10-Q

As filed with the Securities and Exchange Commission on November 8, 2016

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 10-Q

x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended September 30, 2016

or

¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from __________ to __________.

Commission File Number: 001-36293

CONTINENTAL BUILDING PRODUCTS, INC.
(Exact name of registrant as specified in its charter)
Delaware	61-1718923
(State or other jurisdiction of incorporation)	(I.R.S Employer Identification No.)
12950 Worldgate Drive, Suite 700, Herndon, VA	20170
(Address of principal executive offices)	(Zip Code)
(703) 480-3800
(Registrant's telephone number, including the area code)

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    

Yes    x    No    ¨

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).

Yes    x    No    ¨

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer        ¨            Accelerated filer            x

Non-accelerated filer        ¨            Smaller Reporting Company        ¨

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).

Yes    ¨    No    x

As of November 2, 2016, the registrant had outstanding 39,992,339 shares of the registrant’s common stock, which amount excludes 4,199,031 shares of common stock held by the registrant as treasury shares.

1

Table of Contents to Third Quarter 2016 Form 10-Q

Part I - Financial Information		3
Item 1.	Financial Statements	3
	Consolidated Statements of Operations	3
	Consolidated Statements of Comprehensive Income	4
	Consolidated Balance Sheets	5
	Consolidated Statements of Cash Flows	6
	Notes to the Unaudited Consolidated Financial Statements	7
	1. Background and Nature of Operations	7
	2. Significant Accounting Policies	8
	3. Receivables, Net	9
	4. Inventories	9
	5. Property, Plant and Equipment, Net	9
	6. Customer Relationships and Other Intangibles, Net	10
	7. Accrued and Other Liabilities	10
	8. Income Taxes	10
	9. Commitments and Contingencies	11
	10. Related Party Transactions	12
	11. Investment in Seven Hills	12
	12. Debt	13
	13. Derivative Instruments	15
	14. Segment Reporting	16
	15. Treasury Stock	17
	16. Share-Based Compensation	18
	17. Earnings Per Share	18
	18. Fair Value Disclosures	19
Item 2.	Management's Discussion and Analysis of Financial Condition and Results of Operations	20
	Overview	20
	Results of Operations	21
	Non-GAAP Measures	23
	Liquidity and Capital Resources	24
	Critical Accounting Policies and Estimates	24
	Forward-Looking Statements	25
Item 3.	Quantitative and Qualitative Disclosures About Market Risk	26
Item 4.	Controls and Procedures	27
Part II - Other Information		28
Item 1.	Legal Proceedings	28
Item 1A.	Risk Factors	28
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds	28
Item 3.	Defaults Upon Senior Securities	28
Item 4.	Mine Safety Disclosures	28
Item 5.	Other Information	28
Item 6.	Exhibits	29
	Signatures	30

2

PART I - FINANCIAL INFORMATION

Item 1. Financial Statements

Continental Building Products, Inc.

Consolidated Statements of Operations

(unaudited)

	For the Three Months Ended						For the Nine Months Ended
	September 30, 2016			September 30, 2015			September 30, 2016			September 30, 2015
	(in thousands, except share data and per share amounts)
Net sales	$	114,558		$	108,150		$	343,158		$	311,322
Costs, expenses and other income:
Cost of goods sold	86,756			78,151			250,455			231,342
Selling and administrative	9,241			9,008			28,364			26,799
Long Term Incentive Plan funded by Lone Star	—			9,933			—			29,946
Total costs and operating expenses	95,997			97,092			278,819			288,087
Operating income	18,561			11,058			64,339			23,235
Other expense, net	(5,900		)	(283		)	(5,740		)	(700		)
Interest expense, net	(3,146		)	(4,154		)	(10,492		)	(12,559		)
Income before losses from equity method investment and provision for income tax	9,515			6,621			48,107			9,976
Losses from equity method investment	(291		)	(278		)	(726		)	(530		)
Income before provision for income taxes	9,224			6,343			47,381			9,446
Provision for income taxes	(3,014		)	(2,104		)	(15,948		)	(3,313		)
Net income	$	6,210		$	4,239		$	31,433		$	6,133
Net income per share:
Basic	$	0.15		$	0.10		$	0.77		$	0.14
Diluted	$	0.15		$	0.10		$	0.77		$	0.14
Weighted average shares outstanding:
Basic	40,318,741			42,999,654			40,836,000			43,556,876
Diluted	40,388,185			43,057,749			40,879,809			43,596,978

See accompanying notes to unaudited consolidated financial statements.

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Continental Building Products, Inc.

Consolidated Statements of Comprehensive Income

(unaudited)

	For the Three Months Ended						For the Nine Months Ended
	September 30, 2016			September 30, 2015			September 30, 2016		September 30, 2015
	(in thousands)
Net income	$	6,210		$	4,239		$	31,433	$	6,133
Foreign currency translation adjustment	(239		)	(1,430		)	884		(2,568		)
Net unrealized gain on derivatives, net of tax	(107		)	292			54		790
Other comprehensive (loss)/income	(346		)	(1,138		)	938		(1,778		)
Comprehensive income	$	5,864		$	3,101		$	32,371	$	4,355

See accompanying notes to unaudited consolidated financial statements.

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Continental Building Products, Inc.

Consolidated Balance Sheets

	September 30, 2016			December 31, 2015
	(unaudited)
	(in thousands)
Assets:
Cash and cash equivalents	$	34,758		$	14,729
Receivables, net	34,531			35,812
Inventories	26,965			27,080
Prepaid and other current assets	3,090			6,448
Total current assets	99,344			84,069
Property, plant and equipment, net	307,443			326,407
Customer relationships and other intangibles, net	85,105			94,835
Goodwill	119,945			119,945
Equity method investment	8,297			9,262
Debt issuance costs	704			450
Total Assets	$	620,838		$	634,968
Liabilities and Shareholders' Equity:
Liabilities:
Accounts payable	$	27,190		$	22,788
Accrued and other liabilities	12,626			12,334
Notes payable, current portion	1,746			—
Total current liabilities	41,562			35,122
Deferred taxes and other long-term liabilities	12,466			12,537
Notes payable, non-current portion	265,053			286,543
Total Liabilities	319,081			334,202
Equity:
Undesignated preferred stock, par value $0.001 per share; 10,000,000 shares authorized, no shares issued and outstanding at September 30, 2016 and December 31, 2015	—			—
Common stock, $0.001 par value per share; 190,000,000 shares authorized; 44,191,370 and 44,145,080 shares issued at September 30, 2016 and December 31, 2015, respectively; 39,992,339 and 41,750,031 shares outstanding at September 30, 2016 and December 31, 2015, respectively	44			44
Additional paid-in capital	321,865			319,817
Less: Treasury stock	(81,906		)	(48,479		)
Accumulated other comprehensive loss	(4,403		)	(5,341		)
Accumulated earnings	66,157			34,725
Total Equity	301,757			300,766
Total Liabilities and Equity	$	620,838		$	634,968

See accompanying notes to unaudited consolidated financial statements.

5

Continental Building Products, Inc.

Consolidated Statements of Cash Flows

(unaudited)

	For the Nine Months Ended
	September 30, 2016			September 30, 2015
	(in thousands)
Cash flows from operating activities:
Net income	$	31,433		$	6,133
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	35,656			38,931
Bad debt expense/(recovery)	15			(250		)
Amortization of debt issuance costs and debt discount	1,651			1,742
Loss on disposal of property, plant and equipment	41			—
Losses from equity method investment	726			530
Loss on debt extinguishment	5,802			—
Stock-based compensation	1,769			730
Deferred taxes	340			(491		)
Change in assets and liabilities:
Receivables	1,303			2,654
Inventories	242			(2,401		)
Prepaid expenses and other current assets	3,147			1,178
Accounts payable	2,942			1,955
Accrued and other current liabilities	502			275
Other long term liabilities	(477		)	(142		)
Net cash provided by operating activities	85,092			50,844
Cash flows from investing activities:
Capital expenditures	(4,797		)	(2,851		)
Software purchased or developed	(386		)	(880		)
Capital contributions to equity method investment	(259		)	(4		)
Distributions from equity method investment	498			797
Net cash used in investing activities	(4,944		)	(2,938		)
Cash flows from financing activities:
Capital contribution from Lone Star Funds	—			29,750
Proceeds from debt refinancing	275,000			—
Disbursements for debt refinancing	(271,988		)	—
Payments of financing costs	(4,424		)	—
Proceeds from exercise of stock options	20			—
Principal payments for First Lien Credit Agreement	(25,688		)	(35,000		)
Payments to repurchase common stock	(33,427		)	(40,035		)
Net cash used in financing activities	(60,507		)	(45,285		)
Effect of foreign exchange rates on cash and cash equivalents	388			(990		)
Net change in cash and cash equivalents	20,029			1,631
Cash, beginning of period	14,729			15,627
Cash, end of period	$	34,758		$	17,258

See accompanying notes to unaudited consolidated financial statements.

6

Continental Building Products, Inc.

Notes to the Unaudited Consolidated Financial Statements

1. BACKGROUND AND NATURE OF OPERATIONS

Description of Business

Continental Building Products, Inc. ("CBP", the "Company") is a Delaware corporation. Prior to the acquisition of the gypsum division of Lafarge North America Inc. (“Lafarge N.A.”) further described below, the Company had no operating activity.

The Company manufactures gypsum wallboard related products for commercial and residential buildings and houses. The Company operates a network of three highly efficient wallboard facilities, all located in the eastern United States and produces joint compound at one plant in the United States and at another plant in Canada.

The Acquisition

On June 24, 2013, Lone Star Fund VIII (U.S.), L.P., (along with its affiliates and associates, but excluding the Company and companies that it owns as a result of its investment activity, “Lone Star”), entered into a definitive agreement with Lafarge N.A. to purchase the assets of its North American gypsum division for an aggregate purchase price of approximately $703 million (the "Acquisition") in cash. The closing of the Acquisition occurred on August 30, 2013.

Initial Public Offering

On February 10, 2014, the Company completed the initial public offering of 11,765,000 shares of its common stock at an offering price of $14.00 per share (the "Initial Public Offering"). Net proceeds from the Initial Public Offering after underwriting discounts and commissions, but before other closing costs, were approximately $154 million. The net proceeds were used to pay a $2 million one-time payment to Lone Star in consideration for the termination of the Company’s asset advisory agreement with affiliates of Lone Star. The remaining $152 million of net proceeds and cash on hand of $6.1 million were used to repay the $155 million Second Lien Term Loan in full along with a prepayment premium of $3.1 million (See Note 12, Debt). In expectation of the Initial Public Offering, on February 3, 2014, the Company effected a 32,304 for one stock split of its common stock. The Company’s common stock trades on the New York Stock Exchange under the symbol "CBPX".

Secondary Public Offerings

On March 18, 2015, LSF8 Gypsum Holdings, L.P. ("LSF8"), an affiliate of Lone Star, sold 5,000,000 shares of the Company’s common stock at a price per share of $19.40. As a result of the sale, the aggregate beneficial ownership of Lone Star fell below 50% of the Company’s outstanding shares of common stock and the Company no longer qualified as a "Controlled Company" under the corporate governance standards of New York Stock Exchange. On May 15, 2015 and June 3, 2015, LSF8 sold an additional 4,600,000 and 361,747 shares of the Company’s common stock, respectively, at a price per share of $21.90. On September 16, 2015, LSF8 sold an additional 4,600,000 shares of the Company’s common stock at a price per share of $19.85. The decrease in ownership by Lone Star and its affiliates to below 50% and LSF8’s subsequent sales of common stock triggered an aggregate of $29.9 million in payments to certain officers and the estate of the Company’s former CEO under the LSF8 Gypsum Holdings, L.P. Long Term Incentive Plan, which was funded by LSF8 (See Note 10, Related Party Transactions).

On March 18, 2016, LSF8 sold its remaining 5,106,803 shares of the Company’s common stock at a price per share of $16.10. Following the March 18, 2016 transaction and the concurrent repurchase by the Company of 900,000 shares of Company’s common stock from LSF8, neither LSF8 nor any other affiliate of Lone Star held any shares of Company common stock. (See Note 15, Treasury Stock).

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2. SIGNIFICANT ACCOUNTING POLICIES

(a) Basis of Presentation

The accompanying consolidated financial statements for CBP have been prepared in accordance with accounting principles generally accepted in the United States ("U.S. GAAP"). The consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries. All intercompany transactions have been eliminated.

(b) Basis of Presentation for Interim Periods

Certain information and footnote disclosures normally included for the annual financial statements prepared in accordance with U.S. GAAP have been condensed or omitted for the interim periods presented. Management believes that the unaudited interim financial statements include all adjustments (which are normal and recurring in nature) necessary to present fairly the financial position of the Company and the results of operations and cash flows for the periods presented.

The results of operations for the periods presented are not necessarily indicative of the results that may be expected for the year ending December 31, 2016. Seasonal changes and other conditions can affect the sales volumes of the Company’s products. Therefore, the financial results for any interim period do not necessarily indicate the expected results for the year.

The financial statements should be read in conjunction with CBP’s audited consolidated financial statements and the notes thereto for the year ended December 31, 2015 included in the Company’s Annual Report on Form 10-K for the fiscal year then ended (the "2015 10-K"). The Company has continued to follow the accounting policies set forth in those financial statements.

(c) Recent Accounting Pronouncements

In May 2014, the Financial Accounting Standards Board (the "FASB") issued Accounting Standards Update ("ASU") No. 2014-9, Revenue from Contracts with Customers (Topic 606), which provides accounting guidance for all revenue arising from contracts with customers and affects all entities that enter into contracts to provide goods or services to their customers. In August 2015, the FASB issued ASU No. 2015-14, Revenue from Contracts with Customers (Topic 606): Deferral of the Effective Date, which defers the effective date of ASU No. 2014-9 for all entities by one year to annual reporting periods beginning after December 15, 2017. The ASU requires retroactive application on either a full or modified basis. Early application is permitted as of the original effective date on December 15, 2016. The Company is currently evaluating ASU 2014-9 to determine its impact on its consolidated financial statements and disclosures.

In August 2014, the FASB issued ASU No. 2014-15, Disclosure of Uncertainties about an Entity’s Ability to Continue as a Going Concern: Presentation of Financial Statements— Going Concern (Subtopic 205-40). This ASU defines when and how companies are required to disclose going concern uncertainties, which must be evaluated each interim and annual period. Specifically, it requires management to determine whether substantial doubt exists regarding the entity’s going concern presumption. Substantial doubt about an entity’s ability to continue as a going concern exists when relevant conditions and events, considered in the aggregate, indicate that it is probable that the entity will be unable to meet its obligations as they become due within one year after the date that the financial statements are issued (or available to be issued). If substantial doubt exists, certain disclosures are required; the extent of those disclosures depends on an evaluation of management’s plans (if any) to mitigate the going concern uncertainty. The provisions of ASU 2014-15 will be effective for annual periods ending after December 15, 2016, and to annual and interim periods thereafter. Early adoption is permitted. The ASU should be applied on a prospective basis. The Company believes the adoption of this ASU will not have a material impact on the Company’s disclosures.

In April 2015, the FASB issued ASU 2015-3, Interest—Imputation of Interest (Subtopic 835-30): Simplifying the Presentation of Debt Issuance Costs, which changes the presentation of debt issuance costs in financial statements. Under the ASU, an entity presents such costs in the balance sheet as a direct deduction from the related debt liability. Amortization of the costs is reported as interest expense. The Company adopted ASU 2015-3 during the first quarter of 2016. Upon adoption, the guidance was applied retroactively to all periods presented in the financial statements, therefore, prior period adjustments were made to the December 31, 2015 balance sheet items and related footnotes. The effect of these adjustments was to reduce prepaid and other current assets by $1.6 million, reduce debt issuance costs by $6.5 million and reduce notes payable by $8.1 million. The adoption of this ASU did not have a material impact on the Company’s results of operations.

In February 2016, the FASB issued ASU 2016-02, Leases. ASU 2016-02 requires lessees to recognize a lease liability and a right-of-use asset on the balance sheet. ASU 2016-02 is effective for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. The Company is currently evaluating ASU 2016-02 to determine its impact on its consolidated financial statements and disclosures.

8

In March 2016, the FASB issued ASU 2016-09, Compensation-Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting, which introduces targeted amendments intended to simplify the accounting for stock compensation. Specifically, the ASU requires all excess tax benefits and tax deficiencies (including tax benefits of dividends on share-based payment awards) to be recognized as income tax expense or benefit in the income statement. The tax effects of exercised or vested awards should be treated as discrete items in the reporting period in which they occur. An entity also should recognize excess tax benefits, and assess the need for a valuation allowance, regardless of whether the benefit reduces taxes payable in the current period. That is, off balance sheet accounting for net operating losses stemming from excess tax benefits would no longer be required and instead such net operating losses would be recognized when they arise. Existing net operating losses that are currently tracked off balance sheet would be recognized, net of a valuation allowance if required, through an adjustment to opening retained earnings in the period of adoption. Entities will no longer need to maintain and track an “APIC pool.” The ASU also requires excess tax benefits to be classified along with other income tax cash flows as an operating activity in the statement of cash flows. The amendments are effective for annual periods beginning after December 15, 2016. Early adoption is permitted. The Company is currently evaluating ASU 2016-09 to determine its impact on its consolidated financial statements and disclosures.

3. RECEIVABLES, NET

F3: Detail of Receivables, Net
	September 30, 2016			December 31, 2015
	(in thousands)
Trade receivables, gross	$	35,352		$	37,800
Allowance for cash discounts and doubtful accounts	(821		)	(1,988		)
Receivables, net	$	34,531		$	35,812

4. INVENTORIES

F4: Composition of Inventories
	September 30, 2016		December 31, 2015
	(in thousands)
Finished products	$	7,158	$	5,454
Raw materials	12,662		14,557
Supplies and other	7,145		7,069
Inventories	$	26,965	$	27,080

5. PROPERTY, PLANT AND EQUIPMENT, NET

F5: Property, Plant and Equipment Details
	September 30, 2016			December 31, 2015
	(in thousands)
Land	$	12,926		$	12,925
Buildings	112,589			112,121
Plant machinery	273,662			272,613
Mobile equipment	6,008			3,837
Construction in progress	8,832			6,812
Property, plant and equipment, at cost	414,017			408,308
Accumulated depreciation	(106,574		)	(81,901		)
Total property, plant and equipment, net	$	307,443		$	326,407

Depreciation expense was $8.5 million and $25.2 million for the three and nine months ended September 30, 2016, respectively, compared to $8.7 million and $26.5 million for the three and nine months ended September 30, 2015, respectively.

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6. CUSTOMER RELATIONSHIPS AND OTHER INTANGIBLES, NET

F6: Details of Customer Relationships and Other Intangibles, Net
	September 30, 2016			December 31, 2015
	(in thousands)
Customer relationships	$	116,410		$	116,073
Purchased and internally developed software	5,688			5,284
Trademarks	14,801			14,759
Customer relationships and other intangibles, at cost	136,899			136,116
Accumulated amortization	(51,794		)	(41,281		)
Customer relationships and other intangibles, net	$	85,105		$	94,835

Amortization expense was $3.4 million and $10.4 million for the three and nine months ended September 30, 2016, respectively, compared to $4.0 million and $12.4 million for the three and nine months ended September 30, 2015, respectively.

Customer relationship assets are amortized over a 15 year period using an accelerated method that reflects the expected future cash flows from the acquired customer-list intangible asset. Trademarks are amortized on a straight-line basis over the estimated useful life of 15 years.

Software development costs are amortized over a 3 year life with the expense recorded in selling and administrative expense. Amortization expense related to capitalized software was $0.4 million and $1.2 million for the three and nine months ended September 30, 2016, respectively, compared to $0.4 million and $1.1 million for the three and nine months ended September 30, 2015.

