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, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Earnings Per Share [Abstract]
Net income attributable to Green Brick Partners, Inc.	$ 75,270	$ 101,256	$ 139,450	$ 162,833
Preferred Stock Dividends, Income Statement Impact	719	719	1,438	1,438
Net Income (Loss) Available to Common Stockholders, Basic	$ 74,551	$ 100,537	$ 138,012	$ 161,395
Weighted-average number of shares outstanding —basic (in shares)	45,371	48,046	45,656	49,309
Basic net income attributable to Green Brick Partners, Inc. per share (in dollars per share)	$ 1.64	$ 2.09	$ 3.02	$ 3.27
Dilutive effect of stock options and restricted stock awards (in shares)	384	338	395	330
Weighted-average number of shares outstanding —diluted (in shares)	45,755	48,384	46,051	49,639
Diluted net income attributable to Green Brick Partners, Inc. per share (in dollars per share)	$ 1.63	$ 2.08	$ 3.00	$ 3.25