Net Income Attributable to Green Brick Partners, Inc. Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Earnings Per Share [Abstract]
Net income attributable to Green Brick Partners, Inc.	$ 75,059	$ 83,301
Weighted-average number of shares outstanding —basic (in shares)	44,440	44,942
Basic net income attributable to Green Brick Partners, Inc. per share (in dollars per share)	$ 1.67	$ 1.84
Dilutive effect of stock options and restricted stock awards (in shares)	68	488
Weighted-average number of shares outstanding —diluted (in shares)	44,508	45,430
Diluted net income attributable to Green Brick Partners, Inc. per share (in dollars per share)	$ 1.67	$ 1.82