Condensed Consolidated Statements of Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Total revenues	$ 373,806	$ 232,833	$ 608,285	$ 446,100
Cost of Goods and Services Sold	272,830	178,938	448,320	343,236
Total gross profit	100,976	53,895	159,965	102,864
Selling, general and administrative expenses	33,985	25,672	63,473	52,541
Equity in income of unconsolidated entities	4,593	5,174	8,484	7,739
Other income, net	2,393	2,788	4,263	879
Income before income taxes	73,977	36,185	109,239	58,941
Income tax expense	15,694	1,348	23,195	7,388
Net income	58,283	34,837	86,044	51,553
Less: Net income attributable to noncontrolling interests	6,020	1,190	7,812	1,989
Net income attributable to Green Brick Partners, Inc.	$ 52,263	$ 33,647	$ 78,232	$ 49,564
Net income attributable to Green Brick Partners, Inc. per common share:
Basic (in dollars per share)	$ 1.03	$ 0.67	$ 1.54	$ 0.98
Diluted (in dollars per share)	$ 1.02	$ 0.66	$ 1.53	$ 0.98
Weighted average common shares used in the calculation of net income attributable to Green Brick Partners, Inc. per common share:
Basic (in shares)	50,701	50,583	50,667	50,519
Diluted (in shares)	51,064	50,692	51,029	50,669
Residential Real Estate [Member]
Total revenues	$ 333,500	$ 228,667	$ 550,736	$ 419,854
Cost of Goods and Services Sold	244,165	175,723	406,237	322,910
Real Estate, Other [Member]
Total revenues	40,306	4,166	57,549	26,246
Cost of Goods and Services Sold	$ 28,665	$ 3,215	$ 42,083	$ 20,326