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, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Earnings Per Share [Abstract]
Net income attributable to Green Brick Partners, Inc.	$ 105,358	$ 75,270	$ 188,659	$ 139,450
Preferred Stock Dividends, Income Statement Impact	719	719	1,438	1,438
Net Income (Loss) Available to Common Stockholders, Basic	$ 104,639	$ 74,551	$ 187,221	$ 138,012
Weighted-average number of shares outstanding —basic (in shares)	44,760	45,371	44,826	45,656
Basic net income attributable to Green Brick Partners, Inc. per share (in dollars per share)	$ 2.34	$ 1.64	$ 4.18	$ 3.02
Dilutive effect of stock options and restricted stock awards (in shares)	394	384	451	395
Weighted-average number of shares outstanding —diluted (in shares)	45,154	45,755	45,277	46,051
Diluted net income attributable to Green Brick Partners, Inc. per share (in dollars per share)	$ 2.32	$ 1.63	$ 4.14	$ 3.00