Net Income Attributable to Green Brick Partners, Inc. Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Earnings Per Share [Abstract]
Net income attributable to Green Brick Partners, Inc.	$ 81,948	$ 105,358	$ 157,007	$ 188,659
Preferred Stock Dividends, Income Statement Impact	719	719	1,438	1,438
Net Income (Loss) Available to Common Stockholders, Basic	$ 81,229	$ 104,639	$ 155,569	$ 187,221
Weighted-average number of shares outstanding —basic (in shares)	43,770	44,760	44,103	44,826
Basic net income attributable to Green Brick Partners, Inc. per share (in dollars per share)	$ 1.86	$ 2.34	$ 3.53	$ 4.18
Dilutive effect of stock options and restricted stock awards (in shares)	54	394	85	451
Weighted-average number of shares outstanding —diluted (in shares)	43,824	45,154	44,188	45,277
Diluted net income attributable to Green Brick Partners, Inc. per share (in dollars per share)	$ 1.85	$ 2.32	$ 3.52	$ 4.14