustments in the three months ended April 2, 2016 or March 28, 2015. 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 2, 2016 and January 2, 2016 was: April 2, 2016 January 2, 2016 Fair Value Carrying Value Fair Value Carrying Value Level 2 Long-term debt(1) $ $ $ $ Level 3 Current portion of deferred consideration and noncompete obligations(2) Long term portion of deferred consideration and noncompete obligations(3) (1) $6.5 million included in current portion of debt as of April 2, 2016 and January 2, 2016. Capitalized loan costs of $16.2 million and $11.7 million are excluded, respectively. (2) Included in current portion of acquisition-related liabilities on the balance sheet. (3) Included in acquisition-related liabilities on the balance sheet. 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. Redeemable Noncontrolling Interest — On March 17, 2015, upon the consummation of the IPO and the transactions contemplated by a contribution and purchase agreement entered into with the holders of all of the outstanding Class B Units of Continental Cement, Continental Cement became a wholly-owned indirect subsidiary of Summit LLC. The noncontrolling interests of Continental Cement were acquired for aggregate consideration of $64.1 million, consisting of $35.0 million of cash, 1,029,183 shares of Summit Inc.’s Class A common stock and $15.0 million aggregate principal amount of non-interest bearing notes payable in six annual installments of $2.5 million, beginning on March 17, 2016. The notes payable is a liability of Summit Holdings and, is therefore not included in the liabilities of Summit LLC. However, Summit LLC made a $2.5 million distribution to Summit Holdings in the three months ended April 2, 2016 so that Summit Holdings could make the deferred consideration payment due in March 2016. New Accounting Standards — In March 2016, the Financial Accounting Standards Board (“FASB”) issued a new accounting standard with targeted amendments to the accounting for employee share-based payments. Accounting Standards Update (“ASU”) 2016-09, Improvements to Employee Share-Based Payment Accounting , requires that the income tax effect of share-based awards be recognized in the income statement and allows entities to elect an accounting method to recognize forfeitures as they occur or to estimate forfeitures, as is currently required. The ASU is effective for public entities for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2016 and interim periods within those years. However, the Company early adopted this ASU as of the beginning of fiscal year 2016 and made an election to recognize forfeitures as they occur. The ASU adoption was applied using a modified retrospective method by means of a $1.7 million cumulative-effect adjustment to equity as of the beginning of the fiscal year. In February 2016 the FASB issued new accounting guidance to the standard of lease accounting, ASU No. 2016-02, Leases , which will result in lessees recognizing most leases on balance sheet. Lessees are required to disclose more quantitative and qualitative information about their leases than current U.S. GAAP requires. They are also required to apply the new guidance at the beginning of the earliest period presented in the financial statements when they first apply the new standard. The new standard must be adopted by December 15, 2018. Early adoption is permitted. Management is currently assessing the effect that the adoption of this ASU will have on the consolidated financial statements. In May 2014 the FASB issu ed a new accounting standard to improve and converge the financial reporting requirements for revenue from contracts with customers. ASU No 2014-09, Revenue from Contracts with Customers , prescribes a five-step model for revenue recognition that will replace most existing revenue recognition guidance in U.S. GAAP. The ASU will supersede nearly all existing revenue recognition guidance under U.S. GAAP and provides that an entity recognize revenue when it transfers promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. This update also requires additional disclosure about the nature, amount, timing and uncertainty of revenue and cash flows arising from customer contracts, including significant judgments and changes in judgments, and assets recognized from costs incurred to obtain or fulfill a contract. ASU No. 2014-09 allows for either full retrospective or modified retrospective adoption. In July 2015, the FASB postponed the effective date of the new revenue standard by one year to the first quarter of 2018. Early adoption is permitted, but no earlier than 2017. Management is currently assessing the effect that the adoption of this standard will have on the consolidated financial statements. Reclassifications — Certain amounts in the prior year have been reclassified to conform to the current period’s presentation.

Reorganization

Reorganization	3 Months Ended
	Apr. 02, 2016
Company Information
Reorganization	2. REORGANIZATION Prior to the IPO and Reorganization, the capital structure of Summit Holdings consisted of six different classes of limited partnership interests (Class A-1, Class A-2, Class B-1, Class C, Class D-1 and Class D-2), each of which was subject to unique distribution rights. There were no outstanding Class A-2 interests. In connection with the IPO and the Reorganization, the limited partnership agreement of Summit Holdings was amended and restated to, among other things, modify its capital structure by creating the LP Units, referred to as the “Reclassification.” Immediately following the Reclassification, 69,007,297 LP Units were outstanding. In addition, in substitution for part of the economic benefit of the Class C and Class D interests that was not reflected in the conversion of such interests to LP Units, warrants were issued to holders of Class C interests to purchase an aggregate of 160,333 shares of Class A common stock, and options were issued to holders of Class D interests to purchase an aggregate of 4,358,842 shares of Class A common stock (“leverage restoration options”). The exercise price of the warrants and leverage restoration options is the IPO price of $18.00 per share. In conjunction with the Reclassification of the equity-based awards, the Company recognized a $14.5 million modification charge in general and administrative costs in the three months ended March 28, 2015. The leverage restoration options were granted under the Summit Materials, Inc. 2015 Omnibus Incentive Plan (the “Omnibus Incentive Plan”). The leverage restoration options that correlate to time-vesting interests vest over four years, beginning on the Reclassification date and the leverage restoration options that correlate to performance-vesting interests vest only when both the relevant return multiple is achieved and a four year time-vesting condition is satisfied. The time-based vesting condition for both the time-vesting and performance-vesting interests will be satisfied with respect to 25% of the performance-vesting options on each of the first four anniversaries of the Reclassification date, subject to the employee’s continued employment through the applicable vesting date. The Company also granted 240,000 options to purchase shares of Class A common stock under the Omnibus Incentive Plan to certain employees some of whom had not previously been granted equity-based interests. These stock options have an exercise price of $18.00 per share, the IPO price, and are subject to a time-based vesting condition that will be satisfied with respect to 25% of the award on each of the first four anniversaries of the grant date, subject to the employee’s continued employment through the applicable vesting date.
Summit Materials, LLC
Company Information
Reorganization	2. REORGANIZATION Prior to the IPO and Reorganization, the capital structure of Summit Holdings consisted of six different classes of limited partnership interests (Class A-1, Class A-2, Class B-1, Class C, Class D-1 and Class D-2), each of which was subject to unique distribution rights. There were no outstanding Class A-2 interests. In connection with the IPO and the Reorganization, the limited partnership agreement of Summit Holdings was amended and restated to, among other things, modify its capital structure by creating the LP Units, referred to as the “Reclassification.” Immediately following the Reclassification, 69,007,297 LP Units were outstanding. In addition, in substitution for part of the economic benefit of the Class C and Class D interests that was not reflected in the conversion of such interests to LP Units, warrants were issued to holders of Class C interests to purchase an aggregate of 160,333 shares of Class A common stock, and options were issued to holders of Class D interests to purchase an aggregate of 4,358,842 shares of Class A common stock (“leverage restoration options”). The exercise price of the warrants and leverage restoration options is the IPO price of $18.00 per share. In conjunction with the Reclassification of the equity-based awards, the Company recognized a $14.5 million modification charge in general and administrative costs in the three months ended March 28, 2015. The leverage restoration options were granted under the Summit Materials, Inc. 2015 Omnibus Incentive Plan (the “Omnibus Incentive Plan”). The leverage restoration options that correlate to time-vesting interests vest over four years, beginning on the Reclassification date and the leverage restoration options that correlate to performance-vesting interests vest only when both the relevant return multiple is achieved and a four year time-vesting condition is satisfied. The time-based vesting condition for both the time-vesting and performance-vesting interests will be satisfied with respect to 25% of the performance-vesting options on each of the first four anniversaries of the Reclassification date, subject to the employee’s continued employment through the applicable vesting date. The Company also granted 240,000 options to purchase shares of Class A common stock under the Omnibus Incentive Plan to certain employees some of whom had not previously been granted equity-based interests. These stock options have an exercise price of $18.00 per share, the IPO price, and are subject to a time-based vesting condition that will be satisfied with respect to 25% of the award on each of the first four anniversaries of the grant date, subject to the employee’s continued employment through the applicable vesting date.

Intangible Assets

Intangible Assets	3 Months Ended
	Apr. 02, 2016
Goodwill	3. INTANGIBLE ASSETS The Company’s intangible assets are primarily composed of goodwill, lease agreements and reserve rights. The assets related to 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 the rights of ownership, but do not own the reserves. The intangible assets are amortized on a straight-line basis over the lives of the leases. Changes in the carrying amount of goodwill, by reportable segment, from January 2, 2016 to April 2, 2016 are summarized as follows: West East Cement Total Balance, January 2, 2016 $ $ $ $ Acquisitions(1) — Foreign currency translation adjustments — — Balance, April 2, 2016 $ $ $ $ Accumulated impairment losses as of April 2, 2016 and January 2, 2016 $ $ $ — $ (1) Includes goodwill from the East segment’s acquisitions of Boxley Materials Company (“Boxley”) and American Materials Company (“AMC”) in the three months ended April 2, 2016. Boxley is a vertically-integrated materials-based company serving Roanoke, Virginia and surrounding areas. AMC is an aggregates and ready-mixed concrete business serving the Carolinas. The purchase price allocation for the 2015 and 2016 acquisitions, primarily related to the valuation of property, plant and equipment, has not yet been finalized due to the recent timing of the acquisitions. Included in the West segment’s goodwill are certain working capital adjustments related to 2015 acquisitions. The following table shows intangible assets by type and in total: April 2, 2016 January 2, 2016 Gross Net Gross Net Carrying Accumulated Carrying Carrying Accumulated Carrying Amount Amortization Amount Amount Amortization Amount Leases $ $ $ $ $ $ Reserve rights Trade names Other Total intangible assets $ $ $ $ $ $ Amortization expense in the three months ended April 2, 2016 and March 28, 2015 was $0.4 million in each period. The estimated amortization expense for the intangible assets for each of the five years subsequent to April 2, 2016 is as follows: 2016 (nine months) $ 2017 2018 2019 2020 2021 Thereafter Total $
Summit Materials, LLC
Goodwill	3. INTANGIBLE ASSETS The Company’s intangible assets are primarily composed of goodwill, lease agreements and reserve rights. The assets related to 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 the rights of ownership, but do not own the reserves. The intangible assets are amortized on a straight-line basis over the lives of the leases. Changes in the carrying amount of goodwill, by reportable segment, from January 2, 2016 to April 2, 2016 are summarized as follows: West East Cement Total Balance, January 2, 2016 $ $ $ $ Acquisitions(1) — Foreign currency translation adjustments — — Balance, April 2, 2016 $ $ $ $ Accumulated impairment losses as of April 2, 2016 and January 2, 2016 $ $ $ — $ (1) Includes goodwill from the East segment’s acquisitions of Boxley Materials Company (“Boxley”) and American Materials Company (“AMC”) in the three months ended April 2, 2016. Boxley is a vertically integrated materials based company serving Roanoke, Virginia and surrounding areas. AMC is an aggregates and ready-mixed concrete business serving the Carolinas. The purchase price allocation for the 2015 and 2016 acquisitions, primarily related to the valuation of property, plant and equipment, has not yet been finalized due to the recent timing of the acquisitions. Included in the West segment’s goodwill are certain working capital adjustments related to 2015 acquisitions. The following table shows intangible assets by type and in total: April 2, 2016 January 2, 2016 Gross Net Gross Net Carrying Accumulated Carrying Carrying Accumulated Carrying Amount Amortization Amount Amount Amortization Amount Leases $ $ $ $ $ $ Reserve rights Trade names Other Total intangible assets $ $ $ $ $ $ Amortization expense in the three months ended April 2, 2016 and March 28, 2015 was $0.4 million in each period. The estimated amortization expense for the intangible assets for each of the five years subsequent to April 2, 2016 is as follows: 2016 (nine months) $ 2017 2018 2019 2020 2021 Thereafter Total $

Accounts Receivable, Net

Accounts Receivable, Net	3 Months Ended
	Apr. 02, 2016
Accounts Receivable, Net	4. ACCOUNTS RECEIVABLE, NET Accounts receivable, net consisted of the following as of April 2, 2016 and January 2, 2016: April 2, January 2, 2016 2016 Trade accounts receivable $ $ Retention receivables Receivables from related parties Accounts receivable Less: Allowance for doubtful accounts Accounts receivable, net $ $ 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 expected to be billed and collected within one year.
Summit Materials, LLC
Accounts Receivable, Net	4. ACCOUNTS RECEIVABLE, NET Accounts receivable, net consisted of the following as of April 2, 2016 and January 2, 2016: April 2, January 2, 2016 2016 Trade accounts receivable $ $ Retention receivables Receivables from related parties Accounts receivable Less: Allowance for doubtful accounts Accounts receivable, net $ $ 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 expected to be billed and collected within one year.

Inventories

Inventories	3 Months Ended
	Apr. 02, 2016
Inventories	5. INVENTORIES Inventories consisted of the following as of April 2, 2016 and January 2, 2016: April 2, January 2, 2016 2016 Aggregate stockpiles $ $ Finished goods Work in process Raw materials Total $ $
Summit Materials, LLC
Inventories	5. INVENTORIES Inventories consisted of the following as of April 2, 2016 and January 2, 2016: April 2, January 2, 2016 2016 Aggregate stockpiles $ $ Finished goods Work in process Raw materials Total $ $

Accrued Expenses

Accrued Expenses	3 Months Ended
	Apr. 02, 2016
Accrued Expenses	6. ACCRUED EXPENSES Accrued expenses consisted of the following as of April 2, 2016 and January 2, 2016: April 2, January 2, 2016 2016 Interest $ $ Payroll and benefits Capital lease obligations Insurance Non-income taxes Professional fees Other(1) Total $ $ (1) Consists primarily of subcontractor and working capital settlement accruals.
Summit Materials, LLC
Accrued Expenses	6. ACCRUED EXPENSES Accrued expenses consisted of the following as of April 2, 2016 and January 2, 2016: April 2, January 2, 2016 2016 Interest $ $ Payroll and benefits Capital lease obligations Insurance Non-income taxes Professional fees Other(1) Total $ $ (1) Consists primarily of subcontractor and working capital settlement accruals.