7. ACCRUED AND OTHER LIABILITIES

F7: Details of Accrued and Other Liabilities
	September 30, 2016		December 31, 2015
	(in thousands)
Employee-related costs	$	7,342	$	7,621
Income taxes	826		2,482
Other taxes	3,472		1,390
Other	986		841
Accrued and other liabilities	$	12,626	$	12,334

8. INCOME TAXES

The Company’s annual estimated effective tax rate is approximately 33.8%. The Company is subject to audit examinations at federal, state and local levels by tax authorities in those jurisdictions. In addition, the Canadian operations are subject to audit examinations at federal and provincial levels by tax authorities in those jurisdictions. The tax matters challenged by the tax authorities are typically complex; therefore, the ultimate outcome of any challenges would be subject to uncertainty. The Company has not identified any issues that did not meet the recognition threshold or would be impacted by the measurement provisions of the uncertain tax position guidance.

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9. COMMITMENTS AND CONTINGENCIES

The Company leases certain buildings and equipment. The Company’s facility and equipment leases may provide for escalations of rent or rent abatements and payment of pro rata portions of building operating expenses. Minimum lease payments are recognized on a straight-line basis over the minimum lease term. The total expenses under operating leases for the three and nine months ended September 30, 2016 was $1.0 million and $3.1 million, respectively, compared to $1.2 million and $3.3 million for the same periods in 2015, respectively. The Company also has non-capital purchase commitments that primarily relate to gas, gypsum, paper and other raw materials. The total amounts purchased under such commitments were $16.4 million and $49.5 million for the three and nine months ended September 30, 2016, respectively, compared to $17.6 million and $50.4 million for the three and nine months ended September 30, 2015, respectively.

F9: Future Minimum Lease Payments Due Under Noncancellable Operating Leases and Purchase Commitments by Year
	Future Minimum Lease Payments		Purchase Commitments
	(in thousands)
October 1, 2016 through December 31, 2016	$	363	$	15,264
2017	1,183		31,292
2018	616		29,463
2019	1,494		19,870
2020	—		14,185
2021	—		3,232
Thereafter	—		27,173
Total	$	3,656	$	140,479

Under certain circumstances, the Company provides letters of credit related to its natural gas and other supply purchases. As of September 30, 2016 and December 31, 2015, the Company had outstanding letters of credit of approximately $2.1 million and $3.0 million, respectively.

In March 2015, a group of homebuilders commenced a lawsuit against the Company and other U.S. wallboard manufacturers, alleging that such manufacturers had conspired to fix the price of wallboard in violation of antitrust and unfair competition laws. The complaint, as amended in October 2015, December 2015 and March 2016, also alleged that the manufacturers agreed to abolish the use of "job quotes" and agreed to restrict the supply of wallboard in order to support the allegedly collusive price increases. The case was transferred to the Eastern District of Pennsylvania for coordinated and consolidated pretrial proceedings with existing antitrust litigation in that district. The Company filed a motion to dismiss the case with respect to the Company in April 2016 and denied any wrongdoing of the type alleged in the amended complaint. In June 2016, the Court granted the Company's motion to dismiss the case with respect to the Company, with prejudice. In July 2016, the plaintiffs filed a Motion to Certify Order for Interlocutory Appeal seeking to challenge the Court's decision to grant the Company's motion to dismiss. In September 2016 the Court denied the plaintiffs' motion to Certify Order to Interlocutory appeal, and, based on the Court's order dismissing the case against the Company, the plaintiffs and the Company executed a joint stipulation dismissing the case against the Company, with prejudice. The dismissal of the case against Continental does not limit or restrict the right of the plaintiffs eventually to appeal the Court's order dismissing the case. The Company believes it has meritorious defenses to the allegations and does not believe the lawsuit will have a material adverse effect on its financial condition, results of operation or liquidity.

In July 2015, the Company received a grand jury subpoena directing it to provide certain documents in connection with an investigation being conducted by the Department of Justice regarding antitrust matters in the gypsum drywall industry. The Company cooperated fully with the Department of Justice in responding to the subpoena. In September of 2016, the Department of Justice advised the Company that the Company has no further obligations under the subpoena and that nothing further is required from the Company with respect to the subpoena. The Company does not believe the investigation will have a material adverse effect on its financial condition, results of operations or liquidity.

In the ordinary course of business, the Company executes contracts involving indemnifications standard in the industry. These indemnifications might include claims relating to any of the following: environmental and tax matters; intellectual property rights; governmental regulations and employment-related matters; customer, supplier, and other commercial contractual relationships; and financial matters. While the maximum amount to which the Company may be exposed under such agreements cannot be estimated, it is the opinion of management that these guarantees and indemnifications are not expected to have a materially adverse effect on the Company’s financial condition, results of operations or liquidity.

11

In the ordinary course of business, the Company is involved in certain legal actions and claims, including proceedings under laws and regulations relating to environmental and other matters. Because such matters are subject to many uncertainties and the outcomes are not predictable with assurance, the total liability for these legal actions and claims cannot be determined with certainty. When the Company determines that it is probable that a liability for environmental matters, legal actions or other contingencies has been incurred and the amount of the loss is reasonably estimable, an estimate of the costs to be incurred is recorded as a liability in the financial statements. As of September 30, 2016 and December 31, 2015, such liabilities were not expected to have a material adverse effect on the Company’s financial condition, results of operations or liquidity. While management believes its accruals for such liabilities are adequate, the Company may incur costs in excess of the amounts provided. Although the ultimate amount of liability that may result from these matters or actions is not ascertainable, any amounts exceeding the recorded accruals are not expected to have a material adverse effect on the Company’s financial condition, results of operations or liquidity.

10. RELATED PARTY TRANSACTIONS

LTIP Payments

In connection with the March, May and September 2015 secondary public offerings and concurrent May and September 2015 stock repurchases, certain officers of the Company and the estate of the Company’s former CEO earned incentive payments in the aggregate amount of approximately $29.9 million under the LSF8 Gypsum Holdings, L.P. Long-Term Incentive Plan ("LTIP"). LSF8 was responsible for funding any payments under the LTIP, including those referenced above. As these payments arose out of employment with the Company, the Company recognized the payments made to the officers and the estate as an expense. The funding of the LTIP payments by LSF8 was recorded as additional paid-in capital. The $29.9 million in LTIP payments were recorded as an expense to the Company, that were tax deductible, and capital contributions by LSF8 in the first, second and third quarters of 2015. No further payments will be made under the LTIP.

11. INVESTMENT IN SEVEN HILLS

The Company is a party with an unaffiliated third-party to a paperboard liner venture named Seven Hills Paperboard, LLC ("Seven Hills") that provides the Company with a continuous supply of high-quality recycled paperboard liner to meet its ongoing production requirements.

The Company has evaluated the characteristics of its investment and determined that Seven Hills would be deemed a variable interest entity, but that it does not have the power to direct the principal activities most impacting the economic performance of Seven Hills, and is thus not the primary beneficiary. As such, the Company accounts for this investment in Seven Hills under the equity method of accounting.

Paperboard liner purchased from Seven Hills was $11.1 million and $34.0 million for the three and nine months ended September 30, 2016, respectively, compared to $11.8 million and $34.2 million for the three and nine months ended September 30, 2015, respectively. As of September 30, 2016, the Company had certain purchase commitments for paper totaling $33.0 million through 2019.

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12. DEBT 

F12.1: Details of Debt
	September 30, 2016			December 31, 2015
	(in thousands)
First Lien Credit Agreement (a)	$	274,313		$	296,988
Less: Original issue discount (net of amortization)	(2,014		)	(2,372		)
Less: Debt issuance costs	(5,500		)	(8,073		)
Total debt	266,799			286,543
Less: Current portion of long-term debt	(1,746		)	—
Long-term debt	$	265,053		$	286,543
(a) As of September 30, 2016, the First Lien Credit Agreement, as amended and restated, had a maturity date of August 18, 2023 and an interest rate of LIBOR (with a 0.75% floor) plus 2.75%, compared to as of December 31, 2015, at which time the First Lien Credit Agreement had a maturity date of August 28, 2020 and an interest rate of LIBOR (with a 1.00% floor) plus 3.00%. The First Lien Credit Agreement was amended and restated in August 2016 as discussed below.

In connection with the Acquisition, the Company purchased certain assets from Lafarge N.A. with cash. In order to finance a portion of the consideration payable to Lafarge N.A., the Company and its subsidiary Continental Building Products Operating Company, LLC ("OpCo") entered into a first lien credit agreement with Credit Suisse AG, as administrative agent, Credit Suisse Securities (USA) LLC and RBC Capital Markets, as joint lead arrangers and joint bookrunners, and Royal Bank of Canada, as syndication agent (as amended on December 2, 2013, the "First Lien Credit Agreement") and a second lien credit agreement with Credit Suisse AG, as administrative agent, Credit Suisse Securities (USA) LLC and RBC Capital Markets, as joint lead arrangers and joint bookrunners, and Royal Bank of Canada, as syndication agent for borrowings of $320 million and $120 million, respectively, and drew $25 million under a $50 million revolving credit facility (the "Revolver") as part of the First Lien Credit Agreement. The available amount under the First Lien Credit Agreement was subsequently increased to $415.0 million (the "First Lien Term Loan"). In conjunction with the initial issuance of this debt, the Company incurred $15.3 million of debt issuance costs which were being amortized using the effective interest rate method or the straight-line method which approximates the effective interest rate method, over the estimated life of the related debt.

On August 18, 2016, the Company, Opco and Continental Building Products Canada Inc. and the lenders party thereto and Credit Suisse, as Administrative Agent, entered into an Amended and Restated Credit Agreement amending and restating the First Lien Credit Agreement (the "Amended and Restated Credit Agreement"). The Amended and Restated Credit Agreement provides for a $275 million senior secured first lien term loan facility and a $75 million senior secured revolving credit facility, which mature on August 18, 2023 and August 18, 2021, respectively. Related to this debt refinancing, the Company incurred $4.7 million of discount and debt issuance costs, of which $2.5 million was recorded in Other Expense, net on the Consolidated Statement of Operations and $2.2 million will be amortized over the term of the Amended and Restated Credit Agreement. Upon completion of this debt refinancing, the Company recognized an additional expense of $3.3 million related to losses resulting from debt extinguishment which is also reported in Other expense, net on the Consolidated Statement of Operations.

Interest under the First Lien Credit Agreement was floating. The interest rate spread over LIBOR, which has a 1% floor, was reduced by 50 basis points in May 2014, from 3.75% to 3.25%, as a result of the Company achieving a total leverage ratio of less than four times net debt to the trailing twelve months adjusted earnings before interest, depreciation and amortization, as of March 31, 2014, as calculated pursuant to the First Lien Credit Agreement. The margin applicable to the borrowing was further reduced in the third quarter 2014 by 25 basis points to 3.00% after the Company achieved a B2 rating with a stable outlook by Moody’s. The interest rate under the Amended and Restated Credit Agreement remains floating with a spread over LIBOR of 2.75% and floor of 0.75%.

The First Lien Credit Agreement was, and the Amended and Restated Credit Agreement is, secured by the underlying property and equipment of the Company. During the nine months ended September 30, 2016 and 2015, the Company pre-paid $25.7 million and $35.0 million, respectively, of principal payments. As of September 30, 2016, the annual effective interest rate on the Amended and Restated Credit Agreement including original issue discount and amortization of debt issuance costs was 4.0%.

There were no amounts outstanding under the Company's revolving credit facility as of September 30, 2016 or December 31, 2015. During the nine months ended September 30, 2016 the Company borrowed and repaid in full $22.0 million under the applicable revolving credit facility, compared to $10.0 million which the Company borrowed and repaid in full during the nine months ended September 30, 2015. Interest under the revolving credit facility under the Amended and Restated Credit Agreement (the "Revolver") is floating, based on LIBOR) plus 225 basis points. In addition, the Company pays a facility fee of

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50 basis points per annum on the total Revolver facility. Availability under the Revolver as of September 30, 2016, based on draws and outstanding letters of credit and absence of violations of covenants, was $72.9 million.

Total interest paid for the three and nine months ended September 30, 2016 was $2.6 million and $8.5 million, respectively, compared to $3.4 million and $10.3 million for the three and nine months ended September 30, 2015, respectively.

F12.2: Future Minimum Principal Payments Due Under the Credit Agreements
	Amount Due
	(in thousands)
2016	$	688
2017	2,750
2018	2,750
2019	2,750
2020	2,750
Thereafter	262,625

Under the terms of the Amended and Restated Credit Agreement, the Company is required to comply with certain covenants, including among others, the limitation of indebtedness, limitation on liens, and limitations on certain cash distributions. One single financial covenant governs all of the Company’s debt and only applies if the outstanding borrowings of the Revolver plus outstanding letters of credit are greater than $22.5 million as of the end of the quarter. The financial covenant is a total leverage ratio calculation, in which total debt less outstanding cash is divided by adjusted earnings before interest, depreciation and amortization. As the sum of outstanding borrowings under the Revolver and outstanding letters of credit were less than $22.5 million at September 30, 2016, the total leverage ratio of no greater than 5.0 per the financial covenant was not applicable at September 30, 2016.

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13. DERIVATIVE INSTRUMENTS

The Company uses derivative instruments to manage selected commodity price and interest rate exposures. The Company does not use derivative instruments for speculative trading purposes, and typically does not hedge beyond one year for commodity derivative instruments. Cash flows from derivative instruments are included in net cash provided by operating activities in the consolidated statements of cash flows.

Commodity Derivative Instruments

As of September 30, 2016, the Company had 630 thousand millions of British Thermal Units ("mmBTUs") in aggregate notional amount outstanding natural gas swap contracts to manage commodity price exposures. All of these contracts mature by March 31, 2017. The Company elected to designate these derivative instruments as cash flow hedges in accordance with FASB Accounting Standards Codification ("ASC") 815-20, Derivatives – Hedging. For derivative contracts designated as cash flow hedges, the effective portion of changes in the fair value of the derivative is recorded to accumulated other comprehensive income, and is reclassified to earnings when the underlying forecasted transaction affects earnings. The ineffective portion of changes in the fair value of the derivative is recorded in cost of goods sold. The net unrealized loss that remained in accumulated other comprehensive loss as of September 30, 2016 was $12,000 which is net of a tax amount of $6,000. No ineffectiveness was recorded on these contracts during the three months ended September 30, 2016 and 2015. The Company reassesses the probability of the underlying forecasted transactions occurring on a quarterly basis.

For the three and nine months ended September 30, 2016, approximately $0.2 million of losses, net of $59,000 of tax benefit and $0.1 million of gains, net of $25,000 of tax expense, respectively, were recognized in other comprehensive income for the commodity contracts. For the three and nine months ended September 30, 2016, the amount of loss reclassified from accumulated other comprehensive income into income was $0.1 million and $0.3 million, respectively. As of September 30, 2016, there was $45,000 recorded in other current liabilities and $27,000 recorded in other current assets. As of December 31, 2015, $0.3 million was recorded in other current liabilities and $0.2 million was recorded in other current assets.

Interest Rate Derivative Instrument

The Company had an interest rate cap on three month U.S. Dollar LIBOR of 2% for a portion of the principal amount outstanding under the First Lien Credit Agreement that expired March 31, 2016. The hedge was being accounted for as a cash flow hedge. Changes in the time value of the interest rate cap are reflected directly in earnings through “other expense, net” in non-operating income. The Company recorded nominal amounts in the three months ended March 31, 2016 and the nine months ended September 30, 2015.

In September 2016, the Company entered into interest rate swap agreements for a combined notional amount of $100.0 million with a term of 4 years, which swapped the floating LIBOR on a portion of the term loan under the Amended and Restated Credit Agreement to an average fixed rate of 1.323% and LIBOR floor of 0.75%. The Company elected to designate these interest rate swaps as cash flow hedges for accounting purposes. The net unrealized gain that remained in accumulated other comprehensive loss as of September 30, 2016 was $8,000 which is net of a tax amount of $4,000. For both the three and nine months ended September 30, 2016, approximately $8,000 of gains, net of of tax expense of $4,000 were recognized in other comprehensive income for the interest rate contracts. As of September 30, 2016, there was $0.1 million recorded in other current liabilities and $0.1 million was recorded in other current assets.

Counterparty Risk

The Company is exposed to credit losses in the event of nonperformance by the counterparties to the Company’s derivative instruments. As of September 30, 2016, the Company’s derivatives were in a $6,000 net liability position. All of the Company’s counterparties have investment grade credit ratings; accordingly, the Company anticipates that the counterparties will be able to fully satisfy their obligations under the contracts. The Company’s agreements outline the conditions upon which it or the counterparties are required to post collateral. As of September 30, 2016, the Company had no collateral posted with its counterparties related to the derivatives.

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14. SEGMENT REPORTING

Segment information is presented in accordance with ASC 280, Segment Reporting, which establishes standards for reporting information about operating segments. It also establishes standards for related disclosures about products and geographic areas. The Company’s primary reportable segment is wallboard which represented approximately 97.2% and 96.9% of the Company's revenues for the three and nine months ended September 30, 2016, respectively, compared to 96.7% and 96.7% of the Company’s revenues for the three and nine months ended September 30, 2015, respectively. This segment produces wallboard for the commercial and residential construction sectors. The Company also operates other business activities, primarily finishing products, which complement the Company’s full range of wallboard products.

Revenues from the major products sold to external customers include gypsum wallboard and finishing products.

The Company’s two geographic areas consist of the United States and Canada for which it reports net sales, fixed assets and total assets.

The Company evaluates operating performance based on profit or loss from operations before certain adjustments as shown below. Revenues are attributed to geographic areas based on the location of the assets producing the revenues. The Company did not provide asset information by segment as its Chief Operating Decision Maker does not use such information for purposes of allocating resources and assessing segment performance.

F14.1: Segment Reporting
	For the Three Months Ended						For the Nine Months Ended
	September 30, 2016			September 30, 2015			September 30, 2016			September 30, 2015
	(in thousands)
Net Sales:
Wallboard	$	111,322		$	104,624		$	332,514		$	300,936
Other	3,236			3,526			10,644			10,386
Total net sales	114,558			108,150			343,158			311,322
Operating income:
Wallboard	18,572			11,122			64,192			23,318
Other	(11		)	(64		)	147			(83		)
Total operating income	18,561			11,058			64,339			23,235
Adjustments:
Interest expense	(3,146		)	(4,154		)	(10,492		)	(12,559		)
Loss from equity investment	(291		)	(278		)	(726		)	(530		)
Other expense, net	(5,900		)	(283		)	(5,740		)	(700		)
Income before provision for income taxes	9,224			6,343			47,381			9,446
Depreciation and Amortization:
Wallboard	11,595			12,376			34,836			38,058
Other	273			285			820			873
Total depreciation and amortization	$	11,868		$	12,661		$	35,656		$	38,931

F14.2: Net Sales By Geographic Region
	For the Three Months Ended				For the Nine Months Ended
	September 30, 2016		September 30, 2015		September 30, 2016		September 30, 2015
	(in thousands)
United States	$	104,704	$	99,956	$	316,040	$	284,707
Canada	9,854		8,194		27,118		26,615
Net sales	$	114,558	$	108,150	$	343,158	$	311,322

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F14.3: Assets By Geographic Region
	Fixed Assets				Total Assets
	September 30, 2016		December 31, 2015		September 30, 2016		December 31, 2015
	(in thousands)
United States	$	304,352	$	323,361	$	601,906	$	617,878
Canada	3,091		3,046		18,932		17,090
Total	$	307,443	$	326,407	$	620,838	$	634,968

15. TREASURY STOCK

On May 15, 2015, the Company repurchased 913,200 shares of its common stock from LSF8 in a private transaction at a price per share of $21.90, or an aggregate of approximately $20.0 million, pursuant to a stock purchase agreement dated May 11, 2015. On September 16, 2015, the Company repurchased an additional 1,007,500 shares of its common stock from LSF8 in a private transaction at a price per share of $19.85, or an aggregate of approximately $20.0 million, pursuant to a stock purchase agreement dated September 10, 2015. On March 18, 2016, the Company repurchased an additional 900,000 shares of its common stock from LSF8 in a private transaction at a price per share of $16.10, or an aggregate of approximately $14.5 million, pursuant to a stock purchase agreement dated March 14, 2016.

