Green Brick Partners (GRBK) 10-Q 12 Nov 15 2015 Q3 Quarterly report Financial data

Document And Entity Information

Document And Entity Information - shares	9 Months Ended
	Sep. 30, 2015	Nov. 06, 2015
Document And Entity Information [Abstract]
Entity Registrant Name	Green Brick Partners, Inc.
Entity Central Index Key	1,373,670
Current Fiscal Year End Date	--12-31
Entity Filer Category	Smaller Reporting Company
Document Type	10-Q
Document Period End Date	Sep. 30, 2015
Document Fiscal Year Focus	2,015
Document Fiscal Period Focus	Q3
Amendment Flag	false
Entity Common Stock, Shares Outstanding		48,813,889

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Assets
Cash and cash equivalents	$ 14,405	$ 21,267
Restricted cash	2,297	1,709
Accounts receivable	726	749
Inventory	318,027	274,303
Investment in direct financing leases	0	2,768
Property and equipment, net	1,922	1,629
Earnest money deposits	16,641	6,676
Deferred income tax assets, net	83,446	89,197
Other assets	2,666	2,027
Total assets	440,130	400,325
Liabilities and stockholders' equity
Accounts payable	14,303	13,551
Accrued expenses	7,807	11,299
Customer and builder deposits	8,393	9,752
Obligations related to land not owned under option agreements	20,169	7,914
Borrowings on lines of credit	13,960	14,061
Notes payable	11,458	12,151
Term loan facility	0	150,000
Total liabilities	76,090	218,728
Commitments and contingencies (Note 11)	0	0
Stockholders’ equity
Common shares, $0.01 par value: 100,000,000 shares authorized; 48,813,889 and 31,346,084 issued and outstanding as of September 30, 2015 and December 31, 2014, respectively	488	313
Additional paid-in capital	271,752	101,626
Retained earnings	80,551	69,919
Total Green Brick Partners, Inc. stockholders’ equity	352,791	171,858
Noncontrolling interests	11,249	9,739
Total stockholders’ equity	364,040	181,597
Total liabilities and stockholders’ equity	$ 440,130	$ 400,325

Consolidated Balance Sheets _Pa

Consolidated Balance Sheets [Parenthetical] - $ / shares	Sep. 30, 2015	Dec. 31, 2014
Statement of Financial Position [Abstract]
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	100,000,000	100,000,000
Common stock, shares outstanding (in shares)	48,813,889	31,346,084

Consolidated Statements of Inco

Consolidated Statements of Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Income Statement [Abstract]
Sale of residential units	$ 69,165	$ 39,901	$ 179,195	$ 144,586
Sale of land and lots	6,033	9,775	26,442	33,942
Total revenues	75,198	49,676	205,637	178,528
Cost of residential units	55,173	27,232	137,095	105,844
Cost of land and lots	4,217	7,420	19,095	25,329
Total cost of sales	59,390	34,652	156,190	131,173
Total gross profit	15,808	15,024	49,447	47,355
Salary expense	(5,062)	(3,631)	(14,571)	(9,608)
Management fees expense – related party	0	(390)	0	(1,160)
Selling, general and administrative expense	(3,385)	(4,639)	(9,700)	(9,412)
Operating profit	7,361	6,364	25,176	27,175
Interest expense	0	(308)	(281)	(1,016)
Depreciation and amortization expense	(621)	(168)	(1,209)	(415)
Interest and fees income	0	44	0	295
Interest on direct financing leases income	0	139	13	568
Other income (expense), net	402	(8)	1,008	474
Income before provision for income taxes	7,142	6,063	24,707	27,081
Income tax provision	1,856	0	6,229	338
Net income	5,286	6,063	18,478	26,743
Less: net income attributable to noncontrolling interests	2,460	2,369	7,846	8,290
Net income attributable to Green Brick Partners, Inc.	$ 2,826	$ 3,694	$ 10,632	$ 18,453
Net income attributable to Green Brick Partners, Inc. per common share:
Basic (in dollars per share)	$ 0.06	$ 0.33	$ 0.29	$ 1.66
Diluted (in dollars per share)	$ 0.06	$ 0.33	$ 0.29	$ 1.66
Weighted average common shares used in the calculation of net income attributable to Green Brick Partners, Inc. per common share:
Weighted-average number of shares outstanding —basic (shares)	48,495	11,109	37,125	11,109
Weighted-average number of shares outstanding —diluted (shares)	48,595	11,109	37,161	11,109

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Cash flows from operating activities:
Net income	$ 18,478	$ 26,743
Adjustments to reconcile net income to net cash (used in) provided by operating activities:
Depreciation and amortization expense	1,209	415
Share-based compensation	318	0
Deferred income taxes, net	5,751	0
Changes in operating assets and liabilities
Increase in restricted cash	(588)	(604)
Decrease in accounts receivable	22	364
Increase in inventory	(31,470)	(27,657)
Increase in earnest money deposits	(9,965)	(3,891)
Increase in other assets	(1,143)	(536)
Increase in accounts payable	752	5,420
(Decrease) increase in accrued expenses	(3,492)	3,861
(Decrease) increase in customer and builder deposits	(1,358)	624
Net cash (used in) provided by operating activities	(21,486)	4,739
Cash flows from investing activities
Proceeds from sale of investment in direct financing leases	2,768	2,420
Issuance of notes receivable	0	(1,905)
Repayments of notes receivable	0	9,461
Acquisition of property and equipment	(998)	(1,217)
Net cash provided by investing activities	1,770	8,759
Cash flows from financing activities
Borrowings from lines of credit	42,460	9,500
Proceeds from notes payable	3,206	5,741
Repayments of lines of credit	(42,561)	(1,364)
Repayments of notes payable	(3,898)	(19,984)
Repayments of term loan facility	(150,000)	0
Proceeds from equity offering, net of issuance costs	169,983	0
Contributions from noncontrolling interests	87	592
Distributions to controlling interests	0	(5,782)
Distributions to noncontrolling interests	(6,423)	(11,439)
Net cash provided by (used in) financing activities	12,854	(22,736)
Net cash provided by (used in) financing activities	(6,862)	(9,238)
Cash and cash equivalents at beginning of period	21,267	16,683
Cash and cash equivalents at beginning of period	14,405	7,445
Supplemental disclosure of cash flow information:
Cash paid for interest, net of capitalized interest	9,168	1,053
Cash paid for taxes	1,143	383
Supplemental disclosure of noncash investing and financing activities:
Increase in land not owned under option agreements	$ (12,255)	$ 0