Debt

Debt	3 Months Ended
	Apr. 02, 2016
Debt	7. DEBT Debt consisted of the following as of April 2, 2016 and January 2, 2016: April 2, January 2, 2016 2016 Term Loan, due 2022: $645.1 million term loan, net of $2.9 million discount at April 2, 2016 and $646.8 million term loan, net of $3.1 million discount at January 2, 2016 $ $ 8 1 ⁄ 2 % Senior Notes, due 2022 — 6 1 ⁄ 8 % Senior Notes, due 2023: $650 million senior notes, net of $1.8 million discount at April 2, 2016 and January 2, 2016 Total Current portion of long-term debt Long-term debt $ $ The contractual payments of long-term debt, including current maturities, for the five years subsequent to April 2, 2016, are as follows: 2016 (nine months) $ 2017 2018 2019 2020 2021 Thereafter Total Less: Original issue net discount Less: Capitalized loan costs Total debt $ Senior Notes — On March 8, 2016, the Issuers issued $250.0 million of 8.500% senior notes due April 15, 2022 (the “2022 Notes”). The 2022 Notes were issued at 100.0% of their par value with proceeds of $246.3 million, net of related fees and expenses. The proceeds from the sale of the 2022 Notes were used to fund the acquisition of Boxley, replenish cash used for the acquisition of AMC and the expenses incurred in connection with these acquisitions. The 2022 Notes were issued under an indenture dated March 8, 2016 (as amended and supplemented, the “2016 Indenture”). The 2016 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, merger, sell or otherwise dispose of all or substantially all of the company’s assets, enter into certain transactions with affiliates, and designate subsidiaries as unrestricted subsidiaries. The 2016 Indenture also contains customary events of default. Interest on the 2022 Notes is payable semi-annually on April 15 and October 15 of each year commencing on October 15, 2016. In 2015, the Issuers issued $650.0 million of 6.125% senior notes due July 2023 (the "2023 Notes”). The net proceeds from the 2023 Notes, with proceeds from the refinancing of the term loan described below, were used to pay the $370.0 million initial purchase price for the Davenport Assets, to redeem $183.0 million plus $153.8 million in aggregate principal amount of the then outstanding 2020 Notes and pay related fees and expenses. Of the aggregate $650.0 million of 2023 Notes in 2015, $350.0 million were issued at par and $300.0 million were issued at 99.375% of par. The 2023 Notes were issued under an indenture dated July 8, 2015 (as amended and supplemented, the “2015 Indenture”), the terms of which are generally consistent with the 2016 Indenture. Interest on the 2023 Notes is payable semi-annually in arrears on January 15 and July 15 of each year commencing on January 15, 2016. In April, August and November 2015, using proceeds from the IPO, the refinancing of the term loan described below and the proceeds from the 2023 Notes, $288.2 million, $183.0 million and $153.8 million, respectively, aggregate principal amount of the outstanding 2020 Notes were redeemed at a price equal to par plus an applicable premium and the indenture under which the 2020 Notes were issued was satisfied and discharged. As a result of the redemptions, net charges of $56.5 million were recognized in the year ended January 2, 2016. The fees included $66.6 million for the applicable prepayment premium and $11.9 million for the write-off of deferred financing fees, partially offset by $22.0 million of net benefit from the write-off the original issuance net premium in the year ended January 2, 2016. There were no related charges recognized for the three months ended March 28, 2015 , as the first redemption was in April 2015. As of April 2, 2016 and January 2, 2016, the Company was in compliance with all covenants under the indentures that were applicable as of each date. Senior Secured Credit Facilities — Summit LLC has credit facilities that provide for term loans in an aggregate amount of $650.0 million and revolving credit commitments in an aggregate amount of $235.0 million (the “Senior Secured Credit Facilities”). Under the Senior Secured Credit Facilities, required principal repayments of 0.25% of term debt are due on the last business day of each March, June, September and December. The unpaid principal balance is due in full on the maturity date, which is July 17, 2022. On July 17, 2015, Summit LLC refinanced its term loan under the Senior Secured Credit Facilities (the “Refinancing”). The Refinancing, among other things: (i) reduced the applicable margins used to calculate interest rates for term loans under the Senior Secured Credit Facilities to 3.25% for LIBOR rate loans and 2.25% for base rate loans, subject to a LIBOR floor of 1.00% (and one 25 basis point step down upon Summit LLC achieving a certain first lien net leverage ratio); (ii) increased term loans borrowed under the term loan facility from $422.0 million to an aggregate $650.0 million; and (iii) created additional flexibility under the financial maintenance covenants, which are tested quarterly, by increasing the applicable maximum Consolidated First Lien Net Leverage Ratio (as defined in the credit agreement governing the Senior Secured Credit Facilities, the “Credit Agreement”). On March 11, 2015, Summit LLC entered into Amendment No. 3 to the Credit Agreement, which became effective on March 17, 2015 upon the consummation of the IPO. The amendment: (i) increased the size of the revolving credit facility from $150.0 million to $235.0 million; (ii) extended the maturity date of the revolving credit facility to March 11, 2020; (iii) amended certain covenants; and (iv) permits periodic tax distributions as contemplated in a tax receivable agreement, dated March 11, 2015. As a result of this amendment, $0.8 million of financing fees were recognized in the three months ended March 28, 2015. The revolving credit facility bears interest per annum equal to, at Summit LLC’s option, either (i) a base rate determined by reference to the highest of (a) the federal funds rate plus 0.50% , (b) the prime rate of Bank of America, N.A. and (c) LIBOR plus 1.00% , plus an applicable margin of 2.25% for base rate loans or (ii) a LIBOR rate determined by reference to Reuters prior to the interest period relevant to such borrowing adjusted for certain additional costs plus an applicable margin of 3.25% for LIBOR rate loans. There were no outstanding borrowings under the revolving credit facility as of April 2, 2016, leaving remaining borrowing capacity of $210.6 million, which is net of $24.4 million of outstanding letters of credit. The outstanding letters of credit are renewed annually and support required bonding on construction projects and the Company’s insurance liabilities. Summit LLC’s Consolidated First Lien Net Leverage Ratio, as such term is defined in the Senior Secured Credit Facilities, should be no greater than 4.75:1 .0 as of each quarter-end. As of April 2, 2016 and January 2, 2016, Summit LLC was in compliance with all 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. Interest expense related to debt totaled $18.3 million and $22.0 million in the three months ended April 2, 2016 and March 28, 2015, respectively. The following table presents the activity for the deferred financing fees for the three months ended April 2, 2016 and March 28, 2015: Deferred financing fees Balance—January 2, 2016 $ Loan origination fees Amortization Balance—April 2, 2016 $ Balance—December 27, 2014 $ Loan origination fees Amortization Write off of deferred financing fees Balance—March 28, 2015 $ Other —On January 15, 2015, the Company’s wholly-owned subsidiary in British Columbia, Canada entered into an agreement with HSBC 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 0.90% and (iii) $0.4 million CAD revolving credit commitment to provide guarantees on behalf of that subsidiary. There were no amounts outstanding under this agreement as of April 2, 2016 or January 2, 2016.
Summit Materials, LLC
Debt	7. DEBT Debt consisted of the following as of April 2, 2016 and January 2, 2016: April 2, January 2, 2016 2016 Term Loan, due 2022: $645.1 million term loan, net of $2.9 million discount at April 2, 2016 and $646.8 million term loan, net of $3.1 million discount at January 2, 2016 $ $ 8 1 ⁄ 2 % Senior Notes, due 2022 — 6 1 ⁄ 8 % Senior Notes, due 2023: $650 million senior notes, net of $1.8 million discount at April 2, 2016 and January 2, 2016 Total Current portion of long-term debt Long-term debt $ $ The contractual payments of long-term debt, including current maturities, for the five years subsequent to April 2, 2016, are as follows: 2016 (nine months) $ 2017 2018 2019 2020 2021 Thereafter Total Less: Original issue net discount Less: Capitalized loan costs Total debt $ Senior Notes — On March 8, 2016, the Issuers issued $250.0 million of 8.500% senior notes due April 15, 2022 (the “2022 Notes”). The 2022 Notes were issued at 100.0% of their par value with proceeds of $246.3 million, net of related fees and expenses. The proceeds from the sale of the 2022 Notes were used to fund the acquisition of Boxley, replenish cash used for the acquisition of AMC and the expenses incurred in connection with these acquisitions. The 2022 Notes were issued under an indenture dated March 8, 2016 (as amended and supplemented, the “2016 Indenture”). The 2016 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 the company’s assets, enter into certain transactions with affiliates, and designate subsidiaries as unrestricted subsidiaries. The 2016 Indenture also contains customary events of default. Interest on the 2022 Notes is payable semi-annually on April 15 and October 15 of each year commencing on October 15, 2016. In 2015, the Issuers issued $650.0 million of 6.125% senior notes due July, 2023 (the “2023 Notes”). The net proceeds from the 2023 Notes, with proceeds from the refinancing of the term loan described below, were used to pay the $370.0 million initial purchase price for the Davenport Assets, to redeem $183.0 million plus $153.8 million in aggregate principal amount of the then outstanding 2020 Notes and pay related fees and expenses. Of the aggregate $650.0 million of 2023 Notes in 2015, $350.0 million were issued at par and $300.0 million were issued at 99.375% of par. The 2023 Notes were issued under an indenture dated July 8, 2015 (as amended and supplemented, the “2015 Indenture”), the terms of which are generally consistent with the 2016 Indenture. Interest on the 2023 Notes is payable semi-annually in arrears on January 15 and July 15 of each year commencing on January 15, 2016. In April, August and November 2015, using proceeds from the IPO, the refinancing of the term loan described below and the proceeds from the 2023 Notes, $288.2 million, $183.0 million and $153.8 million, respectively, aggregate principal amount of the outstanding 2020 Notes were redeemed at a price equal to par plus an applicable premium and the indenture under which the 2020 Notes were issued was satisfied and discharged. As a result of the redemptions, net charges of $56.5 million were recognized in the year ended January 2, 2016. The fees included $66.6 million for the applicable prepayment premium and $11.9 million for the write-off of deferred financing fees, partially offset by $22.0 million of net benefit from the write-off the original issuance net premium in the year ended January 2, 2016. There were no related charges recognized for the three months ended March 28, 2015, as the first redemption was in April 2015. As of April 2, 2016 and January 2, 2016, the Company was in compliance with all covenants under the indentures applicable as of each date. Senior Secured Credit Facilities — Summit LLC has credit facilities that provide for term loans in an aggregate amount of $650.0 million and revolving credit commitments in an aggregate amount of $235.0 million (the “Senior Secured Credit Facilities”). Under the Senior Secured Credit Facilities, required principal repayments of 0.25% of term debt are due on the last business day of each March, June, September and December. The unpaid principal balance is due in full on the maturity date, which is July 17, 2022. On July 17, 2015, Summit LLC refinanced its term loan under the Senior Secured Credit Facilities (the “Refinancing”). The Refinancing, among other things: (i) reduced the applicable margins used to calculate interest rates for term loans under the Senior Secured Credit Facilities to 3.25% for LIBOR rate loans and 2.25% for base rate loans, subject to a LIBOR floor of 1.00% (and one 25 basis point step down upon Summit LLC achieving a certain first lien net leverage ratio); (ii) increased term loans borrowed under the term loan facility from $422.0 million to an aggregate $650.0 million; and (iii) created additional flexibility under the financial maintenance covenants, which are tested quarterly, by increasing the applicable maximum Consolidated First Lien Net Leverage Ratio (as defined in the credit agreement governing the Senior Secured Credit Facilities, the “Credit Agreement”). On March 11, 2015, Summit LLC entered into Amendment No. 3 to the Credit Agreement, which became effective on March 17, 2015 upon the consummation of the IPO. The amendment: (i) increased the size of the revolving credit facility from $150.0 million to $235.0 million; (ii) extended the maturity date of the revolving credit facility to March 11, 2020; (iii) amended certain covenants; and (iv) permits periodic tax distributions as contemplated in a tax receivable agreement, dated March 11, 2015. As a result of this amendment, $0.8 million of financing fees were recognized in the three months ended March 28, 2015. The revolving credit facility bears interest per annum equal to, at Summit LLC’s option, either (i) a base rate determined by reference to the highest of (a) the federal funds rate plus 0.50% , (b) the prime rate of Bank of America, N.A. and (c) LIBOR plus 1.00% , plus an applicable margin of 2.25% for base rate loans or (ii) a LIBOR rate determined by reference to Reuters prior to the interest period relevant to such borrowing adjusted for certain additional costs plus an applicable margin of 3.25% for LIBOR rate loans. There were no outstanding borrowings under the revolving credit facility as of April 2, 2016, leaving remaining borrowing capacity of $210.6 million, which is net of $24.4 million of outstanding letters of credit. The outstanding letters of credit are renewed annually and support required bonding on construction projects and the Company’s insurance liabilities. Summit LLC’s Consolidated First Lien Net Leverage Ratio, as such term is defined in the Senior Secured Credit Facilities, should be no greater than 4.75:1.0 as of each quarter-end. As of April 2, 2016 and January 2, 2016, Summit LLC was in compliance with all 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. Interest expense related to debt totaled $18.3 million and $22.0 million in the three months ended April 2, 2016 and March 28, 2015, respectively. The following table presents the activity for the deferred financing fees for the three months ended April 2, 2016 and March 28, 2015: Deferred financing fees Balance—January 2, 2016 $ Loan origination fees Amortization Balance—April 2, 2016 $ Balance—December 27, 2014 $ Loan origination fees Amortization Write off of deferred financing fees Balance—March 28, 2015 $ Other —On January 15, 2015, the Company’s wholly-owned subsidiary in British Columbia, Canada entered into an agreement with HSBC 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 0.90% and (iii) $0.4 million CAD revolving credit commitment to provide guarantees on behalf of that subsidiary. There were no amounts outstanding under this agreement as of April 2, 2016 or January 2, 2016.

Accumulated Other Comprehensive

Accumulated Other Comprehensive Loss	3 Months Ended
	Apr. 02, 2016
Accumulated Other Comprehensive Loss	8. ACCUMULATED OTHER COMPREHENSIVE LOSS The changes in each component of accumulated other comprehensive loss consisted of the following: Accumulated Foreign currency other Change in translation Cash flow hedge comprehensive retirement plans adjustments adjustments loss Balance — January 2, 2016 $ $ $ $ Foreign currency translation adjustment — — Loss on cash flow hedges — — Balance — April 2, 2016 $ $ $ $
Summit Materials, LLC
Accumulated Other Comprehensive Loss	8. ACCUMULATED OTHER COMPREHENSIVE LOSS The changes in each component of accumulated other comprehensive loss consisted of the following: Accumulated Foreign currency other Change in translation Cash flow hedge comprehensive retirement plans adjustments adjustments loss Balance — January 2, 2016 $ $ $ $ Foreign currency translation adjustment — — Loss on cash flow hedges — — Balance — April 2, 2016 $ $ $ $ Balance — December 27, 2014 $ $ $ — $ Foreign currency translation adjustment — — Balance — March 28, 2015 $ $ $ — $

Income Taxes

Income Taxes	3 Months Ended
	Apr. 02, 2016
Income Taxes	9. 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. The effective income tax rate for the C corporations differ from the statutory federal rate primarily due to (1) tax depletion expense in excess of the expense recorded under U.S. GAAP, (2) state income taxes and the effect of graduated tax rates and (3) 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. As of April 2, 2016, and January 2, 2016, Summit Inc. and its subsidiaries had not recognized any liabilities for uncertain tax positions. The Company records interest and penalties as a component of the income tax provision. No material interest or penalties were recognized in income tax expense during the three months ended April 2, 2016, or March 28, 2015.
Summit Materials, LLC
Income Taxes	9. 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 differ from the statutory federal rate primarily due to (1) tax depletion expense in excess of the expense recorded under U.S. GAAP, (2) state income taxes and the effect of graduated tax rates and (3) 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. As of April 2, 2016 and January 2, 2016, the Company has not recognized any liabilities for uncertain tax positions. The Company records interest and penalties as a component of the income tax provision. No material interest or penalties were recognized in income tax expense during the three months ended April 2, 2016 and March 28, 2015.

Net Loss Per Share

Net Loss Per Share	3 Months Ended
	Apr. 02, 2016
Net Loss Per Share
Net Loss Per Share	10. NET LOSS PER SHARE Basic loss per share is computed by dividing net loss by the weighted average common shares outstanding and diluted net loss is computed by dividing net loss, adjusted for changes in the amount 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 loss per share: Three months ended April 2, March 28, 2016 2015 Net loss attributable to Summit Inc. $ $ Weighted average shares of Class A shares outstanding Basic loss per share $ $ Excluded from the above calculation for the three months ended April 2, 2016 and March 28, 2015 were 50,261,471 and 69,007,297 LP Units, respectively, and 336,657 time-vesting restricted stock units and 130,691 market-based restricted stock units were excluded from the above calculation for the three months ended April 2, 2016 as they had no effect on loss per share. Also excluded from the calculation were 2,767,458 and 2,280,314 time-vesting stock options in the three months ended April 2, 2016 and March 28, 2015, respectively, as they were antidilutive. In addition, 160,333 warrants were excluded from the above calculation in the three months ended April 2, 2016 and March 28, 2015 as they were antidilutive.

Commitments and Contingencies

Commitments and Contingencies	3 Months Ended
	Apr. 02, 2016
Commitments and Contingencies	11. 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 pending or threatened claims and litigation will not have a material effect on the Company’s consolidated results of operations, financial position or liquidity. The Company records legal fees as incurred. Litigation and Claims —The Company is obligated under an indemnification agreement entered into with the sellers of Harper Contracting, Inc., Harper Sand and Gravel, Inc., Harper Excavating, Inc., Harper Ready Mix Company, Inc. and Harper Investments, Inc. for the sellers’ ownership interests in a joint venture agreement. The Company has the rights to any benefits under the joint venture as well as the assumption of any obligations, but does not own equity interests in the joint venture. The joint venture has incurred significant losses on a highway project in Utah, which have resulted in requests for funding from the joint venture partners and ultimately from the Company. Through April 2, 2016, the Company has funded $8.8 million, $4.0 million in 2012 and $4.8 million in 2011. In 2012 and 2011, the Company recognized losses on the indemnification agreement of $8.0 million and $1.9 million, respectively. As of April 2, 2016 and January 2, 2016, an accrual of $4.3 million was recorded in other noncurrent liabilities as management’s best estimate of future funding obligations. 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 site restoration obligations arising from regulatory and contractual requirements to perform reclamation activities at the time certain quarries and landfills are closed. As of April 2, 2016 and January 2, 2016, $19.1 million and $18.7 million, respectively, were included in other noncurrent liabilities on the consolidated balance sheets and $2.1 million and $2.0 million were included in accrued expenses for future reclamation costs. The total undiscounted anticipated costs for site reclamation as of April 2, 2016 and January 2, 2016 were $63.2 million and $56.7 million, respectively. Other —During the ordinary course of business, there may be revisions to project costs and conditions that can give rise to change orders. Revisions can also result in claims that the Company may make against the customer or a subcontractor to recover project variances that have not been satisfactorily addressed through change orders with the customer. As of April 2, 2016, there were no unapproved change orders or claims and, as of January 2, 2016, unapproved change orders and claims included in accounts receivable totaled $1.2 million. 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
Commitments and Contingencies	10. 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 pending or threatened claims and litigation will not have a material effect on the Company’s consolidated results of operations, financial position or liquidity. The Company records legal fees as incurred. Litigation and Claims —The Company is obligated under an indemnification agreement entered into with the sellers of Harper Contracting, Inc., Harper Sand and Gravel, Inc., Harper Excavating, Inc., Harper Ready Mix Company, Inc. and Harper Investments, Inc. for the sellers’ ownership interests in a joint venture agreement. The Company has the rights to any benefits under the joint venture as well as the assumption of any obligations, but does not own equity interests in the joint venture. The joint venture has incurred significant losses on a highway project in Utah, which have resulted in requests for funding from the joint venture partners and ultimately from the Company. Through April 2, 2016, the Company has funded $8.8 million, $4.0 million in 2012 and $4.8 million in 2011. In 2012 and 2011, the Company recognized losses on the indemnification agreement of $8.0 million and $1.9 million, respectively. As of April 2, 2016 and January 2, 2016, an accrual of $4.3 million was recorded in other noncurrent liabilities as management’s best estimate of future funding obligations. 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 site restoration obligations arising from regulatory and contractual requirements to perform reclamation activities at the time certain quarries and landfills are closed. As of April 2, 2016 and January 2, 2016, $19.1 million and $18.7 million, respectively, were included in other noncurrent liabilities on the consolidated balance sheets and $2.1 million and $2.0 million, respectively, were included in accrued expenses for future reclamation costs. The total undiscounted anticipated costs for site reclamation as of April 2, 2016 and January 2, 2016 were $63.2 million and $56.7 million, respectively. Other —During the ordinary course of business, there may be revisions to project costs and conditions that can give rise to change orders. Revisions can also result in claims that the Company may make against the customer or a subcontractor to recover project variances that have not been satisfactorily addressed through change orders with the customer. As of April 2, 2016 there were no unapproved change orders or claims, as of January 2, 2016, unapproved change orders and claims included in accounts receivable totaled $1.2 million. 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.

