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Statement of Shareholders' Equity (Statement) - USD ($) $ in Thousands | Total | Additional Paid-in Capital [Member] | Common Stock [Member] | Retained Earnings | Noncontrolling Interest
--- | --- | --- | --- | --- | ---
Statement of Stockholders' Equity [Abstract] |  |  |  |  |
Additional Paid in Capital | $ 290,799 |  |  |  |
Treasury Stock, Value | $ 3,167 |  |  |  |
Treasury Stock, Common, Shares | 391,939 |  |  |  |
Common Stock, Shares, Issued | 50,879,949 |  |  |  |
Common stock, $0.01 par value: 100,000,000 shares authorized; 51,151,911 and 51,053,858 issued and 50,759,972 and 50,661,919 outstanding as of June 30, 2021 and December 31, 2020, respectively | $ 509 |  |  |  |
Treasury Stock, Value | $ 3,167 |  |  |  |
Common Stock, Shares, Issued | 50,879,949 |  |  |  |
Common stock, $0.01 par value: 100,000,000 shares authorized; 51,151,911 and 51,053,858 issued and 50,759,972 and 50,661,919 outstanding as of June 30, 2021 and December 31, 2020, respectively | $ 509 |  |  |  |
Treasury Stock, Common, Shares | 391,939 |  |  |  |
Additional Paid in Capital | $ 290,799 |  |  |  |
Retained Earnings (Accumulated Deficit) | 235,027 |  |  |  |
Stockholders' Equity Attributable to Parent | 523,168 |  |  |  |
Stockholders' Equity Attributable to Noncontrolling Interest | 13,227 |  |  |  |
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest | $ 536,395 |  |  |  |
Shares Issued, Shares, Share-based Payment Arrangement, after Forfeiture | 249,617 |  |  |  |
Shares Issued, Value, Share-based Payment Arrangement, after Forfeiture | $ 1,601 | $ 1,598 | $ 3 |  |
Share-based Payment Arrangement, Decrease for Tax Withholding Obligation | $ 592 | (591) | (1) |  |
Share-based Payment Arrangement, Shares Withheld for Tax Withholding Obligation | 75,708 |  |  |  |
APIC, Share-based Payment Arrangement, Increase for Cost Recognition | $ 218 |  |  |  |
Temporary Equity, Accretion to Redemption Value, Adjustment |  | 863 |  |  |
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders | 5,251 |  |  |  |
Net Income (Loss) Attributable to Nonredeemable Noncontrolling Interest | 747 |  |  |  |
Net Income (Loss), Including Portion Attributable to Nonredeemable Noncontrolling Interest | 50,311 |  |  |  |
APIC, Share-based Payment Arrangement, Option, Increase for Cost Recognition | 218 |  |  |  |
Temporary Equity, Accretion to Redemption Value, Adjustment |  | 863 |  |  |
Share-based Payment Arrangement, Decrease for Tax Withholding Obligation | 592 | (591) | (1) |  |
Shares Issued, Value, Share-based Payment Arrangement, after Forfeiture | $ 1,601 | 1,598 | 3 |  |
Shares Issued, Shares, Share-based Payment Arrangement, after Forfeiture | 249,617 |  |  |  |
Share-based Payment Arrangement, Shares Withheld for Tax Withholding Obligation | 75,708 |  |  |  |
APIC, Share-based Payment Arrangement, Increase for Cost Recognition | $ 218 |  |  |  |
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders | 5,251 |  |  |  |
Net income attributable to Green Brick Partners, Inc. | 49,564 |  |  |  |
Net Income (Loss) Attributable to Nonredeemable Noncontrolling Interest | 747 |  |  |  |
Net Income (Loss), Including Portion Attributable to Nonredeemable Noncontrolling Interest | 50,311 |  |  |  |
Noncontrolling Interest, Increase from Business Combination | 400 |  |  |  |
APIC, Share-based Payment Arrangement, Option, Increase for Cost Recognition | 218 |  |  |  |
Payment for Contingent Consideration Liability, Operating Activities | 5,267 |  |  |  |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Changes, Purchase of Interest by Parent | 937 |  |  |  |
Additional Paid in Capital | 294,695 |  |  |  |
Treasury Stock, Value | $ 3,167 |  |  |  |