Basis of Presentation and Signi

Basis of Presentation and Significant Accounting Policies	9 Months Ended
	Sep. 30, 2015
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation and Significant Accounting Policies	BASIS OF PRESENTATION AND SIGNIFICANT ACCOUNTING POLICIES When used in these notes, references to the “Company”, “Green Brick”, “we”, “us” or “our” refer to the combined company, which has been renamed Green Brick Partners, Inc. and its subsidiaries, resulting from the acquisition by BioFuel Energy Corp. and its then consolidated subsidiaries (“BioFuel”) of JBGL Builder Finance LLC and its consolidated subsidiaries and affiliated companies (collectively, “Builder Finance”), and JBGL Capital Companies (“Capital”), a combined group of commonly managed limited liability companies and partnerships (collectively with Builder Finance, “JBGL”) by means of a reverse recapitalization transaction on October 27, 2014. Green Brick Partners, Inc. (formerly named BioFuel Energy Corp.) was incorporated as a Delaware corporation on April 11, 2006, to invest solely in BioFuel Energy, LLC, a limited liability company organized on January 25, 2006, to build and operate ethanol production facilities in the Midwestern United States. On November 22, 2013, the Company disposed of its ethanol plants and all related assets. Following the disposition of these production facilities, we were a public shell company with no substantial operations. On June 10, 2014, the Company entered into a definitive transaction agreement with the owners of JBGL, which provided that we would acquire JBGL for $275 million , payable in cash and shares of our common stock (the “Transaction”). JBGL is a real estate operator involved in the purchase and development of land for residential use, construction lending and home building operations. The Transaction was completed on October 27, 2014 (the “Transaction Date”). Pursuant to the terms of the Transaction, we paid the $275 million purchase price with approximately $191.8 million in cash and the remainder in 11,108,500 shares of our common stock valued at approximately $7.49 per share. The cash portion of the purchase price was primarily funded from the proceeds of a $70.0 million rights offering conducted by the Company (the $70.0 million includes proceeds from purchases of shares of common stock by certain funds and accounts managed by Greenlight Capital, Inc. and its affiliates (“Greenlight”) and Third Point LLC and its affiliates (“Third Point”)) and $150.0 million of debt financing provided by Greenlight pursuant to a loan agreement, with the lenders from time to time party thereto (the “Loan Agreement”). The $70.0 million rights offering included a registered offering by the Company of transferable rights to the public holders of its common stock, as of September 15, 2014 (the “Rights Offering”) to purchase additional shares of common stock. Each right permitted the holder to purchase, at a rights price ultimately equal to $5.00 per share of common stock, 2.2445 shares of common stock. 4,843,384 shares of common stock were purchased in the public Rights Offering for aggregate gross proceeds of approximately $24.2 million . In addition to the Rights Offering, Greenlight and Third Point participated in a private rights offering to purchase additional shares of common stock pursuant to commitment letters. Pursuant to its commitment letter, Third Point agreed to participate in the private rights offering for its full basic subscription privilege in the Rights Offering and to purchase, simultaneously with the consummation of the Rights Offering to the public, all of the available shares not otherwise sold in the Rights Offering following the exercise of all other public holders’ basic subscription privileges. Pursuant to such commitment letters, Greenlight purchased 4,957,618 shares of common stock for aggregate gross proceeds of approximately $24.8 million and Third Point purchased 4,198,998 shares of common stock for aggregate gross proceeds of approximately $21.0 million . At the time the Transaction was completed, BioFuel was a non-operating public shell corporation with nominal operations and assets consisting of cash, deferred tax assets, and nominal other nonoperating assets. As a result of the Transaction the owners and management of JBGL gained effective operating control of the combined company. As of the Transaction Date, BioFuel did not meet the definition of a business for accounting purposes. Accordingly, for financial reporting purposes, the Transaction was deemed to be a capital transaction in substance and recorded as a reverse recapitalization of JBGL whereby JBGL is deemed to be the continuing, surviving entity for accounting purposes, but through reorganization, has deemed to have adopted the capital structure of BioFuel. Because the acquisition was considered a reverse recapitalization for accounting purposes, the combined historical financial statements of JBGL became our historical financial statements and from the completion of the acquisition on October 27, 2014, the financial statements have been prepared on a consolidated basis. The assets and liabilities of BioFuel have been brought forward at their book value and no goodwill has been recognized in connection with the Transaction. As a result of the Transaction, Green Brick changed its business direction and is now in the real estate industry. We are a uniquely structured company that combines residential land development and homebuilding. We acquire and develop land, provide land and construction financing to our controlled builders and participate in the profits of our controlled builders. Our core markets are in the high growth U.S. metropolitan areas of Dallas, Texas and Atlanta, Georgia. We are engaged in all aspects of the homebuilding process, including land acquisition and development, entitlements, design, construction, marketing and sales and the creation of brand images at our residential neighborhoods and master planned communities. The consolidated financial statements set forth in this Quarterly Report on Form 10-Q consist of JBGL and BioFuel Energy, LLC. The consolidated financial statements for all periods prior to the reverse recapitalization are the historical financial statements of JBGL, and have been retroactively restated to give effect to the Transaction. Basis of Presentation and Principles of Consolidation The unaudited consolidated financial statements have been prepared in accordance with United States generally accepted accounting principles (“GAAP”) as set forth in the Financial Accounting Standards Board’s (“FASB”) Accounting Standards Codification (“ASC”) and applicable regulations of the Securities and Exchange Commission (“SEC”), but do not include all of the information and footnotes required for complete financial statements. In the opinion of management, the accompanying consolidated financial statements for the periods presented reflect all adjustments, of a normal, recurring nature, necessary to fairly state our financial position, results of operations and cash flows. These consolidated financial statements should be read in conjunction with our audited consolidated financial statements for the year ended December 31, 2014, included in our Annual Report on Form 10-K filed with the SEC on March 31, 2015. Our operating results for the three months ended September 30, 2015 are not necessarily indicative of the results that may be expected for any future periods. The consolidated financial statements include the historic accounts of JBGL and are consolidated with Green Brick beginning October 27, 2014. All intercompany balances and transactions have been eliminated in consolidation. Investments in which the Company directly or indirectly has an interest of more than 50 percent and/or is able to exercise control over the operations have been fully consolidated and noncontrolling interests are stated separately in the consolidated financial statements as required under the provisions of FASB ASC 810, Consolidations . Use of Estimates The preparation of the consolidated financial statements in conformity with GAAP requires the Company to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes, including the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenue and expenses during the reporting periods. Actual results could differ from those estimates. Noncontrolling Interests We own 50% controlling interests in several builders. The financial statements of these builders are consolidated in our consolidated financial statements. The noncontrolling interests attributable to the 50% minority interests not owned by us are included as part of noncontrolling interests on the consolidated balance sheets. Segment Information The Company’s operations are organized into two reportable segments: builder operations and land development. Builder operations consist of two operating segments: Texas and Georgia. In accordance with ASC 280, Segment Reporting , in determining the most appropriate reportable segments, we considered similar economic and other characteristics, geography including product types, production processes, average selling prices, gross profits, suppliers, land acquisition results, and underlying demand and supply. Recent Accounting Pronouncements In May 2014, FASB issued Accounting Standards Update (“ASU”) No. 2014-09, Revenue from Contracts with Customers , which requires an entity to recognize the amount of revenue to which it expects to be entitled for the transfer of promised goods or services to customers. The standard will replace most existing revenue recognition guidance in GAAP when it becomes effective. In August 2015, the FASB issued ASU No. 2015-14, Revenue from Contracts with Customers (Topic 606): Deferral of the Effective Date , which delayed the effective date of ASU No. 2014-09 by one year. ASU No. 2014-09 is effective for the Company beginning on January 1, 2018 . Early adoption is permitted for reporting periods beginning after December 15, 2016. The standard permits the use of either either the full retrospective approach or the modified retrospective approach. The Company has not yet selected a transition method and is currently evaluating the effect that the standard will have on its consolidated financial statements and related disclosures. In February 2015, the FASB issued ASU No. 2015-02, Consolidation (Topic 810): Amendments to the Consolidation Analysis , which amends the consolidation requirements in ASC 810, primarily related to limited partnerships and VIEs. The standard is effective for the Company beginning on January 1, 2016 . Early adoption is permitted. The Company does not believe that the adoption of this standard will have a material effect on its consolidated financial statements and related disclosures. In April 2015, the FASB issued ASU No. 2015-03, Interest - Imputation of Interest (Subtopic 835-30): Simplifying the Presentation of Debt Issuance Costs , which requires that debt issuance costs related to a recognized debt liability be presented in the balance sheet as a direct deduction from the carrying amount of that debt liability, consistent with debt discounts. The standard is effective for the Company beginning on January 1, 2016 . Early adoption is permitted for financial statements that have not been previously issued. This standard is to be applied on a retrospective basis and represents a change in accounting principle. The Company does not believe that the adoption of this standard will have a material effect on its consolidated financial statements and related disclosures. In August 2015, the FASB issued ASU No. 2015-15, Interest — Imputation of Interest (Subtopic 835-30): Presentation and Subsequent Measurement of Debt Issuance Costs Associated with Line-of-Credit Arrangements — Amendments to SEC Paragraphs Pursuant to Staff Announcement at June 18, 2015 EITF Meeting , which clarifies the treatment of debt issuance costs from line-of-credit arrangements after the adoption of ASU No. 2015-03. The standard clarifies that the SEC staff would not object to an entity deferring and presenting debt issuance costs related to a line-of-credit arrangement as an asset and subsequently amortizing the deferred debt issuance costs ratably over the term of such arrangement, regardless of whether there are any outstanding borrowings on the line-of-credit arrangement. The Company does not believe that the adoption of this standard will have a material effect on its consolidated financial statements and related disclosures. In September 2015, the FASB issued ASU No. 2015-16, Business Combinations (Topic 805): Simplifying the Accounting for Measurement-Period Adjustments , as part of its simplification initiative. Under the standard, adjustments to provisional amounts identified during the measurement period should be recognized in the reporting period in which the adjustments are determined. The portion of the amount recorded in current-period earnings that would have been recorded in previous reporting periods if the adjustment to the provisional amounts were recognized at the acquisition date should be presented separately, by line item, on the face of the income statement or disclosed in the notes. The standard is effective for the Company beginning on January 1, 2016 . The Company does not believe that the adoption of this standard will have a material effect on its consolidated financial statements and related disclosures.

Net Income Attributable to Gree

Net Income Attributable to Green Brick Partners, Inc. Per Share	9 Months Ended
	Sep. 30, 2015
Earnings Per Share [Abstract]
Net Income Attributable to Green Brick Partners, Inc. Per Share	NET INCOME ATTRIBUTABLE TO GREEN BRICK PARTNERS, INC. PER SHARE Our restricted stock awards have the right to receive forfeitable dividends on an equal basis with common stock and therefore are not considered participating securities that must be included in the calculation of net income per share using the two-class method. Basic earnings per share is computed by dividing net income by the weighted average number of common shares outstanding during each period, adjusted for non-vested shares of restricted stock awards during each period. Diluted earnings per share is calculated using the treasury stock method and includes the effect of all dilutive securities, including stock options and restricted stock awards. The computation of basic and diluted net income attributable to Green Brick Partners, Inc. per share using the treasury stock method is as follows (in thousands, except per share amounts): Three Months Ended September 30, Nine Months Ended September 30, 2015 2014 2015 2014 Basic net income attributable to Green Brick Partners, Inc. per share Net income attributable to Green Brick Partners, Inc. —basic $ 2,826 $ 3,694 $ 10,632 $ 18,453 Weighted-average number of shares outstanding —basic 48,495 11,109 37,125 11,109 Basic net income attributable to Green Brick Partners, Inc. per share $ 0.06 $ 0.33 $ 0.29 $ 1.66 Diluted net income attributable to Green Brick Partners, Inc. per share Net income attributable to Green Brick Partners, Inc. —diluted $ 2,826 $ 3,694 $ 10,632 $ 18,453 Weighted-average number of shares used to compute basic net income attributable to Green Brick Partners, Inc. 48,495 11,109 37,125 11,109 Dilutive effect of stock options and restricted stock awards 100 — 36 — Weighted-average number of shares outstanding —diluted 48,595 11,109 37,161 11,109 Diluted net income attributable to Green Brick Partners, Inc. per share $ 0.06 $ 0.33 $ 0.29 $ 1.66 The following securities that could potentially dilute earnings per share in the future are not included in the determination of diluted net income attributable to Green Brick Partners, Inc. per common share (in thousands): Three Months Ended September 30, Nine Months Ended September 30, 2015 2014 2015 2014 Antidilutive options to purchase common stock — — 67 —

Reverse Recapitalization

Reverse Recapitalization	9 Months Ended
	Sep. 30, 2015
Equity [Abstract]
Reverse Recapitalization	REVERSE RECAPITALIZATION The authorized common stock of the Company consists of 100,000,000 shares with a $0.01 par value. On June 10, 2014, the Company entered into a definitive transaction agreement with the owners of JBGL, which provided that we would acquire JBGL for $275 million , payable in cash and shares of our common stock. The Transaction was completed on October 27, 2014. Pursuant to the terms of the Transaction, we paid the $275 million purchase price with approximately $191.8 million in cash and the remainder in 11,108,500 shares of our common stock valued at approximately $7.49 per share. After giving effect to the Transaction, there were 31,346,084 shares of our common stock outstanding. Prior to the Transaction, we were a non-operating public shell company with nominal operations and assets consisting of cash, deferred tax assets, and nominal other nonoperating assets. For accounting purposes, this transaction is being accounted for as a reverse recapitalization and has been treated as a recapitalization of JBGL, the accounting acquirer. JBGL's financial statements became the financial statements of the registrant The Company did not recognize goodwill or any intangible assets in connection with the transaction. The historical financial consolidated statements of the Company are those of JBGL. From the date of the Transaction and subsequent, the consolidated financial statements include the results of the consolidated entities of the Company. For financial reporting purposes, the 11,108,500 shares issued by BioFuel in conjunction with the Transaction have been presented as outstanding for all periods prior to the Transaction. All share and per share amounts have been retroactively restated to the earliest periods presented to reflect the transaction. The contributions from and distributions to equity holders during the historical periods presented were contributed from and distributed to equity holders whom were members of JBGL pre-Transaction. The following table summarizes the net identifiable liabilities of BioFuel retained on the Transaction Date (in thousands): Cash $ 31,916 Deferred tax assets 65,020 Deferred tax assets valuation allowance (1,161 ) Other assets 591 Debt (150,000 ) Other liabilities (312 ) Net liabilities acquired $ (53,946 ) BioFuel incurred acquisition costs of approximately $3.2 million included in additional paid-in-capital on our consolidated balance sheets for the year ended December 31, 2014 . Since the transaction was considered a reverse recapitalization, the presentation of pro-forma financial information was not required. STOCKHOLDERS’ EQUITY A summary of changes in stockholders’ equity is presented below (dollars in thousands): Common Stock Additional Paid-in Capital Retained Earnings Total Green Brick Partners, Inc. Stockholders’ Equity Noncontrolling Interests Total Stockholders’ Equity Shares Amount Balance at December 31, 2013 11,108,500 $ 111 $ 155,985 $ 33,014 $ 189,110 $ 9,709 $ 198,819 Contributions — — — — — 592 592 Distributions — — — (5,782 ) (5,782 ) (11,439 ) (17,221 ) Net income — — — 18,453 18,453 8,290 26,743 Balance at September 30, 2014 11,108,500 $ 111 $ 155,985 $ 45,685 $ 201,781 $ 7,152 $ 208,933 Balance at December 31, 2014 31,346,084 $ 313 $ 101,626 $ 69,919 $ 171,858 $ 9,739 $ 181,597 Share-based compensation — — 227 — 227 — 227 Issuance of common stock under 2014 Equity Plan 22,908 — 91 — 91 — 91 Issuance of common stock in connection with secondary offering, net of issuance costs 17,444,897 175 169,808 — 169,983 — 169,983 Contributions — — — — — 87 87 Distributions — — — — — (6,423 ) (6,423 ) Net income — — — 10,632 10,632 7,846 18,478 Balance at September 30, 2015 48,813,889 $ 488 $ 271,752 $ 80,551 $ 352,791 $ 11,249 $ 364,040 Equity Offering On July 1, 2015, the Company completed an underwritten public offering of 17,000,000 shares of its common stock at a price to the public of $10.00 per share and granted to the underwriters a 30-day option to purchase up to an aggregate of 841,500 additional shares of common stock to cover over-allotments (the “Equity Offering”). On July 23, 2015 , the underwriters exercised the option and purchased 444,897 additional shares. All of the shares were sold by the Company pursuant to an effective shelf registration statement previously filed with the SEC. The Equity Offering resulted in net proceeds to Green Brick of approximately $170.0 million , after deducting underwriting discounts and offering expenses. On July 1, 2015, Green Brick used approximately $154.9 million of the net proceeds from the Equity Offering to repay all of the outstanding principal, interest and a prepayment premium under the Term Loan Facility. Effective upon receipt of such payment, all security interests in, and all liens held by Greenlight with respect to, the assets of Green Brick securing the amounts owed under the Term Loan Facility were terminated and released. Green Brick used the remaining net proceeds for working capital and general corporate purposes.