Supplemental Cash Flow Informat

Supplemental Cash Flow Information	3 Months Ended
	Apr. 02, 2016
Supplemental Cash Flow Information	12. SUPPLEMENTAL CASH FLOW INFORMATION Supplemental cash flow information is as follows: Three months ended April 2, March 28, 2016 2015 Cash payments: Interest $ $ Income taxes Non cash financing activities: Purchase of noncontrolling interest in Continental Cement $ — $
Summit Materials, LLC
Supplemental Cash Flow Information	11. SUPPLEMENTAL CASH FLOW INFORMATION Supplemental cash flow information is as follows: Three months ended April 2, March 28, 2016 2015 Cash payments: Interest $ $ Income taxes Non cash financing activities: Purchase of noncontrolling interest in Continental Cement $ — $

Segment Information

Segment Information	3 Months Ended
	Apr. 02, 2016
Segment Information	13. SEGMENT INFORMATION The Company has three operating segments: West; East; and Cement, which are its reportable segments. These segments are consistent with the Company’s management reporting structure. In the fourth quarter of 2015, the Company reorganized the operations and management reporting structure of the Cement and East segment operations, resulting in a change to its reportable business segments. The Company now conducts the cement business separate from the regional segments. As a result, the cement business is a reportable business segment. In addition, we have combined the materials-based businesses centered in Kansas and Missouri with the Kentucky-based operations, creating an expanded East segment and eliminating what was the Central region. These changes did not affect the West segment. Amounts in prior periods have been revised to reflect the current reporting structure. The operating results of each segment are regularly reviewed and evaluated by the Chief Executive Officer, the Company’s Chief Operating Decision Maker (“CODM”). The CODM primarily evaluates the performance of its segments and allocates resources to them based on a segment profit metric that we call Adjusted EBITDA, which is computed as earnings from continuing operations before interest, taxes, depreciation, depletion, amortization, accretion, share-based compensation, and transaction costs, as well as various other non-recurring, non-cash amounts. The West and East segments have several acquired 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 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 2, 2016 and January 2, 2016, and for the three months ended April 2, 2016 and March 28, 2015: Three months ended April 2, March 28, 2016 2015 Revenue: West $ $ East Cement Total revenue $ $ Three months ended April 2, March 28, 2016 2015 Adjusted EBITDA West $ $ East Cement Corporate and other Total reportable segments and corporate Interest expense Depreciation, depletion and amortization Accretion Initial public offering costs — Loss on debt financings — Acquisition transaction expenses Management fees and expenses — Non-cash compensation Other Loss from continuing operations before taxes $ $ Three months ended April 2, March 28, 2016 2015 Cash paid for capital expenditures: West $ $ East Cement Total reportable segments Corporate and other Total capital expenditures $ $ Three months ended April 2, March 28, 2016 2015 Depreciation, depletion, amortization and accretion: West $ $ East Cement Total reportable segments Corporate and other Total depreciation, depletion, amortization and accretion $ $ April 2, January 2, 2016 2016 Total assets: West $ $ East Cement Total reportable segments Corporate and other Total $ $ Three months ended April 2, March 28, 2016 2015 Revenue by product:* Aggregates $ $ Cement Ready-mixed concrete Asphalt Paving and related services Other Total revenue $ $ * Revenue by product includes intercompany and intracompany sales transferred at market value. The elimination of intracompany transactions is included in Other. Revenue from the liquid asphalt terminals is included in asphalt revenue.
Summit Materials, LLC
Segment Information	12. SEGMENT INFORMATION The Company has three operating segments: West; East; and Cement, which are its reportable segments. These segments are consistent with the Company’s management reporting structure. In the fourth quarter of 2015, the Company reorganized the operations and management reporting structure of the Cement and East segment operations, resulting in a change to its reportable business segments. The Company now conducts the cement business separate from the regional segments. As a result, the cement business is a reportable business segment. In addition, we have combined the materials-based businesses centered in Kansas and Missouri with the Kentucky-based operations, creating an expanded East segment and eliminating what was the Central region. These changes did not affect the West segment. Amounts in prior periods have been revised to reflect the current reporting structure. The operating results of each segment are regularly reviewed and evaluated by the Chief Executive Officer, the Company’s Chief Operating Decision Maker (“CODM”). The CODM primarily evaluates the performance of its segments and allocates resources to them based on a segment profit metric that we call Adjusted EBITDA, which is computed as earnings from continuing operations before interest, taxes, depreciation, depletion, amortization, accretion, share-based compensation, and transaction costs, as well as various other non-recurring, non-cash amounts. The West and East segments have several acquired 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 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 2, 2016 and January 2, 2016, and for the three months ended April 2, 2016 and March 28, 2015: Three months ended April 2, March 28, 2016 2015 Revenue: West $ $ East Cement Total revenue $ $ Three months ended April 2, March 28, 2016 2015 Adjusted EBITDA West $ $ East Cement Corporate and other Total reportable segments and corporate Interest expense Depreciation, depletion and amortization Accretion Initial public offering costs — Loss on debt financings — Acquisition transaction expenses Management fees and expenses — Non-cash compensation Other Loss from continuing operations before taxes $ $ Three months ended April 2, March 28, 2016 2015 Cash paid for capital expenditures: West $ $ East Cement Total reportable segments Corporate and other Total capital expenditures $ $ Three months ended April 2, March 28, 2016 2015 Depreciation, depletion, amortization and accretion: West $ $ East Cement Total reportable segments Corporate and other Total depreciation, depletion, amortization and accretion $ $ April 2, January 2, 2016 2016 Total assets: West $ $ East Cement Total reportable segments Corporate and other Total $ $ Three months ended April 2, March 28, 2016 2015 Revenue by product:* Aggregates $ $ Cement Ready-mixed concrete Asphalt Paving and related services Other Total revenue $ $ * Revenue by product includes intercompany and intracompany sales transferred at market value. The elimination of intracompany transactions is included in Other. Revenue from the liquid asphalt terminals is included in asphalt revenue.

Related Party Transactions

Related Party Transactions	3 Months Ended
	Apr. 02, 2016
Related Party Transactions	14. RELATED PARTY TRANSACTIONS Under the terms of a transaction and management fee agreement between Summit Holdings and Blackstone Management Partners L.L.C. (“BMP”), whose affiliates include controlling stockholders of the Company, BMP provided monitoring, advisory and consulting services to the Company through March 17, 2015. Under the terms of the agreement, BMP was permitted to assign, and had assigned, a portion of the fees to which it was entitled to Silverhawk Summit, L.P. and to certain other equity investors. The management fee was calculated based on the greater of $300,000 or 2.0% of the Company’s annual consolidated profit, as defined in the agreement, and is included in general and administrative expenses. The Company incurred management fees totaling $1.0 million during the period between December 28, 2014 and March 17, 2015. In connection with the IPO, the transaction and management fee agreement with BMP was terminated on March 17, 2015 for a final payment of $13.8 million; $13.4 million was paid to affiliates of BMP and the remaining $0.4 million was paid to affiliates of Silverhawk Summit, L.P. and to certain other equity investors. In addition to the transaction and management fees paid to BMP, the Company reimbursed BMP for direct expenses incurred, which were not material in the three months ended April 2, 2016 and March 28, 2015. Blackstone Advisory Partners L.P., an affiliate of BMP, served as an initial purchaser of $18.8 million of the 2022 Notes issued in March 2016 and $22.5 million and $26.3 million of the 2023 Notes issued in November 2015 and July 2015, respectively, and received compensation in connection therewith. In addition, Blackstone Advisory Partners L.P. served as an underwriter of 1,681,875 shares of Class A common stock issued in connection with the August 2015 follow-on offering and received compensation in connection therewith. On July 17, 2015, the Company purchased the Davenport Assets from Lafarge North America Inc. for a purchase price of $450.0 million in cash and a cement distribution terminal in Bettendorf, Iowa. At closing, $370.0 million of the purchase price was paid, and the remaining $80.0 million was paid on August 13, 2015. Summit Holdings entered into a commitment letter dated April 16, 2015, with Blackstone Capital Partners V L.P. (“BCP”) for equity financing up to $90.0 million in the form of a preferred equity interest (the “Equity Commitment Financing”), which would have been used to pay the $80.0 million deferred purchase price if other financing was not attained by December 31, 2015. For the Equity Commitment Financing, the Company paid a $1.8 million commitment fee to BCP for the year ended January 2, 2016.
Summit Materials, LLC
Related Party Transactions	13. RELATED PARTY TRANSACTIONS Under the terms of a transaction and management fee agreement between Summit Holdings and Blackstone Management Partners L.L.C. (“BMP”), whose affiliates include controlling stockholders of the Company, BMP provided monitoring, advisory and consulting services to the Company through March 17, 2015. Under the terms of the agreement, BMP was permitted to assign, and had assigned, a portion of the fees to which it was entitled to Silverhawk Summit, L.P. and to certain other equity investors. The management fee was calculated based on the greater of $300,000 or 2.0% of the Company’s annual consolidated profit, as defined in the agreement, and is included in general and administrative expenses. The Company incurred management fees totaling $1.0 million during the period between December 28, 2014 and March 17, 2015. During these periods, the Company paid immaterial amounts to Silverhawk Summit, L.P. and to other equity investors. In connection with the IPO, the transaction and management fee agreement with BMP was terminated on March 17, 2015 for a final payment of $13.8 million; $13.4 million was paid to affiliates of BMP and the remaining $0.4 million was paid to affiliates of Silverhawk Summit, L.P. and to certain other equity investors. In addition to the transaction and management fees paid to BMP, the Company reimbursed BMP for direct expenses incurred, which were not material in the three months ended April 2, 2016 and March 28, 2015. Blackstone Advisory Partners L.P., an affiliate of BMP, served as an initial purchaser of $18.8 million of the 2022 Notes issued in March 2016 and $22.5 million and $26.3 million of the 2023 Notes issued in November 2015 and July 2015, respectively, and received compensation in connection therewith. In addition, Blackstone Advisory Partners L.P. served as an underwriter of 1,681,875 shares of Class A common stock issued in connection with the August 2015 follow-on offering and received compensation in connection therewith. On July 17, 2015, the Company purchased the Davenport Assets from Lafarge North America Inc. for a purchase price of $450.0 million in cash and a cement distribution terminal in Bettendorf, Iowa. At closing, $370.0 million of the purchase price was paid, and the remaining $80.0 million was paid on August 13, 2015. Summit Holdings entered into a commitment letter dated April 16, 2015, with Blackstone Capital Partners V L.P. (“BCP”) for equity financing up to $90.0 million in the form of a preferred equity interest (the “Equity Commitment Financing”), which would have been used to pay the $80.0 million deferred purchase price if other financing was not attained by December 31, 2015. For the Equity Commitment Financing, the Company paid a $1.8 million commitment fee to BCP for the year ended January 2, 2016.

Guarantor and Non-Guarantor Fin

Guarantor and Non-Guarantor Financial Information	3 Months Ended
	Apr. 02, 2016
Summit Materials, LLC
Guarantor and Non-Guarantor Financial Information	14. GUARANTOR AND NON-GUARANTOR FINANCIAL INFORMATION Summit LLC’s domestic wholly-owned subsidiary companies other than Summit Finance Corp. are named as guarantors (collectively, the “Guarantors”) of the Senior Notes. 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 Guarantor Subsidiaries in the form of dividends or loans. Additionally, there are no significant restrictions on a Guarantor Subsidiary’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 Wholly-owned Guarantors and the Non-Guarantors. On March 17, 2015, the noncontrolling interests of Continental Cement were purchased resulting in Continental Cement being a wholly-owned indirect subsidiary of Summit LLC. Continental Cement’s results of operations and cash flows are reflected with the Guarantors for all periods presented. 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 guarantor or non-guarantor subsidiaries operated as independent entities. Condensed Consolidating Balance Sheets April 2, 2016 Non- Issuers Guarantors Guarantors Eliminations Consolidated Assets Current assets: Cash and cash equivalents $ $ $ $ $ Accounts receivable, net — Intercompany receivables — Cost and estimated earnings in excess of billings — — Inventories — — Other current assets — Total current assets Property, plant and equipment, net — Goodwill — — Intangible assets, net — — Other assets Total assets $ $ $ $ $ Liabilities and Member’s Interest Current liabilities: Current portion of debt $ $ — $ — $ — $ Current portion of acquisition-related liabilities — — Accounts payable Accrued expenses Intercompany payables — Billings in excess of costs and estimated earnings — — Total current liabilities Long-term debt — — — Acquisition-related liabilities — — — Other noncurrent liabilities Total liabilities Total member's interest Total liabilities and member’s interest $ $ $ $ $ Condensed Consolidating Balance Sheets January 2, 2016 Non- Issuers Guarantors Guarantors Eliminations Consolidated Assets Current assets: Cash and cash equivalents $ $ $ $ $ Accounts receivable, net Intercompany receivables — Cost and estimated earnings in excess of billings — — Inventories — — Other current assets — Total current assets Property, plant and equipment, net — Goodwill — — Intangible assets, net — — Other assets Total assets $ $ $ $ $ Liabilities and Member’s Interest Current liabilities: Current portion of debt $ $ — $ — $ — $ Current portion of acquisition-related liabilities — — Accounts payable Accrued expenses Intercompany payables — Billings in excess of costs and estimated earnings — — Total current liabilities Long-term debt — — — Acquisition-related liabilities — — — Other noncurrent liabilities Total liabilities Total member's interest Total liabilities and member’s interest $ $ $ $ $ Condensed Consolidating Statements of Operations For the three months ended April 2, 2016 Non- Issuers Guarantors Guarantors Eliminations Consolidated Revenue $ — $ $ $ $ Cost of revenue (excluding items shown separately below) — General and administrative expenses — Depreciation, depletion, amortization and accretion — Operating (loss) income — Other expense (income), net Interest expense — Loss from continuing operations before taxes Income tax expense — — Net loss Net loss attributable to noncontrolling interest — — — Net loss attributable to member of Summit Materials, LLC $ $ $ $ $ Comprehensive loss attributable to member of Summit Materials, LLC $ $ $ $ $ Condensed Consolidating Statements of Operations For the three months ended March 28, 2015 Non- Issuers Guarantors Guarantors Eliminations Consolidated Revenue $ — $ $ $ $ Cost of revenue (excluding items shown separately below) — General and administrative expenses — Depreciation, depletion, amortization and accretion — Operating (loss) income — Other expense, net Interest expense (Loss) income from continuing operations before taxes Income tax (benefit) expense — — (Loss) income from operations Net (loss) income Net loss attributable to noncontrolling interest — — — Net (loss) income attributable to member of Summit Materials, LLC $ $ $ $ $ Comprehensive loss attributable to member of Summit Materials, LLC $ $ $ $ $ Condensed Consolidating Statements of Cash Flows For the three months ended April 2, 2016 Non- Issuers Guarantors Guarantors Eliminations Consolidated Net cash (used in) provided by operating activities $ $ $ $ — $ Cash flow from investing activities: Acquisitions, net of cash acquired — — Purchase of property, plant and equipment — Proceeds from the sale of property, plant, and equipment — — — Net cash used for investing activities — Cash flow from financing activities: Proceeds from investment by member — — — Net proceeds from debt issuance — — — Loans received from and payments made on loans from other Summit Companies — Payments on long-term debt — — Payments on acquisition-related liabilities — — Financing costs — — — Distributions from partnership — — — Net cash (used for) provided by financing activities Impact of cash on foreign currency — — — Net decrease in cash Cash — Beginning of period Cash — End of period $ $ $ $ $ Condensed Consolidating Statements of Cash Flows For the three months ended March 28, 2015 Non- Issuers Guarantors Guarantors Eliminations Consolidated Net cash (used in) provided by operating activities $ $ $ $ $ Cash flow from investing activities: Purchase of property, plant and equipment — Proceeds from the sale of property, plant, and equipment — — Other — — — Net cash used for investing activities — Cash flow from financing activities: Proceeds from investment by member — — — Capital issuance costs — — — Net proceeds from debt issuance — — — Loans received from and payments made on loans from other Summit Companies — Payments on long-term debt — Payments on acquisition-related liabilities — — Financing costs — — — Other — — — Net cash provided by (used for) financing activities Impact of cash on foreign currency — — — Net increase (decrease) in cash Cash — Beginning of period Cash — End of period $ $ $ $ $

Subsequent Events

Subsequent Events	3 Months Ended
	Apr. 02, 2016
Subsequent Events	15. SUBSEQUENT EVENTS In April 2016, the Company acquired Sierra Ready Mix, LLC, an aggregates and ready-mixed concrete business serving the Las Vegas, Nevada market. The acquisition includes one sand and gravel pit and two ready-mixed concrete plants. * * *
Summit Materials, LLC
Subsequent Events	15. SUBSEQUENT EVENTS In April 2016, the Company acquired Sierra Ready Mix, LLC, an aggregates and ready-mixed concrete business serving the Las Vegas, Nevada market. The acquisition includes one sand and gravel pit and two ready-mixed concrete plants.