Treasury Stock, Common, Shares | 391,939 |  |  |  |
Common Stock, Shares, Issued | 51,008,861 |  |  |  |
Common stock, $0.01 par value: 100,000,000 shares authorized; 51,151,911 and 51,053,858 issued and 50,759,972 and 50,661,919 outstanding as of June 30, 2021 and December 31, 2020, respectively | $ 510 |  |  |  |
Treasury Stock, Value | $ 3,167 |  |  |  |
Common Stock, Shares, Issued | 51,008,861 |  |  |  |
Common stock, $0.01 par value: 100,000,000 shares authorized; 51,151,911 and 51,053,858 issued and 50,759,972 and 50,661,919 outstanding as of June 30, 2021 and December 31, 2020, respectively | $ 510 |  |  |  |
Treasury Stock, Common, Shares | 391,939 |  |  |  |
Additional Paid in Capital | $ 294,695 |  |  |  |
Retained Earnings (Accumulated Deficit) | 250,944 |  |  |  |
Stockholders' Equity Attributable to Parent | 542,982 |  |  |  |
Stockholders' Equity Attributable to Noncontrolling Interest | 10,900 |  |  |  |
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest | $ 553,882 |  |  |  |
Shares Issued, Shares, Share-based Payment Arrangement, after Forfeiture | 44,997 |  |  |  |
Shares Issued, Value, Share-based Payment Arrangement, after Forfeiture | $ 1 |  | 1 |  |
APIC, Share-based Payment Arrangement, Increase for Cost Recognition |  | 84 |  |  |
Temporary Equity, Accretion to Redemption Value, Adjustment |  | (1,892) |  |  |
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders | 2,281 |  |  |  |
Net Income (Loss) Attributable to Nonredeemable Noncontrolling Interest | 504 |  |  |  |
Net Income (Loss), Including Portion Attributable to Nonredeemable Noncontrolling Interest | 34,151 |  |  |  |
Temporary Equity, Accretion to Redemption Value, Adjustment |  | (1,892) |  |  |
Shares Issued, Value, Share-based Payment Arrangement, after Forfeiture | $ 1 |  | 1 |  |
Shares Issued, Shares, Share-based Payment Arrangement, after Forfeiture | 44,997 |  |  |  |
APIC, Share-based Payment Arrangement, Increase for Cost Recognition |  | 84 |  |  |
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders | $ 2,281 |  |  |  |
Net income attributable to Green Brick Partners, Inc. | 33,647 |  |  |  |
Net Income (Loss) Attributable to Nonredeemable Noncontrolling Interest | 504 |  |  |  |
Net Income (Loss), Including Portion Attributable to Nonredeemable Noncontrolling Interest | 34,151 |  |  |  |
Noncontrolling Interest, Change in Redemption Value | 1,892 |  |  |  |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Changes, Purchase of Interest by Parent | 937 |  |  |  | $ (937)
Additional Paid in Capital | 292,887 | 292,887 |  |  |
Treasury Stock, Value | $ 3,167 |  |  |  |
Treasury Stock, Common, Shares | 391,939 |  |  |  |
Common Stock, Shares, Issued | 51,053,858 |  |  |  |
Common stock, $0.01 par value: 100,000,000 shares authorized; 51,151,911 and 51,053,858 issued and 50,759,972 and 50,661,919 outstanding as of June 30, 2021 and December 31, 2020, respectively | $ 511 |  | 511 |  |
Treasury Stock, Value | $ 3,167 |  |  |  |
Common Stock, Shares, Issued | 51,053,858 |  |  |  |
Common stock, $0.01 par value: 100,000,000 shares authorized; 51,151,911 and 51,053,858 issued and 50,759,972 and 50,661,919 outstanding as of June 30, 2021 and December 31, 2020, respectively | $ 511 |  | 511 |  |
Treasury Stock, Common, Shares | 391,939 |  |  |  |
Additional Paid in Capital | $ 292,887 | 292,887 |  |  |
Retained Earnings (Accumulated Deficit) | 285,528 |  |  |  |
Stockholders' Equity Attributable to Parent | 575,759 |  |  |  |
Stockholders' Equity Attributable to Noncontrolling Interest | 8,186 |  |  |  |
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest | 583,945 |  |  |  |
Additional Paid in Capital | 293,242 |  |  |  |
