Statement of Shareholders' Equity (Statement) - USD ($) $ in Thousands	Total	Additional Paid-in Capital [Member]	Common Stock [Member]	Retained Earnings	Noncontrolling Interest	Treasury Stock, Common	Parent
Common stock, shares issued (in shares)	46,032,930
Common Stock, Value, Issued	$ 460
Preferred stock, $0.01 par value: 5,000,000 shares authorized; 2,000 issued and outstanding as of June 30, 2024 and December 31, 2023, respectively	$ 47,696
Preferred stock, shares outstanding (in shares)	2,000
Treasury Stock, Common, Shares	0
Treasury Stock, Value	$ 0
Additional paid-in capital	259,410
Retained Earnings (Accumulated Deficit)	754,341
Stockholders' Equity Attributable to Parent	1,061,907
Stockholders' Equity Attributable to Noncontrolling Interest	20,908
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	$ 1,082,815
Shares Issued, Shares, Share-based Payment Arrangement, after Forfeiture	(209,196)
APIC, Share-based Payment Arrangement, Increase for Cost Recognition							$ 1,029
Dividends	$ (1,438)			$ (1,438)			(1,438)
Stock Repurchased During Period, Value	(27,991)						(27,991)
Stock Repurchased and Retired During Period, Shares			803,591			803,591
Treasury Stock, Retired, Cost Method, Amount		$ (4,592)		(23,391)		$ (27,991)
Net income attributable to Green Brick Partners, Inc.	139,450			139,450			139,450
Net Income (Loss) Attributable to Nonredeemable Noncontrolling Interest					$ 6,296
Net Income (Loss), Including Portion Attributable to Nonredeemable Noncontrolling Interest	145,746
Temporary Equity, Accretion to Redemption Value, Adjustment	(2,137)	(2,137)					(2,137)
Shares Issued, Value, Share-based Payment Arrangement, after Forfeiture	$ (5,233)	(5,230)	$ (3)				(5,233)
Share-based Payment Arrangement, Shares Withheld for Tax Withholding Obligation	(59,857)
Share-based Payment Arrangement, Decrease for Tax Withholding Obligation	$ (1,976)	1,975	1				(1,976)
Stock Repurchased During Period, Shares	(803,591)
Stock Repurchased and Retired During Period, Value			$ (8)
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders	$ 11,056				11,056
APIC, Share-based Payment Arrangement, Option, Increase for Cost Recognition	$ 1,029	1,029
Common stock, shares issued (in shares)	46,211,430
Common Stock, Value, Issued	$ 462
Preferred stock, $0.01 par value: 5,000,000 shares authorized; 2,000 issued and outstanding as of June 30, 2024 and December 31, 2023, respectively	$ 47,696
Preferred stock, shares outstanding (in shares)	2,000
Treasury Stock, Common, Shares	(467,875)
Treasury Stock, Value	$ 15,351
Additional paid-in capital	263,545
Retained Earnings (Accumulated Deficit)	817,802
Stockholders' Equity Attributable to Parent	1,114,154
Stockholders' Equity Attributable to Noncontrolling Interest	12,448
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	1,126,602
Shares Issued, Shares, Share-based Payment Arrangement, after Forfeiture			(29,161)
APIC, Share-based Payment Arrangement, Increase for Cost Recognition	462	462					462
Dividends	(719)			(719)			(719)
Stock Repurchased During Period, Value	(12,640)					$ (12,640)	(12,640)
Stock Repurchased and Retired During Period, Shares			803,591			803,591
Treasury Stock, Retired, Cost Method, Amount	0	(4,592)	$ (8)	(23,391)		$ (27,991)	0
Noncontrolling Interest, Change in Redemption Value	2,450
Net income attributable to Green Brick Partners, Inc.	75,270			75,270			75,270
Net Income (Loss) Attributable to Nonredeemable Noncontrolling Interest					3,700
Net Income (Loss), Including Portion Attributable to Nonredeemable Noncontrolling Interest	78,970
Temporary Equity, Accretion to Redemption Value, Adjustment	$ (2,450)	(2,450)					(2,450)
Stock Repurchased During Period, Shares						(335,716)
Common stock, shares issued (in shares)	45,378,678
Common Stock, Value, Issued	$ 454
Preferred stock, $0.01 par value: 5,000,000 shares authorized; 2,000 issued and outstanding as of June 30, 2024 and December 31, 2023, respectively	$ 47,696
Preferred stock, shares outstanding (in shares)	2,000
Preferred Stock, Value, Outstanding	$ 47,696
Treasury Stock, Common, Shares	0
Treasury Stock, Value	$ 0
Additional paid-in capital	256,965
Retained Earnings (Accumulated Deficit)	868,962
Stockholders' Equity Attributable to Parent	1,174,077
Stockholders' Equity Attributable to Noncontrolling Interest	16,148
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	$ 1,190,225