On November 4, 2015, the Company announced that the Board of Directors approved a new stock repurchase program authorizing the Company to repurchase up to $50.0 million of its common stock, at such times and prices as determined by management as market conditions warrant, through December 31, 2016. Pursuant to this authorization, the Company has repurchased shares of its common stock on the open market and in the March 2016 private transaction with LSF8 described above. On August 3, 2016, the Company announced the Board of Directors had approved an expansion of its stock repurchase program by $50.0 million, increasing the aggregate authorization from up to $50.0 million to up to $100.0 million. The program was also extended from the end of 2016 to the end of 2017.

All repurchased shares are held in treasury, reducing the number of shares of common stock outstanding and used in the Company’s earnings per share calculation.

F15: Treasury Stock Activity
	September 30, 2016					September 30, 2015
	Shares	Amount (a)		Average Share Price (a)		Shares	Amount (a)		Average Share Price (a)
	(in thousands, except share data)
For the Three Months Ended:
Beginning Balance	3,678,188	$	70,489	$	19.16	915,364	$	20,036	$	21.89
Repurchases on open market	520,843	11,417		21.92		—	—		—
Repurchase from LSF8 in private transaction	—	—		—		1,007,500	19,999		19.85
Ending Balance	4,199,031	$	81,906	$	19.51	1,922,864	$	40,035	$	20.82
For the Nine Months Ended:
Beginning Balance	2,395,049	$	48,479	$	20.24	—	$	—	$	—
Repurchases on open market	903,982	18,937		20.95		2,164	37		17.20
Repurchase from LSF8 in private transaction	900,000	14,490		16.10		1,920,700	39,998		20.82
Ending Balance	4,199,031	$	81,906	$	19.51	1,922,864	$	40,035	$	20.82
(a) Includes commissions paid for repurchases on open market.

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16. SHARE-BASED COMPENSATION

For the three and nine months ended September 30, 2016, the Company recognized share-based compensation expenses of $0.6 million and $1.8 million, respectively, compared to $0.2 million and $0.6 million for the three and nine months ended September 30, 2015, respectively.

17. EARNINGS PER SHARE

The following table shows the weighted average number of shares used in computing earnings per share and the effect on the weighted average number of shares of potentially dilutive securities. Potential dilutive common stock has no effect on income available to common stockholders.

F17: Basic and Dilutive Earnings Per Share
	For the Three Months Ended				For the Nine Months Ended
	September 30, 2016		September 30, 2015		September 30, 2016		September 30, 2015
	(dollars in thousands, except for per share amounts)
Net income	$	6,210	$	4,239	$	31,433	$	6,133
Weighted average number of shares outstanding- basic	40,318,741		42,999,654		40,836,000		43,556,876
Effect of dilutive securities:
Restricted stock awards	9,926		12,547		8,132		11,489
Restricted stock units	41,575		9,828		24,384		1,056
Performance restricted stock units	—		5,349		—		—
Stock options	17,943		30,371		11,293		27,557
Total effect of dilutive securities	69,444		58,095		43,809		40,102
Weighted average number of shares outstanding - diluted	40,388,185		43,057,749		40,879,809		43,596,978
Basic earnings per share	$	0.15	$	0.10	$	0.77	$	0.14
Diluted earnings per share	$	0.15	$	0.10	$	0.77	$	0.14

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18. FAIR VALUE DISCLOSURES

U.S. GAAP provides a framework for measuring fair value, establishes a fair value hierarchy of the valuation techniques used to measure the fair value and requires certain disclosures relating to fair value measurements. Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants in a market with sufficient activity.

The fair value hierarchy ranks the quality and reliability of the information used to determine fair values. The hierarchy gives highest priority to unadjusted quoted prices in active markets for identical assets or liabilities and the lowest priority to unobservable inputs. The standard describes the following three levels used to classify fair value measurements:

Level 1	Observable inputs such as quoted prices (unadjusted) in active markets for identical assets or liabilities that a Company has the ability to access;
Level 2	Inputs, other than the quoted market prices included in Level 1, which are observable for the asset or liability, either directly or indirectly; and
Level 3	Unobservable inputs for the asset or liability which is typically based on an entity’s own assumptions when there is little, if any, related market data available.

The Company evaluates assets and liabilities subject to fair value measurements on a recurring and non-recurring basis to determine the appropriate level to classify them for each reporting period. This determination requires significant judgments to be made by the Company. The fair values of receivables, accounts payable, accrued costs and other current liabilities approximate the carrying values as a result of the short-term nature of these instruments.

The Company estimates the fair value of its debt by discounting the future cash flows of each instrument using estimated market rates of debt instruments with similar maturities and credit profiles. These inputs are classified as Level 3 within the fair value hierarchy. As of September 30, 2016 and December 31, 2015, the carrying value reported in the consolidated balance sheet for the Company’s notes payable approximated its fair value.

The only assets or liabilities the Company had at September 30, 2016 that are recorded at fair value on a recurring basis are the natural gas hedges and interest rate swaps. The natural gas hedges had a negative fair value of $12,000 as of September 30, 2016, net of tax amount of $6,000, compared to a negative fair value of $0.1 million, net of tax amount of $30,000 as of December 31, 2015. Interest rate swaps had a positive fair value of $8,000 as of September 30, 2016, net of tax amount of less than $4,000. Both the natural gas hedges and interest rate swaps are classified within Level 2 of the fair value hierarchy as they are valued using third party pricing models which contain inputs that are derived from observable market data. Generally, the Company obtains its Level 2 pricing inputs from its counterparties. Substantially all of these assumptions are observable in the marketplace throughout the full term of the instrument, can be derived from observable data or are supported by observable levels at which transactions are executed in the marketplace.

Assets and liabilities that are measured at fair value on a non-recurring basis include intangible assets and goodwill. These items are recognized at fair value when they are considered to be impaired.

There were no fair value adjustments for assets and liabilities measured on a non-recurring basis. The Company discloses fair value information about financial instruments for which it is practicable to estimate that value.

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Item 2. Management's Discussion and Analysis of Financial Condition and Results of Operations

The following discussion and analysis is intended to help the reader understand our business, financial condition, results of operations, liquidity and capital resources. You should read this discussion in conjunction with "Risk Factors," "Forward-Looking Statements," "Selected Historical Financial and Operating Data," and our financial statements and related notes included in our Annual Report on Form 10-K for fiscal year 2015 filed with the Securities and Exchange Commission on February 23, 2016 (the "2015 10-K") and elsewhere in this Quarterly Report on Form 10-Q, as applicable.

Overview

We are a leading manufacturer of gypsum wallboard and complementary finishing products in the eastern United States and eastern Canada. We operate highly efficient and automated manufacturing facilities that produce a full range of gypsum wallboard products for our diversified customer base. We sell our products in the new residential, repair and remodel, or R&R, and commercial construction markets. We believe our operating efficiencies, favorable plant locations, manufacturing expertise and focus on delivering superior customer service position us to benefit from an anticipated increase in gypsum wallboard demand as the housing market recovers from historic lows.

Our primary reportable segment is wallboard, which accounted for approximately 97% of our net sales in both the three and nine months ended September 30, 2016, respectively, compared to 97% for both the three and nine months ended September 30, 2015. We also operate other business activities, primarily finishing products, which complement our full range of wallboard products. See Part I, Item 1, Financial Information - Notes to Consolidated Financial Statements, Note 14, Segment Reporting.

Paper and synthetic gypsum are our principal wallboard raw materials. Paper constitutes our most significant input cost and the most significant driver of our variable manufacturing costs. Energy costs, consisting of natural gas and electricity, are the other key input costs. In total, manufacturing cash costs represented 64% and 62% of our costs of goods sold for the three and nine months ended September 30, 2016, respectively, compared to 61% for the same periods in 2015. Depreciation and amortization represented 13% and 14% of our costs of goods sold for the three and nine months ended September 30, 2016, respectively, compared to 16% of our costs of goods sold for both the three and nine months ended September 30, 2015. Distribution costs to deliver product to our customers represented the remaining portion of our costs of goods sold, or approximately 23% and 24% of our costs of goods sold for the three and nine months ended September 30, 2016, respectively, compared to 23% of our costs of goods sold for both the three and nine months ended September 30, 2015, respectively.

Variable manufacturing costs, including inputs such as paper, gypsum, natural gas, and other raw materials, represented 67% and 68% of our manufacturing cash costs for the three and nine months ended September 30, 2016, respectively, compared to 69% and 67% for the same periods in 2015, respectively. Fixed production costs excluding depreciation and amortization consisted of labor, maintenance, and other costs that represented 33% and 32% of our manufacturing cash costs for the three and nine months ended September 30, 2016, respectively, compared to 31% and 33% of our manufacturing cash costs for the three and nine months ended September 30, 2015, respectively.

We currently purchase most of our paperboard liner from Seven Hills, a joint venture between the Company and WestRock Company, formerly known as RockTenn Company ("WestRock"). Under the agreement with Seven Hills, the price of paper adjusts based on changes in the underlying costs of production of the paperboard liner, of which the two most significant are recovered waste paper and natural gas. The largest waste paper source used by the operation is old cardboard containers (known as OCC). Seven Hills has the capacity to supply us with approximately 75% of our paper needs at our full capacity utilization and most of our needs at current capacity utilization on market-based pricing terms that we consider favorable. We believe we can also purchase additional paper on the spot market at competitive prices. See Part I, Item 1, Financial Information - Notes to Consolidated Financial Statements, Note 11, Investment in Seven Hills.

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Results of Operations

Table M1: Results of Operations
	For the Three Months Ended						For the Nine Months Ended
	September 30, 2016			September 30, 2015			September 30, 2016			September 30, 2015
	(dollars in thousands, except mill net)
Net Sales	$	114,558		$	108,150		$	343,158		$	311,322
Costs, expenses and other income:
Cost of goods sold	86,756			78,151			250,455			231,342
Selling and administrative	9,241			9,008			28,364			26,799
Long Term Incentive Plan funded by Lone Star	—			9,933			—			29,946
Total costs and operating expenses	95,997			97,092			278,819			288,087
Operating income	18,561			11,058			64,339			23,235
Other expense, net	(5,900		)	(283		)	(5,740		)	(700		)
Interest expense, net	(3,146		)	(4,154		)	(10,492		)	(12,559		)
Income before losses from equity method investment and provision for income taxes	9,515			6,621			48,107			9,976
Losses from equity method investment	(291		)	(278		)	(726		)	(530		)
Income before provision for income taxes	9,224			6,343			47,381			9,446
Provision for income taxes	(3,014		)	(2,104		)	(15,948		)	(3,313		)
Net income	$	6,210		$	4,239		$	31,433		$	6,133
Other operating data:
Capital expenditures and software purchased or developed	$	3,062		$	1,444		$	5,183		$	3,731
Wallboard sales volume (million square feet)	634			567			1,894			1,603
Mill net sales price (1)	$	144.34		$	153.05		$	144.61		$	155.68

(1) Mill net sales price represents average selling price per thousand square feet net of freight and delivery costs.

Three and Nine Months Ended September 30, 2016 Compared to Three and Nine Months Ended September 30, 2015

Net Sales. Net sales increased by $6.4 million, up5.9% from $108.2 million for the three months ended September 30, 2015, to $114.6 million for the three months ended September 30, 2016. The increase was primarily attributable to $12.4 million favorable impact of higher wallboard volumes driven by higher demand in the United States. The decrease in the average net selling price for gypsum wallboard at constant exchange rates had a $5.7 million unfavorable impact on net sales. Our non-wallboard products had a $0.3 million negative impact and foreign currency had a nominal positive effect on net sales.

Net sales increased by $31.8 million, up10.2% from $311.3 million for the nine months ended September 30, 2015, to $343.2 million for the nine months ended September 30, 2016. The increase was primarily attributable to $54.7 million favorable impact of higher wallboard volumes driven by higher demand in the United States. The decrease in the average net selling price for gypsum wallboard at constant exchange rates had a $21.9 million unfavorable impact on net sales. Our non-wallboard products had a $0.5 million positive impact and foreign currency had a combined unfavorable impact of $1.5 million.

Cost of Goods Sold. Cost of goods sold increased$8.6 million, up11.0% from $78.2 million for the three months ended September 30, 2015, to $86.8 million for the three months ended September 30, 2016. Higher wallboard volumes increased freight costs and input costs by $2.1 million and $3.6 million, respectively. In addition, labor and maintenance costs increased collectively by $2.8 million, primarily due to higher volumes. Higher wallboard input costs per thousand square feet ("MSF"), primarily related to paper and gypsum, resulted in a $1.1 million increase. Other manufacturing costs increased $0.3 million. These increases were partially offset by a decrease of amortization and depreciation costs of $0.8 million and a decrease in non-wallboard manufacturing costs of $0.4 million.

Cost of goods sold increased$19.1 million, up8.3% from $231.3 million for the nine months ended September 30, 2015, to $250.5 million for the nine months ended September 30, 2016. Higher wallboard volumes increased freight costs and input costs by $9.3 million and $16.1 million, respectively. In addition, labor and maintenance costs increased collectively by $4.3 million primarily due to higher volumes. Lower wallboard input costs per MSF resulted in a $4.2 million decrease. Other

21

manufacturing costs decreased $0.4 million. Amortization and depreciation costs decreased $3.3 million and non-wallboard manufacturing costs decreased $0.1 million.

Selling and Administrative Expense. Selling and administrative expense increased$0.2 million, up2.6% to $9.2 million for the three months ended September 30, 2016 compared to $9.0 million for the three months ended September 30, 2015. This increase was driven by a $0.3 million increase in stock compensation expense, offset by a net decrease of other selling and administrative expense of $0.1 million.

Selling and administrative expense increased$1.6 million, up5.8% to $28.4 million for the nine months ended September 30, 2016 compared to $26.8 million for the nine months ended September 30, 2015. This increase was primarily driven by a $1.0 million increase in stock compensation expense, a $0.3 million increase in bonus expense and a $0.3 million increase in bad debt expense for the nine months ended September 30, 2016, compared to the same period 2015.

Long Term Incentive Plan Funded by Lone Star. Under the LSF8 Gypsum Holdings, L.P. Long Term Incentive Plan ("LTIP"), certain of our officers and the estate of our former CEO were eligible to receive payments from LSF8 Gypsum Holdings, L.P., an affiliate of Lone Star Funds ("LSF8"), in the event of certain monetization events described in greater detail in the 2015 10‑K. LSF8 was responsible for funding any payments under the LTIP. The secondary public offering in March 2015 triggered a monetization event for the first time and resulted in the payment of $4.2 million and the secondary public offering in May and September 2015 resulted in aggregate payments of $15.8 million and $9.9 million, respectively. As these payments arose out of employment with the Company, the $9.9 million and $29.9 million expense was recorded on the Company's books for the three and nine months ended September 30, 2015, respectively, and was also deductible for tax purposes. The funding of LTIP was recorded as capital contributions from LSF8 in the statement of cash flows under financing activities. No payments were made under the LTIP in the three months and nine months ended September 30, 2016 and no further payments will be made under the LTIP.

Operating Income. Operating income of $18.6 million for the three months ended September 30, 2016increased by $7.5 million from operating income of $11.1 million for the three months ended September 30, 2015. The difference was driven mostly by $6.4 million higher net sales and the absence of any LTIP expense in the current period, as compared to $9.9 million in LTIP expense in 2015, partly offset by $8.6 million higher costs of goods sold and $0.2 million higher selling and administrative expense.

Operating income of $64.3 million for the nine months ended September 30, 2016increased by $41.1 million from operating income of $23.2 million for the nine months ended September 30, 2015. The difference was driven mostly by the $31.8 million higher net sales and the absence of any LTIP expense in the current period, as compared to $29.9 million in LTIP expense in 2015, partly offset by $19.1 million higher costs of goods sold and $1.6 million higher selling and administrative expense.

Other Expense, Net.  Other expense, net, was $5.9 million for the three months ended September 30, 2016, an increase in expenses from the $0.3 million other expense in the same period of 2015. The increase was primarily due to $5.8 million in additional expenses associated with the debt refinancing in the third quarter 2016.

For the nine months ended September 30, 2016, other expense, net, was a net expense of $5.7 million, an increase in expenses from the $0.7 million expense in the prior year period. The increase was primarily due to $5.8 million in additional expenses associated with the debt refinancing in the the third quarter 2016.

Interest Expense, Net. Interest expense was $3.1 million for the three months ended September 30, 2016, a decrease from $4.2 million for the three months ended September 30, 2015, reflecting lower average outstanding borrowings during the third quarter of 2016 compared to the same period in 2015 and the lower interest rate following the debt refinancing in August 2016.

Interest expense was $10.5 million for the nine months ended September 30, 2016, a decrease from $12.6 million for the nine months ended September 30, 2015, reflecting lower average outstanding borrowings during the first nine months of 2016 compared to the same period in 2015 and the lower interest rate following the debt refinancing in August 2016. See Part I, Item 1, Financial Information - Notes to Consolidated Financial Statements, Note 12, Debt for further details on the refinancing.

Provision for Income Taxes. Provision for income taxes was $3.0 million for the three months ended September 30, 2016, compared to $2.1 million in the prior year period. Higher provision for income taxes was driven by higher pretax income.

Provision from income taxes was $15.9 million for the nine months ended September 30, 2016, compared to a provision for income taxes of $3.3 million for the nine months ended September 30, 2015. Higher provision for income taxes was driven by higher pretax income.

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Non-GAAP Measures

EBITDA and Adjusted EBITDA have been presented in this Quarterly Report on Form 10-Q as supplemental measures of financial performance that are not required by, or presented in accordance with, GAAP. We have presented EBITDA and Adjusted EBITDA as supplemental performance measures because we believe that they facilitate a comparative assessment of our operating performance relative to our performance based on our results under GAAP while isolating the effects of some items that vary from period to period without any correlation to core operating performance and eliminate certain charges that we believe do not reflect our operations and underlying operational performance. Management also believes that EBITDA and Adjusted EBITDA are useful to investors because they allow investors to view our business through the eyes of management and the board of directors, facilitating comparison of results across historical periods.

EBITDA and Adjusted EBITDA may not be comparable to similarly titled measures of other companies because other companies may not calculate EBITDA and Adjusted EBITDA in the same manner as we do. EBITDA and Adjusted EBITDA are not measurements of our financial performance under GAAP and should not be considered in isolation or as alternatives to operating income determined in accordance with GAAP or any other financial statement data presented as indicators of financial performance or liquidity, each as calculated and presented in accordance with GAAP.

Table M2: Reconciliation of GAAP Net Income to Non-GAAP EBITDA and Adjusted EBITDA
	For the Three Months Ended				For the Nine Months Ended
	September 30, 2016		September 30, 2015		September 30, 2016		September 30, 2015
	(in thousands)
Net income	$	6,210	$	4,239	$	31,433	$	6,133
Adjustments:
Other expense, net	5,900		283		5,740		700
Interest expense, net	3,146		4,154		10,492		12,559
Losses from equity method investment	291		278		726		530
Provision for income taxes	3,014		2,104		15,948		3,313
Depreciation and amortization	11,868		12,661		35,656		38,931
EBITDA—Non-GAAP Measure	30,429		23,719		99,995		62,166
Long Term Incentive Plan Funded by Lone Star (a)	—		9,933		—		29,946
Adjusted EBITDA—Non-GAAP Measure	$	30,429	$	33,652	$	99,995	$	92,112

(a) Represents expense recognized pursuant to the LTIP funded by LSF8, an affiliate of Lone Star.