Treasury Stock, Value | $ 3,167 |  |  |  |
Treasury Stock, Common, Shares | 391,939 |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number | 500,000 |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price | $ 7.49 |  |  |  |
Common Stock, Shares, Issued | 51,053,858 |  |  |  |
Common stock, $0.01 par value: 100,000,000 shares authorized; 51,151,911 and 51,053,858 issued and 50,759,972 and 50,661,919 outstanding as of June 30, 2021 and December 31, 2020, respectively | $ 511 |  |  |  |
Treasury Stock, Value | $ 3,167 |  |  |  |
Common Stock, Shares, Issued | 51,053,858 |  |  |  |
Common stock, $0.01 par value: 100,000,000 shares authorized; 51,151,911 and 51,053,858 issued and 50,759,972 and 50,661,919 outstanding as of June 30, 2021 and December 31, 2020, respectively | $ 511 |  |  |  |
Treasury Stock, Common, Shares | 391,939 |  |  |  |
Additional Paid in Capital | $ 293,242 |  |  |  |
Retained Earnings (Accumulated Deficit) | 349,656 |  |  |  |
Stockholders' Equity Attributable to Parent | 640,242 |  |  |  |
Stockholders' Equity Attributable to Noncontrolling Interest | 9,167 |  |  |  |
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest | $ 649,409 |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term | 3 years 3 months 29 days |  |  |  |
Shares Issued, Shares, Share-based Payment Arrangement, after Forfeiture | 139,371 |  |  |  |
Shares Issued, Value, Share-based Payment Arrangement, after Forfeiture | $ 2,437 | 2,436 | 1 |  |
Share-based Payment Arrangement, Decrease for Tax Withholding Obligation | $ 834 | 833 | (1) |  |
Share-based Payment Arrangement, Shares Withheld for Tax Withholding Obligation | 41,318 |  |  |  |
APIC, Share-based Payment Arrangement, Increase for Cost Recognition | $ 319 |  |  |  |
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders | 1,606 |  |  |  |
Net Income (Loss) Attributable to Nonredeemable Noncontrolling Interest | 6,741 |  |  |  |
Net Income (Loss), Including Portion Attributable to Nonredeemable Noncontrolling Interest | $ 84,973 |  |  |  |
Granted (in shares) |  |  |  |  |
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price | $ 0 |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period | 0 |  |  |  |
Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price | $ 0 |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period | 0 |  |  |  |
Share-based Compensation Arrangements by Share-based Payment Award, Options, Forfeitures in Period, Weighted Average Exercise Price | $ 0 |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term | 3 years 3 months 29 days |  |  |  |
Share-based Payment Arrangement, Decrease for Tax Withholding Obligation | $ 834 | 833 | (1) |  |
Shares Issued, Value, Share-based Payment Arrangement, after Forfeiture | $ 2,437 | 2,436 | $ 1 |  |
Shares Issued, Shares, Share-based Payment Arrangement, after Forfeiture | 139,371 |  |  |  |
Share-based Payment Arrangement, Shares Withheld for Tax Withholding Obligation | 41,318 |  |  |  |
APIC, Share-based Payment Arrangement, Increase for Cost Recognition | $ 319 |  |  |  |
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders | 1,606 |  |  |  |
Net income attributable to Green Brick Partners, Inc. | 78,232 |  |  |  |
Net Income (Loss) Attributable to Nonredeemable Noncontrolling Interest | 6,741 |  |  |  |
Net Income (Loss), Including Portion Attributable to Nonredeemable Noncontrolling Interest | 84,973 |  |  |  |
Noncontrolling Interest, Change in Redemption Value | (3,007) | (3,007) |  |  |
Payment for Contingent Consideration Liability, Operating Activities | 368 |  |  |  |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Changes, Purchase of Interest by Parent |  |  |  | $ 937 | $ (937)
Additional Paid in Capital | 293,162 |  |  |  |