Common stock, shares issued (in shares)	45,005,175
Common Stock, Value, Issued	$ 450
Preferred stock, $0.01 par value: 5,000,000 shares authorized; 2,000 issued and outstanding as of June 30, 2024 and December 31, 2023, respectively	$ 47,603
Preferred stock, shares outstanding (in shares)	2,000
Treasury Stock, Common, Shares	0
Treasury Stock, Value	$ 0
Additional paid-in capital	255,614
Retained Earnings (Accumulated Deficit)	997,037
Stockholders' Equity Attributable to Parent	1,300,704
Stockholders' Equity Attributable to Noncontrolling Interest	17,309
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	1,318,013
Shares Issued, Shares, Share-based Payment Arrangement, after Forfeiture			(636,777)
APIC, Share-based Payment Arrangement, Increase for Cost Recognition	1,292	1,292					1,292
Dividends	(1,438)			(1,438)			(1,438)
Stock Repurchased During Period, Value	(42,590)					$ (42,590)	(42,590)
Stock Repurchased and Retired During Period, Shares			459,656			459,656
Treasury Stock, Retired, Cost Method, Amount		(2,647)		(22,746)		$ (25,398)
Noncontrolling Interest, Change in Redemption Value	(1,965)	(1,965)					(1,965)
Net income attributable to Green Brick Partners, Inc.	188,659			188,659			188,659
Net Income (Loss) Attributable to Nonredeemable Noncontrolling Interest					13,994
Net Income (Loss), Including Portion Attributable to Nonredeemable Noncontrolling Interest	202,653
Shares Issued, Value, Share-based Payment Arrangement, after Forfeiture	(5,849)	(5,843)	$ (6)				(5,849)
Share-based Payment Arrangement, Shares Withheld for Tax Withholding Obligation			(284,521)
Share-based Payment Arrangement, Decrease for Tax Withholding Obligation	(11,276)	(11,274)	$ 2				(11,276)
Stock Repurchased During Period, Shares						(762,980)
Stock Repurchased and Retired During Period, Value			$ (5)
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders	$ 6,785				6,785
Common stock, shares issued (in shares)	45,096,392
Common Stock, Value, Issued	$ 451
Preferred stock, $0.01 par value: 5,000,000 shares authorized; 2,000 issued and outstanding as of June 30, 2024 and December 31, 2023, respectively	$ 47,603
Preferred stock, shares outstanding (in shares)	2,000
Treasury Stock, Common, Shares	(71,241)
Treasury Stock, Value	$ 3,758
Additional paid-in capital	259,412
Retained Earnings (Accumulated Deficit)	1,079,619
Stockholders' Equity Attributable to Parent	1,383,327
Stockholders' Equity Attributable to Noncontrolling Interest	16,364
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	1,399,691
Shares Issued, Shares, Share-based Payment Arrangement, after Forfeiture			(500,000)
APIC, Share-based Payment Arrangement, Increase for Cost Recognition	779	779					779
Dividends	(719)			(719)			(719)
Stock Repurchased During Period, Value	(38,832)					$ (38,832)	(38,832)
Stock Repurchased and Retired During Period, Shares			459,656
Treasury Stock, Retired, Cost Method, Amount	0	(2,647)	$ (5)	(22,746)		$ (25,398)	0
Noncontrolling Interest, Change in Redemption Value	(1,565)	(1,565)					(1,565)
Net income attributable to Green Brick Partners, Inc.	105,358			$ 105,358			105,358
Net Income (Loss) Attributable to Nonredeemable Noncontrolling Interest					$ 8,154
Net Income (Loss), Including Portion Attributable to Nonredeemable Noncontrolling Interest	113,512
Shares Issued, Value, Share-based Payment Arrangement, after Forfeiture		(5)	$ (5)
Share-based Payment Arrangement, Shares Withheld for Tax Withholding Obligation			(238,961)
Share-based Payment Arrangement, Decrease for Tax Withholding Obligation	$ (9,113)	$ (9,111)	$ (2)				$ 9,113
Stock Repurchased During Period, Shares						(691,739)
Treasury Stock, Shares, Retired						459,656
Common stock, shares issued (in shares)	44,897,775
Common Stock, Value, Issued	$ 449
Preferred stock, $0.01 par value: 5,000,000 shares authorized; 2,000 issued and outstanding as of June 30, 2024 and December 31, 2023, respectively	$ 47,603
Preferred stock, shares outstanding (in shares)	2,000
Preferred Stock, Value, Outstanding	$ 47,603
Treasury Stock, Common, Shares	(303,324)
Treasury Stock, Value	$ 17,192
Additional paid-in capital	246,863
Retained Earnings (Accumulated Deficit)	1,161,512
Stockholders' Equity Attributable to Parent	1,439,235
Stockholders' Equity Attributable to Noncontrolling Interest	24,518
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	$ 1,463,753