23

Liquidity and Capital Resources

Our primary sources of liquidity are cash on hand, cash from operations, and borrowings under the debt financing arrangements. We believe these sources will be sufficient to fund our planned operations and capital expenditures. See Part I, Item 1, Financial Information - Notes to Unaudited Consolidated Financial Statements, Note 12, Debt, for a more detailed discussion of our debt financing arrangements.

Table M3: Net Change in Cash and Cash Equivalents
	For the Nine Months Ended
	September 30, 2016			September 30, 2015
	(in thousands)
Net cash provided by operating activities	$	85,092		$	50,844
Net cash used in investing activities	(4,944		)	(2,938		)
Net cash used in financing activities	(60,507		)	(45,285		)
Effect of foreign exchange rates on cash and cash equivalents	388			(990		)
Net change in cash and cash equivalents	$	20,029		$	1,631

Net Cash Provided By Operating Activities

Net cash provided by operating activities for the nine months ended September 30, 2016 was $85.1 million, compared to $50.8 million for the nine months ended September 30, 2015. Higher cash flows from operating activities for the nine months ended September 30, 2016, compared to the same period 2015, were primarily the result of a $31.8 million increase in net sales and a $29.9 million LTIP payment in the nine months ended September 30, 2015.

Net Cash Used In Investing Activities

Net cash used in investing activities for the nine months ended September 30, 2016 was $4.9 million, compared to $2.9 million for the nine months ended September 30, 2015. The investing activities for the nine months ended September 30, 2016 and 2015 primarily reflect an aggregate of $5.2 million and $3.7 million, respectively, in capital expenditures and software purchased or developed, partially offset by distributions and contributions related to our equity investment in Seven Hills.

Net Cash Used In Financing Activities

Net cash used in financing activities for the nine months ended September 30, 2016 was $60.5 million, compared to $45.3 million for the nine months ended September 30, 2015. During the nine months ended September 30, 2016 and September 30, 2015, the Company deployed $33.4 million and $40.0 million, respectively, to repurchase common stock. The Company also deployed $25.7 million and $35.0 million during the nine months ended September 30, 2016 and September 30, 2015, respectively, to make payments on its long-term debt. For the nine months ended September 30, 2015, the Company received $29.8 million of capital contributions from Lone Star. No contributions were received for the nine months ended September 30, 2016.

Critical Accounting Policies and Estimates

The preparation of our financial statements requires us to make estimates, judgments and assumptions that affect the reported amounts of assets, liabilities, revenues and expenses during the periods presented. Our 2015 10-K includes a summary of the critical accounting policies we believe are the most important to aid in understanding our financial results. There have been no changes to those critical accounting policies that have had a material impact on our reported amounts of assets, liabilities, revenues or expenses during the nine months ended September 30, 2016.

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Forward-Looking Statements

This Quarterly Report on Form 10-Q contains “forward-looking statements.” These forward-looking statements are included throughout this Quarterly Report on Form 10-Q, and relate to matters such as our industry, business strategy, goals and expectations concerning our market position, future operations, margins, profitability, capital expenditures, liquidity, capital resources and other financial and operating information. We have used the words "anticipate," "assume," "believe," "contemplate," "continue," "could," "estimate," "expect," "future," "intend," "may," "plan," "potential," "predict," "project," "seek," "should," "target," "will" and similar terms and phrases to identify forward-looking statements in this Quarterly Report on Form 10-Q. All of our forward-looking statements are subject to risks and uncertainties that may cause actual results to differ materially from those that we are expecting, including:

• cyclicality in our markets, especially the new residential construction market;

• the highly competitive nature of our industry and the substitutability of competitors’ products;

• disruptions in our supply of synthetic gypsum due to regulatory changes or coal-fired power plants ceasing or reducing operations or switching to natural gas;

• changes to environmental and safety laws and regulations requiring modifications to our manufacturing systems;

• potential losses of customers;

• changes in affordability of energy and transportation costs;

• material disruptions at our facilities or the facilities of our suppliers;

• disruptions to our supply of paperboard liner, including termination of the WestRock contract;

• changes in, cost of compliance with or the failure or inability to comply with governmental laws and regulations, in particular environmental regulations;

• our involvement in legal and regulatory proceedings;

• our ability to attract and retain key management employees;

• disruptions in our information technology systems;

• labor disruptions;

• seasonal nature of our business;

• the effectiveness of our internal controls over financial reporting;

• increased costs and demands on management as a public company;

• our limited public company operating experience; and

• additional factors discussed under the sections captioned "Risk Factors," "Management’s Discussion and Analysis of Financial Condition and Results of Operations" and "Business."

The forward-looking statements contained in this Quarterly Report on Form 10-Q are based on historical performance and management’s current plans, estimates and expectations in light of information currently available to us and are subject to uncertainty and changes in circumstances. There can be no assurance that future developments affecting us will be those that we have anticipated. Actual results may differ materially from these expectations due to changes in global, regional or local political, economic, business, competitive, market, regulatory and other factors, many of which are beyond our control. We believe that these factors include those described in “Risk Factors.” Should one or more of these risks or uncertainties materialize, or should any of our assumptions prove to be incorrect, our actual results may vary in material respects from what we may have expressed or implied by these forward-looking statements. We caution that you should not place undue reliance on any of our forward-looking statements. Any forward-looking statement made by us in this Quarterly Report on Form 10-Q speaks only as of the date on which we make it. Factors or events that could cause our actual results to differ may emerge from time to time, and it is not possible for us to predict all of them. We undertake no obligation to publicly update any forward-looking statement, whether as a result of new information, future developments or otherwise, except as may be required by applicable securities laws.

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Item 3. Quantitative and Qualitative Disclosures About Market Risk

In the normal course of business, we are exposed to financial risks such as changes in interest rates, foreign currency exchange rates, commodity price risk associated with our input costs and counterparty risk. We use derivative instruments to manage selected commodity price and interest rate exposures.

Interest Rate Risk

Our exposure to market risk for changes in interest rates relates primarily to our outstanding debt, and cash and cash equivalents. As of September 30, 2016, we had $34.8 million in cash and cash equivalents. The interest expense associated with the term loan and revolving credit facility under the Amended and Restated Credit Agreement will vary with market rates.

Our exposure to market risk for changes in interest rates related to our outstanding debt is somewhat mitigated as the term loan under the Amended and Restated Credit Agreement have a LIBOR floor of 0.75%. A rise of interest rate levels to above the 0.75% floor would be required to increase our interest expense and a reduction in interest rates would have no impact on our interest expense as the LIBOR specified the calculation of interest in the third quarter 2016 was below the floor. A hypothetical 1.00% increase in interest rates would have increased interest expense by $0.5 million for the three months ended September 30, 2016. We based this sensitivity calculation on the three month LIBOR rate of 0.63% as of June 28, 2016 in accordance with the measurement date specified in the Amended and Restated Credit Agreement.

As of September 30, 2016, the Company had interest rate swaps with a combined notional amount of $100.0 million and with a 4 years term, which swapped the floating interest rate on a portion of the term loan under the Amended and Restated Credit Agreement to an average fixed rate of 1.323%. The fair value of these interest rate swaps was $12,000 as of September 30, 2016.

The return on our cash equivalents balance was less than one percent. Therefore, although investment interest rates may continue to decrease in the future, the corresponding impact to our interest income, and likewise to our income and cash flow, would not be material.

Foreign Currency Risk

Approximately 8.6% and 7.9% of our net sales for the three and nine months ended September 30, 2016, respectively, were in Canada, compared to 7.6% and 8.5% of our net sales for the three and nine months ended September 30, 2015, respectively. As a result, we are exposed to movements in foreign exchange rates between the U.S. dollar and Canadian dollar. We estimate that a 1% change in the exchange rate between the U.S. and Canadian currencies would impact net sales by approximately $0.1 million based on three months ended September 30, 2016. This may differ from actual results depending on the level of sales volumes in Canada. During the reported periods we did not use foreign currency hedges to manage this risk.

Commodity Price Risk

Some of our key production inputs, such as paper and natural gas, are commodities whose prices are determined by the market’s supply and demand for such products. Price fluctuations on our key input costs have a significant effect on our financial performance. The markets for most of these commodities are cyclical and are affected by factors such as global economic conditions, changes in or disruptions to industry production capacity, changes in inventory levels and other factors beyond our control. As of September 30, 2016, the Company had six natural gas swap contracts for a portion of natural gas usage. The contracts mature October 31, 2016, November 30, 2016, December 31, 2016 and March 31, 2017. Other than the natural gas swap contracts described above, we did not manage commodity price risk with derivative instruments. We may in the future enter into derivative financial instruments from time to time to manage our exposure related to these market risks.

Counterparty Risk

The Company is exposed to credit losses in the event of nonperformance by the counterparties to the Company’s derivative instruments. All of the Company’s counterparties have investment grade credit ratings; accordingly, the Company anticipates that the counterparties will be able to fully satisfy their obligations under the contracts. The Company’s agreements outline the conditions upon which it or the counterparties are required to post collateral. As of September 30, 2016, the Company had no collateral posted with its counterparties related to the derivatives.

Seasonality

Sales of our wallboard products are seasonal, similar to many building products, in that sales are generally slightly higher from spring through autumn when construction activity is greatest in our markets.

26

Item 4. Controls and Procedures

Disclosure Controls and Procedures.

Management carried out an evaluation, under the supervision and with the participation of the Company’s Chief Executive Officer and Chief Financial Officer, of the effectiveness of the Company’s disclosure controls and procedures (as defined in Rule 13a-15(e) of the Exchange Act of 1934, as amended (the "Exchange Act")) as of September 30, 2016. Based on that evaluation, the Chief Executive Officer and the Chief Financial Officer have concluded that the Company’s disclosure controls and procedures were effective as of September 30, 2016.

The design of any system of control is based upon certain assumptions about the likelihood of future events, and there can be no assurance that any design will succeed in achieving its stated objectives under all future events, no matter how remote, or that the degree of compliance with the policies or procedures may not deteriorate. Because of their inherent limitations, disclosure controls and procedures may not prevent or detect all misstatements. Accordingly, even effective disclosure controls and procedures can only provide reasonable assurance of achieving their control objectives.

Changes in Internal Control Over Financial Reporting.

There were no changes in the Company's internal control over financial reporting (as defined in Rule 13a-15(f) of the Exchange Act) that occurred during the three months ended September 30, 2016 that have materially affected, or are reasonably likely to materially affect, the Company's internal control over financial reporting.

27

PART II - OTHER INFORMATION

Item 1. Legal Proceedings

From time to time we have been, and may in the future become involved in, litigation or other legal proceedings relating to claims arising in the normal course of business. In the opinion of management, there are no pending or threatened legal proceedings which would reasonably be expected to have a material adverse effect on our business or results of operations. We may become involved in material legal proceedings in the future.

For a description of certain legal proceedings, see Part I, Item 1, Financial Information - Notes to Unaudited Consolidated Financial Statements, Note 9, Commitments and Contingencies.

Item 1A. Risk Factors

There were no material changes during the three months ended September 30, 2016 to the risk factors previously disclosed in the 2015 Form 10-K.

Item 2. Unregistered Sales of Equity Securities and Use of Proceeds

(a) None.

(b) None.

(c) On November 4, 2015, the Company announced that the Board of Directors approved a new stock repurchase program authorizing the Company to repurchase up to $50.0 million of its common stock, at such times and prices as determined by management as market conditions warrant, through December 31, 2016. On August 3, 2016, the Company announced the Board of Directors had approved an expansion of its stock repurchase program by $50 million, increasing the aggregate authorization from up to $50.0 million to up to $100.0 million. The program was also extended from the end of 2016 to the end of 2017.

Common Stock Repurchase Activity During the Three Months Ended September 30, 2016
Period	Total Number of Shares Purchased	Average Price Paid Per Share		Total Number of Shares Purchased as Part of the Publicly Announced Plans or Programs	Maximum Dollar Value That May Yet Be Purchased Under the Plans or Programs (a)
July 1 - July 31, 2016	65,280	$	21.51	65,280	$	18,142,056
August 1 - August 31, 2016	189,600	22.30		189,600	63,913,405
September 1 - September 30, 2016	265,963	21.75		265,963	58,129,495
Total	520,843	$	21.92	520,843

(a) These amounts represent the remaining maximum dollar value that may yet be purchased under the board approval. As of July 31, 2016 this amount is related to the $50.0 million approval made in 2015, and the amounts for August and September have been adjusted to account for the additional $50.0 million approval in August 2016, bringing the total approved amount to $100.0 million.

Item 3. Defaults Upon Senior Securities

(a) None.

(b) None.

Item 4. Mine Safety Disclosures

Not applicable.

Item 5. Other Information

(a) None.

(b) None.

28

Item 6. Exhibits

Exhibit No.	Description of Exhibit
10.1	Amended and Restated Credit Agreement dated as of August 18, 2016 among Continental Building Products Inc., Continental Building Products Operating Company, LLC, Continental Building Products Canada, Inc. the lenders party thereto and Credit Suisse AG as Administrative Agent, filed on August 22, 2016 as Exhibit 10.1 to the Company's Current Report on Form 8-K, and incorporated herein by reference.
31.1	Certification of Chief Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
31.2	Certification of Chief Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
32.1	Certification of Chief Executive Officer and Chief Financial Officer pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
101.INS	XBRL Instance Document.
101.SCH	XBRL Taxonomy Extension Schema Document.
101.CAL	XBRL Taxonomy Calculation Linkbase Document.
101.DEF	XBRL Taxonomy Definition Linkbase Document.
101.LAB	XBRL Taxonomy Label Linkbase Document.
101.PRE	XBRL Taxonomy Presentation Linkbase Document.

29

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

CONTINENTAL BUILDING PRODUCTS, INC.
(Registrant)
	/s/ James Bachmann	November 8, 2016
By:	James Bachmann
	President and Chief Executive Officer
	(Principal Executive Officer)
	/s/ Dennis Schemm	November 8, 2016
By:	Dennis Schemm
	Senior Vice President and Chief Financial Officer
	(Principal Financial Officer)

30

EX-31.1

Exhibit 31.1

CERTIFICATION

I, James Bachmann, certify that:

1. I have reviewed this Quarterly Report on Form 10-Q of Continental Building Products, Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a. Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b. Designed such internal controls over financial reporting, or caused such internal controls over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c. Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d. Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting;

5. The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a. All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b. Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

/s/ James Bachmann	November 8, 2016
James Bachmann	Date
President and Chief Executive Officer
(Principal Executive Officer)

EX-31.2

Exhibit 31.2

CERTIFICATION

I, Dennis Schemm, certify that:

1. I have reviewed this Quarterly Report on Form 10-Q of Continental Building Products, Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a. Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b. Designed such internal controls over financial reporting, or caused such internal controls over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c. Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d. Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting;

5. The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a. All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b. Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

/s/ Dennis Schemm	November 8, 2016
Dennis Schemm	Date
Senior Vice President and Chief Financial Officer
(Principal Financial Officer)

EX-32.1

Exhibit 32.1

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of Continental Building Products, Inc. (the “Company”) on Form 10-Q for the fiscal quarterly period ended September 30, 2016 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), the undersigned, James Bachmann, President and Chief Executive Officer of the Company, and Dennis Schemm, Senior Vice President and Chief Financial Officer of the Company, each certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 that to his knowledge:

(1) The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ James Bachmann	November 8, 2016
James Bachmann	Date
President and Chief Executive Officer
(Principal Executive Officer)
/s/ Dennis Schemm	November 8, 2016
Dennis Schemm	Date
Senior Vice President and Chief Financial Officer
(Principal Financial Officer)

XML

Document and Entity Information - shares	9 Months Ended
	Sep. 30, 2016	Nov. 02, 2016
Document and Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Sep. 30, 2016
Document Fiscal Year Focus	2016
Document Fiscal Period Focus	Q3
Trading Symbol	CBPX
Entity Registrant Name	CONTINENTAL BUILDING PRODUCTS, INC.
Entity Central Index Key	0001592480
Current Fiscal Year End Date	--12-31
Entity Current Reporting Status	Yes
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding (shares)		39,992,339

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Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Income Statement [Abstract]
Net sales	$ 114,558	$ 108,150	$ 343,158	$ 311,322
Costs, expenses and other income:
Cost of goods sold	86,756	78,151	250,455	231,342
Selling and administrative	9,241	9,008	28,364	26,799
Long Term Incentive Plan funded by Lone Star	0	9,933	0	29,946
Total costs and operating expenses	95,997	97,092	278,819	288,087
Operating income	18,561	11,058	64,339	23,235
Other expense, net	(5,900)	(283)	(5,740)	(700)
Interest expense, net	(3,146)	(4,154)	(10,492)	(12,559)
Income before losses from equity method investment and provision for income tax	9,515	6,621	48,107	9,976
Losses from equity method investment	(291)	(278)	(726)	(530)
Income before provision for income taxes	9,224	6,343	47,381	9,446
Provision for income taxes	(3,014)	(2,104)	(15,948)	(3,313)
Net income	$ 6,210	$ 4,239	$ 31,433	$ 6,133
Net income per share:
Basic (usd per share)	$ 0.15	$ 0.10	$ 0.77	$ 0.14
Diluted (usd per share)	$ 0.15	$ 0.10	$ 0.77	$ 0.14
Weighted average shares outstanding:
Basic (shares)	40,318,741	42,999,654	40,836,000	43,556,876
Diluted (shares)	40,388,185	43,057,749	40,879,809	43,596,978

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Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Statement of Comprehensive Income [Abstract]
Net income	$ 6,210	$ 4,239	$ 31,433	$ 6,133
Foreign currency translation adjustment	(239)	(1,430)	884	(2,568)
Net unrealized gain on derivatives, net of tax	(107)	292	54	790
Other comprehensive (loss)/income	(346)	(1,138)	938	(1,778)
Comprehensive income	$ 5,864	$ 3,101	$ 32,371	$ 4,355

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Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Assets:
Cash and cash equivalents	$ 34,758	$ 14,729
Receivables, net	34,531	35,812
Inventories	26,965	27,080
Prepaid and other current assets	3,090	6,448
Total current assets	99,344	84,069
Property, plant and equipment, net	307,443	326,407
Customer relationships and other intangibles, net	85,105	94,835
Goodwill	119,945	119,945
Equity method investment	8,297	9,262
Debt issuance costs	704	450
Total Assets	620,838	634,968
Liabilities:
Accounts payable	27,190	22,788
Accrued and other liabilities	12,626	12,334
Notes payable, current portion	1,746	0
Total current liabilities	41,562	35,122
Deferred taxes and other long-term liabilities	12,466	12,537
Notes payable, non-current portion	265,053	286,543
Total Liabilities	319,081	334,202
Equity:
Undesignated preferred stock, par value $0.001 per share; 10,000,000 shares authorized, no shares issued and outstanding at September 30, 2016 and December 31, 2015	0	0
Common stock, $0.001 par value per share; 190,000,000 shares authorized; 44,191,370 and 44,145,080 shares issued at September 30, 2016 and December 31, 2015, respectively; 39,992,339 and 41,750,031 shares outstanding at September 30, 2016 and December 31, 2015, respectively	44	44
Additional paid-in capital	321,865	319,817
Less: Treasury stock	(81,906)	(48,479)
Accumulated other comprehensive loss	(4,403)	(5,341)
Accumulated earnings	66,157	34,725
Total Equity	301,757	300,766
Total Liabilities and Equity	$ 620,838	$ 634,968

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Consolidated Balance Sheets (Parenthetical) - $ / shares	Sep. 30, 2016	Dec. 31, 2015
Statement of Financial Position [Abstract]
Undesignated preferred stock, par value (usd per share)	$ 0.001	$ 0.001
Undesignated preferred stock, shares authorized	10,000,000	10,000,000
Undesignated preferred stock, shares issued	0	0
Undesignated preferred stock, shares outstanding	0	0
Common stock, par value (usd per share)	$ 0.001	$ 0.001
Common stock, shares authorized	190,000,000	190,000,000
Common stock, shares issued	44,191,370	44,145,080
Common stock, shares outstanding	39,992,339	41,750,031

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Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Cash flows from operating activities:
Net income	$ 31,433	$ 6,133
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	35,656	38,931
Bad debt expense/(recovery)	15	(250)
Amortization of debt issuance costs and debt discount	1,651	1,742
Loss on disposal of property, plant and equipment	41	0
Losses from equity method investment	726	530
Loss on debt extinguishment	5,802	0
Stock-based compensation	1,769	730
Deferred taxes	340	(491)
Change in assets and liabilities:
Receivables	1,303	2,654
Inventories	242	(2,401)
Prepaid expenses and other current assets	3,147	1,178
Accounts payable	2,942	1,955
Accrued and other current liabilities	502	275
Other long term liabilities	(477)	(142)
Net cash provided by operating activities	85,092	50,844
Cash flows from investing activities:
Capital expenditures	(4,797)	(2,851)
Software purchased or developed	(386)	(880)
Capital contributions to equity method investment	(259)	(4)
Distributions from equity method investment	498	797
Net cash used in investing activities	(4,944)	(2,938)
Cash flows from financing activities:
Capital contribution from Lone Star Funds	0	29,750
Proceeds from debt refinancing	275,000	0
Disbursements for debt refinancing	271,988	0
Payments of financing costs	(4,424)	0
Proceeds from exercise of stock options	20	0
Principal payments for First Lien Credit Agreement	(25,688)	(35,000)
Payments to repurchase common stock	(33,427)	(40,035)
Net cash used in financing activities	(60,507)	(45,285)
Effect of foreign exchange rates on cash and cash equivalents	388	(990)
Net change in cash and cash equivalents	20,029	1,631
Cash, beginning of period	14,729	15,627
Cash, end of period	$ 34,758	$ 17,258

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Background and Nature of Operations

9 Months Ended

Sep. 30, 2016

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Background and Nature of Operations

BACKGROUND AND NATURE OF OPERATIONS

Description of Business

Continental Building Products, Inc. ("CBP", the "Company") is a Delaware corporation. Prior to the acquisition of the gypsum division of Lafarge North America Inc. (“Lafarge N.A.”) further described below, the Company had no operating activity.

