Statement of Shareholders' Equity (Statement) - USD ($) $ in Thousands	Total	Additional Paid-in Capital [Member]	Common Stock [Member]	Retained Earnings	Noncontrolling Interest	Preferred stock GRBK PRA	Parent	Treasury Stock, Common
Treasury Stock, Value	$ 0
Common Stock, Shares, Issued	46,032,930
Common stock, $0.01 par value: 100,000,000 shares authorized; 45,096,392 issued and 45,025,151 outstanding as of March 31, 2024 and 45,005,175 issued and outstanding as of December 31, 2023, respectively	$ 460
Treasury Stock, Common, Shares	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
Preferred stock, shares outstanding (in shares)						2,000
Preferred Stock, Including Additional Paid in Capital	$ 47,696
Common Stock, Shares, Issued	46,032,930
Temporary Equity, Accretion to Redemption Value, Adjustment	$ 313	$ 313					$ 313
Share-based Payment Arrangement, Decrease for Tax Withholding Obligation	1,976		$ (1)				1,976
Shares Issued, Value, Share-based Payment Arrangement, after Forfeiture	5,233	$ 5,230	$ 3				5,233
Shares Issued, Shares, Share-based Payment Arrangement, after Forfeiture			238,357
Share-based Payment Arrangement, Shares Withheld for Tax Withholding Obligation		1,975,000	(59,857)
APIC, Share-based Payment Arrangement, Increase for Cost Recognition		$ 567					567
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders	11,056				$ 11,056
Net income attributable to Green Brick Partners, Inc.	64,180			$ 64,180			64,180
Net Income (Loss) Attributable to Nonredeemable Noncontrolling Interest					2,596
Net Income (Loss), Including Portion Attributable to Nonredeemable Noncontrolling Interest	66,776
Noncontrolling Interest, Change in Redemption Value	(313)
APIC, Share-based Payment Arrangement, Option, Increase for Cost Recognition	567
Dividends, Common Stock, Cash	(719)			(719)			(719)
Stock Repurchased During Period, Shares								467,875
Stock Repurchased During Period, Value	(3,758)						3,758	$ 15,351
Treasury Stock, Value	$ 15,351
Common Stock, Shares, Issued	46,211,430
Common stock, $0.01 par value: 100,000,000 shares authorized; 45,096,392 issued and 45,025,151 outstanding as of March 31, 2024 and 45,005,175 issued and outstanding as of December 31, 2023, respectively	$ 462
Treasury Stock, Common, Shares	467,875
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
Preferred stock, shares outstanding (in shares)						2,000
Preferred Stock, Including Additional Paid in Capital	$ 47,696
Common Stock, Shares, Issued	46,211,430
Treasury Stock, Value	$ 0
Common Stock, Shares, Issued	45,005,175
Common stock, $0.01 par value: 100,000,000 shares authorized; 45,096,392 issued and 45,025,151 outstanding as of March 31, 2024 and 45,005,175 issued and outstanding as of December 31, 2023, respectively	$ 450
Treasury Stock, Common, Shares	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
Preferred stock, shares outstanding (in shares)						2,000
Preferred Stock, Including Additional Paid in Capital	$ 47,603
Common Stock, Shares, Issued	45,005,175
Share-based Payment Arrangement, Decrease for Tax Withholding Obligation	$ 2,161	(2,161)					(2,161)
Shares Issued, Value, Share-based Payment Arrangement, after Forfeiture	$ 5,847	5,846	$ 1				5,847
Shares Issued, Shares, Share-based Payment Arrangement, after Forfeiture			136,777
Share-based Payment Arrangement, Shares Withheld for Tax Withholding Obligation	45,560
APIC, Share-based Payment Arrangement, Increase for Cost Recognition	$ 513	513					513
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders	6,785				6,785
Net income attributable to Green Brick Partners, Inc.	83,301			83,301			83,301
Net Income (Loss) Attributable to Nonredeemable Noncontrolling Interest					$ 5,840
Net Income (Loss), Including Portion Attributable to Nonredeemable Noncontrolling Interest	89,141
Noncontrolling Interest, Change in Redemption Value	(400)	$ (400)					(400)
Dividends, Common Stock, Cash	(719)			$ (719)			(719)
Stock Repurchased During Period, Shares								71,241
Stock Repurchased During Period, Value	(15,351)						$ (15,351)	$ 3,758
Treasury Stock, Value	$ 3,758
Common Stock, Shares, Issued	45,096,392
Common stock, $0.01 par value: 100,000,000 shares authorized; 45,096,392 issued and 45,025,151 outstanding as of March 31, 2024 and 45,005,175 issued and outstanding as of December 31, 2023, respectively	$ 451
Treasury Stock, Common, Shares	71,241
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
Preferred stock, shares outstanding (in shares)	2,000
Preferred Stock, Including Additional Paid in Capital	$ 47,603
Common Stock, Shares, Issued	45,096,392