Investment in Unconsolidated Entities (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Schedule of Equity Method Investments [Line Items]
Equity in income of unconsolidated entities	$ 2,592	$ 4,221
Investments in unconsolidated entities	34,701		$ 84,654
Equity Method Investment, Realized Gain (Loss) on Disposal	10,700
GB Challenger, LLC
Schedule of Equity Method Investments [Line Items]
Equity in income of unconsolidated entities	929	3,025
Investments in unconsolidated entities	0		52,666
GBTM Sendera, LLC
Schedule of Equity Method Investments [Line Items]
Investments in unconsolidated entities	20,773		19,866
EJB River Holdings, LLC
Schedule of Equity Method Investments [Line Items]
Equity in income of unconsolidated entities	770	503
Investments in unconsolidated entities	11,637		10,867
BHome Mortgage, LLC
Schedule of Equity Method Investments [Line Items]
Equity in income of unconsolidated entities	893	693
Investments in unconsolidated entities	1,503		1,255
Green Brick Mortgage, LLC
Schedule of Equity Method Investments [Line Items]
Investments in unconsolidated entities			$ 0
Equity Method Investment Nonconsolidated Investees
Schedule of Equity Method Investments [Line Items]
Equity in income of unconsolidated entities	2,592	$ 4,221
Rainwater Crossing Single-Family, LLC
Schedule of Equity Method Investments [Line Items]
Investments in unconsolidated entities	$ 788