Summary of Organization and S24

Summary of Organization and Significant Accounting Policies (Policies)	3 Months Ended
	Apr. 02, 2016
Company Information
Initial Public Offering	Equity Offerings —Summit Inc. commenced operations on March 11, 2015 upon the pricing of the initial public offering of its Class A common stock (“IPO”). Summit Inc. raised $433.0 million, net of underwriting discounts, through the issuance of 25,555,555 shares of Class A common stock at a public offering price of $18.00 per share. Summit Inc. used the offering proceeds to purchase a number of newly-issued Class A Units (“LP Units”) from Summit Holdings equal to the number of shares of Class A common stock issued to the public. Summit Inc. caused Summit Holdings to use these proceeds: (i) to redeem $288.2 million in aggregate principal amount of outstanding 10 1 / 2 % senior notes due January 31, 2020 (“2020 Notes”); (ii) to purchase 71,428,571 Class B Units of Continental Cement Company, L.L.C. (“Continental Cement”); (iii) to pay a one-time termination fee of $13.8 million primarily to affiliates of the Sponsors in connection with the termination of a transaction and management fee agreement; and (iv) for general corporate purposes. The $288.2 million redemption of 2020 Notes was completed in the second quarter of 2015 at a redemption price equal to par plus an applicable premium of $38.2 million plus $5.2 million of accrued and unpaid interest.
Follow-On Offering	On August 11, 2015, Summit Inc. raised $555.8 million, net of underwriting discounts, through the issuance of 22,425,000 shares of Class A common stock at a public offering price of $25.75 per share ("follow-on offering"). Summit Inc. used these proceeds to purchase 3,750,000 newly-issued LP Units from Summit Holdings and 18,675,000 LP Units from certain of our pre-IPO owners, at a purchase price per LP Unit equal to the public offering price per share of Class A common stock, less underwriting discounts and commissions. Summit Holdings used the proceeds from the 3,750,000 newly-issued LP Units to pay the deferred purchase price of $80.0 million related to the July 17, 2015 acquisition of a cement plant and a quarry in Davenport, Iowa, and seven cement terminals along the Mississippi River (the “Davenport Assets”) and for general corporate purposes.
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. 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 January 2, 2016. The Company continues to follow the accounting policies set forth in those 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 2, 2016 and the results of operations and cash flows for the three months ended April 2, 2016 and March 28, 2015. All significant intercompany balances and transactions have been eliminated. The Company’s fiscal year is based on a 52 -53 week year with each quarter composed of 13 weeks ending on a Saturday. The 53 -week year occurs approximately once every seven years and occurred in 2015. The additional week in the 53-week year was included in the fourth quarter of 2015.
Principles of Consolidation	Principles of Consolidation —The consolidated financial statements include the accounts of Summit Inc. and its majority owned subsidiaries. As a result of the Reorganization, Summit Holdings became a variable interest entity. Summit Inc. is the primary beneficiary of Summit Holdings as a result of its 100% voting power and control over Summit Holdings and its obligation to absorb losses and its right to receive benefits of Summit Holdings and thus consolidates Summit Holdings in its consolidated financial statements with a corresponding noncontrolling interest elimination of 50.3% between January 2, 2016 and April 2, 2016 and 72.2% between March 11, 2015 and March 28, 2015. Collectively, Summit Inc.’s August 2015 follow-on offering and its December 2015 stock dividend decreased the noncontrolling interest’s economic interest from 72.2% to 50.3% . Noncontrolling interests in consolidated subsidiaries represent a 20% ownership in Ohio Valley Asphalt, LLC and, prior to the IPO and concurrent purchase of the noncontrolling interests of Continental Cement, a 30% redeemable ownership in Continental Cement. All intercompany balances and transactions have been eliminated. The Company attributes consolidated stockholders’ equity and net income separately to the controlling and noncontrolling interests. The Company accounts for investments in entities for which it has an ownership of 20% to 50% using the equity method of accounting.
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, 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. Management adjusts such estimates and assumptions when circumstances dictate. 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 22 U.S. states and in British Columbia, Canada, with the most significant revenue generated in Texas, Kansas, Utah, Missouri and Kentucky. 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 2, 2016.
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 or diluted earnings per share.
Fair Value Measurements	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 Company has entered into interest rate derivatives on $200.0 million of its term loan borrowings to add stability to interest expense and to manage its exposure to interest rate movements. The effective portion of changes in the fair value of derivatives designated and that qualify as cash flow hedges is recorded in accumulated other comprehensive loss and will be subsequently reclassified into earnings in the period that the hedged forecasted transaction affects earnings. The fair value of contingent consideration and derivatives as of April 2, 2016 and January 2, 2016 was: April 2, January 2, 2016 2016 Current portion of acquisition-related liabilities and Accrued expenses: Contingent consideration $ $ Cash flow hedges Acquisition-related liabilities and Other noncurrent liabilities Contingent consideration $ $ Cash flow hedges The fair value of contingent consideration was based on unobservable, or Level 3, inputs, including projected probability-weighted cash payments and an 11.0% 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. The fair value of the cash flow hedges are based on observable, or Level 2, inputs such as interest rates, bond yields and prices in inactive markets. There were no material valuation adjustments in the three months ended April 2, 2016 or March 28, 2015.
Financial Instruments	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 2, 2016 and January 2, 2016 was: April 2, 2016 January 2, 2016 Fair Value Carrying Value Fair Value Carrying Value Level 2 Long-term debt(1) $ $ $ $ Level 3 Current portion of deferred consideration and noncompete obligations(2) Long term portion of deferred consideration and noncompete obligations(3) (1) $6.5 million included in current portion of debt as of April 2, 2016 and January 2, 2016. Capitalized loan costs of $16.2 million and $11.7 million are excluded, respectively. (2) Included in current portion of acquisition-related liabilities on the balance sheet. (3) Included in acquisition-related liabilities on the balance sheet. 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.
Redeemable Noncontrolling Interest	Redeemable Noncontrolling Interest — On March 17, 2015, upon the consummation of the IPO and the transactions contemplated by a contribution and purchase agreement entered into with the holders of all of the outstanding Class B Units of Continental Cement, Continental Cement became a wholly-owned indirect subsidiary of Summit Inc. The noncontrolling interests of Continental Cement were acquired for aggregate consideration of $64.1 million, consisting of $35.0 million of cash, 1,029,183 shares of Summit Inc.’s Class A common stock and $15.0 million aggregate principal amount of non-interest bearing notes payable in six annual installments of $2.5 million, beginning on March 17, 2016.
New Accounting Standards	New Accounting Standards — In March 2016, the Financial Accounting Standards Board (“FASB”) issued a new accounting standard with targeted amendments to the accounting for employee share-based payments. Accounting Standards Update (“ASU”) 2016-09, Improvements to Employee Share-Based Payment Accounting , requires that the income tax effect of share-based awards be recognized in the income statement and allows entities to elect an accounting method to recognize forfeitures as they occur or to estimate forfeitures, as is currently required. The ASU is effective for public entities for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2016 and interim periods within those years. However, the Company early adopted this ASU as of the beginning of fiscal year 2016 and made an election to recognize forfeitures as they occur. The ASU adoption was applied using a modified retrospective method by means of a $1.7 million cumulative-effect adjustment to equity as of the beginning of the fiscal year. In February 2016, the FASB issued new accounting guidance to the standard of lease accounting, ASU No. 2016-02, Leases , which will result in lessees recognizing most leases on-balance sheet. Lessees are required to disclose more quantitative and qualitative information about their leases than current U.S. GAAP requires. They are also required to apply the new guidance at the beginning of the earliest period presented in the financial statements when they first apply the new standard. The new standard must be adopted by December 15, 2018. Early adoption is permitted. Management is currently assessing the effect that the adoption of this ASU will have on the consolidated financial statements. In May 2014, the FASB issued a new accounting standard to improve and converge the financial reporting requirements for revenue from contracts with customers. ASU No. 2014-09, Revenue from Contracts with Customers , prescribes a five-step model for revenue recognition that will replace most existing revenue recognition guidance in U.S. GAAP. The ASU will supersede nearly all existing revenue recognition guidance under U.S. GAAP and provides that an entity recognize revenue when it transfers promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. This update also requires additional disclosure about the nature, amount, timing and uncertainty of revenue and cash flows arising from customer contracts, including significant judgments and changes in judgments, and assets recognized from costs incurred to obtain or fulfill a contract. ASU No. 2014-09 allows for either full retrospective or modified retrospective adoption. In July 2015, the FASB postponed the effective date of the new revenue standard by one year to the first quarter of 2018. Early adoption is permitted, but no earlier than 2017. Management is currently assessing the effect that the adoption of this standard will have on the consolidated financial statements.
Reclassifications	Reclassifications — Certain amounts in the prior year have been reclassified to conform to the current period’s presentation.
Summit Materials, LLC
Company Information
Initial Public Offering	Summit Inc.’s Equity Offerings — Summit Inc. commenced operations on March 11, 2015 upon the pricing of the initial public offering of its Class A common stock (“IPO”). Summit Inc. raised $433.0 million, net of underwriting discounts, through the issuance of 25,555,555 shares of Class A common stock at a public offering price of $18.00 per share. Summit Inc. used the offering proceeds to purchase a number of newly-issued Class A Units (“LP Units”) from Summit Holdings equal to the number of shares of Class A common stock issued to the public. Summit Inc. caused Summit Holdings to use these proceeds: (i) to redeem $288.2 million in aggregate principal amount of outstanding 10 1 / 2 % senior notes due January 31, 2020 (“2020 Notes”); (ii) to purchase 71,428,571 Class B Units of Continental Cement Company, L.L.C. (“Continental Cement”); (iii) to pay a one-time termination fee of $13.8 million primarily to affiliates of the Sponsors in connection with the termination of a transaction and management fee agreement; and (iv) for general corporate purposes. The $288.2 million redemption of 2020 Notes was completed in the second quarter of 2015 at a redemption price equal to par plus an applicable premium of $38.2 million plus $5.2 million of accrued and unpaid interest.
Follow-On Offering	On August 11, 2015, Summit Inc. raised $555.8 million, net of underwriting discounts, through the issuance of 22,425,000 shares of Class A common stock at a public offering price of $25.75 per share. Summit Inc. used these proceeds to purchase 3,750,000 newly-issued LP Units from Summit Holdings and 18,675,000 LP Units from certain of our pre-IPO owners, at a purchase price per LP Unit equal to the public offering price per share of Class A common stock, less underwriting discounts and commissions. Summit Holdings used the proceeds from the 3,750,000 newly-issued LP Units to pay the deferred purchase price of $80.0 million related to the July 17, 2015 acquisition of a cement plant and a quarry in Davenport, Iowa, and seven cement terminals along the Mississippi River (the “Davenport Assets”) and for general corporate purposes.
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. 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 January 2, 2016. The Company continues to follow the accounting policies set forth in those 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 2, 2016 and the results of operations and cash flows for the three months ended April 2, 2016 and March 28, 2015. The Company’s fiscal year is based on a 52 -53 week year with each quarter composed of 13 weeks ending on a Saturday. The 53 -week year occurs approximately once every seven years and occurred in 2015. The additional week in the 53-week year was included in the fourth quarter of 2015. The consolidated financial statements include the accounts of Summit LLC and its majority owned subsidiaries. All intercompany balances and transactions have been eliminated. The Company attributes consolidated member’s interest and net income separately to the controlling and noncontrolling interests. Noncontrolling interests in consolidated subsidiaries represent a 20% ownership in Ohio Valley Asphalt, LLC and, prior to the IPO and concurrent purchase of the noncontrolling interests of Continental Cement, a 30% redeemable ownership in Continental Cement. The Company accounts for investments in entities for which it has an ownership of 20% to 50% using the equity method of accounting.
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, 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. Management adjusts such estimates and assumptions when circumstances dictate. 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 22 U.S. states and in British Columbia, Canada, with the most significant revenue generated in Texas, Kansas, Utah, Missouri and Kentucky. 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 2, 2016.
Fair Value Measurements	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 Company has entered into interest rate derivatives on $200.0 million of its term loan borrowings to add stability to interest expense and to manage its exposure to interest rate movements. The effective portion of changes in the fair value of derivatives designated and that qualify as cash flow hedges is recorded in accumulated other comprehensive loss and will be subsequently reclassified into earnings in the period that the hedged forecasted transaction affects earnings. The fair value of contingent consideration and derivatives as of April 2, 2016 and January 2, 2016 was: April 2, January 2, 2016 2016 Current portion of acquisition-related liabilities and Accrued expenses: Contingent consideration $ $ Cash flow hedges Acquisition-related liabilities and Other noncurrent liabilities Contingent consideration $ $ Cash flow hedges The fair value of contingent consideration was based on unobservable, or Level 3, inputs, including projected probability-weighted cash payments and an 11.0% 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. The fair value of the cash flow hedges are based on observable, or Level 2, inputs such as interest rates, bond yields and prices in inactive markets. There were no material valuation adjustments in the three months ended April 2, 2016 or March 28, 2015.
Financial Instruments	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 2, 2016 and January 2, 2016 was: April 2, 2016 January 2, 2016 Fair Value Carrying Value Fair Value Carrying Value Level 2 Long-term debt(1) $ $ $ $ Level 3 Current portion of deferred consideration and noncompete obligations(2) Long term portion of deferred consideration and noncompete obligations(3) (1) $6.5 million included in current portion of debt as of April 2, 2016 and January 2, 2016. Capitalized loan costs of $16.2 million and $11.7 million are excluded, respectively. (2) Included in current portion of acquisition-related liabilities on the balance sheet. (3) Included in acquisition-related liabilities on the balance sheet. 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.
Redeemable Noncontrolling Interest	Redeemable Noncontrolling Interest — On March 17, 2015, upon the consummation of the IPO and the transactions contemplated by a contribution and purchase agreement entered into with the holders of all of the outstanding Class B Units of Continental Cement, Continental Cement became a wholly-owned indirect subsidiary of Summit LLC. The noncontrolling interests of Continental Cement were acquired for aggregate consideration of $64.1 million, consisting of $35.0 million of cash, 1,029,183 shares of Summit Inc.’s Class A common stock and $15.0 million aggregate principal amount of non-interest bearing notes payable in six annual installments of $2.5 million, beginning on March 17, 2016. The notes payable is a liability of Summit Holdings and, is therefore not included in the liabilities of Summit LLC. However, Summit LLC made a $2.5 million distribution to Summit Holdings in the three months ended April 2, 2016 so that Summit Holdings could make the deferred consideration payment due in March 2016.
New Accounting Standards	New Accounting Standards — In March 2016, the Financial Accounting Standards Board (“FASB”) issued a new accounting standard with targeted amendments to the accounting for employee share-based payments. Accounting Standards Update (“ASU”) 2016-09, Improvements to Employee Share-Based Payment Accounting , requires that the income tax effect of share-based awards be recognized in the income statement and allows entities to elect an accounting method to recognize forfeitures as they occur or to estimate forfeitures, as is currently required. The ASU is effective for public entities for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2016 and interim periods within those years. However, the Company early adopted this ASU as of the beginning of fiscal year 2016 and made an election to recognize forfeitures as they occur. The ASU adoption was applied using a modified retrospective method by means of a $1.7 million cumulative-effect adjustment to equity as of the beginning of the fiscal year. In February 2016 the FASB issued new accounting guidance to the standard of lease accounting, ASU No. 2016-02, Leases , which will result in lessees recognizing most leases on balance sheet. Lessees are required to disclose more quantitative and qualitative information about their leases than current U.S. GAAP requires. They are also required to apply the new guidance at the beginning of the earliest period presented in the financial statements when they first apply the new standard. The new standard must be adopted by December 15, 2018. Early adoption is permitted. Management is currently assessing the effect that the adoption of this ASU will have on the consolidated financial statements. In May 2014 the FASB issu ed a new accounting standard to improve and converge the financial reporting requirements for revenue from contracts with customers. ASU No 2014-09, Revenue from Contracts with Customers , prescribes a five-step model for revenue recognition that will replace most existing revenue recognition guidance in U.S. GAAP. The ASU will supersede nearly all existing revenue recognition guidance under U.S. GAAP and provides that an entity recognize revenue when it transfers promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. This update also requires additional disclosure about the nature, amount, timing and uncertainty of revenue and cash flows arising from customer contracts, including significant judgments and changes in judgments, and assets recognized from costs incurred to obtain or fulfill a contract. ASU No. 2014-09 allows for either full retrospective or modified retrospective adoption. In July 2015, the FASB postponed the effective date of the new revenue standard by one year to the first quarter of 2018. Early adoption is permitted, but no earlier than 2017. Management is currently assessing the effect that the adoption of this standard will have on the consolidated financial statements.
Reclassifications	Reclassifications — Certain amounts in the prior year have been reclassified to conform to the current period’s presentation.

Summary of Organization and S25

Summary of Organization and Significant Accounting Policies (Tables)	3 Months Ended
	Apr. 02, 2016
Company Information
Schedule of Contingent Consideration and Derivatives Measured at Fair Value	April 2, January 2, 2016 2016 Current portion of acquisition-related liabilities and Accrued expenses: Contingent consideration $ $ Cash flow hedges Acquisition-related liabilities and Other noncurrent liabilities Contingent consideration $ $ Cash flow hedges
Schedule of Carrying Value and Fair Value of Financial Instruments	April 2, 2016 January 2, 2016 Fair Value Carrying Value Fair Value Carrying Value Level 2 Long-term debt(1) $ $ $ $ Level 3 Current portion of deferred consideration and noncompete obligations(2) Long term portion of deferred consideration and noncompete obligations(3) (1) $6.5 million included in current portion of debt as of April 2, 2016 and January 2, 2016. Capitalized loan costs of $16.2 million and $11.7 million are excluded, respectively. (2) Included in current portion of acquisition-related liabilities on the balance sheet. (3) Included in acquisition-related liabilities on the balance sheet.
Summit Materials, LLC
Company Information
Schedule of Contingent Consideration and Derivatives Measured at Fair Value	April 2, January 2, 2016 2016 Current portion of acquisition-related liabilities and Accrued expenses: Contingent consideration $ $ Cash flow hedges Acquisition-related liabilities and Other noncurrent liabilities Contingent consideration $ $ Cash flow hedges
Schedule of Carrying Value and Fair Value of Financial Instruments	April 2, 2016 January 2, 2016 Fair Value Carrying Value Fair Value Carrying Value Level 2 Long-term debt(1) $ $ $ $ Level 3 Current portion of deferred consideration and noncompete obligations(2) Long term portion of deferred consideration and noncompete obligations(3) (1) $6.5 million included in current portion of debt as of April 2, 2016 and January 2, 2016. Capitalized loan costs of $16.2 million and $11.7 million are excluded, respectively. (2) Included in current portion of acquisition-related liabilities on the balance sheet. (3) Included in acquisition-related liabilities on the balance sheet.

Intangible Assets (Tables)

Intangible Assets (Tables)	3 Months Ended
	Apr. 02, 2016
Goodwill by Reportable Segment and in Total	West East Cement Total Balance, January 2, 2016 $ $ $ $ Acquisitions(1) — Foreign currency translation adjustments — — Balance, April 2, 2016 $ $ $ $ Accumulated impairment losses as of April 2, 2016 and January 2, 2016 $ $ $ — $ (1) Includes goodwill from the East segment’s acquisitions of Boxley Materials Company (“Boxley”) and American Materials Company (“AMC”) in the three months ended April 2, 2016. Boxley is a vertically-integrated materials-based company serving Roanoke, Virginia and surrounding areas. AMC is an aggregates and ready-mixed concrete business serving the Carolinas. The purchase price allocation for the 2015 and 2016 acquisitions, primarily related to the valuation of property, plant and equipment, has not yet been finalized due to the recent timing of the acquisitions. Included in the West segment’s goodwill are certain working capital adjustments related to 2015 acquisitions.
Intangible Assets by Type and in Total	April 2, 2016 January 2, 2016 Gross Net Gross Net Carrying Accumulated Carrying Carrying Accumulated Carrying Amount Amortization Amount Amount Amortization Amount Leases $ $ $ $ $ $ Reserve rights Trade names Other Total intangible assets $ $ $ $ $ $
Estimated Amortization Expense for Intangible Assets	Amortization expense in the three months ended April 2, 2016 and March 28, 2015 was $0.4 million in each period. The estimated amortization expense for the intangible assets for each of the five years subsequent to April 2, 2016 is as follows: 2016 (nine months) $ 2017 2018 2019 2020 2021 Thereafter Total $
Summit Materials, LLC
Goodwill by Reportable Segment and in Total	West East Cement Total Balance, January 2, 2016 $ $ $ $ Acquisitions(1) — Foreign currency translation adjustments — — Balance, April 2, 2016 $ $ $ $ Accumulated impairment losses as of April 2, 2016 and January 2, 2016 $ $ $ — $ (1) Includes goodwill from the East segment’s acquisitions of Boxley Materials Company (“Boxley”) and American Materials Company (“AMC”) in the three months ended April 2, 2016. Boxley is a vertically integrated materials based company serving Roanoke, Virginia and surrounding areas. AMC is an aggregates and ready-mixed concrete business serving the Carolinas. The purchase price allocation for the 2015 and 2016 acquisitions, primarily related to the valuation of property, plant and equipment, has not yet been finalized due to the recent timing of the acquisitions. Included in the West segment’s goodwill are certain working capital adjustments related to 2015 acquisitions.
Intangible Assets by Type and in Total	April 2, 2016 January 2, 2016 Gross Net Gross Net Carrying Accumulated Carrying Carrying Accumulated Carrying Amount Amortization Amount Amount Amortization Amount Leases $ $ $ $ $ $ Reserve rights Trade names Other Total intangible assets $ $ $ $ $ $
Estimated Amortization Expense for Intangible Assets	Amortization expense in the three months ended April 2, 2016 and March 28, 2015 was $0.4 million in each period. The estimated amortization expense for the intangible assets for each of the five years subsequent to April 2, 2016 is as follows: 2016 (nine months) $ 2017 2018 2019 2020 2021 Thereafter Total $

Accounts Receivable, Net (Table

Accounts Receivable, Net (Tables)	3 Months Ended
	Apr. 02, 2016
Summary of Accounts Receivable, Net	April 2, January 2, 2016 2016 Trade accounts receivable $ $ Retention receivables Receivables from related parties Accounts receivable Less: Allowance for doubtful accounts Accounts receivable, net $ $
Summit Materials, LLC
Summary of Accounts Receivable, Net	April 2, January 2, 2016 2016 Trade accounts receivable $ $ Retention receivables Receivables from related parties Accounts receivable Less: Allowance for doubtful accounts Accounts receivable, net $ $

Inventories (Tables)

Inventories (Tables)	3 Months Ended
	Apr. 02, 2016
Components of Inventories	April 2, January 2, 2016 2016 Aggregate stockpiles $ $ Finished goods Work in process Raw materials Total $ $
Summit Materials, LLC
Components of Inventories	April 2, January 2, 2016 2016 Aggregate stockpiles $ $ Finished goods Work in process Raw materials Total $ $

Accrued Expenses (Tables)

Accrued Expenses (Tables)	3 Months Ended
	Apr. 02, 2016
Components of Accrued Expenses	April 2, January 2, 2016 2016 Interest $ $ Payroll and benefits Capital lease obligations Insurance Non-income taxes Professional fees Other(1) Total $ $ Consists primarily of subcontractor and working capital settlement accruals.
Summit Materials, LLC
Components of Accrued Expenses	April 2, January 2, 2016 2016 Interest $ $ Payroll and benefits Capital lease obligations Insurance Non-income taxes Professional fees Other(1) Total $ $ (1) Consists primarily of subcontractor and working capital settlement accruals.