Inventory

Inventory	9 Months Ended
	Sep. 30, 2015
Inventory Disclosure [Abstract]
Inventory	INVENTORY Inventory consists primarily of land in the process of development, undeveloped land, developed lots, completed homes, and raw land scheduled for development, primarily in Texas and Georgia. Inventory is valued at cost unless the carrying value is determined to be not recoverable in which case the affected inventory is written down to fair value. Cost includes any related pre-acquisition costs that are directly identifiable with a specific property so long as those pre-acquisition costs are recoverable at the sale of the property. A summary of inventory is as follows (in thousands): September 30, 2015 December 31, 2014 Completed home inventory and residential lots held for sale $ 80,181 $ 47,048 Work in process 213,849 203,756 Undeveloped land 6,193 16,220 Land not owned under option agreements 17,804 7,279 Total Inventory $ 318,027 $ 274,303 We capitalize interest costs incurred to inventory during active development and other qualifying activities. Interest capitalized as cost of inventory is charged to cost of sales as related homes, land and/or lots are closed. Interest incurred on undeveloped land is directly expensed and included in interest expense in our consolidated statements of income. Interest costs incurred, capitalized and expensed were as follows (in thousands): Three Months Ended September 30, Nine Months Ended September 30, 2015 2014 2015 2014 Interest capitalized at beginning of period $ 9,854 $ 1,082 $ 3,713 $ 1,065 Interest incurred 1,890 308 9,238 1,138 Interest charged to cost of sales (1,389 ) — (2,315 ) (105 ) Interest charged to interest expense — (308 ) (281 ) (1,016 ) Interest capitalized at end of period $ 10,355 $ 1,082 $ 10,355 $ 1,082

Debt

Debt	9 Months Ended
	Sep. 30, 2015
Debt Disclosure [Abstract]
Debt	DEBT Term Loan Facility Term loan facility outstanding consists of the following (in thousands): September 30, 2015 December 31, 2014 Term Loan Facility $ — $ 150,000 On October 27, 2014, in connection with the Transaction, the Company entered into the Loan Agreement, a guaranty and a pledge and security agreement with certain funds and accounts managed by Greenlight, our largest shareholder. Greenlight beneficially owns approximately 49.9% of the voting power of the Company. The Loan Agreement provided for a five year term loan facility in an aggregate principal amount of $150.0 million which funded part of the Transaction (the “Term Loan Facility”). Certain subsidiaries of the Company guaranteed obligations under the Term Loan Facility pursuant to the guaranty. The Term Loan Facility bore interest at 9.0% per annum, payable quarterly, from October 27, 2014 through the first anniversary thereof and 10.0% per annum thereafter. The Company had a one-time right to elect to pay up to four consecutive quarters’ interest in kind. The Term Loan Facility was subject to mandatory prepayment with 100% of the net cash proceeds received from the incurrence of certain debt by the Company or the issuance of certain equity securities. Voluntary prepayments of the Term Loan Facility were permitted at any time. All prepayments made prior to October 27, 2016 were subject to a 1.0% prepayment premium. The Term Loan Facility was secured by a first priority lien on substantially all of our assets and substantially all of the assets, subject to certain exceptions, of each of the Company’s subsidiaries. The costs associated with the issuance of the Term Loan Facility of $0.4 million were deferred and are included in other assets in our consolidated balance sheet at December 31, 2014 . We amortized these debt issuance costs to interest expense over the term of the Term Loan Facility using the effective interest method. On July 1, 2015 we used approximately $154.9 million of the net proceeds from the Equity Offering, as defined in Note 6 , to repay all of the outstanding principal, interest and a prepayment premium under the Term Loan Facility. Upon repayment, the Term Loan Facility was terminated. In connection with the termination of the Term Loan Facility, we wrote-off the remaining unamortized debt issuance costs of $0.4 million , which is included in depreciation and amortization expense in our consolidated statement of income for the three and nine months ended September 30, 2015 . See Note 6 to our consolidated financial statements included elsewhere in this Quarterly Report on Form 10-Q for further discussion on the Equity Offering. Lines of Credit Lines of credit outstanding at September 30, 2015 and December 31, 2014 consist of the following (in thousands): September 30, 2015 December 31, 2014 Promissory note to Inwood National Bank (“Inwood”): Direct finance leases A (1) $ — $ 662 Direct finance leases B (2) — 899 John’s Creek (3) — 12,500 Revolving credit facility (4) 13,960 — Total lines of credit $ 13,960 $ 14,061 (1) During 2012, a subsidiary of JBGL opened a line of credit (“LOC”) issued by Inwood in the amount of $4.8 million maturing on April 13, 2014, bearing a minimum interest rate of 4.0% , which was in effect during the three months ended March 31, 2015, and collateralized by the leased assets. The LOC was renewed during 2014 until April 13, 2015. This LOC was paid off as of March 31, 2015. (2) During 2012, a subsidiary of JBGL opened a LOC issued by Inwood in the amount of $3.0 million maturing on September 15, 2014, bearing a minimum interest rate of 4.0% , which was in effect during the three months ended March 31, 2015, and collateralized by the leased assets. The LOC was renewed until April 13, 2015. This LOC was paid off as of March 31, 2015. (3) During 2012, a subsidiary of JBGL opened a LOC with Inwood in the amount of $8.0 million . On October 13, 2013, the JBGL subsidiary extended this revolving credit facility and increased the size from $8.0 million to $25.0 million maturing on October 13, 2014. Interest accrued and was payable monthly at a rate of 4.0% . The credit facility was renewed until October 13, 2015 and was secured by land owned in John’s Creek, Georgia. This LOC was replaced with a new revolving credit facility in July 2015. (4) On July 30, 2015 , the Company replaced its John's Creek credit facility with a new revolving credit facility with Inwood, which provides for up to $50.0 million and is secured by land owned in John’s Creek, Georgia, Allen, TX, and Carrollton, TX. The maturity date for the new revolving credit facility is July 30, 2017 . The costs associated with the new revolving credit facility of $0.4 million were deferred and are included in other assets in our consolidated balance sheets. The Company is amortizing these debt issuance costs to interest expense over the term of the new revolving credit facility using the effective interest method. Amounts outstanding under the new revolving credit facility is secured by mortgages on real property and security interests in certain personal property (to the extent that such personal property is connected with the use and enjoyment of the real property) that is owned by certain of the Company's subsidiaries, including land owned in John’s Creek, Georgia, Allen, Texas, and Carrollton, Texas. The amounts outstanding under the new revolving credit facility are also guaranteed by certain of the Company's subsidiaries. The new revolving credit facility is subject to a borrowing base limitation equal to the sum of 50% of the total value of land and 60% of the total value of lots owned by certain of the Company's subsidiaries, each as determined by an independent appraiser, with the value of land being restricted from being more than 50% of the borrowing base. Outstanding borrowings under the new revolving credit facility bear interest at a floating rate per annum equal to the rate announced by Bank of America, N.A., from time to time, as its “Prime Rate” (the “Index”) with such adjustments to the interest rate being made on the effective date of any change in the Index. Notwithstanding the foregoing, the interest may not, at any time, be less than 4% per annum or more than the lesser amount of 18% and the highest maximum rate allowed by applicable law. Beginning on August 30, 2015 and continuing on the 30th day of each consecutive month thereafter until the revolving credit facility matures on July 30, 2017, the Company must pay interest on the unpaid principal amount. The entire unpaid principal balance and any accrued but unpaid interest is due and payable on the maturity date. In addition to the financial covenants described in footnote (4) to the table above, the new revolving credit facility with Inwood requires the Company to maintain minimum multiples of net worth in excess of the outstanding new revolving credit facility balance, minimum interest coverage and maximum leverage. The Company was in compliance with these covenants as of September 30, 2015 . Notes Payable Notes payable outstanding at September 30, 2015 and December 31, 2014 consist of the following (in thousands): September 30, 2015 December 31, 2014 Note payable to unrelated third party: Briar Ridge Investments, LTD (1) $ 9,000 $ 9,000 Lakeside DFW Land, LTD (2) — 1,824 Lyons Equities, Inc. Trustee (3) 988 — Centennial Park Richardson, LTD. (4) 304 — Subordinated Lot Notes (5) 1,166 1,327 Total notes payable $ 11,458 $ 12,151 (1) On December 13, 2013, a subsidiary of JBGL signed a promissory note for $9 million maturing at December 13, 2017, bearing interest at 6.0% per annum and collateralized by land purchased in Allen, Texas. Accrued interest at September 30, 2015 was $0 . (2) On April 15, 2013, a subsidiary of JBGL signed a promissory note for $3.5 million maturing on January 22, 2014, bearing interest at 6.0% per annum and collateralized by land located in Denton, Texas. This note was paid in full during 2014. On April 16, 2014, a new promissory note was signed for $3.3 million maturing on April 30, 2015 bearing interest at 5.0% collateralized by land located in Denton, Texas. $1.5 million of this note was repaid in July 2014. This note was paid in full during the three months ended March 31, 2015. (3) On May 22, 2015, a subsidiary of JBGL signed a promissory note for $1.0 million maturing on May 22, 2016, bearing interest at 3.5% per annum collateralized by land located in Allen, TX. (4) On July 20, 2015, a subsidiary of JBGL signed a promissory note for $0.3 million maturing on April 20, 2016, bearing interest at 0.0% per annum collateralized by land located in Richardson, TX. This note was paid in full in October 2015. (5) Subsidiaries of the Company purchased lots under various agreements from unrelated third parties. The sellers of these lots have subordinated a percentage of the lot purchase price to various construction loans of subsidiaries of the Company’s construction loans. Notes were signed in relation to the subordination bearing interest at between 8.0% and 14.0% , collateralized by liens on the homes built on each lot. The sellers will release their lien upon payment of principle plus accrued interest at the closing of each individual home to a third party buyer.

