Investment in Unconsolidated Entities (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Schedule of Equity Method Investments [Line Items]
Investments in unconsolidated entities	$ 81,800		$ 81,800		$ 74,224
Equity in income of unconsolidated entities	5,699	$ 8,523	9,920	$ 14,210
Total revenues	456,289	525,144	908,350	918,760
Equity Method Investment, Nonconsolidated Investee or Group of Investees
Schedule of Equity Method Investments [Line Items]
Total revenues	74,747	85,394	133,070	156,030
Costs and Expenses	63,420	68,275	113,146	127,472
BHome Mortgage, LLC
Schedule of Equity Method Investments [Line Items]
Investments in unconsolidated entities	985		985		1,147
Equity in income of unconsolidated entities	641	356	1,334	910
GB Challenger, LLC
Schedule of Equity Method Investments [Line Items]
Investments in unconsolidated entities	51,888		51,888		49,897
Equity in income of unconsolidated entities	4,487	7,019	7,512	11,086
GBTM Sendera, LLC
Schedule of Equity Method Investments [Line Items]
Investments in unconsolidated entities	19,299		19,299		14,319
EJB River Holdings, LLC
Schedule of Equity Method Investments [Line Items]
Investments in unconsolidated entities	9,628		9,628		8,554
Equity in income of unconsolidated entities	571	646	1,074	1,384
Green Brick Mortgage, LLC
Schedule of Equity Method Investments [Line Items]
Investments in unconsolidated entities	0		0		$ 307
Equity in income of unconsolidated entities		502		830
Equity Method Investment, Nonconsolidated Investee or Group of Investees
Schedule of Equity Method Investments [Line Items]
Equity in income of unconsolidated entities	$ 5,699	$ 8,523	$ 9,920	$ 14,210