Debt (Tables)

Debt (Tables)	3 Months Ended
	Apr. 02, 2016
Schedule of Debt	April 2, January 2, 2016 2016 Term Loan, due 2022: $645.1 million term loan, net of $2.9 million discount at April 2, 2016 and $646.8 million term loan, net of $3.1 million discount at January 2, 2016 $ $ 8 1 ⁄ 2 % Senior Notes, due 2022 — 6 1 ⁄ 8 % Senior Notes, due 2023: $650 million senior notes, net of $1.8 million discount at April 2, 2016 and January 2, 2016 Total Current portion of long-term debt Long-term debt $ $
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 2, 2016, are as follows: 2016 (nine months) $ 2017 2018 2019 2020 2021 Thereafter Total Less: Original issue net discount Less: Capitalized loan costs Total debt $
Summary of Activity for Deferred Financing Fees	Deferred financing fees Balance—January 2, 2016 $ Loan origination fees Amortization Balance—April 2, 2016 $ Balance—December 27, 2014 $ Loan origination fees Amortization Write off of deferred financing fees Balance—March 28, 2015 $
Summit Materials, LLC
Schedule of Debt	April 2, January 2, 2016 2016 Term Loan, due 2022: $645.1 million term loan, net of $2.9 million discount at April 2, 2016 and $646.8 million term loan, net of $3.1 million discount at January 2, 2016 $ $ 8 1 ⁄ 2 % Senior Notes, due 2022 — 6 1 ⁄ 8 % Senior Notes, due 2023: $650 million senior notes, net of $1.8 million discount at April 2, 2016 and January 2, 2016 Total Current portion of long-term debt Long-term debt $ $
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 2, 2016, are as follows: 2016 (nine months) $ 2017 2018 2019 2020 2021 Thereafter Total Less: Original issue net discount Less: Capitalized loan costs Total debt $
Summary of Activity for Deferred Financing Fees	Deferred financing fees Balance—January 2, 2016 $ Loan origination fees Amortization Balance—April 2, 2016 $ Balance—December 27, 2014 $ Loan origination fees Amortization Write off of deferred financing fees Balance—March 28, 2015 $

Accumulated Other Comprehensi31

Accumulated Other Comprehensive Loss (Tables)	3 Months Ended
	Apr. 02, 2016
Accumulated Other Comprehensive Loss	Accumulated Foreign currency other Change in translation Cash flow hedge comprehensive retirement plans adjustments adjustments loss Balance — January 2, 2016 $ $ $ $ Foreign currency translation adjustment — — Loss on cash flow hedges — — Balance — April 2, 2016 $ $ $ $
Summit Materials, LLC
Accumulated Other Comprehensive Loss	Accumulated Foreign currency other Change in translation Cash flow hedge comprehensive retirement plans adjustments adjustments loss Balance — January 2, 2016 $ $ $ $ Foreign currency translation adjustment — — Loss on cash flow hedges — — Balance — April 2, 2016 $ $ $ $ Balance — December 27, 2014 $ $ $ — $ Foreign currency translation adjustment — — Balance — March 28, 2015 $ $ $ — $

Net Loss Per Share (Tables)

Net Loss Per Share (Tables)	3 Months Ended
	Apr. 02, 2016
Net Loss Per Share
Schedule of Basic Loss Per Share	Three months ended April 2, March 28, 2016 2015 Net loss attributable to Summit Inc. $ $ Weighted average shares of Class A shares outstanding Basic loss per share $ $

Supplemental Cash Flow Inform33

Supplemental Cash Flow Information (Tables)	3 Months Ended
	Apr. 02, 2016
Schedule of Supplemental Cash Flow Information	Three months ended April 2, March 28, 2016 2015 Cash payments: Interest $ $ Income taxes Non cash financing activities: Purchase of noncontrolling interest in Continental Cement $ — $
Summit Materials, LLC
Schedule of Supplemental Cash Flow Information	Three months ended April 2, March 28, 2016 2015 Cash payments: Interest $ $ Income taxes Non cash financing activities: Purchase of noncontrolling interest in Continental Cement $ — $

Segment Information (Tables)

Segment Information (Tables)	3 Months Ended
	Apr. 02, 2016
Summary of Financial Data for Company's Reportable Business Segments	Three months ended April 2, March 28, 2016 2015 Revenue: West $ $ East Cement Total revenue $ $ Three months ended April 2, March 28, 2016 2015 Adjusted EBITDA West $ $ East Cement Corporate and other Total reportable segments and corporate Interest expense Depreciation, depletion and amortization Accretion Initial public offering costs — Loss on debt financings — Acquisition transaction expenses Management fees and expenses — Non-cash compensation Other Loss from continuing operations before taxes $ $ Three months ended April 2, March 28, 2016 2015 Cash paid for capital expenditures: West $ $ East Cement Total reportable segments Corporate and other Total capital expenditures $ $ Three months ended April 2, March 28, 2016 2015 Depreciation, depletion, amortization and accretion: West $ $ East Cement Total reportable segments Corporate and other Total depreciation, depletion, amortization and accretion $ $ April 2, January 2, 2016 2016 Total assets: West $ $ East Cement Total reportable segments Corporate and other Total $ $ Three months ended April 2, March 28, 2016 2015 Revenue by product:* Aggregates $ $ Cement Ready-mixed concrete Asphalt Paving and related services Other Total revenue $ $ * Revenue by product includes intercompany and intracompany sales transferred at market value. The elimination of intracompany transactions is included in Other. Revenue from the liquid asphalt terminals is included in asphalt revenue.
Summit Materials, LLC
Summary of Financial Data for Company's Reportable Business Segments	Three months ended April 2, March 28, 2016 2015 Revenue: West $ $ East Cement Total revenue $ $ Three months ended April 2, March 28, 2016 2015 Adjusted EBITDA West $ $ East Cement Corporate and other Total reportable segments and corporate Interest expense Depreciation, depletion and amortization Accretion Initial public offering costs — Loss on debt financings — Acquisition transaction expenses Management fees and expenses — Non-cash compensation Other Loss from continuing operations before taxes $ $ Three months ended April 2, March 28, 2016 2015 Cash paid for capital expenditures: West $ $ East Cement Total reportable segments Corporate and other Total capital expenditures $ $ Three months ended April 2, March 28, 2016 2015 Depreciation, depletion, amortization and accretion: West $ $ East Cement Total reportable segments Corporate and other Total depreciation, depletion, amortization and accretion $ $ April 2, January 2, 2016 2016 Total assets: West $ $ East Cement Total reportable segments Corporate and other Total $ $ Three months ended April 2, March 28, 2016 2015 Revenue by product:* Aggregates $ $ Cement Ready-mixed concrete Asphalt Paving and related services Other Total revenue $ $ * Revenue by product includes intercompany and intracompany sales transferred at market value. The elimination of intracompany transactions is included in Other. Revenue from the liquid asphalt terminals is included in asphalt revenue.

Guarantor and Non-Guarantor F35

Guarantor and Non-Guarantor Financial Information (Tables) - Summit Materials, LLC	3 Months Ended
	Apr. 02, 2016
Condensed Consolidating Balance Sheets	Condensed Consolidating Balance Sheets April 2, 2016 Non- Issuers Guarantors Guarantors Eliminations Consolidated Assets Current assets: Cash and cash equivalents $ $ $ $ $ Accounts receivable, net — Intercompany receivables — Cost and estimated earnings in excess of billings — — Inventories — — Other current assets — Total current assets Property, plant and equipment, net — Goodwill — — Intangible assets, net — — Other assets Total assets $ $ $ $ $ Liabilities and Member’s Interest Current liabilities: Current portion of debt $ $ — $ — $ — $ Current portion of acquisition-related liabilities — — Accounts payable Accrued expenses Intercompany payables — Billings in excess of costs and estimated earnings — — Total current liabilities Long-term debt — — — Acquisition-related liabilities — — — Other noncurrent liabilities Total liabilities Total member's interest Total liabilities and member’s interest $ $ $ $ $ Condensed Consolidating Balance Sheets January 2, 2016 Non- Issuers Guarantors Guarantors Eliminations Consolidated Assets Current assets: Cash and cash equivalents $ $ $ $ $ Accounts receivable, net Intercompany receivables — Cost and estimated earnings in excess of billings — — Inventories — — Other current assets — Total current assets Property, plant and equipment, net — Goodwill — — Intangible assets, net — — Other assets Total assets $ $ $ $ $ Liabilities and Member’s Interest Current liabilities: Current portion of debt $ $ — $ — $ — $ Current portion of acquisition-related liabilities — — Accounts payable Accrued expenses Intercompany payables — Billings in excess of costs and estimated earnings — — Total current liabilities Long-term debt — — — Acquisition-related liabilities — — — Other noncurrent liabilities Total liabilities Total member's interest Total liabilities and member’s interest $ $ $ $ $
Condensed Consolidating Statements of Operations	Condensed Consolidating Statements of Operations For the three months ended April 2, 2016 Non- Issuers Guarantors Guarantors Eliminations Consolidated Revenue $ — $ $ $ $ Cost of revenue (excluding items shown separately below) — General and administrative expenses — Depreciation, depletion, amortization and accretion — Operating (loss) income — Other expense (income), net Interest expense — Loss from continuing operations before taxes Income tax expense — — Net loss Net loss attributable to noncontrolling interest — — — Net loss attributable to member of Summit Materials, LLC $ $ $ $ $ Comprehensive loss attributable to member of Summit Materials, LLC $ $ $ $ $ Condensed Consolidating Statements of Operations For the three months ended March 28, 2015 Non- Issuers Guarantors Guarantors Eliminations Consolidated Revenue $ — $ $ $ $ Cost of revenue (excluding items shown separately below) — General and administrative expenses — Depreciation, depletion, amortization and accretion — Operating (loss) income — Other expense, net Interest expense (Loss) income from continuing operations before taxes Income tax (benefit) expense — — (Loss) income from operations Net (loss) income Net loss attributable to noncontrolling interest — — — Net (loss) income attributable to member of Summit Materials, LLC $ $ $ $ $ Comprehensive loss attributable to member of Summit Materials, LLC $ $ $ $ $
Condensed Consolidating Statements of Cash Flows	Condensed Consolidating Statements of Cash Flows For the three months ended April 2, 2016 Non- Issuers Guarantors Guarantors Eliminations Consolidated Net cash (used in) provided by operating activities $ $ $ $ — $ Cash flow from investing activities: Acquisitions, net of cash acquired — — Purchase of property, plant and equipment — Proceeds from the sale of property, plant, and equipment — — — Net cash used for investing activities — Cash flow from financing activities: Proceeds from investment by member — — — Net proceeds from debt issuance — — — Loans received from and payments made on loans from other Summit Companies — Payments on long-term debt — — Payments on acquisition-related liabilities — — Financing costs — — — Distributions from partnership — — — Net cash (used for) provided by financing activities Impact of cash on foreign currency — — — Net decrease in cash Cash — Beginning of period Cash — End of period $ $ $ $ $ Condensed Consolidating Statements of Cash Flows For the three months ended March 28, 2015 Non- Issuers Guarantors Guarantors Eliminations Consolidated Net cash (used in) provided by operating activities $ $ $ $ $ Cash flow from investing activities: Purchase of property, plant and equipment — Proceeds from the sale of property, plant, and equipment — — Other — — — Net cash used for investing activities — Cash flow from financing activities: Proceeds from investment by member — — — Capital issuance costs — — — Net proceeds from debt issuance — — — Loans received from and payments made on loans from other Summit Companies — Payments on long-term debt — Payments on acquisition-related liabilities — — Financing costs — — — Other — — — Net cash provided by (used for) financing activities Impact of cash on foreign currency — — — Net increase (decrease) in cash Cash — Beginning of period Cash — End of period $ $ $ $ $

Summary of Organization and S36

Summary of Organization and Significant Accounting Policies - General Information and Equity Offerings (Details) $ / shares in Units, $ in Thousands

Aug. 13, 2015USD ($)facility

Aug. 11, 2015USD ($)$ / sharesshares

Jul. 17, 2015USD ($)

Mar. 17, 2015USD ($)shares

Mar. 11, 2015USD ($)$ / sharesshares

Aug. 13, 2015USD ($)

Apr. 25, 2015USD ($)

Apr. 02, 2016segmentfacility

Mar. 28, 2015USD ($)

Jan. 02, 2016

Dec. 28, 2015

Nov. 28, 2015USD ($)

Aug. 22, 2015USD ($)

Aug. 10, 2015

Apr. 30, 2015USD ($)

Mar. 10, 2015

Summary Of Significant Accounting Policies And Recent Accounting Pronouncements

Number of operating segments | segment

3

Length of fiscal quarter

91 days

Interval period for 53 week fiscal year

7 years

Equity Offering

Proceeds from sale of common stock, net of underwriting discounts

$ 460,000

Minimum

Summary Of Significant Accounting Policies And Recent Accounting Pronouncements

Length of fiscal year

364 days

Maximum

Summary Of Significant Accounting Policies And Recent Accounting Pronouncements

Length of fiscal year

371 days

Cement plant

Summary Of Significant Accounting Policies And Recent Accounting Pronouncements

Number of plants | facility

2

Continental Cement

Principles of Consolidation

Noncontrolling interest elimination (as a percent)

30.00%

Ohio Valley Asphalt

Principles of Consolidation

Noncontrolling interest elimination (as a percent)

20.00%

Davenport Assets

Equity Offering

Net cash paid for acquisitions

$ 80,000

$ 370,000

$ 450,000

Summit Materials, LLC

Summary Of Significant Accounting Policies And Recent Accounting Pronouncements

Number of operating segments | segment

3

Length of fiscal quarter

91 days

Interval period for 53 week fiscal year

7 years

Summit Materials, LLC | Minimum

Summary Of Significant Accounting Policies And Recent Accounting Pronouncements

Length of fiscal year

364 days

Summit Materials, LLC | Maximum

Summary Of Significant Accounting Policies And Recent Accounting Pronouncements

Length of fiscal year

371 days

Summit Materials, LLC | Cement plant

Summary Of Significant Accounting Policies And Recent Accounting Pronouncements

Number of plants | facility

2

Summit Materials, LLC | Continental Cement

Principles of Consolidation

Noncontrolling interest elimination (as a percent)

30.00%

Summit Materials, LLC | Ohio Valley Asphalt

Principles of Consolidation

Noncontrolling interest elimination (as a percent)

20.00%

Summit Materials, LLC | Davenport Assets

Equity Offering

Net cash paid for acquisitions

80,000

$ 370,000

$ 450,000

Summit Holdings LP

Principles of Consolidation

Voting power (as a percent)

100.00%

Noncontrolling interest elimination (as a percent)

72.20%

72.20%

50.30%

50.30%

72.20%

10 1/2% Senior Notes, due 2020

Equity Offering

Senior notes, aggregate principal amount redeemed

$ 288,200

$ 153,800

$ 183,000

10 1/2% Senior Notes, due 2020 | Summit Materials, LLC

Equity Offering

Senior notes, aggregate principal amount redeemed

288,200

$ 153,800

$ 183,000

IPO

Equity Offering

Proceeds from sale of common stock, net of underwriting discounts

$ 433,000

IPO | Continental Cement

Equity Offering

Class B units purchased (in shares) | shares

71,428,571

IPO | Affiliates of the Sponsors Blackstone Management Partners and Silverhawk Summit | Termination fee paid to related parties

Equity Offering

Related party expense

$ 13,800

IPO | Affiliates of the Sponsors Blackstone Management Partners and Silverhawk Summit | Summit Materials, LLC | Termination fee paid to related parties

Equity Offering

Related party expense

$ 13,800

IPO | Common Class A

Equity Offering

Common stock issued (in shares) | shares

25,555,555

Offering price (in dollars per share) | $ / shares

$ 18

IPO | 10 1/2% Senior Notes, due 2020

Equity Offering

Senior notes, aggregate principal amount redeemed

$ 288,200

Senior notes, interest rate (as a percent)

10.50%

Debt Instrument, redemption premium

38,200

Accrued and unpaid interest

$ 5,200

Follow on Public Offering | Summit Holdings LP

Equity Offering

Number of Summit LP units purchased by Company, newly issued units (in shares) | shares

3,750,000

Number of Summit LP units purchased by Company, from previous holders (in shares) | shares

18,675,000

Follow on Public Offering | Davenport Assets

Equity Offering

Net cash paid for acquisitions

$ 80,000

Follow on Public Offering | Davenport Assets | Cement terminal

Summary Of Significant Accounting Policies And Recent Accounting Pronouncements

Number of plants | facility

7

Follow on Public Offering | Common Class A

Equity Offering

Proceeds from sale of common stock, net of underwriting discounts

$ 555,800

Common stock issued (in shares) | shares

22,425,000

Offering price (in dollars per share) | $ / shares

$ 25.75

Summary of Organization and S37

Summary of Organization and Significant Accounting Policies - Business and Credit Concentration (Details)	3 Months Ended
	Apr. 02, 2016state
Business and Credit Concentrations
Number of states in which the entity operates	22
Sales | Maximum | Customer Concentration Risk
Business and Credit Concentrations
Customer accounted revenue (as a percent)	10.00%
Summit Materials, LLC
Business and Credit Concentrations
Number of states in which the entity operates	22
Summit Materials, LLC | Sales | Maximum | Customer Concentration Risk
Business and Credit Concentrations
Customer accounted revenue (as a percent)	10.00%