Stockholders' Equity

Stockholders' Equity	9 Months Ended
	Sep. 30, 2015
Stockholders' Equity Attributable to Parent [Abstract]
Stockholders' Equity	REVERSE RECAPITALIZATION The authorized common stock of the Company consists of 100,000,000 shares with a $0.01 par value. On June 10, 2014, the Company entered into a definitive transaction agreement with the owners of JBGL, which provided that we would acquire JBGL for $275 million , payable in cash and shares of our common stock. The Transaction was completed on October 27, 2014. Pursuant to the terms of the Transaction, we paid the $275 million purchase price with approximately $191.8 million in cash and the remainder in 11,108,500 shares of our common stock valued at approximately $7.49 per share. After giving effect to the Transaction, there were 31,346,084 shares of our common stock outstanding. Prior to the Transaction, we were a non-operating public shell company with nominal operations and assets consisting of cash, deferred tax assets, and nominal other nonoperating assets. For accounting purposes, this transaction is being accounted for as a reverse recapitalization and has been treated as a recapitalization of JBGL, the accounting acquirer. JBGL's financial statements became the financial statements of the registrant The Company did not recognize goodwill or any intangible assets in connection with the transaction. The historical financial consolidated statements of the Company are those of JBGL. From the date of the Transaction and subsequent, the consolidated financial statements include the results of the consolidated entities of the Company. For financial reporting purposes, the 11,108,500 shares issued by BioFuel in conjunction with the Transaction have been presented as outstanding for all periods prior to the Transaction. All share and per share amounts have been retroactively restated to the earliest periods presented to reflect the transaction. The contributions from and distributions to equity holders during the historical periods presented were contributed from and distributed to equity holders whom were members of JBGL pre-Transaction. The following table summarizes the net identifiable liabilities of BioFuel retained on the Transaction Date (in thousands): Cash $ 31,916 Deferred tax assets 65,020 Deferred tax assets valuation allowance (1,161 ) Other assets 591 Debt (150,000 ) Other liabilities (312 ) Net liabilities acquired $ (53,946 ) BioFuel incurred acquisition costs of approximately $3.2 million included in additional paid-in-capital on our consolidated balance sheets for the year ended December 31, 2014 . Since the transaction was considered a reverse recapitalization, the presentation of pro-forma financial information was not required. STOCKHOLDERS’ EQUITY A summary of changes in stockholders’ equity is presented below (dollars in thousands): Common Stock Additional Paid-in Capital Retained Earnings Total Green Brick Partners, Inc. Stockholders’ Equity Noncontrolling Interests Total Stockholders’ Equity Shares Amount Balance at December 31, 2013 11,108,500 $ 111 $ 155,985 $ 33,014 $ 189,110 $ 9,709 $ 198,819 Contributions — — — — — 592 592 Distributions — — — (5,782 ) (5,782 ) (11,439 ) (17,221 ) Net income — — — 18,453 18,453 8,290 26,743 Balance at September 30, 2014 11,108,500 $ 111 $ 155,985 $ 45,685 $ 201,781 $ 7,152 $ 208,933 Balance at December 31, 2014 31,346,084 $ 313 $ 101,626 $ 69,919 $ 171,858 $ 9,739 $ 181,597 Share-based compensation — — 227 — 227 — 227 Issuance of common stock under 2014 Equity Plan 22,908 — 91 — 91 — 91 Issuance of common stock in connection with secondary offering, net of issuance costs 17,444,897 175 169,808 — 169,983 — 169,983 Contributions — — — — — 87 87 Distributions — — — — — (6,423 ) (6,423 ) Net income — — — 10,632 10,632 7,846 18,478 Balance at September 30, 2015 48,813,889 $ 488 $ 271,752 $ 80,551 $ 352,791 $ 11,249 $ 364,040 Equity Offering On July 1, 2015, the Company completed an underwritten public offering of 17,000,000 shares of its common stock at a price to the public of $10.00 per share and granted to the underwriters a 30-day option to purchase up to an aggregate of 841,500 additional shares of common stock to cover over-allotments (the “Equity Offering”). On July 23, 2015 , the underwriters exercised the option and purchased 444,897 additional shares. All of the shares were sold by the Company pursuant to an effective shelf registration statement previously filed with the SEC. The Equity Offering resulted in net proceeds to Green Brick of approximately $170.0 million , after deducting underwriting discounts and offering expenses. On July 1, 2015, Green Brick used approximately $154.9 million of the net proceeds from the Equity Offering to repay all of the outstanding principal, interest and a prepayment premium under the Term Loan Facility. Effective upon receipt of such payment, all security interests in, and all liens held by Greenlight with respect to, the assets of Green Brick securing the amounts owed under the Term Loan Facility were terminated and released. Green Brick used the remaining net proceeds for working capital and general corporate purposes.

Share-Based Compensation

Share-Based Compensation	9 Months Ended
	Sep. 30, 2015
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Share-Based Compensation	SHARE-BASED COMPENSATION We measure and account for share-based awards in accordance with ASC Topic 718, “ Compensation - Stock Compensation ”. Share-based compensation expense associated with stock options with vesting contingent upon the achievement of service conditions is recognized on a straight-line basis, net of estimated forfeitures of unvested stock options, over the requisite service period the awards are expected to vest. We estimate the aggregate intrinsic value of stock options with vesting contingent upon the achievement of service conditions as of the date the award was granted using the Black-Scholes option pricing model. The Black-Scholes option-pricing model requires the use of certain input variables, such as expected volatility, risk-free interest rate and expected award life. In April 2015, the Company granted 22,908 restricted stock awards (“RSAs”) to certain non-employee Board of Directors, pursuant to the 2014 Equity Plan. The RSAs will become fully vested in April 2016 . The RSAs have a weighted average grant-date fair value of $8.73 share. The fair value of the outstanding shares of restricted stock awards will be recorded as share-based compensation expense over the vesting period. Share-Based Award Activity A summary of restricted stock awards activity during the nine months ended September 30, 2015 is as follows: Number of Shares (in thousands) Weighted Average Grant Date Fair Value per Share Nonvested, December 31, 2014 — $ — Granted 23 $ 8.73 Vested — $ — Forfeited — $ — Nonvested, September 30, 2015 23 $ 8.73 A summary of stock option activity during the nine months ended September 30, 2015 is as follows: Number of Shares (in thousands) Weighted Average Exercise Price per Share Weighted Average Remaining Contractual Term (in years) Aggregate Intrinsic Value (in thousands) Options outstanding, December 31, 2014 500 $ 7.49 Granted — — Exercised — — Forfeited — — Options outstanding, September 30, 2015 500 $ 7.49 9.63 $ 397 Options exercisable, September 30, 2015 — $ — — $ — A summary of our unvested stock options during the nine months ended September 30, 2015 is as follows: Number of Shares (in thousands) Weighted Average Per Share Grant Date Fair Value Unvested, December 31, 2014 500 $ 2.88 Granted — $ — Vested — $ — Forfeited — $ — Unvested, September 30, 2015 500 $ 2.88 Valuation of Share-Based Awards The weighted average per share grant date fair value of restricted stock awards granted during the nine months ended September 30, 2015 was $8.73 , determined based on the market price of our common stock on the date of grant, which approximates the intrinsic value. We utilize the Black-Scholes option pricing model for estimating the grant date fair value of stock options. There were no stock options issued during the nine months ended September 30, 2015 and September 30, 2014 . Share-Based Compensation Expense Share-based compensation expense was $0.1 million and $0.3 million for the three and nine months ended September 30, 2015 , respectively. There were no share-based awards issued prior to October 27, 2014. At September 30, 2015 , the estimated total remaining unamortized share-based compensation expense related to unvested restricted stock awards and stock options, net of forfeitures, was $1.3 million which is expected to be recognized over a weighted-average period of 3.7 years.

Income Taxes

Income Taxes	9 Months Ended
	Sep. 30, 2015
Income Tax Disclosure [Abstract]
Income Taxes	INCOME TAXES We recorded an income tax provision of $1.9 million and $6.2 million for the three and nine months ended September 30, 2015 , respectively, as compared to $0.0 million and $0.3 million for the three and nine months ended September 30, 2014 , respectively. The effective tax rate for the three and nine months ended September 30, 2015 was 26.0% and 25.2% , respectively, as compared to 0.0% and 1.2% for the three and nine months ended September 30, 2014 , respectively. The effective tax rate for the three and nine months ended September 30, 2015 is driven by the statutory tax rate benefit related to non-controlled earnings and state income taxes. The effective tax rate for the nine months ended September 30, 2014 is driven by state income taxes. In accordance with ASC Topic 740, “Income Taxes” (“ASC 740”), the Company assesses the recoverability of deferred tax assets and the need for a valuation allowance on an ongoing basis. In making this assessment, management considers all available positive and negative evidence and available income tax planning to determine whether it is more-likely-than-not that some portion or all of the deferred tax assets will be realized in future periods. This assessment requires significant judgment and estimates involving current and deferred income taxes, tax attributes relating to the interpretation of various tax laws, historical bases of tax attributes associated with certain assets and limitations surrounding the realization of deferred tax assets. As of September 30, 2015 , we had deferred tax assets of $83.4 million , which was net of a valuation allowance in the amount of $1.2 million relating to state loss carryforwards. Our deferred tax asset valuation allowance remained unchanged during the nine months ended September 30, 2015 from December 31, 2014 . As of December 31, 2014 , we had $178.8 million of federal net operating loss carryforwards that will expire beginning with the year ending December 31, 2029 . We also have approximately $21.6 million of state net operating loss carryforwards that have varying dates of expiration. We believe it is more-likely-than-not that the state loss carryforwards will expire prior to their utilization. As a result, a valuation allowance in the amount of $21.6 million is recorded against the state loss carryforwards in full. At September 30, 2015 and December 31, 2014 , the Company had no unrecognized tax benefit. Our policy is to accrue interest and penalties on unrecognized tax benefits and include them in federal income tax expense.

Related Party Transactions

Related Party Transactions	9 Months Ended
	Sep. 30, 2015
Related Party Transactions [Abstract]
Related Party Transactions	RELATED PARTY TRANSACTIONS During the three and nine months ended September 30, 2015 and 2014 , the Company had related party transactions through the normal course of business. These transactions include the following: Through November 2014, the Company leased its Dallas, Texas headquarters on a month-to-month basis from family members of the Company's Chief Executive Officer. The Company terminated this lease during the fourth quarter of 2014. During the three and nine months ended September 30, 2014 , the Company paid rent of $1,016 and $13,913 , respectively, under this agreement which is included in selling, general and administrative expense in the consolidated statements of income. Through the Transaction Date, the Company paid a quarterly management fee to an executive calculated at .375% of cumulative capital contributions of certain members of Builder Finance at the end of each quarter. During the three and nine months ended September 30, 2014 , the Company incurred $0.4 million and $1.2 million , respectively, of expenses from this arrangement which are included as management fees in the consolidated statements of income. On October 27, 2014, in connection with the Transaction, the Company entered into the Loan Agreement, a guaranty and a pledge and security agreement with certain funds and accounts managed by Greenlight, our largest shareholder. Greenlight beneficially owns approximately 49.9% of the voting power of the Company. The Loan Agreement provided for a five year term loan facility in an aggregate principal amount of $150.0 million which funded part of the Transaction. Certain subsidiaries of the Company guaranteed obligations under the Term Loan Facility pursuant to the guaranty. The Term Loan Facility bore interest at 9.0% per annum, payable quarterly, from October 27, 2014 through the first anniversary thereof and 10.0% per annum thereafter. On July 1, 2015 we used approximately $154.9 million of the net proceeds from an equity offering to repay all of the outstanding principal, interest and a prepayment premium under the Term Loan Facility. See Note 5 for further discussion of this repayment. In 2012, we formed Centre Living Homes, LLC (“Centre Living”), a builder that focuses on a limited number of homes and luxury townhomes each year in the Dallas, Texas market. Trevor Brickman, the son of Green Brick's Chief Executive Officer, is the President of Centre Living. Effective as of January 1, 2015, Centre Living's operating agreement was amended and restated to the same general terms as with our other builders, such that Green Brick's ownership interest in Centre Living is 50% and Trevor Brickman's ownership interest is 50% for future operations beginning January 1, 2015. Subsequent to this amendment, Green Brick has 51% voting control over the operations of Centre Living. As such, 100% of Centre Living's operations are included within our consolidated financial statements for the three and nine months ended September 30, 2015 . The noncontrolling interest attributable to Centre Living was $0.3 million as of September 30, 2015 .