The Company manufactures gypsum wallboard related products for commercial and residential buildings and houses. The Company operates a network of three highly efficient wallboard facilities, all located in the eastern United States and produces joint compound at one plant in the United States and at another plant in Canada.

The Acquisition

On June 24, 2013, Lone Star Fund VIII (U.S.), L.P., (along with its affiliates and associates, but excluding the Company and companies that it owns as a result of its investment activity, “Lone Star”), entered into a definitive agreement with Lafarge N.A. to purchase the assets of its North American gypsum division for an aggregate purchase price of approximately $703 million (the "Acquisition") in cash. The closing of the Acquisition occurred on August 30, 2013.

Initial Public Offering

On February 10, 2014, the Company completed the initial public offering of 11,765,000 shares of its common stock at an offering price of $14.00 per share (the "Initial Public Offering"). Net proceeds from the Initial Public Offering after underwriting discounts and commissions, but before other closing costs, were approximately $154 million. The net proceeds were used to pay a $2 million one-time payment to Lone Star in consideration for the termination of the Company’s asset advisory agreement with affiliates of Lone Star. The remaining $152 million of net proceeds and cash on hand of $6.1 million were used to repay the $155 million Second Lien Term Loan in full along with a prepayment premium of $3.1 million (See Note 12, Debt). In expectation of the Initial Public Offering, on February 3, 2014, the Company effected a 32,304 for one stock split of its common stock. The Company’s common stock trades on the New York Stock Exchange under the symbol "CBPX".

Secondary Public Offerings

On March 18, 2015, LSF8 Gypsum Holdings, L.P. ("LSF8"), an affiliate of Lone Star, sold 5,000,000 shares of the Company’s common stock at a price per share of $19.40. As a result of the sale, the aggregate beneficial ownership of Lone Star fell below 50% of the Company’s outstanding shares of common stock and the Company no longer qualified as a "Controlled Company" under the corporate governance standards of New York Stock Exchange. On May 15, 2015 and June 3, 2015, LSF8 sold an additional 4,600,000 and 361,747 shares of the Company’s common stock, respectively, at a price per share of $21.90. On September 16, 2015, LSF8 sold an additional 4,600,000 shares of the Company’s common stock at a price per share of $19.85. The decrease in ownership by Lone Star and its affiliates to below 50% and LSF8’s subsequent sales of common stock triggered an aggregate of $29.9 million in payments to certain officers and the estate of the Company’s former CEO under the LSF8 Gypsum Holdings, L.P. Long Term Incentive Plan, which was funded by LSF8 (See Note 10, Related Party Transactions).

On March 18, 2016, LSF8 sold its remaining 5,106,803 shares of the Company’s common stock at a price per share of $16.10. Following the March 18, 2016 transaction and the concurrent repurchase by the Company of 900,000 shares of Company’s common stock from LSF8, neither LSF8 nor any other affiliate of Lone Star held any shares of Company common stock. (See Note 15, Treasury Stock).

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Significant Accounting Policies

9 Months Ended

Sep. 30, 2016

Accounting Policies [Abstract]

Significant Accounting Policies

SIGNIFICANT ACCOUNTING POLICIES

(a) Basis of Presentation

The accompanying consolidated financial statements for CBP have been prepared in accordance with accounting principles generally accepted in the United States ("U.S. GAAP"). The consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries. All intercompany transactions have been eliminated.

(b) Basis of Presentation for Interim Periods

Certain information and footnote disclosures normally included for the annual financial statements prepared in accordance with U.S. GAAP have been condensed or omitted for the interim periods presented. Management believes that the unaudited interim financial statements include all adjustments (which are normal and recurring in nature) necessary to present fairly the financial position of the Company and the results of operations and cash flows for the periods presented.

The results of operations for the periods presented are not necessarily indicative of the results that may be expected for the year ending December 31, 2016. Seasonal changes and other conditions can affect the sales volumes of the Company’s products. Therefore, the financial results for any interim period do not necessarily indicate the expected results for the year.

The financial statements should be read in conjunction with CBP’s audited consolidated financial statements and the notes thereto for the year ended December 31, 2015 included in the Company’s Annual Report on Form 10-K for the fiscal year then ended (the "2015 10-K"). The Company has continued to follow the accounting policies set forth in those financial statements.

(c) Recent Accounting Pronouncements

In May 2014, the Financial Accounting Standards Board (the "FASB") issued Accounting Standards Update ("ASU") No. 2014-9, Revenue from Contracts with Customers (Topic 606), which provides accounting guidance for all revenue arising from contracts with customers and affects all entities that enter into contracts to provide goods or services to their customers. In August 2015, the FASB issued ASU No. 2015-14, Revenue from Contracts with Customers (Topic 606): Deferral of the Effective Date, which defers the effective date of ASU No. 2014-9 for all entities by one year to annual reporting periods beginning after December 15, 2017. The ASU requires retroactive application on either a full or modified basis. Early application is permitted as of the original effective date on December 15, 2016. The Company is currently evaluating ASU 2014-9 to determine its impact on its consolidated financial statements and disclosures.

In August 2014, the FASB issued ASU No. 2014-15, Disclosure of Uncertainties about an Entity’s Ability to Continue as a Going Concern: Presentation of Financial Statements— Going Concern (Subtopic 205-40). This ASU defines when and how companies are required to disclose going concern uncertainties, which must be evaluated each interim and annual period. Specifically, it requires management to determine whether substantial doubt exists regarding the entity’s going concern presumption. Substantial doubt about an entity’s ability to continue as a going concern exists when relevant conditions and events, considered in the aggregate, indicate that it is probable that the entity will be unable to meet its obligations as they become due within one year after the date that the financial statements are issued (or available to be issued). If substantial doubt exists, certain disclosures are required; the extent of those disclosures depends on an evaluation of management’s plans (if any) to mitigate the going concern uncertainty. The provisions of ASU 2014-15 will be effective for annual periods ending after December 15, 2016, and to annual and interim periods thereafter. Early adoption is permitted. The ASU should be applied on a prospective basis. The Company believes the adoption of this ASU will not have a material impact on the Company’s disclosures.

In April 2015, the FASB issued ASU 2015-3, Interest—Imputation of Interest (Subtopic 835-30): Simplifying the Presentation of Debt Issuance Costs, which changes the presentation of debt issuance costs in financial statements. Under the ASU, an entity presents such costs in the balance sheet as a direct deduction from the related debt liability. Amortization of the costs is reported as interest expense. The Company adopted ASU 2015-3 during the first quarter of 2016. Upon adoption, the guidance was applied retroactively to all periods presented in the financial statements, therefore, prior period adjustments were made to the December 31, 2015 balance sheet items and related footnotes. The effect of these adjustments was to reduce prepaid and other current assets by $1.6 million, reduce debt issuance costs by $6.5 million and reduce notes payable by $8.1 million. The adoption of this ASU did not have a material impact on the Company’s results of operations.

In February 2016, the FASB issued ASU 2016-02, Leases. ASU 2016-02 requires lessees to recognize a lease liability and a right-of-use asset on the balance sheet. ASU 2016-02 is effective for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. The Company is currently evaluating ASU 2016-02 to determine its impact on its consolidated financial statements and disclosures.

In March 2016, the FASB issued ASU 2016-09, Compensation-Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting, which introduces targeted amendments intended to simplify the accounting for stock compensation. Specifically, the ASU requires all excess tax benefits and tax deficiencies (including tax benefits of dividends on share-based payment awards) to be recognized as income tax expense or benefit in the income statement. The tax effects of exercised or vested awards should be treated as discrete items in the reporting period in which they occur. An entity also should recognize excess tax benefits, and assess the need for a valuation allowance, regardless of whether the benefit reduces taxes payable in the current period. That is, off balance sheet accounting for net operating losses stemming from excess tax benefits would no longer be required and instead such net operating losses would be recognized when they arise. Existing net operating losses that are currently tracked off balance sheet would be recognized, net of a valuation allowance if required, through an adjustment to opening retained earnings in the period of adoption. Entities will no longer need to maintain and track an “APIC pool.” The ASU also requires excess tax benefits to be classified along with other income tax cash flows as an operating activity in the statement of cash flows. The amendments are effective for annual periods beginning after December 15, 2016. Early adoption is permitted. The Company is currently evaluating ASU 2016-09 to determine its impact on its consolidated financial statements and disclosures.

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Receivables, Net

9 Months Ended

Sep. 30, 2016

Receivables [Abstract]

Receivables, Net

RECEIVABLES, NET

F3: Detail of Receivables, Net
	September 30, 2016			December 31, 2015
	(in thousands)
Trade receivables, gross	$	35,352		$	37,800
Allowance for cash discounts and doubtful accounts	(821		)	(1,988		)
Receivables, net	$	34,531		$	35,812

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Inventories

9 Months Ended

Sep. 30, 2016

Inventory Disclosure [Abstract]

Inventories

INVENTORIES

F4: Composition of Inventories
	September 30, 2016		December 31, 2015
	(in thousands)
Finished products	$	7,158	$	5,454
Raw materials	12,662		14,557
Supplies and other	7,145		7,069
Inventories	$	26,965	$	27,080

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Property, Plant and Equipment, Net

9 Months Ended

Sep. 30, 2016

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment, Net

PROPERTY, PLANT AND EQUIPMENT, NET

F5: Property, Plant and Equipment Details
	September 30, 2016			December 31, 2015
	(in thousands)
Land	$	12,926		$	12,925
Buildings	112,589			112,121
Plant machinery	273,662			272,613
Mobile equipment	6,008			3,837
Construction in progress	8,832			6,812
Property, plant and equipment, at cost	414,017			408,308
Accumulated depreciation	(106,574		)	(81,901		)
Total property, plant and equipment, net	$	307,443		$	326,407

Depreciation expense was $8.5 million and $25.2 million for the three and nine months ended September 30, 2016, respectively, compared to $8.7 million and $26.5 million for the three and nine months ended September 30, 2015, respectively.

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Customer Relationships and Other Intangibles, Net

9 Months Ended

Sep. 30, 2016

Goodwill and Intangible Assets Disclosure [Abstract]

Customer Relationships and Other Intangibles, Net

CUSTOMER RELATIONSHIPS AND OTHER INTANGIBLES, NET

F6: Details of Customer Relationships and Other Intangibles, Net
	September 30, 2016			December 31, 2015
	(in thousands)
Customer relationships	$	116,410		$	116,073
Purchased and internally developed software	5,688			5,284
Trademarks	14,801			14,759
Customer relationships and other intangibles, at cost	136,899			136,116
Accumulated amortization	(51,794		)	(41,281		)
Customer relationships and other intangibles, net	$	85,105		$	94,835

Amortization expense was $3.4 million and $10.4 million for the three and nine months ended September 30, 2016, respectively, compared to $4.0 million and $12.4 million for the three and nine months ended September 30, 2015, respectively.

Customer relationship assets are amortized over a 15 year period using an accelerated method that reflects the expected future cash flows from the acquired customer-list intangible asset. Trademarks are amortized on a straight-line basis over the estimated useful life of 15 years.

Software development costs are amortized over a 3 year life with the expense recorded in selling and administrative expense. Amortization expense related to capitalized software was $0.4 million and $1.2 million for the three and nine months ended September 30, 2016, respectively, compared to $0.4 million and $1.1 million for the three and nine months ended September 30, 2015.

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Accrued and Other Liabilities

9 Months Ended

Sep. 30, 2016

Payables and Accruals [Abstract]

Accrued and Other Liabilities

ACCRUED AND OTHER LIABILITIES

F7: Details of Accrued and Other Liabilities
	September 30, 2016		December 31, 2015
	(in thousands)
Employee-related costs	$	7,342	$	7,621
Income taxes	826		2,482
Other taxes	3,472		1,390
Other	986		841
Accrued and other liabilities	$	12,626	$	12,334

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Income Taxes

9 Months Ended

Sep. 30, 2016

Income Tax Disclosure [Abstract]

Income Taxes

INCOME TAXES

The Company’s annual estimated effective tax rate is approximately 33.8%. The Company is subject to audit examinations at federal, state and local levels by tax authorities in those jurisdictions. In addition, the Canadian operations are subject to audit examinations at federal and provincial levels by tax authorities in those jurisdictions. The tax matters challenged by the tax authorities are typically complex; therefore, the ultimate outcome of any challenges would be subject to uncertainty. The Company has not identified any issues that did not meet the recognition threshold or would be impacted by the measurement provisions of the uncertain tax position guidance.

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Commitments and Contingencies

9 Months Ended

Sep. 30, 2016

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

COMMITMENTS AND CONTINGENCIES

The Company leases certain buildings and equipment. The Company’s facility and equipment leases may provide for escalations of rent or rent abatements and payment of pro rata portions of building operating expenses. Minimum lease payments are recognized on a straight-line basis over the minimum lease term. The total expenses under operating leases for the three and nine months ended September 30, 2016 was $1.0 million and $3.1 million, respectively, compared to $1.2 million and $3.3 million for the same periods in 2015, respectively. The Company also has non-capital purchase commitments that primarily relate to gas, gypsum, paper and other raw materials. The total amounts purchased under such commitments were $16.4 million and $49.5 million for the three and nine months ended September 30, 2016, respectively, compared to $17.6 million and $50.4 million for the three and nine months ended September 30, 2015, respectively.

F9: Future Minimum Lease Payments Due Under Noncancellable Operating Leases and Purchase Commitments by Year
	Future Minimum Lease Payments		Purchase Commitments
	(in thousands)
October 1, 2016 through December 31, 2016	$	363	$	15,264
2017	1,183		31,292
2018	616		29,463
2019	1,494		19,870
2020	—		14,185
2021	—		3,232
Thereafter	—		27,173
Total	$	3,656	$	140,479

Under certain circumstances, the Company provides letters of credit related to its natural gas and other supply purchases. As of September 30, 2016 and December 31, 2015, the Company had outstanding letters of credit of approximately $2.1 million and $3.0 million, respectively.

In March 2015, a group of homebuilders commenced a lawsuit against the Company and other U.S. wallboard manufacturers, alleging that such manufacturers had conspired to fix the price of wallboard in violation of antitrust and unfair competition laws. The complaint, as amended in October 2015, December 2015 and March 2016, also alleged that the manufacturers agreed to abolish the use of "job quotes" and agreed to restrict the supply of wallboard in order to support the allegedly collusive price increases. The case was transferred to the Eastern District of Pennsylvania for coordinated and consolidated pretrial proceedings with existing antitrust litigation in that district. The Company filed a motion to dismiss the case with respect to the Company in April 2016 and denied any wrongdoing of the type alleged in the amended complaint. In June 2016, the Court granted the Company's motion to dismiss the case with respect to the Company, with prejudice. In July 2016, the plaintiffs filed a Motion to Certify Order for Interlocutory Appeal seeking to challenge the Court's decision to grant the Company's motion to dismiss. In September 2016 the Court denied the plaintiffs' motion to Certify Order to Interlocutory appeal, and, based on the Court's order dismissing the case against the Company, the plaintiffs and the Company executed a joint stipulation dismissing the case against the Company, with prejudice. The dismissal of the case against Continental does not limit or restrict the right of the plaintiffs eventually to appeal the Court's order dismissing the case. The Company believes it has meritorious defenses to the allegations and does not believe the lawsuit will have a material adverse effect on its financial condition, results of operation or liquidity.

In July 2015, the Company received a grand jury subpoena directing it to provide certain documents in connection with an investigation being conducted by the Department of Justice regarding antitrust matters in the gypsum drywall industry. The Company cooperated fully with the Department of Justice in responding to the subpoena. In September of 2016, the Department of Justice advised the Company that the Company has no further obligations under the subpoena and that nothing further is required from the Company with respect to the subpoena. The Company does not believe the investigation will have a material adverse effect on its financial condition, results of operations or liquidity.

In the ordinary course of business, the Company executes contracts involving indemnifications standard in the industry. These indemnifications might include claims relating to any of the following: environmental and tax matters; intellectual property rights; governmental regulations and employment-related matters; customer, supplier, and other commercial contractual relationships; and financial matters. While the maximum amount to which the Company may be exposed under such agreements cannot be estimated, it is the opinion of management that these guarantees and indemnifications are not expected to have a materially adverse effect on the Company’s financial condition, results of operations or liquidity.

In the ordinary course of business, the Company is involved in certain legal actions and claims, including proceedings under laws and regulations relating to environmental and other matters. Because such matters are subject to many uncertainties and the outcomes are not predictable with assurance, the total liability for these legal actions and claims cannot be determined with certainty. When the Company determines that it is probable that a liability for environmental matters, legal actions or other contingencies has been incurred and the amount of the loss is reasonably estimable, an estimate of the costs to be incurred is recorded as a liability in the financial statements. As of September 30, 2016 and December 31, 2015, such liabilities were not expected to have a material adverse effect on the Company’s financial condition, results of operations or liquidity. While management believes its accruals for such liabilities are adequate, the Company may incur costs in excess of the amounts provided. Although the ultimate amount of liability that may result from these matters or actions is not ascertainable, any amounts exceeding the recorded accruals are not expected to have a material adverse effect on the Company’s financial condition, results of operations or liquidity.