Summary of Organization and S38

Summary of Organization and Significant Accounting Policies - Fair Value Measurements (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Apr. 02, 2016	Jan. 02, 2016
Level 3
Fair Value Measurements
Current portion of acquisition-related liabilities and Accrued expenses - Contingent consideration	$ 5,057	$ 4,918
Acquisition-related liabilities and Other noncurrent liabilities - Contingent consideration	$ 1,844	$ 2,475
Discount rate	11.00%	11.00%
Cash flow hedges | Interest rate derivatives | Level 2
Fair Value Measurements
Current portion of acquisition-related liabilities and Accrued expenses - Cash flow hedge	$ 457	$ 224
Acquisition-related liabilities and Other noncurrent liabilities - Cash flow hedge	2,654	681
Cash flow hedges | Interest rate derivatives | Term Loan, due 2022
Fair Value Measurements
Term loan borrowings hedged by derivatives	200,000	200,000
Summit Materials, LLC | Level 3
Fair Value Measurements
Current portion of acquisition-related liabilities and Accrued expenses - Contingent consideration	5,057	4,918
Acquisition-related liabilities and Other noncurrent liabilities - Contingent consideration	$ 1,844	$ 2,475
Discount rate	11.00%	11.00%
Summit Materials, LLC | Cash flow hedges | Interest rate derivatives | Level 2
Fair Value Measurements
Current portion of acquisition-related liabilities and Accrued expenses - Cash flow hedge	$ 457	$ 224
Acquisition-related liabilities and Other noncurrent liabilities - Cash flow hedge	2,654	681
Summit Materials, LLC | Cash flow hedges | Interest rate derivatives | Term Loan, due 2022
Fair Value Measurements
Term loan borrowings hedged by derivatives	$ 200,000	$ 200,000

Summary of Organization and S39

Summary of Organization and Significant Accounting Policies - Carrying Value and Fair Value of Financial Instruments (Details) - USD ($) $ in Thousands	Apr. 02, 2016	Jan. 02, 2016
Financial Instruments
Current portion of debt	$ 6,500	$ 6,500
Summit Materials, LLC
Financial Instruments
Current portion of debt	6,500	6,500
Level 2
Financial Instruments
Current portion of debt	6,500	6,500
Capitalized loan costs excluded	16,200	11,700
Level 2 | Fair Value
Financial Instruments
Long-term debt	1,517,706	1,283,799
Level 2 | Carrying Value
Financial Instruments
Long-term debt	1,540,410	1,291,858
Level 2 | Summit Materials, LLC
Financial Instruments
Capitalized loan costs excluded	16,200	11,700
Level 2 | Summit Materials, LLC | Fair Value
Financial Instruments
Long-term debt	1,517,706	1,283,799
Level 2 | Summit Materials, LLC | Carrying Value
Financial Instruments
Long-term debt	1,540,410	1,291,858
Level 3 | Fair Value
Financial Instruments
Current portion of deferred consideration and noncompete obligations	12,740	15,666
Long term portion of deferred consideration and noncompete obligations	30,331	37,502
Level 3 | Carrying Value
Financial Instruments
Current portion of deferred consideration and noncompete obligations	12,740	15,666
Long term portion of deferred consideration and noncompete obligations	30,331	37,502
Level 3 | Summit Materials, LLC | Fair Value
Financial Instruments
Current portion of deferred consideration and noncompete obligations	10,240	13,166
Long term portion of deferred consideration and noncompete obligations	23,592	28,553
Level 3 | Summit Materials, LLC | Carrying Value
Financial Instruments
Current portion of deferred consideration and noncompete obligations	10,240	13,166
Long term portion of deferred consideration and noncompete obligations	$ 23,592	$ 28,553

Summary of Organization and S40

Summary of Organization and Significant Accounting Policies - Redeemable Noncontrolling Interest (Details) $ in Thousands	3 Months Ended		12 Months Ended
	Apr. 02, 2016USD ($)	Mar. 28, 2015USD ($)	Jan. 02, 2016USD ($)installmentshares
Redeemable Noncontrolling Interest
Cash consideration		$ 35,000
Continental Cement
Redeemable Noncontrolling Interest
Aggregate consideration for acquiring noncontrolling interests			$ 64,100
Cash consideration			35,000
Consideration, Principal amount of note issued			$ 15,000
Continental Cement | Common Class A
Redeemable Noncontrolling Interest
Consideration, shares issued | shares			1,029,183
Continental Cement | Non interest bearing notes payable
Redeemable Noncontrolling Interest
Number of annual installments | installment			6
Annual installments amount of non-interest bearing notes payable			$ 2,500
Summit Materials, LLC
Redeemable Noncontrolling Interest
Payments of Distributions to Affiliates	$ 2,500
Summit Materials, LLC | Continental Cement
Redeemable Noncontrolling Interest
Aggregate consideration for acquiring noncontrolling interests			64,100
Cash consideration			$ 35,000
Summit Materials, LLC | Continental Cement | Common Class A
Redeemable Noncontrolling Interest
Consideration, shares issued | shares			1,029,183
Summit Materials, LLC | Continental Cement | Non interest bearing notes payable
Redeemable Noncontrolling Interest
Consideration, Principal amount of note issued			$ 15,000
Number of annual installments | installment			6
Annual installments amount of non-interest bearing notes payable			$ 2,500

Summary of Organization and S41

Summary of Organization and Significant Accounting Policies - New Accounting Standards (Details) - Accounting Standards Update 2016-09 - Adjustments for New Accounting Principle, Early Adoption $ in Millions	Jan. 03, 2016USD ($)
New Accounting Standards
Cumulative effect adjustment	$ 1.7
Summit Materials, LLC
New Accounting Standards
Cumulative effect adjustment	$ 1.7

Reorganization - Warrants and O

Reorganization - Warrants and Options (Details) $ / shares in Units, $ in Millions	Mar. 11, 2015USD ($)shares	Apr. 02, 2016item$ / sharesshares	Mar. 10, 2015itemshares
Leverage restoration options, time-vesting
Reorganization
Stock units vesting period		4 years
Percentage of options vesting on each anniversary		25.00%
Number of anniversaries over which options vest (in tranches) | item		4
Leverage restoration options, performance-vesting
Reorganization
Stock units vesting period		4 years
Percentage of options vesting on each anniversary		25.00%
Number of anniversaries over which options vest (in tranches) | item		4
Common Class A
Reorganization
Stock option exercise price (in dollars per share) | $ / shares		$ 18
Common Class A | Warrants issued to holders of Class C interests
Reorganization
Number of warrants (in shares)	160,333
Exercise price per share under the Omnibus Incentive Plan (in dollars per share) | $ / shares		18
Common Class A | Leverage restoration options issued to holders of Class D interests
Reorganization
Exercise price per share under the Omnibus Incentive Plan (in dollars per share) | $ / shares		$ 18
General and administrative expenses
Reorganization
Modification charge recognized in general and administrative costs | $	$ 14.5
2015 Omnibus Equity Incentive Plan | Common Class A
Reorganization
Awards granted		240,000
2015 Omnibus Equity Incentive Plan | Common Class A | Leverage restoration options issued to holders of Class D interests
Reorganization
Number of warrants (in shares)	4,358,842
Stock options
Reorganization
Percentage of options vesting on each anniversary		25.00%
Number of anniversaries over which options vest (in tranches) | item		4
Summit Materials, LLC | General and administrative expenses
Reorganization
Modification charge recognized in general and administrative costs | $	$ 14.5
Summit Holdings LP
Reorganization
Number of classes of limited partnership interests | item			6
Number of LP Units outstanding	69,007,297
Summit Holdings LP | Common Class A
Reorganization
Outstanding interests (in shares)			0

Intangible Assets - Goodwill (D

Intangible Assets - Goodwill (Details) $ in Thousands	3 Months Ended
	Apr. 02, 2016USD ($)
Goodwill [Roll Forward]
Beginning balance	$ 596,397
Acquisitions	136,498
Foreign currency translation adjustments	2,851
Ending balance	735,746
Accumulated impairment losses	(68,202)
Summit Materials, LLC
Goodwill [Roll Forward]
Beginning balance	596,397
Acquisitions	136,498
Foreign currency translation adjustments	2,851
Ending balance	735,746
Accumulated impairment losses	(68,202)
West
Goodwill [Roll Forward]
Beginning balance	303,926
Acquisitions	1,724
Foreign currency translation adjustments	2,851
Ending balance	308,501
Accumulated impairment losses	(53,264)
West | Summit Materials, LLC
Goodwill [Roll Forward]
Beginning balance	303,926
Acquisitions	1,724
Foreign currency translation adjustments	2,851
Ending balance	308,501
Accumulated impairment losses	(53,264)
East
Goodwill [Roll Forward]
Beginning balance	98,308
Acquisitions	134,774
Ending balance	233,082
Accumulated impairment losses	(14,938)
East | Summit Materials, LLC
Goodwill [Roll Forward]
Beginning balance	98,308
Acquisitions	134,774
Ending balance	233,082
Accumulated impairment losses	(14,938)
Cement
Goodwill [Roll Forward]
Beginning balance	194,163
Ending balance	194,163
Cement | Summit Materials, LLC
Goodwill [Roll Forward]
Beginning balance	194,163
Ending balance	$ 194,163

Intangible Assets - By Type (De

Intangible Assets - By Type (Details) - USD ($) $ in Thousands	Apr. 02, 2016	Jan. 02, 2016
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 20,392	$ 20,242
Accumulated Amortization	(5,871)	(5,237)
Net Carrying Amount	14,521	15,005
Summit Materials, LLC
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	20,392	20,242
Accumulated Amortization	(5,871)	(5,237)
Net Carrying Amount	14,521	15,005
Leases
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	10,357	10,357
Accumulated Amortization	(2,656)	(2,531)
Net Carrying Amount	7,701	7,826
Leases | Summit Materials, LLC
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	10,357	10,357
Accumulated Amortization	(2,656)	(2,531)
Net Carrying Amount	7,701	7,826
Reserve Rights
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	8,786	8,636
Accumulated Amortization	(2,555)	(2,078)
Net Carrying Amount	6,231	6,558
Reserve Rights | Summit Materials, LLC
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	8,786	8,636
Accumulated Amortization	(2,555)	(2,078)
Net Carrying Amount	6,231	6,558
Trade Names
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	1,000	1,000
Accumulated Amortization	(583)	(558)
Net Carrying Amount	417	442
Trade Names | Summit Materials, LLC
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	1,000	1,000
Accumulated Amortization	(583)	(558)
Net Carrying Amount	417	442
Other
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	249	249
Accumulated Amortization	(77)	(70)
Net Carrying Amount	172	179
Other | Summit Materials, LLC
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	249	249
Accumulated Amortization	(77)	(70)
Net Carrying Amount	$ 172	$ 179

Intangible Assets - Amortizatio

Intangible Assets - Amortization Expense (Details) - USD ($) $ in Thousands	3 Months Ended
	Apr. 02, 2016	Mar. 28, 2015	Jan. 02, 2016
Estimated amortization expense
2016 (nine months)	$ 1,690
2,017	959
2,018	959
2,019	959
2,020	901
2,021	859
Thereafter	8,194
Total	14,521		$ 15,005
Amortization expense	400	$ 400
Summit Materials, LLC
Estimated amortization expense
2016 (nine months)	1,690
2,017	959
2,018	959
2,019	959
2,020	901
2,021	859
Thereafter	8,194
Total	14,521		$ 15,005
Amortization expense	$ 400	$ 400

Accounts Receivable, Net - Summ

Accounts Receivable, Net - Summary of Accounts Receivable, Net (Details) - USD ($) $ in Thousands	Apr. 02, 2016	Jan. 02, 2016
Accounts, Notes, Loans and Financing Receivable [Line Items]
Trade accounts receivable	$ 124,444	$ 133,418
Retention receivables	9,356	13,217
Receivables from related parties	704	635
Accounts receivable	134,504	147,270
Less: Allowance for doubtful accounts	(1,991)	(1,726)
Accounts receivable, net	132,513	145,544
Summit Materials, LLC
Accounts, Notes, Loans and Financing Receivable [Line Items]
Trade accounts receivable	124,444	133,418
Retention receivables	9,356	13,217
Receivables from related parties	704	635
Accounts receivable	134,504	147,270
Less: Allowance for doubtful accounts	(1,991)	(1,726)
Accounts receivable, net	$ 132,513	$ 145,544

Inventories - Components of Inv

Inventories - Components of Inventories (Details) - USD ($) $ in Thousands	Apr. 02, 2016	Jan. 02, 2016
Inventories
Aggregate stockpiles	$ 102,167	$ 86,236
Finished goods	46,751	14,840
Work in process	5,667	5,141
Raw materials	17,406	23,865
Total	171,991	130,082
Summit Materials, LLC
Inventories
Aggregate stockpiles	102,167	86,236
Finished goods	46,751	14,840
Work in process	5,667	5,141
Raw materials	17,406	23,865
Total	$ 171,991	$ 130,082

Accrued Expenses - Components o

Accrued Expenses - Components of Accrued Expenses (Details) - USD ($) $ in Thousands	Apr. 02, 2016	Jan. 02, 2016
Schedule Of Accrued Expenses [Line Items]
Interest	$ 10,318	$ 19,591
Payroll and benefits	17,606	24,714
Capital lease obligations	12,509	15,263
Insurance	9,163	9,824
Non-income taxes	6,017	4,618
Professional fees	2,391	2,528
Other	20,959	16,404
Total	78,963	92,942
Summit Materials, LLC
Schedule Of Accrued Expenses [Line Items]
Interest	10,318	19,591
Payroll and benefits	17,606	24,714
Capital lease obligations	12,509	15,263
Insurance	9,163	9,824
Non-income taxes	6,017	4,618
Professional fees	2,391	2,528
Other	20,942	16,404
Total	$ 78,946	$ 92,942

Debt - Schedule of Debt (Detail

Debt - Schedule of Debt (Details) - USD ($) $ in Thousands	Apr. 02, 2016	Jan. 02, 2016
Debt
Total debt	$ 1,540,410	$ 1,291,858
Current portion of long-term debt	6,500	6,500
Long-term debt	1,533,910	1,285,358
Gross amount	1,545,125
Debt discount	4,715
Summit Materials, LLC
Debt
Total debt	1,540,410	1,291,858
Current portion of long-term debt	6,500	6,500
Long-term debt	1,533,910	1,285,358
Gross amount	1,545,125
Debt discount	4,715
Term Loan, due 2022
Debt
Total debt	642,185	643,693
Gross amount	645,100	646,800
Debt discount	2,900	3,100
Term Loan, due 2022 | Summit Materials, LLC
Debt
Total debt	642,185	643,693
Gross amount	645,100	646,800
Debt discount	2,900	3,100
8 1/2% Senior Notes, due 2022
Debt
Total debt	$ 250,000
Debt instrument interest rate (as a percent)	8.50%
8 1/2% Senior Notes, due 2022 | Summit Materials, LLC
Debt
Total debt	$ 250,000
Debt instrument interest rate (as a percent)	8.50%
6 1/8% Senior Notes, due 2023
Debt
Total debt	$ 648,225	648,165
Gross amount	650,000	$ 650,000
Debt discount	$ 1,800
Debt instrument interest rate (as a percent)	6.125%	6.125%
6 1/8% Senior Notes, due 2023 | Summit Materials, LLC
Debt
Total debt	$ 648,225	$ 648,165
Gross amount	650,000	$ 650,000
Debt discount	$ 1,800
Debt instrument interest rate (as a percent)	6.125%	6.125%

Debt - Schedule of Contractual

Debt - Schedule of Contractual Payments of Long-Term Debt (Details) $ in Thousands	Apr. 02, 2016USD ($)
Contractual payments of long-term debt
2016 (nine months)	$ 4,875
2,017	6,500
2,018	4,875
2,019	6,500
2,020	8,125
2,021	6,500
Thereafter	1,507,750
Total	1,545,125
Less: Original issue net discount	(4,715)
Less: Capitalized loan costs	(16,230)
Total debt	1,524,180
Summit Materials, LLC
Contractual payments of long-term debt
2016 (nine months)	4,875
2,017	6,500
2,018	4,875
2,019	6,500
2,020	8,125
2,021	6,500
Thereafter	1,507,750
Total	1,545,125
Less: Original issue net discount	(4,715)
Less: Capitalized loan costs	(16,230)
Total debt	$ 1,524,180

Debt - Senior Notes - Additiona

Debt - Senior Notes - Additional Information (Details) - USD ($) $ in Thousands	Mar. 08, 2016	Jul. 17, 2015	Mar. 28, 2015	Jan. 02, 2016	Apr. 02, 2016	Nov. 28, 2015	Aug. 22, 2015	Apr. 25, 2015
Debt
Write off of deferred financing fees			$ 688
Davenport Assets
Debt
Proceeds used to pay initial purchase price				$ 370,000
8 1/2% Senior Notes, due 2022
Debt
Senior notes, interest rate (as a percent)					8.50%
6 1/8% Senior Notes, due 2023
Debt
Senior notes, interest rate (as a percent)				6.125%	6.125%
10 1/2% Senior Notes, due 2020
Debt
Senior notes, aggregate principal amount redeemed						$ 153,800	$ 183,000	$ 288,200
Charges on redemption			0	$ 56,500
Prepayment premium				66,600
Write off of deferred financing fees				11,900
Net benefit from the write-off the original issuance premium and discount				22,000
Issuers | 8 1/2% Senior Notes, due 2022
Debt
Debt instrument, face amount	$ 250,000
Senior notes, interest rate (as a percent)	8.50%
Percentage of par value of senior notes	100.00%
Proceeds net of related fees and expenses	$ 246,300
Issuers | 6 1/8% Senior Notes, due 2023
Debt
Debt instrument, face amount				$ 650,000
Senior notes, interest rate (as a percent)				6.125%
Issuers | 6 1/8% Senior Notes, due 2023, issued at par
Debt
Debt instrument, face amount				$ 350,000
Issuers | 6 1/8% Senior Notes, due 2023, , issued at 99.375% of par
Debt
Debt instrument, face amount				$ 300,000
Percentage of par value of senior notes				99.375%
Summit Materials, LLC
Debt
Write off of deferred financing fees			$ 688
Summit Materials, LLC | Davenport Assets
Debt
Proceeds used to pay initial purchase price		$ 370,000
Summit Materials, LLC | 8 1/2% Senior Notes, due 2022
Debt
Senior notes, interest rate (as a percent)					8.50%
Summit Materials, LLC | 6 1/8% Senior Notes, due 2023
Debt
Senior notes, interest rate (as a percent)				6.125%	6.125%
Summit Materials, LLC | 10 1/2% Senior Notes, due 2020
Debt
Senior notes, aggregate principal amount redeemed						$ 153,800	$ 183,000	$ 288,200
Charges on redemption				$ 56,500
Prepayment premium				66,600
Write off of deferred financing fees				11,900
Net benefit from the write-off the original issuance premium and discount				$ 22,000