Fair Value Measurements

Fair Value Measurements	9 Months Ended
	Sep. 30, 2015
Fair Value Disclosures [Abstract]
Fair Value Measurements	FAIR VALUE MEASUREMENTS Fair Value of Financial Instruments The Company’s financial instruments, none of which are held for trading purposes, include cash and cash equivalents, restricted cash, accounts receivable, notes receivable, investment in direct financing lease, earnest money deposits, other assets, accounts payable, accrued liabilities, customer and builder deposits, obligations related to land not owned under option agreements, borrowings on lines of credit, and notes payable. The Company estimates that due to the short term nature of underlying instruments or the proximity of the underlying transaction to the applicable reporting date that the fair value of all financial instruments does not differ materially from the aggregate carrying values recorded in the consolidated financial statements at September 30, 2015 and December 31, 2014 . Per the fair value hierarchy, level 1 financial instruments include: cash and cash equivalents, restricted cash, earnest money deposits, and customer and builder deposits. All other instruments are deemed to be level 3. Fair Value of Nonfinancial Instruments Nonfinancial assets and liabilities include items such as inventory and long lived assets that are measured at cost unless the carrying value is determined to be not recoverable in which case the affected instrument is written down to fair value. During the nine months ended September 30, 2015 and the year ended December 31, 2014 , the Company did not record any fair value adjustments to those financial and nonfinancial assets and liabilities measured at fair value on a nonrecurring basis.

Commitments and Contingencies

Commitments and Contingencies	9 Months Ended
	Sep. 30, 2015
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	COMMITMENTS AND CONTINGENCIES Warranties The Company accrues an estimate of its exposure to warranty claims based on both current and historical home sales data and warranty costs incurred. The Company offers homeowners a comprehensive third party warranty on each home. Homes are generally covered by a ten year warranty for qualified and defined structural defects, one year for defects and products used, and two years for electrical, mechanical and plumbing systems. The Company accrues between $250 and $800 per home closed for future warranty claims, and evaluates the adequacy of the reserve annually. Warranty accruals are included within accrued expenses in the consolidated balance sheets. Commitments The Company has leases associated with office space in Georgia and Texas which are classified as operating leases. Rent expense under these leases are included in the selling, general and administrative expense in the consolidated statements of income. Legal Matters Lawsuits, claims and proceedings may be instituted or asserted against us in the normal course of business. The Company is also subject to local, state and federal laws and regulations related to land development activities, house construction standards, sales practices, employment practices and environmental protection. As a result, the Company may be subject to periodic examinations or inquiry by agencies administering these laws and regulations. The Company records a reserve for potential legal claims and regulatory matters when they are probable of occurring and a potential loss is reasonably estimable. The Company accrues for these matters based on facts and circumstances specific to each matter and revises these estimates when necessary. In view of the inherent difficulty of predicting outcomes of legal claims and related contingencies, the Company generally cannot predict their ultimate resolution, related timing or eventual loss. If evaluations indicate loss contingencies that could be material are not probable, but are reasonably possible, the Company will disclose their nature with an estimate of possible range of losses or a statement that such loss is not reasonably estimable. The Company has no litigation outstanding as of September 30, 2015 . At September 30, 2015 and December 31, 2014 , the Company did not have any accruals for asserted or unasserted matters.

Segment Information

Segment Information	9 Months Ended
	Sep. 30, 2015
Segment Reporting [Abstract]
Segment Information	SEGMENT INFORMATION Financial information relating to the Company’s reportable segments is as follows. Operational results of each reportable segment are not necessarily indicative of the results that would have been achieved had the reportable segment been an independent, stand-alone entity during the periods presented. Three Months Ended September 30, Nine Months Ended September 30, (in thousands) 2015 2014 2015 2014 Revenues: Builder Operations Texas $ 26,438 $ 19,042 $ 89,585 $ 54,035 Georgia 42,727 20,859 89,610 90,551 Land Development 6,033 9,775 26,442 33,942 $ 75,198 $ 49,676 $ 205,637 $ 178,528 Gross profit: Builder Operations Texas $ 7,054 $ 6,655 $ 22,744 $ 14,497 Georgia 6,938 6,014 19,356 24,245 Land Development 1,816 2,355 7,347 8,613 $ 15,808 $ 15,024 $ 49,447 $ 47,355 September 30, 2015 December 31, 2014 Inventory: Builder Operations Texas $ 57,679 $ 44,771 Georgia 159,216 129,361 Land Development 101,132 100,171 $ 318,027 $ 274,303

Basis of Presentation and Sig18

Basis of Presentation and Significant Accounting Policies (Policies)	9 Months Ended
	Sep. 30, 2015
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation and Principles of Consolidation	Basis of Presentation and Principles of Consolidation The unaudited consolidated financial statements have been prepared in accordance with United States generally accepted accounting principles (“GAAP”) as set forth in the Financial Accounting Standards Board’s (“FASB”) Accounting Standards Codification (“ASC”) and applicable regulations of the Securities and Exchange Commission (“SEC”), but do not include all of the information and footnotes required for complete financial statements. In the opinion of management, the accompanying consolidated financial statements for the periods presented reflect all adjustments, of a normal, recurring nature, necessary to fairly state our financial position, results of operations and cash flows. These consolidated financial statements should be read in conjunction with our audited consolidated financial statements for the year ended December 31, 2014, included in our Annual Report on Form 10-K filed with the SEC on March 31, 2015. Our operating results for the three months ended September 30, 2015 are not necessarily indicative of the results that may be expected for any future periods. The consolidated financial statements include the historic accounts of JBGL and are consolidated with Green Brick beginning October 27, 2014. All intercompany balances and transactions have been eliminated in consolidation. Investments in which the Company directly or indirectly has an interest of more than 50 percent and/or is able to exercise control over the operations have been fully consolidated and noncontrolling interests are stated separately in the consolidated financial statements as required under the provisions of FASB ASC 810, Consolidations .
Use of Estimates	Use of Estimates The preparation of the consolidated financial statements in conformity with GAAP requires the Company to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes, including the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenue and expenses during the reporting periods. Actual results could differ from those estimates.
Noncontrolling Interests	Noncontrolling Interests We own 50% controlling interests in several builders. The financial statements of these builders are consolidated in our consolidated financial statements. The noncontrolling interests attributable to the 50% minority interests not owned by us are included as part of noncontrolling interests on the consolidated balance sheets.
Segment Reporting	Segment Information The Company’s operations are organized into two reportable segments: builder operations and land development. Builder operations consist of two operating segments: Texas and Georgia. In accordance with ASC 280, Segment Reporting , in determining the most appropriate reportable segments, we considered similar economic and other characteristics, geography including product types, production processes, average selling prices, gross profits, suppliers, land acquisition results, and underlying demand and supply.
Recent Accounting Pronouncements	Recent Accounting Pronouncements In May 2014, FASB issued Accounting Standards Update (“ASU”) No. 2014-09, Revenue from Contracts with Customers , which requires an entity to recognize the amount of revenue to which it expects to be entitled for the transfer of promised goods or services to customers. The standard will replace most existing revenue recognition guidance in GAAP when it becomes effective. In August 2015, the FASB issued ASU No. 2015-14, Revenue from Contracts with Customers (Topic 606): Deferral of the Effective Date , which delayed the effective date of ASU No. 2014-09 by one year. ASU No. 2014-09 is effective for the Company beginning on January 1, 2018 . Early adoption is permitted for reporting periods beginning after December 15, 2016. The standard permits the use of either either the full retrospective approach or the modified retrospective approach. The Company has not yet selected a transition method and is currently evaluating the effect that the standard will have on its consolidated financial statements and related disclosures. In February 2015, the FASB issued ASU No. 2015-02, Consolidation (Topic 810): Amendments to the Consolidation Analysis , which amends the consolidation requirements in ASC 810, primarily related to limited partnerships and VIEs. The standard is effective for the Company beginning on January 1, 2016 . Early adoption is permitted. The Company does not believe that the adoption of this standard will have a material effect on its consolidated financial statements and related disclosures. In April 2015, the FASB issued ASU No. 2015-03, Interest - Imputation of Interest (Subtopic 835-30): Simplifying the Presentation of Debt Issuance Costs , which requires that debt issuance costs related to a recognized debt liability be presented in the balance sheet as a direct deduction from the carrying amount of that debt liability, consistent with debt discounts. The standard is effective for the Company beginning on January 1, 2016 . Early adoption is permitted for financial statements that have not been previously issued. This standard is to be applied on a retrospective basis and represents a change in accounting principle. The Company does not believe that the adoption of this standard will have a material effect on its consolidated financial statements and related disclosures. In August 2015, the FASB issued ASU No. 2015-15, Interest — Imputation of Interest (Subtopic 835-30): Presentation and Subsequent Measurement of Debt Issuance Costs Associated with Line-of-Credit Arrangements — Amendments to SEC Paragraphs Pursuant to Staff Announcement at June 18, 2015 EITF Meeting , which clarifies the treatment of debt issuance costs from line-of-credit arrangements after the adoption of ASU No. 2015-03. The standard clarifies that the SEC staff would not object to an entity deferring and presenting debt issuance costs related to a line-of-credit arrangement as an asset and subsequently amortizing the deferred debt issuance costs ratably over the term of such arrangement, regardless of whether there are any outstanding borrowings on the line-of-credit arrangement. The Company does not believe that the adoption of this standard will have a material effect on its consolidated financial statements and related disclosures. In September 2015, the FASB issued ASU No. 2015-16, Business Combinations (Topic 805): Simplifying the Accounting for Measurement-Period Adjustments , as part of its simplification initiative. Under the standard, adjustments to provisional amounts identified during the measurement period should be recognized in the reporting period in which the adjustments are determined. The portion of the amount recorded in current-period earnings that would have been recorded in previous reporting periods if the adjustment to the provisional amounts were recognized at the acquisition date should be presented separately, by line item, on the face of the income statement or disclosed in the notes. The standard is effective for the Company beginning on January 1, 2016 . The Company does not believe that the adoption of this standard will have a material effect on its consolidated financial statements and related disclosures.