Treasury Stock, Value | $ 3,167 |  |  |  |
Treasury Stock, Common, Shares | 391,939 |  |  |  |
Common Stock, Shares, Issued | 51,124,215 |  |  |  |
Common stock, $0.01 par value: 100,000,000 shares authorized; 51,151,911 and 51,053,858 issued and 50,759,972 and 50,661,919 outstanding as of June 30, 2021 and December 31, 2020, respectively | $ 511 |  |  |  |
Treasury Stock, Value | $ 3,167 |  |  |  |
Common Stock, Shares, Issued | 51,124,215 |  |  |  |
Common stock, $0.01 par value: 100,000,000 shares authorized; 51,151,911 and 51,053,858 issued and 50,759,972 and 50,661,919 outstanding as of June 30, 2021 and December 31, 2020, respectively | $ 511 |  |  |  |
Treasury Stock, Common, Shares | 391,939 |  |  |  |
Additional Paid in Capital | $ 293,162 |  |  |  |
Retained Earnings (Accumulated Deficit) | 375,625 |  |  |  |
Stockholders' Equity Attributable to Parent | 666,131 |  |  |  |
Stockholders' Equity Attributable to Noncontrolling Interest | 10,630 |  |  |  |
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest | $ 676,761 |  |  |  |
Shares Issued, Shares, Share-based Payment Arrangement, after Forfeiture | 27,696 |  |  |  |
APIC, Share-based Payment Arrangement, Increase for Cost Recognition | $ 173 |  |  |  |
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders | 1,606 |  |  |  |
Net Income (Loss) Attributable to Nonredeemable Noncontrolling Interest | 5,278 |  |  |  |
Net Income (Loss), Including Portion Attributable to Nonredeemable Noncontrolling Interest | $ 57,541 |  |  |  |
Shares Issued, Shares, Share-based Payment Arrangement, after Forfeiture | 27,696 |  |  |  |
APIC, Share-based Payment Arrangement, Increase for Cost Recognition | $ 173 |  |  |  |
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders | 1,606 |  |  |  |
Net income attributable to Green Brick Partners, Inc. | 52,263 |  |  |  |
Net Income (Loss) Attributable to Nonredeemable Noncontrolling Interest | 5,278 |  |  |  |
Net Income (Loss), Including Portion Attributable to Nonredeemable Noncontrolling Interest | 57,541 |  |  |  |
Noncontrolling Interest, Change in Redemption Value | 1,178 | $ (1,178) |  |  |
Additional Paid in Capital | 292,157 |  |  |  |
Treasury Stock, Value | $ 3,167 |  |  |  |
Treasury Stock, Common, Shares | 391,939 |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number | 500,000 |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price | $ 7.49 |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value | $ 7,625 |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number | 500,000 |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price | $ 7.49 |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value | $ 7,625 |  |  |  |
Common Stock, Shares, Issued | 51,151,911 |  |  |  |
Common stock, $0.01 par value: 100,000,000 shares authorized; 51,151,911 and 51,053,858 issued and 50,759,972 and 50,661,919 outstanding as of June 30, 2021 and December 31, 2020, respectively | $ 511 |  |  |  |
Treasury Stock, Value | $ 3,167 |  |  |  |
Common Stock, Shares, Issued | 51,151,911 |  |  |  |
Common stock, $0.01 par value: 100,000,000 shares authorized; 51,151,911 and 51,053,858 issued and 50,759,972 and 50,661,919 outstanding as of June 30, 2021 and December 31, 2020, respectively | $ 511 |  |  |  |
Treasury Stock, Common, Shares | 391,939 |  |  |  |
Additional Paid in Capital | $ 292,157 |  |  |  |
Retained Earnings (Accumulated Deficit) | 427,888 |  |  |  |
Stockholders' Equity Attributable to Parent | 717,389 |  |  |  |
Stockholders' Equity Attributable to Noncontrolling Interest | 14,302 |  |  |  |
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest | $ 731,691 |  |  |  |

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