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, 2024	Mar. 31, 2023
Earnings Per Share [Abstract]
Net income attributable to Green Brick Partners, Inc.	$ 83,301	$ 64,180
Weighted-average number of shares outstanding —basic (in shares)	44,942	45,945
Basic net income attributable to Green Brick Partners, Inc. per share (in dollars per share)	$ 1.84	$ 1.38
Dilutive effect of stock options and restricted stock awards (in shares)	488	406
Weighted-average number of shares outstanding —diluted (in shares)	45,430	46,351
Diluted net income attributable to Green Brick Partners, Inc. per share (in dollars per share)	$ 1.82	$ 1.37