Consolidated Statements of Income - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Total revenues	$ 976,021	$ 791,660	$ 623,647
Total cost of revenues	741,417	622,578	469,445
Total gross profit	234,604	169,082	154,202
Selling, general and administrative expenses	(112,134)	(97,775)	(80,039)
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability	(368)	(4,906)	(1,693)
Income (Loss) from Equity Method Investments	16,654	9,809	7,259
Other income, net	4,057	8,119	1,942
Income before income taxes	142,813	84,329	81,671
Income tax expense	25,016	20,027	17,136
Net income	117,797	64,302	64,535
Less: Net income attributable to noncontrolling interests	4,104	5,646	12,912
Net income attributable to Green Brick Partners, Inc.	$ 113,693	$ 58,656	$ 51,623
Net income attributable to Green Brick Partners, Inc. per common share:
Earnings Per Share, Basic	$ 2.25	$ 1.16	$ 1.02
Earnings Per Share, Diluted	$ 2.24	$ 1.16	$ 1.02
Weighted average common shares used in the calculation of net income attributable to Green Brick Partners, Inc. per common share:
Weighted Average Number of Shares Outstanding, Basic	50,568	50,530	50,652
Weighted Average Number of Shares Outstanding, Diluted	50,795	50,636	50,751
Residential Real Estate [Member]
Total revenues	$ 930,176	$ 759,830	$ 578,893
Total cost of revenues	705,866	597,884	433,279
Real Estate, Other [Member]
Total revenues	45,845	31,830	44,754
Total cost of revenues	$ 35,551	$ 24,694	$ 36,166