FAIR VALUE DISCLOSURES - Summary of Carrying Value and Fair Value of Financial Instruments (Detail) - USD ($) $ in Thousands	Mar. 31, 2026	Dec. 31, 2025
Senior Notes 5.75% Due 2028 | Senior Notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Stated interest rate	5.75%
Senior Notes 5.125% Due 2030 | Senior Notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Stated interest rate	5.125%
Senior Notes 5.75% Due 2032 | Senior Notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Stated interest rate	5.75%
2 | Carrying Value | Fair Value, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage loans held for sale	$ 139,001	$ 132,512
2 | Carrying Value | Fair Value, Recurring | MBSs
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liabilities		(1,858)
Derivative assets	5,840
2 | Carrying Value | Mortgage warehouse facilities borrowings | Fair Value, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt	90,855	82,605
2 | Carrying Value | Loans payable and other borrowings | Fair Value, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt	787,061	745,169
2 | Carrying Value | Senior Notes 5.75% Due 2028 | Senior Notes | Fair Value, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt	448,869	448,711
2 | Carrying Value | Senior Notes 5.125% Due 2030 | Senior Notes | Fair Value, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt	497,252	497,094
2 | Carrying Value | Senior Notes 5.75% Due 2032 | Senior Notes | Fair Value, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt	517,744	517,528
2 | Carrying Value | Corporate bonds | Fair Value, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Corporate bonds	34,511	27,159
2 | Estimated Fair Value | Fair Value, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage loans held for sale	139,001	132,512
2 | Estimated Fair Value | Fair Value, Recurring | MBSs
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liabilities		(1,858)
Derivative assets	5,840
2 | Estimated Fair Value | Mortgage warehouse facilities borrowings | Fair Value, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt	90,855	82,605
2 | Estimated Fair Value | Loans payable and other borrowings | Fair Value, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt	787,061	745,169
2 | Estimated Fair Value | Senior Notes 5.75% Due 2028 | Senior Notes | Fair Value, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt	451,494	457,956
2 | Estimated Fair Value | Senior Notes 5.125% Due 2030 | Senior Notes | Fair Value, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt	493,780	503,070
2 | Estimated Fair Value | Senior Notes 5.75% Due 2032 | Senior Notes | Fair Value, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt	524,806	539,963
2 | Estimated Fair Value | Corporate bonds | Fair Value, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Corporate bonds	34,511	27,159
3 | Carrying Value | Fair Value, Recurring | IRLCs
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liabilities	(23,541)	(12,715)
3 | Estimated Fair Value | Fair Value, Recurring | IRLCs
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liabilities	(23,541)	(12,715)
1 | Carrying Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	5,686	4,932
1 | Carrying Value | U.S. Treasury securities | Fair Value, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Corporate bonds	29,144	27,174
1 | Estimated Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	5,686	4,932
1 | Estimated Fair Value | U.S. Treasury securities | Fair Value, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Corporate bonds	$ 29,144	$ 27,174