Organization and Basis of Presentation	12 Months Ended
Dec. 31, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization and Basis of Presentation	ORGANIZATION AND BASIS OF PRESENTATION References to the “Company”, “Green Brick”, “we”, “us” or “our” refer to the combined company, which was 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 $275.0 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 $275.0 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”), which provided for a five year term loan facility (the “Term Loan Facility”). In 2015, the Term Loan Facility was repaid in full. At the time the Transaction was completed, BioFuel was a non-operating public shell company 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. 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, is 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 were brought forward at their book value and no goodwill was recognized in connection with the Transaction. As a result of the Transaction, Green Brick changed its business direction and is now a diversified homebuilding and land development company. We are a diversified homebuilding and land development company. 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 also own a noncontrolling interest in Challenger Homes (as discussed in Note 3) in Colorado Springs, Colorado. 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. Equity Offering On July 1, 2015, the Company completed an underwritten public offering of 17 million shares of its common stock at a price 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 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. Upon repayment, the Term Loan Facility was terminated and 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. Basis of Presentation The accompanying 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”). Principles of Consolidation The Company evaluated its wholly-owned subsidiaries and controlled builders under ASC 810, Consolidation (“ASC 810”) and concluded that each controlled builder is a variable interest entity (“VIE”). The Company owns a 50% equity interest and has 51% of the voting interest in each controlled builder. In addition, the Company holds two of the three board seats for each controlled builder and is able to exercise control over the operations of each controlled builder. The Company accounts for its controlled builders under the variable interest model and is the primary beneficiary of each controlled builder in accordance with ASC 810. Therefore, the financial statements of the controlled builders are consolidated in the consolidated financial statements following the variable interest model (see Note 2). All intercompany balances and transactions have been eliminated in consolidation. The Company uses the equity method of accounting for its investment in an unconsolidated entity over which it exercises significant influence but does not have a controlling interest. Under the equity method, the Company’s share of the unconsolidated entity’s earnings or losses, if any, is included in the consolidated statements of income. Generally, the Company forms subsidiaries for each selling community and or homebuilding project in which it invests.

ORGANIZATION AND BASIS OF PRESENTATION

References to the “Company”, “Green Brick”, “we”, “us” or “our” refer to the combined company, which was 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 $275.0 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 $275.0 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”), which provided for a five year term loan facility (the “Term Loan Facility”). In 2015, the Term Loan Facility was repaid in full.

At the time the Transaction was completed, BioFuel was a non-operating public shell company 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.

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, is 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 were brought forward at their book value and no goodwill was recognized in connection with the Transaction.

As a result of the Transaction, Green Brick changed its business direction and is now a diversified homebuilding and land development company. We are a diversified homebuilding and land development company. 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 also own a noncontrolling interest in Challenger Homes (as discussed in Note 3) in Colorado Springs, Colorado. 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.

Equity Offering

On July 1, 2015, the Company completed an underwritten public offering of 17 million shares of its common stock at a price 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 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. Upon repayment, the Term Loan Facility was terminated and 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.

Basis of Presentation

The accompanying 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”).

Principles of Consolidation

The Company evaluated its wholly-owned subsidiaries and controlled builders under ASC 810, Consolidation (“ASC 810”) and concluded that each controlled builder is a variable interest entity (“VIE”). The Company owns a 50% equity interest and has 51% of the voting interest in each controlled builder. In addition, the Company holds two of the three board seats for each controlled builder and is able to exercise control over the operations of each controlled builder. The Company accounts for its controlled builders under the variable interest model and is the primary beneficiary of each controlled builder in accordance with ASC 810. Therefore, the financial statements of the controlled builders are consolidated in the consolidated financial statements following the variable interest model (see Note 2). All intercompany balances and transactions have been eliminated in consolidation.

The Company uses the equity method of accounting for its investment in an unconsolidated entity over which it exercises significant influence but does not have a controlling interest. Under the equity method, the Company’s share of the unconsolidated entity’s earnings or losses, if any, is included in the consolidated statements of income.

Generally, the Company forms subsidiaries for each selling community and or homebuilding project in which it invests.