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Related Party Transactions

9 Months Ended

Sep. 30, 2016

Related Party Transactions [Abstract]

Related Party Transactions

RELATED PARTY TRANSACTIONS

LTIP Payments

In connection with the March, May and September 2015 secondary public offerings and concurrent May and September 2015 stock repurchases, certain officers of the Company and the estate of the Company’s former CEO earned incentive payments in the aggregate amount of approximately $29.9 million under the LSF8 Gypsum Holdings, L.P. Long-Term Incentive Plan ("LTIP"). LSF8 was responsible for funding any payments under the LTIP, including those referenced above. As these payments arose out of employment with the Company, the Company recognized the payments made to the officers and the estate as an expense. The funding of the LTIP payments by LSF8 was recorded as additional paid-in capital. The $29.9 million in LTIP payments were recorded as an expense to the Company, that were tax deductible, and capital contributions by LSF8 in the first, second and third quarters of 2015. No further payments will be made under the LTIP.

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Investment in Seven Hills

9 Months Ended

Sep. 30, 2016

Equity Method Investments and Joint Ventures [Abstract]

Investment in Seven Hills

INVESTMENT IN SEVEN HILLS

The Company is a party with an unaffiliated third-party to a paperboard liner venture named Seven Hills Paperboard, LLC ("Seven Hills") that provides the Company with a continuous supply of high-quality recycled paperboard liner to meet its ongoing production requirements.

The Company has evaluated the characteristics of its investment and determined that Seven Hills would be deemed a variable interest entity, but that it does not have the power to direct the principal activities most impacting the economic performance of Seven Hills, and is thus not the primary beneficiary. As such, the Company accounts for this investment in Seven Hills under the equity method of accounting.

Paperboard liner purchased from Seven Hills was $11.1 million and $34.0 million for the three and nine months ended September 30, 2016, respectively, compared to $11.8 million and $34.2 million for the three and nine months ended September 30, 2015, respectively. As of September 30, 2016, the Company had certain purchase commitments for paper totaling $33.0 million through 2019.

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Debt

9 Months Ended

Sep. 30, 2016

Debt Disclosure [Abstract]

Debt

DEBT 

F12.1: Details of Debt
	September 30, 2016			December 31, 2015
	(in thousands)
First Lien Credit Agreement (a)	$	274,313		$	296,988
Less: Original issue discount (net of amortization)	(2,014		)	(2,372		)
Less: Debt issuance costs	(5,500		)	(8,073		)
Total debt	266,799			286,543
Less: Current portion of long-term debt	(1,746		)	—
Long-term debt	$	265,053		$	286,543
(a) As of September 30, 2016, the First Lien Credit Agreement, as amended and restated, had a maturity date of August 18, 2023 and an interest rate of LIBOR (with a 0.75% floor) plus 2.75%, compared to as of December 31, 2015, at which time the First Lien Credit Agreement had a maturity date of August 28, 2020 and an interest rate of LIBOR (with a 1.00% floor) plus 3.00%. The First Lien Credit Agreement was amended and restated in August 2016 as discussed below.

In connection with the Acquisition, the Company purchased certain assets from Lafarge N.A. with cash. In order to finance a portion of the consideration payable to Lafarge N.A., the Company and its subsidiary Continental Building Products Operating Company, LLC ("OpCo") entered into a first lien credit agreement with Credit Suisse AG, as administrative agent, Credit Suisse Securities (USA) LLC and RBC Capital Markets, as joint lead arrangers and joint bookrunners, and Royal Bank of Canada, as syndication agent (as amended on December 2, 2013, the "First Lien Credit Agreement") and a second lien credit agreement with Credit Suisse AG, as administrative agent, Credit Suisse Securities (USA) LLC and RBC Capital Markets, as joint lead arrangers and joint bookrunners, and Royal Bank of Canada, as syndication agent for borrowings of $320 million and $120 million, respectively, and drew $25 million under a $50 million revolving credit facility (the "Revolver") as part of the First Lien Credit Agreement. The available amount under the First Lien Credit Agreement was subsequently increased to $415.0 million (the "First Lien Term Loan"). In conjunction with the initial issuance of this debt, the Company incurred $15.3 million of debt issuance costs which were being amortized using the effective interest rate method or the straight-line method which approximates the effective interest rate method, over the estimated life of the related debt.

On August 18, 2016, the Company, Opco and Continental Building Products Canada Inc. and the lenders party thereto and Credit Suisse, as Administrative Agent, entered into an Amended and Restated Credit Agreement amending and restating the First Lien Credit Agreement (the "Amended and Restated Credit Agreement"). The Amended and Restated Credit Agreement provides for a $275 million senior secured first lien term loan facility and a $75 million senior secured revolving credit facility, which mature on August 18, 2023 and August 18, 2021, respectively. Related to this debt refinancing, the Company incurred $4.7 million of discount and debt issuance costs, of which $2.5 million was recorded in Other Expense, net on the Consolidated Statement of Operations and $2.2 million will be amortized over the term of the Amended and Restated Credit Agreement. Upon completion of this debt refinancing, the Company recognized an additional expense of $3.3 million related to losses resulting from debt extinguishment which is also reported in Other expense, net on the Consolidated Statement of Operations.

Interest under the First Lien Credit Agreement was floating. The interest rate spread over LIBOR, which has a 1% floor, was reduced by 50 basis points in May 2014, from 3.75% to 3.25%, as a result of the Company achieving a total leverage ratio of less than four times net debt to the trailing twelve months adjusted earnings before interest, depreciation and amortization, as of March 31, 2014, as calculated pursuant to the First Lien Credit Agreement. The margin applicable to the borrowing was further reduced in the third quarter 2014 by 25 basis points to 3.00% after the Company achieved a B2 rating with a stable outlook by Moody’s. The interest rate under the Amended and Restated Credit Agreement remains floating with a spread over LIBOR of 2.75% and floor of 0.75%.

The First Lien Credit Agreement was, and the Amended and Restated Credit Agreement is, secured by the underlying property and equipment of the Company. During the nine months ended September 30, 2016 and 2015, the Company pre-paid $25.7 million and $35.0 million, respectively, of principal payments. As of September 30, 2016, the annual effective interest rate on the Amended and Restated Credit Agreement including original issue discount and amortization of debt issuance costs was 4.0%.

There were no amounts outstanding under the Company's revolving credit facility as of September 30, 2016 or December 31, 2015. During the nine months ended September 30, 2016 the Company borrowed and repaid in full $22.0 million under the applicable revolving credit facility, compared to $10.0 million which the Company borrowed and repaid in full during the nine months ended September 30, 2015. Interest under the revolving credit facility under the Amended and Restated Credit Agreement (the "Revolver") is floating, based on LIBOR) plus 225 basis points. In addition, the Company pays a facility fee of 50 basis points per annum on the total Revolver facility. Availability under the Revolver as of September 30, 2016, based on draws and outstanding letters of credit and absence of violations of covenants, was $72.9 million.

Total interest paid for the three and nine months ended September 30, 2016 was $2.6 million and $8.5 million, respectively, compared to $3.4 million and $10.3 million for the three and nine months ended September 30, 2015, respectively.

F12.2: Future Minimum Principal Payments Due Under the Credit Agreements
	Amount Due
	(in thousands)
2016	$	688
2017	2,750
2018	2,750
2019	2,750
2020	2,750
Thereafter	262,625

Under the terms of the Amended and Restated Credit Agreement, the Company is required to comply with certain covenants, including among others, the limitation of indebtedness, limitation on liens, and limitations on certain cash distributions. One single financial covenant governs all of the Company’s debt and only applies if the outstanding borrowings of the Revolver plus outstanding letters of credit are greater than $22.5 million as of the end of the quarter. The financial covenant is a total leverage ratio calculation, in which total debt less outstanding cash is divided by adjusted earnings before interest, depreciation and amortization. As the sum of outstanding borrowings under the Revolver and outstanding letters of credit were less than $22.5 million at September 30, 2016, the total leverage ratio of no greater than 5.0 per the financial covenant was not applicable at September 30, 2016.

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Derivative Instruments

9 Months Ended

Sep. 30, 2016

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Derivative Instruments

DERIVATIVE INSTRUMENTS

The Company uses derivative instruments to manage selected commodity price and interest rate exposures. The Company does not use derivative instruments for speculative trading purposes, and typically does not hedge beyond one year for commodity derivative instruments. Cash flows from derivative instruments are included in net cash provided by operating activities in the consolidated statements of cash flows.

Commodity Derivative Instruments

As of September 30, 2016, the Company had 630 thousand millions of British Thermal Units ("mmBTUs") in aggregate notional amount outstanding natural gas swap contracts to manage commodity price exposures. All of these contracts mature by March 31, 2017. The Company elected to designate these derivative instruments as cash flow hedges in accordance with FASB Accounting Standards Codification ("ASC") 815-20, Derivatives – Hedging. For derivative contracts designated as cash flow hedges, the effective portion of changes in the fair value of the derivative is recorded to accumulated other comprehensive income, and is reclassified to earnings when the underlying forecasted transaction affects earnings. The ineffective portion of changes in the fair value of the derivative is recorded in cost of goods sold. The net unrealized loss that remained in accumulated other comprehensive loss as of September 30, 2016 was $12,000 which is net of a tax amount of $6,000. No ineffectiveness was recorded on these contracts during the three months ended September 30, 2016 and 2015. The Company reassesses the probability of the underlying forecasted transactions occurring on a quarterly basis.

For the three and nine months ended September 30, 2016, approximately $0.2 million of losses, net of $59,000 of tax benefit and $0.1 million of gains, net of $25,000 of tax expense, respectively, were recognized in other comprehensive income for the commodity contracts. For the three and nine months ended September 30, 2016, the amount of loss reclassified from accumulated other comprehensive income into income was $0.1 million and $0.3 million, respectively. As of September 30, 2016, there was $45,000 recorded in other current liabilities and $27,000 recorded in other current assets. As of December 31, 2015, $0.3 million was recorded in other current liabilities and $0.2 million was recorded in other current assets.

Interest Rate Derivative Instrument

The Company had an interest rate cap on three month U.S. Dollar LIBOR of 2% for a portion of the principal amount outstanding under the First Lien Credit Agreement that expired March 31, 2016. The hedge was being accounted for as a cash flow hedge. Changes in the time value of the interest rate cap are reflected directly in earnings through “other expense, net” in non-operating income. The Company recorded nominal amounts in the three months ended March 31, 2016 and the nine months ended September 30, 2015.

In September 2016, the Company entered into interest rate swap agreements for a combined notional amount of $100.0 million with a term of 4 years, which swapped the floating LIBOR on a portion of the term loan under the Amended and Restated Credit Agreement to an average fixed rate of 1.323% and LIBOR floor of 0.75%. The Company elected to designate these interest rate swaps as cash flow hedges for accounting purposes. The net unrealized gain that remained in accumulated other comprehensive loss as of September 30, 2016 was $8,000 which is net of a tax amount of $4,000. For both the three and nine months ended September 30, 2016, approximately $8,000 of gains, net of of tax expense of $4,000 were recognized in other comprehensive income for the interest rate contracts. As of September 30, 2016, there was $0.1 million recorded in other current liabilities and $0.1 million was recorded in other current assets.

Counterparty Risk

The Company is exposed to credit losses in the event of nonperformance by the counterparties to the Company’s derivative instruments. As of September 30, 2016, the Company’s derivatives were in a $6,000 net liability position. All of the Company’s counterparties have investment grade credit ratings; accordingly, the Company anticipates that the counterparties will be able to fully satisfy their obligations under the contracts. The Company’s agreements outline the conditions upon which it or the counterparties are required to post collateral. As of September 30, 2016, the Company had no collateral posted with its counterparties related to the derivatives.

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Segment Reporting

9 Months Ended

Sep. 30, 2016

Segment Reporting [Abstract]

Segment Reporting

SEGMENT REPORTING

Segment information is presented in accordance with ASC 280, Segment Reporting, which establishes standards for reporting information about operating segments. It also establishes standards for related disclosures about products and geographic areas. The Company’s primary reportable segment is wallboard which represented approximately 97.2% and 96.9% of the Company's revenues for the three and nine months ended September 30, 2016, respectively, compared to 96.7% and 96.7% of the Company’s revenues for the three and nine months ended September 30, 2015, respectively. This segment produces wallboard for the commercial and residential construction sectors. The Company also operates other business activities, primarily finishing products, which complement the Company’s full range of wallboard products.

Revenues from the major products sold to external customers include gypsum wallboard and finishing products.

The Company’s two geographic areas consist of the United States and Canada for which it reports net sales, fixed assets and total assets.

The Company evaluates operating performance based on profit or loss from operations before certain adjustments as shown below. Revenues are attributed to geographic areas based on the location of the assets producing the revenues. The Company did not provide asset information by segment as its Chief Operating Decision Maker does not use such information for purposes of allocating resources and assessing segment performance.

F14.1: Segment Reporting
	For the Three Months Ended						For the Nine Months Ended
	September 30, 2016			September 30, 2015			September 30, 2016			September 30, 2015
	(in thousands)
Net Sales:
Wallboard	$	111,322		$	104,624		$	332,514		$	300,936
Other	3,236			3,526			10,644			10,386
Total net sales	114,558			108,150			343,158			311,322
Operating income:
Wallboard	18,572			11,122			64,192			23,318
Other	(11		)	(64		)	147			(83		)
Total operating income	18,561			11,058			64,339			23,235
Adjustments:
Interest expense	(3,146		)	(4,154		)	(10,492		)	(12,559		)
Loss from equity investment	(291		)	(278		)	(726		)	(530		)
Other expense, net	(5,900		)	(283		)	(5,740		)	(700		)
Income before provision for income taxes	9,224			6,343			47,381			9,446
Depreciation and Amortization:
Wallboard	11,595			12,376			34,836			38,058
Other	273			285			820			873
Total depreciation and amortization	$	11,868		$	12,661		$	35,656		$	38,931

F14.2: Net Sales By Geographic Region
	For the Three Months Ended				For the Nine Months Ended
	September 30, 2016		September 30, 2015		September 30, 2016		September 30, 2015
	(in thousands)
United States	$	104,704	$	99,956	$	316,040	$	284,707
Canada	9,854		8,194		27,118		26,615
Net sales	$	114,558	$	108,150	$	343,158	$	311,322

F14.3: Assets By Geographic Region
	Fixed Assets				Total Assets
	September 30, 2016		December 31, 2015		September 30, 2016		December 31, 2015
	(in thousands)
United States	$	304,352	$	323,361	$	601,906	$	617,878
Canada	3,091		3,046		18,932		17,090
Total	$	307,443	$	326,407	$	620,838	$	634,968

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Treasury Stock

9 Months Ended

Sep. 30, 2016

Equity [Abstract]

Treasury Stock

TREASURY STOCK

On May 15, 2015, the Company repurchased 913,200 shares of its common stock from LSF8 in a private transaction at a price per share of $21.90, or an aggregate of approximately $20.0 million, pursuant to a stock purchase agreement dated May 11, 2015. On September 16, 2015, the Company repurchased an additional 1,007,500 shares of its common stock from LSF8 in a private transaction at a price per share of $19.85, or an aggregate of approximately $20.0 million, pursuant to a stock purchase agreement dated September 10, 2015. On March 18, 2016, the Company repurchased an additional 900,000 shares of its common stock from LSF8 in a private transaction at a price per share of $16.10, or an aggregate of approximately $14.5 million, pursuant to a stock purchase agreement dated March 14, 2016.

On November 4, 2015, the Company announced that the Board of Directors approved a new stock repurchase program authorizing the Company to repurchase up to $50.0 million of its common stock, at such times and prices as determined by management as market conditions warrant, through December 31, 2016. Pursuant to this authorization, the Company has repurchased shares of its common stock on the open market and in the March 2016 private transaction with LSF8 described above. On August 3, 2016, the Company announced the Board of Directors had approved an expansion of its stock repurchase program by $50.0 million, increasing the aggregate authorization from up to $50.0 million to up to $100.0 million. The program was also extended from the end of 2016 to the end of 2017.

All repurchased shares are held in treasury, reducing the number of shares of common stock outstanding and used in the Company’s earnings per share calculation.

F15: Treasury Stock Activity
	September 30, 2016					September 30, 2015
	Shares	Amount (a)		Average Share Price (a)		Shares	Amount (a)		Average Share Price (a)
	(in thousands, except share data)
For the Three Months Ended:
Beginning Balance	3,678,188	$	70,489	$	19.16	915,364	$	20,036	$	21.89
Repurchases on open market	520,843	11,417		21.92		—	—		—
Repurchase from LSF8 in private transaction	—	—		—		1,007,500	19,999		19.85
Ending Balance	4,199,031	$	81,906	$	19.51	1,922,864	$	40,035	$	20.82
For the Nine Months Ended:
Beginning Balance	2,395,049	$	48,479	$	20.24	—	$	—	$	—
Repurchases on open market	903,982	18,937		20.95		2,164	37		17.20
Repurchase from LSF8 in private transaction	900,000	14,490		16.10		1,920,700	39,998		20.82
Ending Balance	4,199,031	$	81,906	$	19.51	1,922,864	$	40,035	$	20.82
(a) Includes commissions paid for repurchases on open market.

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Share-Based Compensation

9 Months Ended

Sep. 30, 2016

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Share-Based Compensation

SHARE-BASED COMPENSATION

For the three and nine months ended September 30, 2016, the Company recognized share-based compensation expenses of $0.6 million and $1.8 million, respectively, compared to $0.2 million and $0.6 million for the three and nine months ended September 30, 2015, respectively.

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Earnings Per Share

9 Months Ended

Sep. 30, 2016

Earnings Per Share [Abstract]

Earnings Per Share

EARNINGS PER SHARE

The following table shows the weighted average number of shares used in computing earnings per share and the effect on the weighted average number of shares of potentially dilutive securities. Potential dilutive common stock has no effect on income available to common stockholders.

F17: Basic and Dilutive Earnings Per Share
	For the Three Months Ended				For the Nine Months Ended
	September 30, 2016		September 30, 2015		September 30, 2016		September 30, 2015
	(dollars in thousands, except for per share amounts)
Net income	$	6,210	$	4,239	$	31,433	$	6,133
Weighted average number of shares outstanding- basic	40,318,741		42,999,654		40,836,000		43,556,876
Effect of dilutive securities:
Restricted stock awards	9,926		12,547		8,132		11,489
Restricted stock units	41,575		9,828		24,384		1,056
Performance restricted stock units	—		5,349		—		—
Stock options	17,943		30,371		11,293		27,557
Total effect of dilutive securities	69,444		58,095		43,809		40,102
Weighted average number of shares outstanding - diluted	40,388,185		43,057,749		40,879,809		43,596,978
Basic earnings per share	$	0.15	$	0.10	$	0.77	$	0.14
Diluted earnings per share	$	0.15	$	0.10	$	0.77	$	0.14

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Fair Value Disclosures

9 Months Ended

Sep. 30, 2016

Fair Value Disclosures [Abstract]

Fair Value Disclosures

FAIR VALUE DISCLOSURES

U.S. GAAP provides a framework for measuring fair value, establishes a fair value hierarchy of the valuation techniques used to measure the fair value and requires certain disclosures relating to fair value measurements. Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants in a market with sufficient activity.