Net Income Attributable to Gr19

Net Income Attributable to Green Brick Partners, Inc. Per Share (Tables)	9 Months Ended
	Sep. 30, 2015
Earnings Per Share [Abstract]
Schedule of Earnings Per Share, Basic and Diluted	The computation of basic and diluted net income attributable to Green Brick Partners, Inc. per share using the treasury stock method is as follows (in thousands, except per share amounts): Three Months Ended September 30, Nine Months Ended September 30, 2015 2014 2015 2014 Basic net income attributable to Green Brick Partners, Inc. per share Net income attributable to Green Brick Partners, Inc. —basic $ 2,826 $ 3,694 $ 10,632 $ 18,453 Weighted-average number of shares outstanding —basic 48,495 11,109 37,125 11,109 Basic net income attributable to Green Brick Partners, Inc. per share $ 0.06 $ 0.33 $ 0.29 $ 1.66 Diluted net income attributable to Green Brick Partners, Inc. per share Net income attributable to Green Brick Partners, Inc. —diluted $ 2,826 $ 3,694 $ 10,632 $ 18,453 Weighted-average number of shares used to compute basic net income attributable to Green Brick Partners, Inc. 48,495 11,109 37,125 11,109 Dilutive effect of stock options and restricted stock awards 100 — 36 — Weighted-average number of shares outstanding —diluted 48,595 11,109 37,161 11,109 Diluted net income attributable to Green Brick Partners, Inc. per share $ 0.06 $ 0.33 $ 0.29 $ 1.66
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share	The following securities that could potentially dilute earnings per share in the future are not included in the determination of diluted net income attributable to Green Brick Partners, Inc. per common share (in thousands): Three Months Ended September 30, Nine Months Ended September 30, 2015 2014 2015 2014 Antidilutive options to purchase common stock — — 67 —

Reverse Recapitalization (Table

Reverse Recapitalization (Tables)	9 Months Ended
	Sep. 30, 2015
Equity [Abstract]
Summary of Identifiable Liabilities of BioFuel Retained	The following table summarizes the net identifiable liabilities of BioFuel retained on the Transaction Date (in thousands): Cash $ 31,916 Deferred tax assets 65,020 Deferred tax assets valuation allowance (1,161 ) Other assets 591 Debt (150,000 ) Other liabilities (312 ) Net liabilities acquired $ (53,946 )

Inventory (Tables)

Inventory (Tables)	9 Months Ended
	Sep. 30, 2015
Inventory Disclosure [Abstract]
Schedule of Real Estate Inventory	A summary of inventory is as follows (in thousands): September 30, 2015 December 31, 2014 Completed home inventory and residential lots held for sale $ 80,181 $ 47,048 Work in process 213,849 203,756 Undeveloped land 6,193 16,220 Land not owned under option agreements 17,804 7,279 Total Inventory $ 318,027 $ 274,303
Summary of Real Estate Inventory Capitalized Interest Costs	Interest costs incurred, capitalized and expensed were as follows (in thousands): Three Months Ended September 30, Nine Months Ended September 30, 2015 2014 2015 2014 Interest capitalized at beginning of period $ 9,854 $ 1,082 $ 3,713 $ 1,065 Interest incurred 1,890 308 9,238 1,138 Interest charged to cost of sales (1,389 ) — (2,315 ) (105 ) Interest charged to interest expense — (308 ) (281 ) (1,016 ) Interest capitalized at end of period $ 10,355 $ 1,082 $ 10,355 $ 1,082

Debt (Tables)

Debt (Tables)	9 Months Ended
	Sep. 30, 2015
Debt Instrument [Line Items]
Schedule of Lines of Credit Outstanding	Lines of credit outstanding at September 30, 2015 and December 31, 2014 consist of the following (in thousands): September 30, 2015 December 31, 2014 Promissory note to Inwood National Bank (“Inwood”): Direct finance leases A (1) $ — $ 662 Direct finance leases B (2) — 899 John’s Creek (3) — 12,500 Revolving credit facility (4) 13,960 — Total lines of credit $ 13,960 $ 14,061 (1) During 2012, a subsidiary of JBGL opened a line of credit (“LOC”) issued by Inwood in the amount of $4.8 million maturing on April 13, 2014, bearing a minimum interest rate of 4.0% , which was in effect during the three months ended March 31, 2015, and collateralized by the leased assets. The LOC was renewed during 2014 until April 13, 2015. This LOC was paid off as of March 31, 2015. (2) During 2012, a subsidiary of JBGL opened a LOC issued by Inwood in the amount of $3.0 million maturing on September 15, 2014, bearing a minimum interest rate of 4.0% , which was in effect during the three months ended March 31, 2015, and collateralized by the leased assets. The LOC was renewed until April 13, 2015. This LOC was paid off as of March 31, 2015. (3) During 2012, a subsidiary of JBGL opened a LOC with Inwood in the amount of $8.0 million . On October 13, 2013, the JBGL subsidiary extended this revolving credit facility and increased the size from $8.0 million to $25.0 million maturing on October 13, 2014. Interest accrued and was payable monthly at a rate of 4.0% . The credit facility was renewed until October 13, 2015 and was secured by land owned in John’s Creek, Georgia. This LOC was replaced with a new revolving credit facility in July 2015. (4) On July 30, 2015 , the Company replaced its John's Creek credit facility with a new revolving credit facility with Inwood, which provides for up to $50.0 million and is secured by land owned in John’s Creek, Georgia, Allen, TX, and Carrollton, TX. The maturity date for the new revolving credit facility is July 30, 2017 . The costs associated with the new revolving credit facility of $0.4 million were deferred and are included in other assets in our consolidated balance sheets. The Company is amortizing these debt issuance costs to interest expense over the term of the new revolving credit facility using the effective interest method. Amounts outstanding under the new revolving credit facility is secured by mortgages on real property and security interests in certain personal property (to the extent that such personal property is connected with the use and enjoyment of the real property) that is owned by certain of the Company's subsidiaries, including land owned in John’s Creek, Georgia, Allen, Texas, and Carrollton, Texas. The amounts outstanding under the new revolving credit facility are also guaranteed by certain of the Company's subsidiaries. The new revolving credit facility is subject to a borrowing base limitation equal to the sum of 50% of the total value of land and 60% of the total value of lots owned by certain of the Company's subsidiaries, each as determined by an independent appraiser, with the value of land being restricted from being more than 50% of the borrowing base. Outstanding borrowings under the new revolving credit facility bear interest at a floating rate per annum equal to the rate announced by Bank of America, N.A., from time to time, as its “Prime Rate” (the “Index”) with such adjustments to the interest rate being made on the effective date of any change in the Index. Notwithstanding the foregoing, the interest may not, at any time, be less than 4% per annum or more than the lesser amount of 18% and the highest maximum rate allowed by applicable law. Beginning on August 30, 2015 and continuing on the 30th day of each consecutive month thereafter until the revolving credit facility matures on July 30, 2017, the Company must pay interest on the unpaid principal amount. The entire unpaid principal balance and any accrued but unpaid interest is due and payable on the maturity date.
Notes Payable
Debt Instrument [Line Items]
Schedule of Long-term Debt	Notes payable outstanding at September 30, 2015 and December 31, 2014 consist of the following (in thousands): September 30, 2015 December 31, 2014 Note payable to unrelated third party: Briar Ridge Investments, LTD (1) $ 9,000 $ 9,000 Lakeside DFW Land, LTD (2) — 1,824 Lyons Equities, Inc. Trustee (3) 988 — Centennial Park Richardson, LTD. (4) 304 — Subordinated Lot Notes (5) 1,166 1,327 Total notes payable $ 11,458 $ 12,151 (1) On December 13, 2013, a subsidiary of JBGL signed a promissory note for $9 million maturing at December 13, 2017, bearing interest at 6.0% per annum and collateralized by land purchased in Allen, Texas. Accrued interest at September 30, 2015 was $0 . (2) On April 15, 2013, a subsidiary of JBGL signed a promissory note for $3.5 million maturing on January 22, 2014, bearing interest at 6.0% per annum and collateralized by land located in Denton, Texas. This note was paid in full during 2014. On April 16, 2014, a new promissory note was signed for $3.3 million maturing on April 30, 2015 bearing interest at 5.0% collateralized by land located in Denton, Texas. $1.5 million of this note was repaid in July 2014. This note was paid in full during the three months ended March 31, 2015. (3) On May 22, 2015, a subsidiary of JBGL signed a promissory note for $1.0 million maturing on May 22, 2016, bearing interest at 3.5% per annum collateralized by land located in Allen, TX. (4) On July 20, 2015, a subsidiary of JBGL signed a promissory note for $0.3 million maturing on April 20, 2016, bearing interest at 0.0% per annum collateralized by land located in Richardson, TX. This note was paid in full in October 2015. (5) Subsidiaries of the Company purchased lots under various agreements from unrelated third parties. The sellers of these lots have subordinated a percentage of the lot purchase price to various construction loans of subsidiaries of the Company’s construction loans. Notes were signed in relation to the subordination bearing interest at between 8.0% and 14.0% , collateralized by liens on the homes built on each lot. The sellers will release their lien upon payment of principle plus accrued interest at the closing of each individual home to a third party buyer
Secured Debt
Debt Instrument [Line Items]
Schedule of Long-term Debt	Term loan facility outstanding consists of the following (in thousands): September 30, 2015 December 31, 2014 Term Loan Facility $ — $ 150,000

Stockholders' Equity (Tables)

Stockholders' Equity (Tables)	9 Months Ended
	Sep. 30, 2015
Stockholders' Equity Attributable to Parent [Abstract]
Schedule of Stockholders Equity	A summary of changes in stockholders’ equity is presented below (dollars in thousands): Common Stock Additional Paid-in Capital Retained Earnings Total Green Brick Partners, Inc. Stockholders’ Equity Noncontrolling Interests Total Stockholders’ Equity Shares Amount Balance at December 31, 2013 11,108,500 $ 111 $ 155,985 $ 33,014 $ 189,110 $ 9,709 $ 198,819 Contributions — — — — — 592 592 Distributions — — — (5,782 ) (5,782 ) (11,439 ) (17,221 ) Net income — — — 18,453 18,453 8,290 26,743 Balance at September 30, 2014 11,108,500 $ 111 $ 155,985 $ 45,685 $ 201,781 $ 7,152 $ 208,933 Balance at December 31, 2014 31,346,084 $ 313 $ 101,626 $ 69,919 $ 171,858 $ 9,739 $ 181,597 Share-based compensation — — 227 — 227 — 227 Issuance of common stock under 2014 Equity Plan 22,908 — 91 — 91 — 91 Issuance of common stock in connection with secondary offering, net of issuance costs 17,444,897 175 169,808 — 169,983 — 169,983 Contributions — — — — — 87 87 Distributions — — — — — (6,423 ) (6,423 ) Net income — — — 10,632 10,632 7,846 18,478 Balance at September 30, 2015 48,813,889 $ 488 $ 271,752 $ 80,551 $ 352,791 $ 11,249 $ 364,040

Share-Based Compensation (Table

Share-Based Compensation (Tables)	9 Months Ended
	Sep. 30, 2015
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity	A summary of restricted stock awards activity during the nine months ended September 30, 2015 is as follows: Number of Shares (in thousands) Weighted Average Grant Date Fair Value per Share Nonvested, December 31, 2014 — $ — Granted 23 $ 8.73 Vested — $ — Forfeited — $ — Nonvested, September 30, 2015 23 $ 8.73
Summary of Stock Option Activity	A summary of stock option activity during the nine months ended September 30, 2015 is as follows: Number of Shares (in thousands) Weighted Average Exercise Price per Share Weighted Average Remaining Contractual Term (in years) Aggregate Intrinsic Value (in thousands) Options outstanding, December 31, 2014 500 $ 7.49 Granted — — Exercised — — Forfeited — — Options outstanding, September 30, 2015 500 $ 7.49 9.63 $ 397 Options exercisable, September 30, 2015 — $ — — $ —
Summary of Unvested Stock Options Activity	A summary of our unvested stock options during the nine months ended September 30, 2015 is as follows: Number of Shares (in thousands) Weighted Average Per Share Grant Date Fair Value Unvested, December 31, 2014 500 $ 2.88 Granted — $ — Vested — $ — Forfeited — $ — Unvested, September 30, 2015 500 $ 2.88

Segment Information (Tables)

Segment Information (Tables)	9 Months Ended
	Sep. 30, 2015
Segment Reporting [Abstract]
Schedule of Segment Reporting Information	Three Months Ended September 30, Nine Months Ended September 30, (in thousands) 2015 2014 2015 2014 Revenues: Builder Operations Texas $ 26,438 $ 19,042 $ 89,585 $ 54,035 Georgia 42,727 20,859 89,610 90,551 Land Development 6,033 9,775 26,442 33,942 $ 75,198 $ 49,676 $ 205,637 $ 178,528 Gross profit: Builder Operations Texas $ 7,054 $ 6,655 $ 22,744 $ 14,497 Georgia 6,938 6,014 19,356 24,245 Land Development 1,816 2,355 7,347 8,613 $ 15,808 $ 15,024 $ 49,447 $ 47,355 September 30, 2015 December 31, 2014 Inventory: Builder Operations Texas $ 57,679 $ 44,771 Georgia 159,216 129,361 Land Development 101,132 100,171 $ 318,027 $ 274,303