Debt - Senior Secured Credit Fa

Debt - Senior Secured Credit Facilities - Additional Information (Details) $ in Thousands	3 Months Ended
	Apr. 02, 2016USD ($)item	Mar. 28, 2015USD ($)	Jul. 17, 2015USD ($)	Jul. 16, 2015USD ($)	Mar. 11, 2015USD ($)	Mar. 10, 2015USD ($)
Debt
Financing fees recognized	$ 729	$ 982
Interest expense	18,300	22,000
Summit Materials, LLC
Debt
Financing fees recognized	729	982
Interest expense	$ 18,300	22,000
Summit Materials, LLC | Senior Secured Credit Facilities
Debt
Financing fees recognized		$ 800
First lien leverage ratio	4.75
Summit Materials, LLC | Term Loan, due 2022
Debt
Debt instrument, face amount	$ 650,000		$ 650,000	$ 422,000
Quarterly principal repayments percentage	0.25%
Number of step downs | item	1
Step down (as a percent)	0.25%
Summit Materials, LLC | Term Loan, due 2022 | LIBOR
Debt
Basis spread on variable rate	3.25%
Interest rate floor (as a percent)	1.00%
Summit Materials, LLC | Term Loan, due 2022 | Base rate
Debt
Basis spread on variable rate	2.25%
Summit Materials, LLC | Revolving Credit Facility
Debt
Maximum borrowing capacity	$ 235,000				$ 235,000	$ 150,000
Amount outstanding	0
Remaining borrowing capacity	$ 210,600
Summit Materials, LLC | Revolving Credit Facility | LIBOR
Debt
Basis spread on variable rate	3.25%
Summit Materials, LLC | Revolving Credit Facility | LIBOR Plus 1%
Debt
Basis spread on variable rate	2.25%
Percentage added to base rate	1.00%
Summit Materials, LLC | Revolving Credit Facility | Federal funds rate
Debt
Basis spread on variable rate	0.50%
Summit Materials, LLC | Letter of Credit
Debt
Amount outstanding	$ 24,400

Debt - Summary of Activity for

Debt - Summary of Activity for Deferred Financing Fees (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Apr. 02, 2016	Mar. 28, 2015	Jan. 02, 2016
Deferred finance costs
Beginning balance	$ 15,892	$ 17,215	$ 17,215
Loan origination fees	5,001	4,048
Amortization	(729)	(982)
Write off of deferred financing fees		(688)
Ending balance	20,164	19,593	15,892
Summit Materials, LLC
Deferred finance costs
Beginning balance	15,892	17,215	17,215
Loan origination fees	5,001	4,048
Amortization	(729)	(982)
Write off of deferred financing fees		(688)
Ending balance	$ 20,164	$ 19,593	$ 15,892

Debt - Other - Additional Infor

Debt - Other - Additional Information (Details) - CAD CAD in Millions	Jan. 15, 2015	Apr. 02, 2016	Jan. 02, 2016
Canadian subsidiary credit agreement
Debt
Amount outstanding		CAD 0
Canadian subsidiary credit agreement | Summit Materials, LLC
Debt
Amount outstanding			CAD 0
Canadian subsidiary credit agreement, Operating activities
Debt
Revolving credit commitment	CAD 6
Canadian subsidiary credit agreement, Operating activities | Summit Materials, LLC
Debt
Revolving credit commitment	6
Canadian subsidiary credit agreement, Capital equipment
Debt
Revolving credit commitment	CAD 0.5
Basis spread on variable rate	0.90%
Canadian subsidiary credit agreement, Capital equipment | Summit Materials, LLC
Debt
Revolving credit commitment	CAD 0.5
Basis spread on variable rate	0.90%
Canadian subsidiary credit agreement, Guarantees
Debt
Revolving credit commitment	CAD 0.4
Canadian subsidiary credit agreement, Guarantees | Summit Materials, LLC
Debt
Revolving credit commitment	CAD 0.4
Prime rate | Canadian subsidiary credit agreement, Operating activities
Debt
Basis spread on variable rate	0.20%
Prime rate | Canadian subsidiary credit agreement, Operating activities | Summit Materials, LLC
Debt
Basis spread on variable rate	0.20%

Accumulated Other Comprehensi55

Accumulated Other Comprehensive Loss - Summary of Changes in Each Component of Accumulated Comprehensive Income Loss (Details) - USD ($) $ in Thousands	3 Months Ended
	Apr. 02, 2016	Mar. 28, 2015
Changes in each component of accumulated other comprehensive loss
Beginning balance	$ 628,265
Ending balance	610,267
Accumulated Other Comprehensive Loss
Changes in each component of accumulated other comprehensive loss
Beginning balance	(2,795)
Foreign currency translation adjustment	2,309
Loss on cash flow hedges	(1,111)
Ending balance	(1,597)
Change in retirement plans
Changes in each component of accumulated other comprehensive loss
Beginning balance	1,049
Ending balance	1,049
Foreign currency translation adjustment
Changes in each component of accumulated other comprehensive loss
Beginning balance	(3,379)
Foreign currency translation adjustment	2,309
Ending balance	(1,070)
Cash flow hedge adjustments
Changes in each component of accumulated other comprehensive loss
Beginning balance	(465)
Loss on cash flow hedges	(1,111)
Ending balance	(1,576)
Summit Materials, LLC | Accumulated Other Comprehensive Loss
Changes in each component of accumulated other comprehensive loss
Beginning balance	(28,466)	$ (15,546)
Foreign currency translation adjustment	4,642	(6,299)
Loss on cash flow hedges	(2,234)
Ending balance	(26,058)	(21,845)
Summit Materials, LLC | Change in retirement plans
Changes in each component of accumulated other comprehensive loss
Beginning balance	(7,607)	(9,730)
Ending balance	(7,607)	(9,730)
Summit Materials, LLC | Foreign currency translation adjustment
Changes in each component of accumulated other comprehensive loss
Beginning balance	(19,915)	(5,816)
Foreign currency translation adjustment	4,642	(6,299)
Ending balance	(15,273)	$ (12,115)
Summit Materials, LLC | Cash flow hedge adjustments
Changes in each component of accumulated other comprehensive loss
Beginning balance	(944)
Loss on cash flow hedges	(2,234)
Ending balance	$ (3,178)

Net Loss Per Share - Schedule o

Net Loss Per Share - Schedule of Basic to Diluted Loss Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Apr. 02, 2016	Mar. 28, 2015
Reconciliation of basic to diluted loss per share
Net loss attributable to Summit Inc.	$ (21,118)	$ (10,151)
LP Units
Reconciliation of basic to diluted loss per share
Anti dilutive shares excluded from calculation of earnings per share	50,261,471	69,007,297
Time Vesting Restricted Stock Units
Reconciliation of basic to diluted loss per share
Anti dilutive shares excluded from calculation of earnings per share	336,657
Market Based Restricted Stock Units
Reconciliation of basic to diluted loss per share
Anti dilutive shares excluded from calculation of earnings per share	130,691
Stock options
Reconciliation of basic to diluted loss per share
Anti dilutive shares excluded from calculation of earnings per share	2,767,458	2,280,314
Warrants
Reconciliation of basic to diluted loss per share
Anti dilutive shares excluded from calculation of earnings per share	160,333	160,333
Common Class A
Reconciliation of basic to diluted loss per share
Weighted average shares of Class A common stock outstanding	49,746,971	27,319,846
Basic loss per share	$ (0.42)	$ (0.37)
Summit Materials, LLC
Reconciliation of basic to diluted loss per share
Net loss attributable to Summit Inc.	$ (42,164)	$ (77,855)

Commitments and Contingencies -

Commitments and Contingencies - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended		60 Months Ended
	Apr. 02, 2016	Dec. 29, 2012	Dec. 31, 2011	Jan. 02, 2016
Contingencies
Unapproved change orders and claims				$ 1.2
Term of purchase commitments	1 year
Assumption of Obligations Under Indemnification Agreement
Contingencies
Amount funded for loss incurred by joint venture		$ 4	$ 4.8	8.8
Recognized losses on indemnification agreement		8	1.9
Assumption of Obligations Under Indemnification Agreement | Other noncurrent liabilities
Contingencies
Accrual recorded in other noncurrent liabilities	$ 4.3
Site Restoration Obligations
Contingencies
Anticipated costs	63.2			56.7
Site Restoration Obligations | Other noncurrent liabilities
Contingencies
Site restoration obligation, non-current	19.1			18.7
Site Restoration Obligations | Accrued expenses.
Contingencies
Site restoration obligation, current	$ 2.1			2
Summit Materials, LLC
Contingencies
Unapproved change orders and claims				1.2
Term of purchase commitments	1 year
Summit Materials, LLC | Assumption of Obligations Under Indemnification Agreement
Contingencies
Amount funded for loss incurred by joint venture		4	4.8	8.8
Recognized losses on indemnification agreement		$ 8	$ 1.9
Summit Materials, LLC | Assumption of Obligations Under Indemnification Agreement | Other noncurrent liabilities
Contingencies
Accrual recorded in other noncurrent liabilities	$ 4.3
Summit Materials, LLC | Site Restoration Obligations
Contingencies
Anticipated costs	63.2			56.7
Summit Materials, LLC | Site Restoration Obligations | Other noncurrent liabilities
Contingencies
Site restoration obligation, non-current	19.1			18.7
Summit Materials, LLC | Site Restoration Obligations | Accrued expenses.
Contingencies
Site restoration obligation, current	$ 2.1			$ 2

Supplemental Cash Flow Inform58

Supplemental Cash Flow Information - Schedule of Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Apr. 02, 2016	Mar. 28, 2015
Cash payments:
Interest	$ 28,129	$ 39,165
Income taxes	269	453
Non cash financing activities:
Purchase of noncontrolling interest in Continental Cement		(29,102)
Summit Materials, LLC
Cash payments:
Interest	28,129	39,165
Income taxes	$ 269	453
Non cash financing activities:
Purchase of noncontrolling interest in Continental Cement		$ (64,102)

Segment Information - Financial

Segment Information - Financial Data (Details) $ in Thousands	3 Months Ended
	Apr. 02, 2016USD ($)segment	Mar. 28, 2015USD ($)	Jan. 02, 2016USD ($)
Segment Information
Number of operating segments | segment	3
Total revenue	$ 228,379	$ 193,987
Adjusted EBITDA	8,409	(1,354)
Interest expense	21,577	24,109
Depreciation, depletion and amortization	31,900	25,722
Accretion	460	404
Initial public offering costs		28,296
Loss on debt financings		799
Acquisition transaction expenses	3,316	1,364
Management fees and expenses		993
Non-cash compensation	2,036	766
Other	180	(498)
(Loss) income from operations before taxes	(50,700)	(84,305)
Total capital expenditures	39,125	17,708
Total depreciation, depletion, amortization and accretion	32,360	26,126
Total assets	$ 2,614,048		$ 2,396,179
Summit Materials, LLC
Segment Information
Number of operating segments | segment	3
Total revenue	$ 228,379	193,987
Adjusted EBITDA	8,426	(1,354)
Interest expense	21,286	24,109
Depreciation, depletion and amortization	31,900	25,722
Accretion	460	404
Initial public offering costs		28,296
Loss on debt financings		799
Acquisition transaction expenses	3,316	1,364
Management fees and expenses		993
Non-cash compensation	2,036	766
Other	180	(498)
(Loss) income from operations before taxes	(50,392)	(84,305)
Total capital expenditures	39,125	17,708
Total depreciation, depletion, amortization and accretion	32,360	26,126
Total assets	2,613,031		2,395,162
West
Segment Information
Total revenue	123,717	127,674
West | Summit Materials, LLC
Segment Information
Total revenue	123,717	127,674
East
Segment Information
Total revenue	70,674	52,536
East | Summit Materials, LLC
Segment Information
Total revenue	70,674	52,536
Cement
Segment Information
Total revenue	33,988	13,777
Cement | Summit Materials, LLC
Segment Information
Total revenue	33,988	13,777
Operating segment
Segment Information
Total capital expenditures	38,531	16,817
Total depreciation, depletion, amortization and accretion	31,726	25,637
Total assets	2,511,882		2,210,607
Operating segment | Summit Materials, LLC
Segment Information
Total capital expenditures	38,531	16,817
Total depreciation, depletion, amortization and accretion	31,726	25,637
Total assets	2,511,882		2,210,607
Operating segment | West
Segment Information
Adjusted EBITDA	13,279	12,032
Total capital expenditures	23,252	5,419
Total depreciation, depletion, amortization and accretion	16,036	12,088
Total assets	826,775		821,479
Operating segment | West | Summit Materials, LLC
Segment Information
Adjusted EBITDA	13,279	12,032
Total capital expenditures	23,252	5,419
Total depreciation, depletion, amortization and accretion	16,036	12,088
Total assets	826,775		821,479
Operating segment | East
Segment Information
Adjusted EBITDA	3,173	(3,504)
Total capital expenditures	11,050	7,385
Total depreciation, depletion, amortization and accretion	10,431	10,135
Total assets	828,343		545,187
Operating segment | East | Summit Materials, LLC
Segment Information
Adjusted EBITDA	3,173	(3,504)
Total capital expenditures	11,050	7,385
Total depreciation, depletion, amortization and accretion	10,431	10,135
Total assets	828,343		545,187
Operating segment | Cement
Segment Information
Adjusted EBITDA	971	(3,413)
Total capital expenditures	4,229	4,013
Total depreciation, depletion, amortization and accretion	5,259	3,414
Total assets	856,764		843,941
Operating segment | Cement | Summit Materials, LLC
Segment Information
Adjusted EBITDA	971	(3,413)
Total capital expenditures	4,229	4,013
Total depreciation, depletion, amortization and accretion	5,259	3,414
Total assets	856,764		843,941
Corporate and other
Segment Information
Adjusted EBITDA	(9,014)	(6,469)
Total capital expenditures	594	891
Total depreciation, depletion, amortization and accretion	634	489
Total assets	102,166		185,572
Corporate and other | Summit Materials, LLC
Segment Information
Adjusted EBITDA	(8,997)	(6,469)
Total capital expenditures	594	891
Total depreciation, depletion, amortization and accretion	634	$ 489
Total assets	$ 101,149		$ 184,555

Segment Information - By Produc

Segment Information - By Product (Details) - USD ($) $ in Thousands	3 Months Ended
	Apr. 02, 2016	Mar. 28, 2015
Revenue by product
Total revenue	$ 228,379	$ 193,987
Aggregates
Revenue by product
Total revenue	65,057	52,337
Cement
Revenue by product
Total revenue	30,632	11,819
Ready-mixed concrete
Revenue by product
Total revenue	80,237	70,088
Asphalt
Revenue by product
Total revenue	14,357	20,914
Paving and related services
Revenue by product
Total revenue	35,668	43,899
Other
Revenue by product
Total revenue	2,428	(5,070)
Summit Materials, LLC
Revenue by product
Total revenue	228,379	193,987
Summit Materials, LLC | Aggregates
Revenue by product
Total revenue	65,057	52,337
Summit Materials, LLC | Cement
Revenue by product
Total revenue	30,632	11,819
Summit Materials, LLC | Ready-mixed concrete
Revenue by product
Total revenue	80,237	70,088
Summit Materials, LLC | Asphalt
Revenue by product
Total revenue	14,357	20,914
Summit Materials, LLC | Paving and related services
Revenue by product
Total revenue	35,668	43,899
Summit Materials, LLC | Other
Revenue by product
Total revenue	$ 2,428	$ (5,070)

Related Party Transactions - Ad

Related Party Transactions - Additional Information (Details) - USD ($)

Aug. 13, 2015

Aug. 11, 2015

Jul. 17, 2015

Apr. 16, 2015

Mar. 17, 2015

Mar. 11, 2015

Aug. 31, 2015

Aug. 13, 2015

Apr. 02, 2016

Mar. 28, 2015

Jan. 02, 2016

Mar. 31, 2016

Nov. 30, 2015

Jul. 31, 2015

IPO | Common Class A

Related Party Transactions

Issuance of Shares (in shares)

25,555,555

Follow on Public Offering | Common Class A

Related Party Transactions

Issuance of Shares (in shares)

22,425,000

Davenport Assets

Related Party Transactions

Net cash paid for acquisitions

$ 80,000,000

$ 370,000,000

$ 450,000,000

Deferred purchase price associated with acquisition

80,000,000

Davenport Assets | Follow on Public Offering

Related Party Transactions

Net cash paid for acquisitions

80,000,000

Summit Materials, LLC | Davenport Assets

Related Party Transactions

Net cash paid for acquisitions

$ 80,000,000

370,000,000

$ 450,000,000

Deferred purchase price associated with acquisition

$ 80,000,000

Blackstone Management Partners L.L.C. | Management fee

Related Party Transactions

Related party expense

$ 1,000,000

Blackstone Management Partners L.L.C. | Management fee | Minimum

Related Party Transactions

Annual management fee

$ 300,000

Annual management fee, as a percent of annual consolidated profit

2.00%

Blackstone Management Partners L.L.C. | Management fee | Summit Materials, LLC

Related Party Transactions

Related party expense

$ 1,000,000

Blackstone Management Partners L.L.C. | Management fee | Summit Materials, LLC | Minimum

Related Party Transactions

Annual management fee

$ 300,000

Annual management fee, as a percent of annual consolidated profit

2.00%

Affiliates of the Sponsors Blackstone Management Partners and Silverhawk Summit | Termination fee paid to related parties | IPO

Related Party Transactions

Related party expense

$ 13,800,000

Affiliates of the Sponsors Blackstone Management Partners and Silverhawk Summit | Termination fee paid to related parties | Summit Materials, LLC | IPO

Related Party Transactions

Related party expense

13,800,000

Affiliates of BMP | Termination fee paid to related parties | IPO

Related Party Transactions

Related party expense

13,400,000

Affiliates of BMP | Termination fee paid to related parties | Summit Materials, LLC | IPO

Related Party Transactions

Related party expense

13,400,000

Affiliates of Silverhawk Summit LP | Termination fee paid to related parties | IPO