The fair value hierarchy ranks the quality and reliability of the information used to determine fair values. The hierarchy gives highest priority to unadjusted quoted prices in active markets for identical assets or liabilities and the lowest priority to unobservable inputs. The standard describes the following three levels used to classify fair value measurements:

Level 1	Observable inputs such as quoted prices (unadjusted) in active markets for identical assets or liabilities that a Company has the ability to access;
Level 2	Inputs, other than the quoted market prices included in Level 1, which are observable for the asset or liability, either directly or indirectly; and
Level 3	Unobservable inputs for the asset or liability which is typically based on an entity’s own assumptions when there is little, if any, related market data available.

The Company evaluates assets and liabilities subject to fair value measurements on a recurring and non-recurring basis to determine the appropriate level to classify them for each reporting period. This determination requires significant judgments to be made by the Company. The fair values of receivables, accounts payable, accrued costs and other current liabilities approximate the carrying values as a result of the short-term nature of these instruments.

The Company estimates the fair value of its debt by discounting the future cash flows of each instrument using estimated market rates of debt instruments with similar maturities and credit profiles. These inputs are classified as Level 3 within the fair value hierarchy. As of September 30, 2016 and December 31, 2015, the carrying value reported in the consolidated balance sheet for the Company’s notes payable approximated its fair value.

The only assets or liabilities the Company had at September 30, 2016 that are recorded at fair value on a recurring basis are the natural gas hedges and interest rate swaps. The natural gas hedges had a negative fair value of $12,000 as of September 30, 2016, net of tax amount of $6,000, compared to a negative fair value of $0.1 million, net of tax amount of $30,000 as of December 31, 2015. Interest rate swaps had a positive fair value of $8,000 as of September 30, 2016, net of tax amount of less than $4,000. Both the natural gas hedges and interest rate swaps are classified within Level 2 of the fair value hierarchy as they are valued using third party pricing models which contain inputs that are derived from observable market data. Generally, the Company obtains its Level 2 pricing inputs from its counterparties. Substantially all of these assumptions are observable in the marketplace throughout the full term of the instrument, can be derived from observable data or are supported by observable levels at which transactions are executed in the marketplace.

Assets and liabilities that are measured at fair value on a non-recurring basis include intangible assets and goodwill. These items are recognized at fair value when they are considered to be impaired.

There were no fair value adjustments for assets and liabilities measured on a non-recurring basis. The Company discloses fair value information about financial instruments for which it is practicable to estimate that value.

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Significant Accounting Policies (Policies)

9 Months Ended

Sep. 30, 2016

Accounting Policies [Abstract]

Basis of Presentation

The accompanying consolidated financial statements for CBP have been prepared in accordance with accounting principles generally accepted in the United States ("U.S. GAAP").

Consolidation

The consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries. All intercompany transactions have been eliminated.

Basis of Presentation for Interim Periods

Certain information and footnote disclosures normally included for the annual financial statements prepared in accordance with U.S. GAAP have been condensed or omitted for the interim periods presented. Management believes that the unaudited interim financial statements include all adjustments (which are normal and recurring in nature) necessary to present fairly the financial position of the Company and the results of operations and cash flows for the periods presented.

The results of operations for the periods presented are not necessarily indicative of the results that may be expected for the year ending December 31, 2016. Seasonal changes and other conditions can affect the sales volumes of the Company’s products. Therefore, the financial results for any interim period do not necessarily indicate the expected results for the year.

The financial statements should be read in conjunction with CBP’s audited consolidated financial statements and the notes thereto for the year ended December 31, 2015 included in the Company’s Annual Report on Form 10-K for the fiscal year then ended (the "2015 10-K"). The Company has continued to follow the accounting policies set forth in those financial statements.

Recent Accounting Pronouncements

In May 2014, the Financial Accounting Standards Board (the "FASB") issued Accounting Standards Update ("ASU") No. 2014-9, Revenue from Contracts with Customers (Topic 606), which provides accounting guidance for all revenue arising from contracts with customers and affects all entities that enter into contracts to provide goods or services to their customers. In August 2015, the FASB issued ASU No. 2015-14, Revenue from Contracts with Customers (Topic 606): Deferral of the Effective Date, which defers the effective date of ASU No. 2014-9 for all entities by one year to annual reporting periods beginning after December 15, 2017. The ASU requires retroactive application on either a full or modified basis. Early application is permitted as of the original effective date on December 15, 2016. The Company is currently evaluating ASU 2014-9 to determine its impact on its consolidated financial statements and disclosures.

In August 2014, the FASB issued ASU No. 2014-15, Disclosure of Uncertainties about an Entity’s Ability to Continue as a Going Concern: Presentation of Financial Statements— Going Concern (Subtopic 205-40). This ASU defines when and how companies are required to disclose going concern uncertainties, which must be evaluated each interim and annual period. Specifically, it requires management to determine whether substantial doubt exists regarding the entity’s going concern presumption. Substantial doubt about an entity’s ability to continue as a going concern exists when relevant conditions and events, considered in the aggregate, indicate that it is probable that the entity will be unable to meet its obligations as they become due within one year after the date that the financial statements are issued (or available to be issued). If substantial doubt exists, certain disclosures are required; the extent of those disclosures depends on an evaluation of management’s plans (if any) to mitigate the going concern uncertainty. The provisions of ASU 2014-15 will be effective for annual periods ending after December 15, 2016, and to annual and interim periods thereafter. Early adoption is permitted. The ASU should be applied on a prospective basis. The Company believes the adoption of this ASU will not have a material impact on the Company’s disclosures.

In April 2015, the FASB issued ASU 2015-3, Interest—Imputation of Interest (Subtopic 835-30): Simplifying the Presentation of Debt Issuance Costs, which changes the presentation of debt issuance costs in financial statements. Under the ASU, an entity presents such costs in the balance sheet as a direct deduction from the related debt liability. Amortization of the costs is reported as interest expense. The Company adopted ASU 2015-3 during the first quarter of 2016. Upon adoption, the guidance was applied retroactively to all periods presented in the financial statements, therefore, prior period adjustments were made to the December 31, 2015 balance sheet items and related footnotes. The effect of these adjustments was to reduce prepaid and other current assets by $1.6 million, reduce debt issuance costs by $6.5 million and reduce notes payable by $8.1 million. The adoption of this ASU did not have a material impact on the Company’s results of operations.

In February 2016, the FASB issued ASU 2016-02, Leases. ASU 2016-02 requires lessees to recognize a lease liability and a right-of-use asset on the balance sheet. ASU 2016-02 is effective for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. The Company is currently evaluating ASU 2016-02 to determine its impact on its consolidated financial statements and disclosures.

In March 2016, the FASB issued ASU 2016-09, Compensation-Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting, which introduces targeted amendments intended to simplify the accounting for stock compensation. Specifically, the ASU requires all excess tax benefits and tax deficiencies (including tax benefits of dividends on share-based payment awards) to be recognized as income tax expense or benefit in the income statement. The tax effects of exercised or vested awards should be treated as discrete items in the reporting period in which they occur. An entity also should recognize excess tax benefits, and assess the need for a valuation allowance, regardless of whether the benefit reduces taxes payable in the current period. That is, off balance sheet accounting for net operating losses stemming from excess tax benefits would no longer be required and instead such net operating losses would be recognized when they arise. Existing net operating losses that are currently tracked off balance sheet would be recognized, net of a valuation allowance if required, through an adjustment to opening retained earnings in the period of adoption. Entities will no longer need to maintain and track an “APIC pool.” The ASU also requires excess tax benefits to be classified along with other income tax cash flows as an operating activity in the statement of cash flows. The amendments are effective for annual periods beginning after December 15, 2016. Early adoption is permitted. The Company is currently evaluating ASU 2016-09 to determine its impact on its consolidated financial statements and disclosures.

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Receivables, Net (Tables)

9 Months Ended

Sep. 30, 2016

Receivables [Abstract]

Detail of Receivables, Net

F3: Detail of Receivables, Net
	September 30, 2016			December 31, 2015
	(in thousands)
Trade receivables, gross	$	35,352		$	37,800
Allowance for cash discounts and doubtful accounts	(821		)	(1,988		)
Receivables, net	$	34,531		$	35,812

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Inventories (Tables)

9 Months Ended

Sep. 30, 2016

Inventory Disclosure [Abstract]

Composition of Inventories

F4: Composition of Inventories
	September 30, 2016		December 31, 2015
	(in thousands)
Finished products	$	7,158	$	5,454
Raw materials	12,662		14,557
Supplies and other	7,145		7,069
Inventories	$	26,965	$	27,080

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Property, Plant and Equipment, Net (Tables)

9 Months Ended

Sep. 30, 2016

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment Details

F5: Property, Plant and Equipment Details
	September 30, 2016			December 31, 2015
	(in thousands)
Land	$	12,926		$	12,925
Buildings	112,589			112,121
Plant machinery	273,662			272,613
Mobile equipment	6,008			3,837
Construction in progress	8,832			6,812
Property, plant and equipment, at cost	414,017			408,308
Accumulated depreciation	(106,574		)	(81,901		)
Total property, plant and equipment, net	$	307,443		$	326,407

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Customer Relationships and Other Intangibles, Net (Tables)

9 Months Ended

Sep. 30, 2016

Goodwill and Intangible Assets Disclosure [Abstract]

Details of Customer Relationships and Other Intangibles, Net

F6: Details of Customer Relationships and Other Intangibles, Net
	September 30, 2016			December 31, 2015
	(in thousands)
Customer relationships	$	116,410		$	116,073
Purchased and internally developed software	5,688			5,284
Trademarks	14,801			14,759
Customer relationships and other intangibles, at cost	136,899			136,116
Accumulated amortization	(51,794		)	(41,281		)
Customer relationships and other intangibles, net	$	85,105		$	94,835

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Accrued and Other Liabilities (Tables)

9 Months Ended

Sep. 30, 2016

Payables and Accruals [Abstract]

Details of Accrued and Other Liabilities

F7: Details of Accrued and Other Liabilities
	September 30, 2016		December 31, 2015
	(in thousands)
Employee-related costs	$	7,342	$	7,621
Income taxes	826		2,482
Other taxes	3,472		1,390
Other	986		841
Accrued and other liabilities	$	12,626	$	12,334

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Commitments and Contingencies (Tables)

9 Months Ended

Sep. 30, 2016

Commitments and Contingencies Disclosure [Abstract]

Future Minimum Lease Payments Due Under Non-Cancelable Operating Leases and Purchase Commitments by Year

F9: Future Minimum Lease Payments Due Under Noncancellable Operating Leases and Purchase Commitments by Year
	Future Minimum Lease Payments		Purchase Commitments
	(in thousands)
October 1, 2016 through December 31, 2016	$	363	$	15,264
2017	1,183		31,292
2018	616		29,463
2019	1,494		19,870
2020	—		14,185
2021	—		3,232
Thereafter	—		27,173
Total	$	3,656	$	140,479

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Debt (Tables)

9 Months Ended

Sep. 30, 2016

Debt Disclosure [Abstract]

Details of Debt

F12.1: Details of Debt
	September 30, 2016			December 31, 2015
	(in thousands)
First Lien Credit Agreement (a)	$	274,313		$	296,988
Less: Original issue discount (net of amortization)	(2,014		)	(2,372		)
Less: Debt issuance costs	(5,500		)	(8,073		)
Total debt	266,799			286,543
Less: Current portion of long-term debt	(1,746		)	—
Long-term debt	$	265,053		$	286,543
(a) As of September 30, 2016, the First Lien Credit Agreement, as amended and restated, had a maturity date of August 18, 2023 and an interest rate of LIBOR (with a 0.75% floor) plus 2.75%, compared to as of December 31, 2015, at which time the First Lien Credit Agreement had a maturity date of August 28, 2020 and an interest rate of LIBOR (with a 1.00% floor) plus 3.00%. The First Lien Credit Agreement was amended and restated in August 2016 as discussed below.

Future Minimum Principal Payments Due Under the Credit Agreements

F12.2: Future Minimum Principal Payments Due Under the Credit Agreements
	Amount Due
	(in thousands)
2016	$	688
2017	2,750
2018	2,750
2019	2,750
2020	2,750
Thereafter	262,625

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Segment Reporting (Tables)

9 Months Ended

Sep. 30, 2016

Segment Reporting [Abstract]

Segment Reporting

F14.1: Segment Reporting
	For the Three Months Ended						For the Nine Months Ended
	September 30, 2016			September 30, 2015			September 30, 2016			September 30, 2015
	(in thousands)
Net Sales:
Wallboard	$	111,322		$	104,624		$	332,514		$	300,936
Other	3,236			3,526			10,644			10,386
Total net sales	114,558			108,150			343,158			311,322
Operating income:
Wallboard	18,572			11,122			64,192			23,318
Other	(11		)	(64		)	147			(83		)
Total operating income	18,561			11,058			64,339			23,235
Adjustments:
Interest expense	(3,146		)	(4,154		)	(10,492		)	(12,559		)
Loss from equity investment	(291		)	(278		)	(726		)	(530		)
Other expense, net	(5,900		)	(283		)	(5,740		)	(700		)
Income before provision for income taxes	9,224			6,343			47,381			9,446
Depreciation and Amortization:
Wallboard	11,595			12,376			34,836			38,058
Other	273			285			820			873
Total depreciation and amortization	$	11,868		$	12,661		$	35,656		$	38,931

Net Sales By Geographic Region

F14.2: Net Sales By Geographic Region
	For the Three Months Ended				For the Nine Months Ended
	September 30, 2016		September 30, 2015		September 30, 2016		September 30, 2015
	(in thousands)
United States	$	104,704	$	99,956	$	316,040	$	284,707
Canada	9,854		8,194		27,118		26,615
Net sales	$	114,558	$	108,150	$	343,158	$	311,322

Assets By Geographic Region

F14.3: Assets By Geographic Region
	Fixed Assets				Total Assets
	September 30, 2016		December 31, 2015		September 30, 2016		December 31, 2015
	(in thousands)
United States	$	304,352	$	323,361	$	601,906	$	617,878
Canada	3,091		3,046		18,932		17,090
Total	$	307,443	$	326,407	$	620,838	$	634,968

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Treasury Stock (Tables)

9 Months Ended

Sep. 30, 2016

Equity [Abstract]

Treasury Stock Activity

F15: Treasury Stock Activity
	September 30, 2016					September 30, 2015
	Shares	Amount (a)		Average Share Price (a)		Shares	Amount (a)		Average Share Price (a)
	(in thousands, except share data)
For the Three Months Ended:
Beginning Balance	3,678,188	$	70,489	$	19.16	915,364	$	20,036	$	21.89
Repurchases on open market	520,843	11,417		21.92		—	—		—
Repurchase from LSF8 in private transaction	—	—		—		1,007,500	19,999		19.85
Ending Balance	4,199,031	$	81,906	$	19.51	1,922,864	$	40,035	$	20.82
For the Nine Months Ended:
Beginning Balance	2,395,049	$	48,479	$	20.24	—	$	—	$	—
Repurchases on open market	903,982	18,937		20.95		2,164	37		17.20
Repurchase from LSF8 in private transaction	900,000	14,490		16.10		1,920,700	39,998		20.82
Ending Balance	4,199,031	$	81,906	$	19.51	1,922,864	$	40,035	$	20.82
(a) Includes commissions paid for repurchases on open market.

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Earnings Per Share (Tables)

9 Months Ended

Sep. 30, 2016

Earnings Per Share [Abstract]

Basic and Dilutive Earnings Per Share

The following table shows the weighted average number of shares used in computing earnings per share and the effect on the weighted average number of shares of potentially dilutive securities. Potential dilutive common stock has no effect on income available to common stockholders.

F17: Basic and Dilutive Earnings Per Share
	For the Three Months Ended				For the Nine Months Ended
	September 30, 2016		September 30, 2015		September 30, 2016		September 30, 2015
	(dollars in thousands, except for per share amounts)
Net income	$	6,210	$	4,239	$	31,433	$	6,133
Weighted average number of shares outstanding- basic	40,318,741		42,999,654		40,836,000		43,556,876
Effect of dilutive securities:
Restricted stock awards	9,926		12,547		8,132		11,489
Restricted stock units	41,575		9,828		24,384		1,056
Performance restricted stock units	—		5,349		—		—
Stock options	17,943		30,371		11,293		27,557
Total effect of dilutive securities	69,444		58,095		43,809		40,102
Weighted average number of shares outstanding - diluted	40,388,185		43,057,749		40,879,809		43,596,978
Basic earnings per share	$	0.15	$	0.10	$	0.77	$	0.14
Diluted earnings per share	$	0.15	$	0.10	$	0.77	$	0.14

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Background and Nature of Operations - Description of Business and Acquisition (Detail) $ in Millions	Aug. 30, 2013 USD ($)	Sep. 30, 2016 facility
Lone Star Fund VIII (U.S.), L.P. | Lafarge N.A.
Business Acquisition [Line Items]
Total purchase price | $	$ 703
Wallboard
Business Acquisition [Line Items]
Number of operating facilities (facility)		3
Joint Compound
Business Acquisition [Line Items]
Number of operating facilities (facility)		1

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Background and Nature of Operations - Public Offerings (Detail) $ / shares in Units, $ in Millions								3 Months Ended		9 Months Ended
	Mar. 18, 2016 $ / shares shares	Sep. 16, 2015 $ / shares shares	Jun. 03, 2015 $ / shares shares	May 15, 2015 $ / shares shares	Mar. 18, 2015 $ / shares shares	Feb. 10, 2014 USD ($) $ / shares shares	Feb. 03, 2014	Sep. 30, 2016 shares	Sep. 30, 2015 shares	Sep. 30, 2016 shares	Sep. 30, 2015 USD ($) shares
Repurchase from LSF8 in private transaction
Subsidiary, Sale of Stock [Line Items]
Shares repurchased (shares) | shares	900,000	1,007,500		913,200				0	1,007,500	900,000	1,920,700
Term Loan Facility | Second Lien Credit Agreement
Subsidiary, Sale of Stock [Line Items]
Repayments of debt through cash on hand						$ 6.1
Repurchased face amount						155.0
Prepayment premium						$ 3.1
Initial Public Offering
Subsidiary, Sale of Stock [Line Items]
Shares issued at public offering (shares) | shares						11,765,000
Offering price per share (usd per share) | $ / shares						$ 14.00
Net proceeds after underwriting discounts and commissions						$ 154.0
One-time payment to Lone Star for termination of asset advisory agreement						2.0
Initial Public Offering | Common Stock
Subsidiary, Sale of Stock [Line Items]
Stock split ratio (shares)							32,304
Initial Public Offering | Term Loan Facility | Second Lien Credit Agreement
Subsidiary, Sale of Stock [Line Items]
Repayment of debt through net proceeds from IPO						$ 152.0
Secondary Public Offerings | Certain Officers and Former CEO | LSF8 Gypsum Holdings, L.P. Long-Term Incentive Plan, Earned Incentive Payment
Subsidiary, Sale of Stock [Line Items]
Incentive payments											$ 29.9
Secondary Public Offerings | LSF8 Gypsum Holdings, L.P.
Subsidiary, Sale of Stock [Line Items]
Shares issued at public offering (shares) | shares	5,106,803	4,600,000	361,747	4,600,000	5,000,000
Offering price per share (usd per share) | $ / shares	$ 16.10	$ 19.85	$ 21.90	$ 21.90	$ 19.40
Secondary Public Offerings | LSF8 Gypsum Holdings, L.P. | Repurchase from LSF8 in private transaction
Subsidiary, Sale of Stock [Line Items]
Shares repurchased (shares) | shares	900,000

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Significant Accounting Policies (Detail) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Debt issuance cost	$ 5,500	$ 8,073
Prepaid Expenses and Other Current Assets | Accounting Standards Update 2015-03
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Debt issuance cost		(1,600)
Debt Issuance Costs, Line of Credit Arrangements, Net | Accounting Standards Update 2015-03
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Debt issuance cost		(6,500)
Notes Payable | Accounting Standards Update 2015-03
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Debt issuance cost		$ 8,100

