Earnings Per Share (Tables) - shares
shares in Thousands

12 Months Ended

Dec. 31, 2018

Dec. 31, 2017

Dec. 31, 2016

Earnings Per Share [Abstract]

Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount

8

0

144

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

The computation of basic and diluted net income attributable to Green Brick Partners, Inc. per share is as follows (in thousands, except per share amounts):

	Years Ended December 31,
	2018		2017		2016
Net income attributable to Green Brick Partners, Inc.	$	51,623	$	14,970	$	23,756
Weighted-average number of shares outstanding — basic	50,652		49,597		48,879
Basic net income attributable to Green Brick Partners, Inc. per share	$	1.02	$	0.30	$	0.49
Weighted-average number of shares outstanding — basic	50,652		49,597		48,879
Dilutive effect of stock options and restricted stock awards	99		86		7
Weighted average number of shares outstanding — diluted	50,751		49,683		48,886
Diluted net income attributable to Green Brick Partners, Inc. per share	$	1.02	$	0.30	$	0.49

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]

The following shares that could potentially dilute earnings per share in the future are not included in the determination of diluted net income attributable to Green Brick Partners, Inc. per common share (in thousands):

	Years Ended December 31,
	2018	2017	2016
Antidilutive options to purchase common stock and restricted stock awards	8	—	144