Basis of Presentation and Sig26

Basis of Presentation and Significant Accounting Policies (Details) $ / shares in Units, $ in Millions	Oct. 27, 2014USD ($)$ / sharesshares	Sep. 30, 2015segment	Jun. 10, 2014USD ($)
Class of Stock [Line Items]
Number of Reportable Segments | segment		2
Number of Operating Segments | segment		2
Ownership percentage by parent included in consolidation (more than)		50.00%
Ownership percentage by parent		50.00%
Ownership percentage by noncontrolling owners		50.00%
Reverse Recapitalization
Class of Stock [Line Items]
Proceeds from rights offering	$ 70
Reverse Recapitalization | Common Stock | LLC and LP | JBGL
Class of Stock [Line Items]
Agreed upon purchase price, cash and equity	275		$ 275
Cash payment to acquired business	$ 191.8
Noncash portion of business acquisition | shares	11,108,500
Issue price of shares | $ / shares	$ 7.49
Reverse Recapitalization | Term Loan Facility | Secured Debt | Greenlight Capital, Inc
Class of Stock [Line Items]
Debt instrument, face amount	$ 150
Reverse Recapitalization | Rights | Common Stock
Class of Stock [Line Items]
Issue price of shares | $ / shares	$ 5
Proceeds from rights offering	$ 24.2
Shares of common stock authorized, conversion ratio	2.2445
Shares issued in rights offering | shares	4,843,384
Reverse Recapitalization | Private Placement | Common Stock | Third Point LLC and Affiliates
Class of Stock [Line Items]
Proceeds from rights offering	$ 21
Shares issued in rights offering | shares	4,198,998
Reverse Recapitalization | Private Placement | Greenlight Capital, Inc | Common Stock | Third Point LLC and Affiliates
Class of Stock [Line Items]
Proceeds from rights offering	$ 24.8
Shares issued in rights offering | shares	4,957,618

Net Income Attributable to Gr27

Net Income Attributable to Green Brick Partners, Inc. Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Earnings Per Share [Abstract]
Net income attributable to Green Brick Partners, Inc. —basic	$ 2,826	$ 3,694	$ 10,632	$ 18,453
Weighted-average number of shares outstanding —basic (shares)	48,495	11,109	37,125	11,109
Weighted Average Number Diluted Shares Outstanding Adjustment (shares)	100	0	36	0
Basic net income attributable to Green Brick Partners, Inc. per share (usd per share)	$ 0.06	$ 0.33	$ 0.29	$ 1.66
Net income attributable to Green Brick Partners, Inc. —diluted	$ 2,826	$ 3,694	$ 10,632	$ 18,453
Weighted-average number of shares outstanding —diluted (shares)	48,595	11,109	37,161	11,109
Diluted net income attributable to Green Brick Partners, Inc. per share (usd per share)	$ 0.06	$ 0.33	$ 0.29	$ 1.66
Antidilutive options to purchase common stock (shares)	0	0	67	0

Reverse Recapitalization - Narr

Reverse Recapitalization - Narrative (Details) - USD ($) $ / shares in Units, $ in Millions	Oct. 27, 2014	Sep. 30, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 10, 2014	Dec. 31, 2013
Class of Stock [Line Items]
Common stock, shares authorized (in shares)		100,000,000	100,000,000
Common stock, par value (in dollars per share)		$ 0.01	$ 0.01
Common stock, shares outstanding (in shares)		48,813,889	31,346,084
Common Stock
Class of Stock [Line Items]
Common stock, shares outstanding (in shares)		48,813,889	31,346,084	11,108,500		11,108,500
Reverse Recapitalization
Class of Stock [Line Items]
Common stock, shares authorized (in shares)		100,000,000
Common stock, par value (in dollars per share)		$ 0.01
Common stock, shares outstanding (in shares)	31,346,084
Transaction costs			$ 3.2
Reverse Recapitalization | JBGL | LLC and LP | Common Stock
Class of Stock [Line Items]
Agreed upon purchase price, cash and equity	$ 275				$ 275
Cash payment to acquired business	$ 191.8
Noncash portion of business acquisition	11,108,500
Issue price of shares	$ 7.49

Reverse Recapitalization - Summ

Reverse Recapitalization - Summary of Identifiable Liabilities of BioFuel Retained (Details) - Reverse Recapitalization $ in Thousands	Oct. 27, 2014USD ($)
Business Acquisition [Line Items]
Cash	$ 31,916
Deferred tax assets	65,020
Deferred tax assets valuation allowance	(1,161)
Other assets	591
Debt	(150,000)
Other liabilities	(312)
Net liabilities acquired	$ (53,946)

Inventory (Details)

Inventory (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Inventory Disclosure [Abstract]
Completed home inventory and residential lots held for sale	$ 80,181	$ 47,048
Work in process	213,849	203,756
Undeveloped land	6,193	16,220
Land not owned under option agreements	17,804	7,279
Inventory	$ 318,027	$ 274,303

Inventory Capitalization of Int

Inventory Capitalization of Interest (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Real Estate Inventory, Capitalized Interest Costs [Roll Forward]
Interest capitalized at beginning of period	$ 9,854	$ 1,082	$ 3,713	$ 1,065
Interest incurred	1,890	308	9,238	1,138
Interest charged to cost of sales	(1,389)	0	(2,315)	(105)
Interest charged to interest expense	0	(308)	(281)	(1,016)
Interest capitalized at end of period	$ 10,355	$ 1,082	$ 10,355	$ 1,082

Debt (Schedule of Long-term Deb

Debt (Schedule of Long-term Debt - Term Loan Facility) (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Debt Instrument [Line Items]
Term Loan Facility	$ 0	$ 150,000
Greenlight Capital, Inc | Reverse Recapitalization | Term Loan Facility | Secured Debt
Debt Instrument [Line Items]
Term Loan Facility	$ 0	$ 150,000

Debt (Narrative) (Details)

Debt (Narrative) (Details) - USD ($) $ in Thousands	Jul. 01, 2015	Oct. 27, 2014	Sep. 30, 2015	Sep. 30, 2014	Oct. 28, 2015	Jul. 20, 2015
Debt Instrument [Line Items]
Repayments of Secured Debt			$ 150,000	$ 0
Secured Debt
Debt Instrument [Line Items]
Maximum period electable to pay interest in kind		12 months
Reverse Recapitalization | Term Loan Facility | Secured Debt
Debt Instrument [Line Items]
Mandatory prepayment, percentage of net cash proceeds from incurrence of debt		100.00%
Voluntary prepayment premium		1.00%
Reverse Recapitalization | Term Loan Facility | Other Assets | Secured Debt
Debt Instrument [Line Items]
Debt issuance cost	$ 400	$ 400
Reverse Recapitalization | Term Loan Facility | Greenlight Capital, Inc | Secured Debt
Debt Instrument [Line Items]
Percentage of voting interest		49.90%
Debt instrument, term		5 years
Debt instrument, face amount		$ 150,000
Stated interest rate		9.00%
Greenlight Capital, Inc | Reverse Recapitalization | Term Loan Facility | Secured Debt
Debt Instrument [Line Items]
Repayments of Secured Debt	$ 154,900
Subsequent Event | Reverse Recapitalization | Term Loan Facility | Greenlight Capital, Inc | Secured Debt
Debt Instrument [Line Items]
Stated interest rate					10.00%
Subsidiary of JBGL | Centennial Park Richardson, LTD. [Member] | Notes Payable
Debt Instrument [Line Items]
Debt instrument, face amount						$ 300
Stated interest rate						0.00%

Debt (Schedule of Lines of Cred

Debt (Schedule of Lines of Credit Outstanding) (Details) - Subsidiary of JBGL - Inwood National Bank - USD ($)	Jul. 30, 2015	Sep. 30, 2015	Dec. 31, 2014	Oct. 13, 2014	Oct. 13, 2013	Dec. 31, 2012
Line of Credit Facility [Line Items]
Borrowings on lines of credit		$ 13,960,000	$ 14,061,000
Direct Finance Leases A
Line of Credit Facility [Line Items]
Borrowings on lines of credit		0	662,000
Maximum borrowing capacity						$ 4,800,000
Direct Finance Leases B
Line of Credit Facility [Line Items]
Borrowings on lines of credit		0	899,000
Maximum borrowing capacity						3,000,000
John's Creek
Line of Credit Facility [Line Items]
Borrowings on lines of credit		0	12,500,000
Maximum borrowing capacity					$ 25,000,000	$ 8,000,000
Stated interest rate				4.00%
Johns' Creek, Carrollton, Allen
Line of Credit Facility [Line Items]
Borrowings on lines of credit		$ 13,960,000	$ 0
Maximum borrowing capacity	$ 50,000,000
BorrowingBaseLimitationTotalValueOfland	50.00%
BorrowingBaseLimitationTotalValueOfLotsOwned	60.00%
MaximumValueOfLandUsedWhenCalculatingBorrowingBase	50.00%
Minimum rate on Inwood loan | Direct Finance Leases A
Line of Credit Facility [Line Items]
Stated interest rate						4.00%
Minimum rate on Inwood loan | Direct Finance Leases B
Line of Credit Facility [Line Items]
Stated interest rate						4.00%
Other Assets | Johns' Creek, Carrollton, Allen
Line of Credit Facility [Line Items]
Debt issuance cost	$ 400,000
Minimum | Johns' Creek, Carrollton, Allen
Line of Credit Facility [Line Items]
Stated interest rate	4.00%
Maximum | Johns' Creek, Carrollton, Allen
Line of Credit Facility [Line Items]
Stated interest rate	18.00%

Debt (Schedule of Long-term D35

Debt (Schedule of Long-term Debt - Notes Payable) (Details) - USD ($) $ in Thousands	1 Months Ended	9 Months Ended
	Jul. 31, 2014	Sep. 30, 2015	Sep. 30, 2014	Jul. 20, 2015	May. 22, 2015	Dec. 31, 2014	Apr. 16, 2014	Dec. 13, 2013	Apr. 15, 2013
Debt Instrument [Line Items]
Notes payable		$ 11,458				$ 12,151
Repayments of Notes Payable		3,898	$ 19,984
Notes Payable | Briar Ridge Investments, LTD
Debt Instrument [Line Items]
Notes payable		9,000				9,000
Notes Payable | Lakeside DFW Land, LTD
Debt Instrument [Line Items]
Notes payable		0				1,824
Notes Payable | Lyons Equities, Inc.[Member]
Debt Instrument [Line Items]
Notes payable		988				0
Notes Payable | Centennial Park Richardson, LTD. [Member]
Debt Instrument [Line Items]
Notes payable		304				0
Notes Payable | Subordinated Lot Notes
Debt Instrument [Line Items]
Notes payable		1,166				$ 1,327
Subsidiary of JBGL | Notes Payable | Briar Ridge Investments, LTD
Debt Instrument [Line Items]
Stated interest rate								6.00%
Interest Payable		$ 0
Debt instrument, face amount								$ 9,000
Subsidiary of JBGL | Notes Payable | Lakeside DFW Land, LTD
Debt Instrument [Line Items]
Stated interest rate							5.00%		6.00%
Debt instrument, face amount							$ 3,300		$ 3,500
Repayments of Notes Payable	$ 1,500
Subsidiary of JBGL | Notes Payable | Lyons Equities, Inc.[Member]
Debt Instrument [Line Items]
Stated interest rate					3.50%
Debt instrument, face amount					$ 1,000
Subsidiary of JBGL | Notes Payable | Centennial Park Richardson, LTD. [Member]
Debt Instrument [Line Items]
Stated interest rate				0.00%
Debt instrument, face amount				$ 300
Subsidiaries of the Company | Minimum | Notes Payable | Subordinated Lot Notes
Debt Instrument [Line Items]
Stated interest rate		8.00%
Subsidiaries of the Company | Maximum | Notes Payable | Subordinated Lot Notes
Debt Instrument [Line Items]
Stated interest rate		14.00%