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Receivables, Net - Detail of Receivables, Net (Detail) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Receivables [Abstract]
Trade receivables, gross	$ 35,352	$ 37,800
Allowance for cash discounts and doubtful accounts	(821)	(1,988)
Receivables, net	$ 34,531	$ 35,812

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Inventories (Detail) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Inventory Disclosure [Abstract]
Finished products	$ 7,158	$ 5,454
Raw materials	12,662	14,557
Supplies and other	7,145	7,069
Inventories	$ 26,965	$ 27,080

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Property, Plant and Equipment, Net - Property, Plant and Equipment Details (Detail) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Property, Plant and Equipment [Line Items]
Property, plant and equipment, at cost	$ 414,017	$ 408,308
Accumulated depreciation	(106,574)	(81,901)
Total property, plant and equipment, net	307,443	326,407
Land
Property, Plant and Equipment [Line Items]
Property, plant and equipment, at cost	12,926	12,925
Buildings
Property, Plant and Equipment [Line Items]
Property, plant and equipment, at cost	112,589	112,121
Plant machinery
Property, Plant and Equipment [Line Items]
Property, plant and equipment, at cost	273,662	272,613
Mobile equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, at cost	6,008	3,837
Construction in progress
Property, Plant and Equipment [Line Items]
Property, plant and equipment, at cost	$ 8,832	$ 6,812

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Property, Plant and Equipment, Net - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Property, Plant and Equipment [Abstract]
Depreciation expense	$ 8.5	$ 8.7	$ 25.2	$ 26.5

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Customer Relationships and Other Intangibles, Net - Details of Customer Relationships and Other Intangibles, Net (Detail) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Goodwill and Intangible Assets Disclosure [Abstract]
Customer relationships	$ 116,410	$ 116,073
Purchased and internally developed software	5,688	5,284
Trademarks	14,801	14,759
Customer relationships and other intangibles, at cost	136,899	136,116
Accumulated amortization	(51,794)	(41,281)
Customer relationships and other intangibles, net	$ 85,105	$ 94,835

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Customer Relationships and Other Intangibles, Net - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Finite-Lived Intangible Assets [Line Items]
Amortization expense	$ 3.4	$ 4.0	$ 10.4	$ 12.4
Selling, General and Administrative Expenses
Finite-Lived Intangible Assets [Line Items]
Amortization expense related to capitalized software	$ 0.4	$ 0.4	$ 1.2	$ 1.1
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life			15 years
Trademarks
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life			15 years
Purchased and internally developed software
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life			3 years

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Accrued and Other Liabilities (Detail) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Payables and Accruals [Abstract]
Employee-related costs	$ 7,342	$ 7,621
Income taxes	826	2,482
Other taxes	3,472	1,390
Other	986	841
Accrued and other liabilities	$ 12,626	$ 12,334

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Income Taxes (Detail)	9 Months Ended
	Sep. 30, 2016
Income Tax Disclosure [Abstract]
Effective income tax rate, percent	33.80%

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Commitments and Contingencies - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015
Commitments and Contingencies Disclosure [Abstract]
Rent expense	$ 1.0	$ 1.2	$ 3.1	$ 3.3
Letter of Credit
Long-term Purchase Commitment [Line Items]
Outstanding amount of letters of credit	2.1		2.1		$ 3.0
Gas, Gypsum, Paper, and Other Raw Materials
Long-term Purchase Commitment [Line Items]
Non capital purchased under commitments	$ 16.4	$ 17.6	$ 49.5	$ 50.4

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Commitments and Contingencies - Future Minimum Lease Payments Due Under Non-Cancelable Operating Leases and Purchase Commitments by Year (Detail) $ in Thousands	Sep. 30, 2016 USD ($)
Future Minimum Lease Payments
October 1, 2016 through December 31, 2016	$ 363
2017	1,183
2018	616
2019	1,494
2020	0
2021	0
Thereafter	0
Total	3,656
Purchase Commitments
October 1, 2016 through December 31, 2016	15,264
2017	31,292
2018	29,463
2019	19,870
2020	14,185
2021	3,232
Thereafter	27,173
Total	$ 140,479

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Related Party Transactions - Additional Information (Detail) $ in Millions	9 Months Ended
	Sep. 30, 2015 USD ($)
LSF8 Gypsum Holdings, L.P. Long-Term Incentive Plan, Earned Incentive Payment | Secondary Public Offerings | Certain Officers and Former CEO
Related Party Transaction [Line Items]
Incentive payments	$ 29.9

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Investment in Seven Hills - Additional Information (Detail) - Seven Hills - Variable Interest Entity, Not Primary Beneficiary - Equity Method Investee - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Schedule of Equity Method Investments [Line Items]
Cost of paperboard	$ 11.1	$ 11.8	$ 34.0	$ 34.2
Purchase commitments			$ 33.0

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Debt - Details of Debt (Detail) - USD ($) $ in Thousands		1 Months Ended	4 Months Ended	9 Months Ended	12 Months Ended
	Aug. 18, 2016	May 31, 2014	Apr. 30, 2014	Sep. 30, 2016	Dec. 31, 2015
Debt Instrument [Line Items]
Less: Original issue discount (net of amortization)				$ (2,014)	$ (2,372)
Less: Debt issuance costs				(5,500)	(8,073)
Total debt				266,799	286,543
Less: Current portion of long-term debt				(1,746)	0
Long-term debt				265,053	286,543
Term Loan Facility | First Lien Credit Agreement
Debt Instrument [Line Items]
First Lien Credit Agreement (a)				$ 274,313	$ 296,988
Term Loan Facility | First Lien Credit Agreement | London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Floor rate	0.75%			1.00%	1.00%
Debt, variable interest rate	2.75%	3.25%	3.75%	3.00%	3.00%

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Debt - Additional Information (Detail)			1 Months Ended	3 Months Ended			4 Months Ended	9 Months Ended		12 Months Ended
	Aug. 18, 2016 USD ($)	Aug. 30, 2013 USD ($)	May 31, 2014	Sep. 30, 2016 USD ($) covenant	Sep. 30, 2015 USD ($)	Sep. 30, 2014	Apr. 30, 2014	Sep. 30, 2016 USD ($) covenant	Sep. 30, 2015 USD ($)	Dec. 31, 2015 USD ($)	Dec. 02, 2013 USD ($)
Debt Instrument [Line Items]
Loss on debt extinguishment								$ 5,802,000	$ 0
Pre payment of principal for the first lien credit agreement								25,688,000	35,000,000
Long-term debt before unamortized discount				$ 2,750,000				2,750,000
Interest paid				$ 2,600,000	$ 3,400,000			$ 8,500,000	10,300,000
First Lien Credit Agreement
Debt Instrument [Line Items]
Loss on debt extinguishment	$ 3,300,000
Number of covenants | covenant				1				1
Debt covenant trigger, line of credit facility amount less letters of credit threshold				$ 22,500,000.0				$ 22,500,000.0
First Lien Credit Agreement | Maximum
Debt Instrument [Line Items]
Leverage ratio (no greater than)								5.0
Term Loan Facility | First Lien Credit Agreement
Debt Instrument [Line Items]
Debt principal amount	275,000,000	$ 320,000,000									$ 415,000,000.0
Debt issuance cost		15,300,000
Discount and debt issuance costs	4,700,000			$ 2,200,000				$ 2,200,000
Discount and debt issuance costs recorded in other expense, net	$ 2,500,000
Leverage ratio (less than)			4
Pre payment of principal for the first lien credit agreement								$ 25,700,000	35,000,000
Effective interest rate				4.00%				4.00%
Term Loan Facility | First Lien Credit Agreement | London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Floor rate	0.75%			1.00%				1.00%		1.00%
Decrease in basis spread, percentage			0.50%
Debt, variable interest rate	2.75%		3.25%				3.75%	3.00%		3.00%
Term Loan Facility | First Lien Credit Agreement | Moody's, B2 Rating | London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Decrease in basis spread, percentage						0.25%
Debt, variable interest rate						3.00%
Term Loan Facility | Second Lien Credit Agreement
Debt Instrument [Line Items]
Debt principal amount		120,000,000
Line of Credit | First Lien Credit Agreement | Revolving Credit Facility
Debt Instrument [Line Items]
Proceeds from line of credit		25,000,000						$ 22,000,000	10,000,000
Line of credit facility borrowing capacity	$ 75,000,000	$ 50,000,000
Outstanding amount				$ 0				0		$ 0
Repayment amount								$ 22,000,000	$ 10,000,000
Facility fee, basis points								0.50%
Remaining outstanding				$ 72,900,000				$ 72,900,000
Line of Credit | First Lien Credit Agreement | Revolving Credit Facility | London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Debt, variable interest rate								2.25%

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Debt - Future Minimum Principal Payments Due Under the Credit Agreements (Detail) $ in Thousands	Sep. 30, 2016 USD ($)
Long-term Debt, Fiscal Year Maturity [Abstract]
2016	$ 688
2017	2,750
2018	2,750
2019	2,750
2020	2,750
Long-term Debt, Maturities, Repayments of Principal after Year Five	$ 262,625

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Derivative Instruments - Additional Information (Detail)	1 Months Ended	3 Months Ended	9 Months Ended
	Sep. 30, 2016 USD ($) MMBTU	Sep. 30, 2016 USD ($)	Sep. 30, 2016 USD ($) MMBTU	Dec. 31, 2015 USD ($)
Derivative [Line Items]
Net unrealized gain (loss) that remained in accumulated other comprehensive loss	$ 301,757,000	$ 301,757,000	$ 301,757,000	$ 300,766,000
Gain (loss) on derivatives qualifying as cash flow hedges, net of tax			100,000
Derivatives, net liability position	(6,000)	(6,000)	(6,000)
Collateral posted with counterparties related to derivatives	0	0	$ 0
Natural Gas Swap | Cash Flow Hedging | Designated as Hedging Instrument
Derivative [Line Items]
Aggregate notional amount outstanding (in mmBTUs) | MMBTU			630,000
Gain (loss) on derivatives qualifying as cash flow hedges, net of tax		(200,000)
Income tax expense (benefit) recognized in other comprehensive income		59,000	$ (25,000)
Loss reclassified from accumulated other comprehensive income, before tax		100,000	300,000
Natural Gas Swap | Cash Flow Hedging | Designated as Hedging Instrument | Accrued and Other Liabilities
Derivative [Line Items]
Amount recorded in other current liabilities	(45,000)	(45,000)	(45,000)	(300,000)
Natural Gas Swap | Cash Flow Hedging | Designated as Hedging Instrument | Prepaid Expenses and Other Current Assets
Derivative [Line Items]
Amount recorded in other current assets	0	0	0	$ 200,000
Natural Gas Swap | Cash Flow Hedging | Designated as Hedging Instrument | Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent
Derivative [Line Items]
Net unrealized gain (loss) that remained in accumulated other comprehensive loss	(12,000)	(12,000)	(12,000)
Net unrealized gain (loss) that remained in accumulated other comprehensive loss, tax	$ (6,000)	$ (6,000)	$ (6,000)
Interest Rate Cap | Cash Flow Hedging | Designated as Hedging Instrument | London Interbank Offered Rate (LIBOR)
Derivative [Line Items]
Cap rate	2.00%	2.00%	2.00%
Interest Rate Swap | Cash Flow Hedging | Designated as Hedging Instrument
Derivative [Line Items]
Derivative instrument term (not beyond)	4 years
Aggregate notional amount outstanding (in mmBTUs) | MMBTU	100,000,000
Gain (loss) on derivatives qualifying as cash flow hedges, net of tax		$ 8,000	$ 8,000
Income tax expense (benefit) recognized in other comprehensive income		$ (4,000)	$ 4,000
Average fixed rate	1.323%	1.323%	1.323%
Interest Rate Swap | Cash Flow Hedging | Designated as Hedging Instrument | London Interbank Offered Rate (LIBOR)
Derivative [Line Items]
Floor rate	0.75%	0.75%	0.75%
Interest Rate Swap | Cash Flow Hedging | Designated as Hedging Instrument | Accrued and Other Liabilities
Derivative [Line Items]
Amount recorded in other current liabilities	$ (100,000)	$ (100,000)	$ (100,000)
Interest Rate Swap | Cash Flow Hedging | Designated as Hedging Instrument | Prepaid Expenses and Other Current Assets
Derivative [Line Items]
Amount recorded in other current assets	100,000	100,000	100,000
Interest Rate Swap | Cash Flow Hedging | Designated as Hedging Instrument | Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent
Derivative [Line Items]
Net unrealized gain (loss) that remained in accumulated other comprehensive loss	8,000	8,000	8,000
Net unrealized gain (loss) that remained in accumulated other comprehensive loss, tax	$ 4,000	$ 4,000	$ 4,000
Maximum
Derivative [Line Items]
Derivative instrument term (not beyond)			1 year

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Segment Reporting - Additional Information (Detail) - geographic_area	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Segment Reporting Information [Line Items]
Number of geographical areas (geographic area)	2		2
Wallboard | Sales Revenue, Net | Product Concentration Risk
Segment Reporting Information [Line Items]
Percentage of revenues	97.20%	96.70%	96.90%	96.70%

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Segment Reporting - Segment Reporting (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Net Sales:
Net Sales	$ 114,558	$ 108,150	$ 343,158	$ 311,322
Operating income:
Operating income	18,561	11,058	64,339	23,235
Adjustments:
Interest expense	(3,146)	(4,154)	(10,492)	(12,559)
Loss from equity investment	(291)	(278)	(726)	(530)
Other expense, net	(5,900)	(283)	(5,740)	(700)
Income before provision for income taxes	9,224	6,343	47,381	9,446
Depreciation and Amortization
Total depreciation and amortization	11,868	12,661	35,656	38,931
Operating Segments | Wallboard
Net Sales:
Net Sales	111,322	104,624	332,514	300,936
Operating income:
Operating income	18,572	11,122	64,192	23,318
Depreciation and Amortization
Total depreciation and amortization	11,595	12,376	34,836	38,058
Operating Segments | Other
Net Sales:
Net Sales	3,236	3,526	10,644	10,386
Operating income:
Operating income	(11)	(64)	147	(83)
Depreciation and Amortization
Total depreciation and amortization	273	285	820	873
Adjustments
Adjustments:
Interest expense	(3,146)	(4,154)	(10,492)	(12,559)
Loss from equity investment	(291)	(278)	(726)	(530)
Other expense, net	$ (5,900)	$ (283)	$ (5,740)	$ (700)

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Segment Reporting - Net Sales by Geographic Region (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	$ 114,558	$ 108,150	$ 343,158	$ 311,322
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	104,704	99,956	316,040	284,707
Canada
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	$ 9,854	$ 8,194	$ 27,118	$ 26,615

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Segment Reporting - Assets by Geographic Region (Detail) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Revenues from External Customers and Long-Lived Assets [Line Items]
Fixed Assets	$ 307,443	$ 326,407
Total Assets	620,838	634,968
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Fixed Assets	304,352	323,361
Total Assets	601,906	617,878
Canada
Revenues from External Customers and Long-Lived Assets [Line Items]
Fixed Assets	3,091	3,046
Total Assets	$ 18,932	$ 17,090

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Treasury Stock - Additional Information (Detail) - USD ($)				3 Months Ended				9 Months Ended		12 Months Ended
	Mar. 18, 2016	Sep. 16, 2015	May 15, 2015	Sep. 30, 2016	Mar. 31, 2016	Sep. 30, 2015	Mar. 31, 2015	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015	Dec. 31, 2014	Aug. 03, 2016	Nov. 04, 2015
Equity, Class of Treasury Stock [Line Items]
Number of common stock shares repurchased, value per share (usd per share)				$ 19.51	$ 19.16	$ 20.82	$ 21.89	$ 19.51	$ 20.82	$ 20.24	$ 0.00
Stock repurchase program authorized amount (up to)												$ 100,000,000	$ 50,000,000
Stock repurchase program, increase in authorized amount												$ 50,000,000.0
Repurchase from LSF8 in private transaction
Equity, Class of Treasury Stock [Line Items]
Number of common stock shares repurchased (shares)	900,000	1,007,500	913,200	0		1,007,500		900,000	1,920,700
Number of common stock shares repurchased, value per share (usd per share)	$ 16.10	$ 19.85	$ 21.90	$ 0.00		$ 19.85		$ 16.10	$ 20.82
Aggregate value of common stock shares repurchased	$ 14,500,000	$ 20,000,000	$ 20,000,000	$ 0		$ 19,999,000		$ 14,490,000	$ 39,998,000

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Treasury Stock - Treasury Stock Activity (Detail) - USD ($) $ / shares in Units, $ in Thousands				3 Months Ended				9 Months Ended		12 Months Ended
	Mar. 18, 2016	Sep. 16, 2015	May 15, 2015	Sep. 30, 2016	Mar. 31, 2016	Sep. 30, 2015	Mar. 31, 2015	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015	Dec. 31, 2014
Treasury Stock [Roll Forward]
Beginning balance (shares)					2,395,049	1,922,864	0	2,395,049	0	0
Beginning balance					$ 48,479	$ 40,035	$ 0	$ 48,479	$ 0	$ 0
Ending balance (shares)				4,199,031	3,678,188		915,364	4,199,031		2,395,049	0
Ending balance				$ 81,906	$ 70,489		$ 20,036	$ 81,906		$ 48,479	$ 0
Average share price (usd per share)				$ 19.51	$ 19.16	$ 20.82	$ 21.89	$ 19.51	$ 20.82	$ 20.24	$ 0.00
Repurchases on open market
Treasury Stock [Roll Forward]
Shares repurchased (shares)				520,843		0		903,982	2,164
Shares repurchased				$ 11,417		$ 0		$ 18,937	$ 37
Average share price (usd per share)				$ 21.92		$ 0.00		$ 20.95	$ 17.20
Repurchase from LSF8 in private transaction
Treasury Stock [Roll Forward]
Shares repurchased (shares)	900,000	1,007,500	913,200	0		1,007,500		900,000	1,920,700
Shares repurchased	$ 14,500	$ 20,000	$ 20,000	$ 0		$ 19,999		$ 14,490	$ 39,998
Average share price (usd per share)	$ 16.10	$ 19.85	$ 21.90	$ 0.00		$ 19.85		$ 16.10	$ 20.82

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Share-Based Compensation - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Compensation expense	$ 0.6	$ 0.2	$ 1.8	$ 0.6

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Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Net income	$ 6,210	$ 4,239	$ 31,433	$ 6,133
Weighted average number of shares outstanding- basic (shares)	40,318,741	42,999,654	40,836,000	43,556,876
Effect of dilutive securities:
Total effect of dilutive securities (shares)	69,444	58,095	43,809	40,102
Weighted average number of shares outstanding - diluted (shares)	40,388,185	43,057,749	40,879,809	43,596,978
Basic earnings per share (usd per share)	$ 0.15	$ 0.10	$ 0.77	$ 0.14
Diluted earnings per share (usd per share)	$ 0.15	$ 0.10	$ 0.77	$ 0.14
Restricted stock awards
Effect of dilutive securities:
Effect of dilutive securities (shares)	9,926	12,547	8,132	11,489
Restricted stock units
Effect of dilutive securities:
Effect of dilutive securities (shares)	41,575	9,828	24,384	1,056
Performance restricted stock units
Effect of dilutive securities:
Effect of dilutive securities (shares)	0	5,349	0	0
Stock options
Effect of dilutive securities:
Effect of dilutive securities (shares)	17,943	30,371	11,293	27,557

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Fair Value Disclosures (Details) - Recurring - Level 2 - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Natural Gas Swap
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liability	$ 12	$ 100
Tax on derivative instruments	6	$ 30
Interest Rate Swap
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset	8
Tax on derivative instruments	$ 4