Related Party Transactions

Related party expense

400,000

Affiliates of Silverhawk Summit LP | Termination fee paid to related parties | Summit Materials, LLC | IPO

Related Party Transactions

Related party expense

$ 400,000

Blackstone Advisory Partners LP | Follow on Public Offering | Common Class A

Related Party Transactions

Issuance of Shares (in shares)

1,681,875

Blackstone Advisory Partners LP | Summit Materials, LLC | Term Loan, due 2022

Related Party Transactions

Notes issued to related party

$ 18,800,000

Blackstone Advisory Partners LP | Summit Materials, LLC | 6 1/8% Senior Notes, due 2023

Related Party Transactions

Notes issued to related party

$ 22,500,000

$ 26,300,000

Blackstone Advisory Partners LP | Issuance of notes | Term Loan, due 2022

Related Party Transactions

Notes issued to related party

$ 18,800,000

Blackstone Advisory Partners LP | Issuance of notes | 6 1/8% Senior Notes, due 2023

Related Party Transactions

Notes issued to related party

$ 22,500,000

$ 26,300,000

Blackstone Capital Partners V LP | Equity commitment financing

Related Party Transactions

Related party expense

$ 1,800,000

Blackstone Capital Partners V LP | Equity commitment financing | Davenport Assets

Related Party Transactions

Equity commitment financing

$ 90,000,000

Blackstone Capital Partners V LP | Equity commitment financing | Summit Materials, LLC

Related Party Transactions

Related party expense

$ 1,800,000

Blackstone Capital Partners V LP | Equity commitment financing | Summit Materials, LLC | Davenport Assets

Related Party Transactions

Equity commitment financing

$ 90,000,000

Guarantor and Non-Guarantor F62

Guarantor and Non-Guarantor Financial Information - Schedule of Condensed Consolidating Balance Sheets (Details) - USD ($) $ in Thousands	Apr. 02, 2016	Jan. 02, 2016	Mar. 28, 2015	Dec. 27, 2014
Current assets:
Cash and cash equivalents	$ 92,244	$ 186,405	$ 314,980	$ 13,215
Accounts receivable, net	132,513	145,544
Cost and estimated earnings in excess of billings	7,797	5,690
Inventories	171,991	130,082
Other current assets	15,003	4,807
Total current assets	419,548	472,528
Property, plant and equipment, net	1,397,702	1,269,006
Goodwill	735,746	596,397
Intangible assets, net	14,521	15,005
Other assets	46,531	43,243
Total assets	2,614,048	2,396,179
Current liabilities:
Current portion of debt	6,500	6,500
Current portion of acquisition-related liabilities	17,797	20,584
Accounts payable	91,560	81,397
Accrued expenses	78,963	92,942
Billings in excess of costs and estimated earnings	10,667	13,081
Total current liabilities	205,487	214,504
Long-term debt	1,517,680	1,273,652
Acquisition-related liabilities	32,175	39,977
Other noncurrent liabilities	129,050	100,186
Total liabilities	1,884,392	1,628,319
Total liabilities and stockholders' equity / member's interest	2,614,048	2,396,179
Summit Materials, LLC
Current assets:
Cash and cash equivalents	91,227	185,388	314,980	13,215
Accounts receivable, net	132,513	145,544
Cost and estimated earnings in excess of billings	7,797	5,690
Inventories	171,991	130,082
Other current assets	15,003	4,807
Total current assets	418,531	471,511
Property, plant and equipment, net	1,397,702	1,269,006
Goodwill	735,746	596,397
Intangible assets, net	14,521	15,005
Other assets	46,531	43,243
Total assets	2,613,031	2,395,162
Current liabilities:
Current portion of debt	6,500	6,500
Current portion of acquisition-related liabilities	15,297	18,084
Accounts payable	91,560	81,397
Accrued expenses	78,946	92,942
Billings in excess of costs and estimated earnings	10,667	13,081
Total current liabilities	202,970	212,004
Long-term debt	1,517,680	1,273,652
Acquisition-related liabilities	25,436	31,028
Other noncurrent liabilities	129,067	100,186
Total liabilities	1,875,153	1,616,870
Total member's interest	737,878	778,292
Total liabilities and stockholders' equity / member's interest	2,613,031	2,395,162
Summit Materials, LLC | Eliminations
Current assets:
Cash and cash equivalents	(10,363)	(11,600)	(8,127)	(7,112)
Accounts receivable, net	(84)	(54)
Intercompany receivables	(908,807)	(687,383)
Total current assets	(919,254)	(699,037)
Other assets	(2,851,764)	(1,930,926)
Total assets	(3,771,018)	(2,629,963)
Current liabilities:
Accounts payable	(84)	(54)
Accrued expenses	(10,363)	(11,600)
Intercompany payables	(908,807)	(687,383)
Total current liabilities	(919,254)	(699,037)
Other noncurrent liabilities	(155,294)	(155,293)
Total liabilities	(1,074,548)	(854,330)
Total member's interest	(2,696,470)	(1,775,633)
Total liabilities and stockholders' equity / member's interest	(3,771,018)	(2,629,963)
Summit Materials, LLC | Issuers
Current assets:
Cash and cash equivalents	91,501	180,712	314,635	10,837
Accounts receivable, net		1
Intercompany receivables	795,850	562,311
Other current assets	1,067	764
Total current assets	888,418	743,788
Property, plant and equipment, net	7,903	10,355
Other assets	2,770,668	1,840,889
Total assets	3,666,989	2,595,032
Current liabilities:
Current portion of debt	6,500	6,500
Current portion of acquisition-related liabilities	1,000	1,400
Accounts payable	4,219	2,138
Accrued expenses	25,429	40,437
Intercompany payables	554,807	122,174
Total current liabilities	591,955	172,649
Long-term debt	1,517,680	1,273,652
Other noncurrent liabilities	3,216	1,292
Total liabilities	2,112,851	1,447,593
Total member's interest	1,554,138	1,147,439
Total liabilities and stockholders' equity / member's interest	3,666,989	2,595,032
Summit Materials, LLC | Guarantors
Current assets:
Cash and cash equivalents	1,580	4,068	577	697
Accounts receivable, net	126,140	136,916
Intercompany receivables	112,791	114,402
Cost and estimated earnings in excess of billings	7,578	5,389
Inventories	166,407	126,553
Other current assets	12,706	3,306
Total current assets	427,202	390,634
Property, plant and equipment, net	1,368,321	1,232,340
Goodwill	687,498	550,028
Intangible assets, net	13,551	13,797
Other assets	126,050	130,992
Total assets	2,622,622	2,317,791
Current liabilities:
Current portion of acquisition-related liabilities	14,297	16,684
Accounts payable	84,568	74,111
Accrued expenses	63,055	62,217
Intercompany payables	350,748	562,537
Billings in excess of costs and estimated earnings	10,644	12,980
Total current liabilities	523,312	728,529
Acquisition-related liabilities	25,436	31,028
Other noncurrent liabilities	224,342	197,484
Total liabilities	773,090	957,041
Total member's interest	1,849,532	1,360,750
Total liabilities and stockholders' equity / member's interest	2,622,622	2,317,791
Summit Materials, LLC | Non Guarantors
Current assets:
Cash and cash equivalents	8,509	12,208	$ 7,895	$ 8,793
Accounts receivable, net	6,457	8,681
Intercompany receivables	166	10,670
Cost and estimated earnings in excess of billings	219	301
Inventories	5,584	3,529
Other current assets	1,230	737
Total current assets	22,165	36,126
Property, plant and equipment, net	21,478	26,311
Goodwill	48,248	46,369
Intangible assets, net	970	1,208
Other assets	1,577	2,288
Total assets	94,438	112,302
Current liabilities:
Accounts payable	2,857	5,202
Accrued expenses	825	1,888
Intercompany payables	3,252	2,672
Billings in excess of costs and estimated earnings	23	101
Total current liabilities	6,957	9,863
Other noncurrent liabilities	56,803	56,703
Total liabilities	63,760	66,566
Total member's interest	30,678	45,736
Total liabilities and stockholders' equity / member's interest	$ 94,438	$ 112,302

Guarantor and Non-Guarantor F63

Guarantor and Non-Guarantor Financial Information - Schedule of Condensed Consolidating Statements of Operations (Details) - USD ($) $ in Thousands	1 Months Ended	2 Months Ended	3 Months Ended
	Mar. 28, 2015	Mar. 11, 2015	Apr. 02, 2016	Mar. 28, 2015
Condensed Consolidating Statements of Operations
Revenue			$ 228,379	$ 193,987
Cost of revenue (excluding items shown separately below)			176,888	158,269
Depreciation, depletion, amortization and accretion			32,360	26,126
Operating (loss) income			(29,555)	(59,006)
Interest expense			21,577	24,109
(Loss) income from operations before taxes			(50,700)	(84,305)
Income tax (benefit) expense			(8,166)	(4,468)
Net (loss) income	$ (36,532)	$ (41,415)	(42,534)	(79,837)
Net income (loss) attributable to member of Summit Materials, LLC			(21,118)	(10,151)
Comprehensive (loss) income attributable to member of Summit Materials, LLC			(19,920)	(11,201)
Summit Materials, LLC
Condensed Consolidating Statements of Operations
Revenue			228,379	193,987
Cost of revenue (excluding items shown separately below)			176,888	158,269
General and administrative expenses			48,686	68,598
Depreciation, depletion, amortization and accretion			32,360	26,126
Operating (loss) income			(29,555)	(59,006)
Other expense (income), net			(449)	1,190
Interest expense			21,286	24,109
(Loss) income from operations before taxes			(50,392)	(84,305)
Income tax (benefit) expense			(8,149)	(4,468)
(Loss) income from operations				(79,837)
Net (loss) income			(42,243)	(79,837)
Net loss attributable to noncontrolling interest			(79)	(1,982)
Net income (loss) attributable to member of Summit Materials, LLC			(42,164)	(77,855)
Comprehensive (loss) income attributable to member of Summit Materials, LLC			(39,756)	(84,154)
Summit Materials, LLC | Eliminations
Condensed Consolidating Statements of Operations
Revenue			(1,964)	(19,002)
Cost of revenue (excluding items shown separately below)			(1,964)	(19,002)
Other expense (income), net			(12,748)	(25,484)
Interest expense				(6,625)
(Loss) income from operations before taxes			12,748	32,109
(Loss) income from operations				32,109
Net (loss) income			12,748	32,109
Net loss attributable to noncontrolling interest			(79)	(1,982)
Net income (loss) attributable to member of Summit Materials, LLC			12,827	34,091
Comprehensive (loss) income attributable to member of Summit Materials, LLC			15,235	40,390
Summit Materials, LLC | Issuers
Condensed Consolidating Statements of Operations
General and administrative expenses			14,183	37,781
Depreciation, depletion, amortization and accretion			634	490
Operating (loss) income			(14,817)	(38,271)
Other expense (income), net			12,249	25,786
Interest expense			15,098	13,798
(Loss) income from operations before taxes			(42,164)	(77,855)
(Loss) income from operations				(77,855)
Net (loss) income			(42,164)	(77,855)
Net income (loss) attributable to member of Summit Materials, LLC			(42,164)	(77,855)
Comprehensive (loss) income attributable to member of Summit Materials, LLC			(39,756)	(84,154)
Summit Materials, LLC | Guarantors
Condensed Consolidating Statements of Operations
Revenue			221,655	179,343
Cost of revenue (excluding items shown separately below)			172,986	151,226
General and administrative expenses			33,066	29,151
Depreciation, depletion, amortization and accretion			30,669	24,153
Operating (loss) income			(15,066)	(25,187)
Other expense (income), net			233	739
Interest expense			5,328	16,055
(Loss) income from operations before taxes			(20,627)	(41,981)
Income tax (benefit) expense			(8,088)	(4,538)
(Loss) income from operations				(37,443)
Net (loss) income			(12,539)	(37,443)
Net income (loss) attributable to member of Summit Materials, LLC			(12,539)	(37,443)
Comprehensive (loss) income attributable to member of Summit Materials, LLC			(10,305)	(37,443)
Summit Materials, LLC | Non Guarantors
Condensed Consolidating Statements of Operations
Revenue			8,688	33,646
Cost of revenue (excluding items shown separately below)			5,866	26,045
General and administrative expenses			1,437	1,666
Depreciation, depletion, amortization and accretion			1,057	1,483
Operating (loss) income			328	4,452
Other expense (income), net			(183)	149
Interest expense			860	881
(Loss) income from operations before taxes			(349)	3,422
Income tax (benefit) expense			(61)	70
(Loss) income from operations				3,352
Net (loss) income			(288)	3,352
Net income (loss) attributable to member of Summit Materials, LLC			(288)	3,352
Comprehensive (loss) income attributable to member of Summit Materials, LLC			$ (4,930)	$ (2,947)

Guarantor and Non-Guarantor F64

Guarantor and Non-Guarantor Financial Information - Schedule of Condensed Consolidating Statements of Cash Flows (Details) - USD ($) $ in Thousands	3 Months Ended
	Apr. 02, 2016	Mar. 28, 2015
Condensed Consolidating Statements of Operations
Net cash (used in) provided by operating activities	$ (41,958)	$ (61,306)
Cash flow from investing activities:
Acquisitions, net of cash acquired	(249,111)
Purchase of property, plant and equipment	(39,125)	(17,708)
Proceeds from the sale of property, plant, and equipment	6,019	2,741
Other		(276)
Net cash used for investing activities	(282,217)	(15,243)
Cash flow from financing activities:
Capital issuance costs		(35,956)
Net proceeds from debt issuance	250,000	104,000
Payments on long-term debt	(3,458)	(106,441)
Payments on acquisition-related liabilities	(11,973)	(4,032)
Financing costs	(5,001)	(4,055)
Net cash provided by (used for) financing activities	229,568	378,516
Impact of cash on foreign currency	446	(202)
Net increase (decrease) in cash	(94,161)	301,765
Cash and cash equivalents-beginning of period	186,405	13,215
Cash and cash equivalents-end of period	92,244	314,980
Summit Materials, LLC
Condensed Consolidating Statements of Operations
Net cash (used in) provided by operating activities	(41,958)	(61,306)
Cash flow from investing activities:
Acquisitions, net of cash acquired	(249,111)
Purchase of property, plant and equipment	(39,125)	(17,708)
Proceeds from the sale of property, plant, and equipment	6,019	2,741
Other		(276)
Net cash used for investing activities	(282,217)	(15,243)
Cash flow from financing activities:
Proceeds from investment by member		397,975
Capital issuance costs		(8,931)
Net proceeds from debt issuance	250,000	104,000
Payments on long-term debt	(3,458)	(106,441)
Payments on acquisition-related liabilities	(9,473)	(4,032)
Financing costs	(5,001)	(4,055)
Distributions from partnership	(2,500)
Net cash provided by (used for) financing activities	229,568	378,516
Impact of cash on foreign currency	446	(202)
Net increase (decrease) in cash	(94,161)	301,765
Cash and cash equivalents-beginning of period	185,388	13,215
Cash and cash equivalents-end of period	91,227	314,980
Summit Materials, LLC | Eliminations
Condensed Consolidating Statements of Operations
Net cash (used in) provided by operating activities		(167)
Cash flow from financing activities:
Loans received from and payments made on loans from other Summit Companies	1,237	(2,070)
Payments on long-term debt		1,055
Other		167
Net cash provided by (used for) financing activities	1,237	(848)
Net increase (decrease) in cash	1,237	(1,015)
Cash and cash equivalents-beginning of period	(11,600)	(7,112)
Cash and cash equivalents-end of period	(10,363)	(8,127)
Summit Materials, LLC | Issuers
Condensed Consolidating Statements of Operations
Net cash (used in) provided by operating activities	(44,336)	(37,814)
Cash flow from investing activities:
Acquisitions, net of cash acquired	(42,073)
Purchase of property, plant and equipment	(593)	(891)
Net cash used for investing activities	(42,666)	(891)
Cash flow from financing activities:
Proceeds from investment by member	(448,711)	397,975
Capital issuance costs		(8,931)
Net proceeds from debt issuance	250,000	104,000
Loans received from and payments made on loans from other Summit Companies	206,028	(41,265)
Payments on long-term debt	(1,625)	(105,055)
Payments on acquisition-related liabilities	(400)	(166)
Financing costs	(5,001)	(4,055)
Distributions from partnership	(2,500)
Net cash provided by (used for) financing activities	(2,209)	342,503
Net increase (decrease) in cash	(89,211)	303,798
Cash and cash equivalents-beginning of period	180,712	10,837
Cash and cash equivalents-end of period	91,501	314,635
Summit Materials, LLC | Guarantors
Condensed Consolidating Statements of Operations
Net cash (used in) provided by operating activities	5,841	(26,132)
Cash flow from investing activities:
Acquisitions, net of cash acquired	(207,038)
Purchase of property, plant and equipment	(38,295)	(16,453)
Proceeds from the sale of property, plant, and equipment	6,019	2,703
Other		(276)
Net cash used for investing activities	(239,314)	(14,026)
Cash flow from financing activities:
Proceeds from investment by member	448,711
Loans received from and payments made on loans from other Summit Companies	(206,820)	46,512
Payments on long-term debt	(1,833)	(2,441)
Payments on acquisition-related liabilities	(9,073)	(3,866)
Other		(167)
Net cash provided by (used for) financing activities	230,985	40,038
Net increase (decrease) in cash	(2,488)	(120)
Cash and cash equivalents-beginning of period	4,068	697
Cash and cash equivalents-end of period	1,580	577
Summit Materials, LLC | Non Guarantors
Condensed Consolidating Statements of Operations
Net cash (used in) provided by operating activities	(3,463)	2,807
Cash flow from investing activities:
Purchase of property, plant and equipment	(237)	(364)
Proceeds from the sale of property, plant, and equipment		38
Net cash used for investing activities	(237)	(326)
Cash flow from financing activities:
Loans received from and payments made on loans from other Summit Companies	(445)	(3,177)
Net cash provided by (used for) financing activities	(445)	(3,177)
Impact of cash on foreign currency	446	(202)
Net increase (decrease) in cash	(3,699)	(898)
Cash and cash equivalents-beginning of period	12,208	8,793
Cash and cash equivalents-end of period	$ 8,509	$ 7,895

Subsequent Events (Details)

Subsequent Events (Details) - Sierra Ready Mix, LLC - Subsequent Event	1 Months Ended
	Apr. 30, 2016facilityitem
Subsequent Events
Number of sand and gravel pits acquired	1
Summit Materials, LLC
Subsequent Events
Number of sand and gravel pits acquired | item	1
Cement plant
Subsequent Events
Number of plants acquired	2
Cement plant | Summit Materials, LLC
Subsequent Events
Number of plants acquired	2