Stockholders' Equity (Details)

Stockholders' Equity (Details) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended	3 Months Ended		9 Months Ended
	Jul. 30, 2015	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Jul. 23, 2015	Jul. 01, 2015
Class of Stock [Line Items]
Common Stock, Shares, Issued							17,000,000
Share Price							$ 10
AdditionalPurchaseOptionPeriod	30-day
CommonSharesGrantedToUnderwritersToCoverOver-Allotments							841,500
CommonSharesSoldPursuantToUnderwritersOption						444,897
Repayments of Secured Debt				$ 150,000	$ 0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance (shares)				31,346,084
Beginning balance				$ 181,597	198,819
Share-based compensation				227
Issuance of common stock under 2014 Equity Plan				91
IssuanceOfCommonStockInConnectionWithEquityOfferingValue				169,983
Contributions				87	592
Distributions				(6,423)	(17,221)
Net income		$ 5,286	$ 6,063	$ 18,478	26,743
Ending balance (shares)		48,813,889		48,813,889
Ending balance		$ 364,040	208,933	$ 364,040	208,933
Noncontrolling Interests
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance				9,739	9,709
Contributions				87	592
Distributions				(6,423)	(11,439)
Net income				7,846	8,290
Ending balance		11,249	7,152	11,249	7,152
Total Green Brick Partners, Inc. Stockholders’ Equity
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance				171,858	189,110
Share-based compensation				227
Issuance of common stock under 2014 Equity Plan				91
IssuanceOfCommonStockInConnectionWithEquityOfferingValue				169,983
Distributions					(5,782)
Net income				10,632	18,453
Ending balance		$ 352,791	$ 201,781	$ 352,791	$ 201,781
Common Stock
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance (shares)				31,346,084	11,108,500
Beginning balance				$ 313	$ 111
Issuance of common shares under 2014 Equity Plan (shares)				22,908
IssuanceOfCommonStockInConnectionEquityOfferingShare				17,444,897
IssuanceOfCommonStockInConnectionWithEquityOfferingValue				$ 175
Ending balance (shares)		48,813,889	11,108,500	48,813,889	11,108,500
Ending balance		$ 488	$ 111	$ 488	$ 111
Additional Paid-in Capital
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance				101,626	155,985
Share-based compensation				227
Issuance of common stock under 2014 Equity Plan				91
IssuanceOfCommonStockInConnectionWithEquityOfferingValue				169,808
Ending balance		271,752	155,985	271,752	155,985
Retained Earnings
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance				69,919	33,014
Distributions					(5,782)
Net income				10,632	18,453
Ending balance		$ 80,551	$ 45,685	$ 80,551	$ 45,685

Stockholders' Equity Equity Off

Stockholders' Equity Equity Offering (Details) - USD ($) $ / shares in Units, $ in Millions	1 Months Ended
	Jul. 30, 2015	Jul. 23, 2015	Jul. 01, 2015
Equity [Abstract]
Common Stock, Shares, Issued			17,000,000
Share Price			$ 10
AdditionalPurchaseOptionPeriod	30-day
CommonSharesGrantedToUnderwritersToCoverOver-Allotments			841,500
CommonSharesSoldPursuantToUnderwritersOption		444,897
ProceedsFromIssuanceOfCommonSharesNetOfUnderwritingFeesAndOfferingCosts	$ 170

Share-Based Compensation (Narra

Share-Based Compensation (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended		10 Months Ended
	Sep. 30, 2015	Sep. 30, 2015	Sep. 30, 2014	Oct. 27, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Shares granted		0	0
Allocated Share-based Compensation Expense	$ 0.1	$ 0.3
Shares issued in period				0
Compensation cost not yet recognized	$ 1.3	$ 1.3
Period for recognition		3 years 8 months 24 days

Share-Based Compensation Summar

Share-Based Compensation Summary of Restricted Stock Awards (Details) - Restricted Stock Awards	9 Months Ended
	Sep. 30, 2015$ / sharesshares
Number of Shares (in thousands)
Nonvested, December 31, 2014 (shares) | shares	0
Granted (shares) | shares	22,908
Vested (shares) | shares	0
Forfeited (shares) | shares	0
Nonvested, June 30, 2015 (shares) | shares	23,000
Weighted Average Grant Date Fair Value per Share
Nonvested, December 31, 2014 (usd per share)	$ 0
Granted (usd per share)	8.73
Vested (usd per share)	0
Forfeited (usd per share)	0
Nonvested, June 30, 2015 (usd per share)	$ 8.73

Share-Based Compensation (Summa

Share-Based Compensation (Summary of Stock Option Activity) (Details) - USD ($) $ / shares in Units, $ in Thousands	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Options outstanding, beginning balance (in shares)	500,000
Granted (in shares)	0	0
Exercised (in shares)	0
Forfeited (in shares)	0
Options outstanding, ending balance (in shares)	500,000
Options exercisable (in shares)	0
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]
Options outstanding, beginning balance (in dollars per share)	$ 7.49
Granted (in dollars per share)	0
Exercised (in dollars per share)	0
Forfeited (in dollars per share)	0
Options outstanding, ending balance (in dollars per share)	7.49
Options exercisable (in dollars per share)	$ 0
Options outstanding, weighted average remaining life (in years)	9 years 5 months 77 days
Options exercisable, weighted average remaining life (in years)	0 years
Options outstanding, aggregate intrinsic value	$ 397
Options exercisable, aggregate intrinsic value	$ 0

Share-Based Compensation (Sum41

Share-Based Compensation (Summary of Unvested Stock Options Activity) (Details) shares in Thousands	9 Months Ended
	Sep. 30, 2015$ / sharesshares
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Number of Shares [Roll Forward]
Unvested, beginning balance (in shares) | shares	500
Granted (in shares) | shares	0
Vested (in shares) | shares	0
Forfeited (in shares) | shares	0
Unvested, ending balance (in shares) | shares	500
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Unvested, beginning balance (in dollars per share)	$ 2.88
Granted (in dollars per share)	0
Vested (in dollars per share)	0
Forfeited (in dollars per share)	0
Unvested, ending balance (in dollars per share)	$ 2.88

Income Taxes (Narrative) (Detai

Income Taxes (Narrative) (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Operating Loss Carryforwards [Line Items]
Income tax provision	$ 1,856,000	$ 0	$ 6,229,000	$ 338,000
Effective Income Tax Rate Reconciliation, Percent	26.00%	0.00%	25.20%	1.20%
Deferred tax assets	$ 83,400,000		$ 83,400,000
Valuation allowance for deferred tax assets	1,200,000		1,200,000
Uncertain income tax positions	0		$ 0		$ 0
Federal
Operating Loss Carryforwards [Line Items]
Net operating loss carryforward					$ 178,800,000
Operating loss carryforward, expiration date			Dec. 31, 2029
State
Operating Loss Carryforwards [Line Items]
Net operating loss carryforward	21,600,000		$ 21,600,000
Valuation allowance related to state loss carryforwards	$ 21,600,000		$ 21,600,000

Related Party Transactions (Det

Related Party Transactions (Details) - USD ($)	Jul. 01, 2015	Oct. 27, 2014	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Oct. 27, 2014	Dec. 31, 2014
Related Party Transaction [Line Items]
Management fees expense – related party			$ 0	$ 390,000	$ 0	$ 1,160,000
Interest incurred			$ 1,890,000	308,000	9,238,000	1,138,000
Repayments of Secured Debt					$ 150,000,000	0
Ownership percentage by parent			50.00%		50.00%
Ownership percentage by noncontrolling owners			50.00%		50.00%
Net income			$ 11,249,000		$ 11,249,000			$ 9,739,000
Executive
Related Party Transaction [Line Items]
Management fee percentage							0.375%
Management fees expense – related party				400,000		1,200,000
CentreLiving
Related Party Transaction [Line Items]
Percentage of voting interest			51.00%		51.00%
Ownership percentage by parent			50.00%		50.00%
Ownership percentage by noncontrolling owners			50.00%		50.00%
PercentofCentreLivingOperationsConsolidated			100.00%
Net income			$ 300,000		$ 300,000
Texas Headquarters | Selling, General and Administrative Expenses | Family Members of CEO
Related Party Transaction [Line Items]
Rent expense				$ 1,016		$ 13,913
Reverse Recapitalization | Term Loan Facility | Secured Debt | Greenlight Capital, Inc
Related Party Transaction [Line Items]
Percentage of voting interest		49.90%					49.90%
Debt instrument, term		5 years
Debt instrument, face amount		$ 150,000,000					$ 150,000,000
Stated interest rate		9.00%					9.00%
Greenlight Capital, Inc | Reverse Recapitalization | Term Loan Facility | Secured Debt
Related Party Transaction [Line Items]
Repayments of Secured Debt	$ 154,900,000

Fair Value Measurements (Detail

Fair Value Measurements (Details) - USD ($)	9 Months Ended	12 Months Ended
	Sep. 30, 2015	Dec. 31, 2014
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value adjustment to assets	$ 0	$ 0
Fair value adjustment to liabilities	$ 0	$ 0

Commitments and Contingencies (

Commitments and Contingencies (Narrative) (Details)	9 Months Ended
	Sep. 30, 2015USD ($)claim	Dec. 31, 2014USD ($)
Operating Leased Assets [Line Items]
Loss contingency accruals	$ 0	$ 0
Loss Contingency, Pending Claims, Number | claim	0
Minimum
Operating Leased Assets [Line Items]
Estimated accrual amount per home closed	$ 250
Maximum
Operating Leased Assets [Line Items]
Estimated accrual amount per home closed	$ 800

Segment Information (Details)

Segment Information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Segment Reporting Information [Line Items]
Sale of residential units	$ 69,165	$ 39,901	$ 179,195	$ 144,586
Sale of land and lots	6,033	9,775	26,442	33,942
Gross profit	15,808	15,024	49,447	47,355
Land Development
Segment Reporting Information [Line Items]
Sale of land and lots			26,442	33,942
Operating Segments
Segment Reporting Information [Line Items]
Revenues	75,198	49,676	205,637	178,528
Gross profit	15,808	15,024	49,447	47,355
Assets	318,027		318,027		$ 274,303
Operating Segments | Land Development
Segment Reporting Information [Line Items]
Sale of land and lots	6,033	9,775
Gross Profit on Land and Lots	1,816	2,355	7,347	8,613
Assets	101,132		101,132		100,171
Texas | Operating Segments
Segment Reporting Information [Line Items]
Sale of residential units	26,438	19,042	89,585	54,035
Gross Profit, Home Building	7,054	6,655	22,744	14,497
Assets	57,679		57,679		44,771
Georgia | Operating Segments
Segment Reporting Information [Line Items]
Sale of residential units	42,727	20,859	89,610	90,551
Gross Profit, Home Building	6,938	$ 6,014	19,356	$ 24,245
Assets	$ 159,216		$ 159,216		$ 129,361