FAIR VALUE DISCLOSURES (Detail) - USD ($)	Jun. 30, 2018	Dec. 31, 2017	Mar. 05, 2014	Apr. 16, 2013
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	$ 2,888,000	$ 1,584,000
Senior Notes | 5.25% Senior Notes due 2021, unsecured
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Stated interest rate of senior notes	5.25%			5.25%
Senior Notes | 5.875% Senior Notes due 2023, unsecured
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Stated interest rate of senior notes	5.875%
Senior Notes | 5.625% Senior Notes due 2024, unsecured
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Stated interest rate of senior notes	5.625%		5.625%
Level 2 | Carrying Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage loans held for sale	$ 99,606,000	187,038,000
Derivative assets	2,451,000	1,352,000
Level 2 | Carrying Value | Revolving Credit Facility
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt	0	0
Level 2 | Carrying Value | Mortgage warehouse borrowings
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt	49,818,000	118,822,000
Level 2 | Carrying Value | Loans payable and other borrowings
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt	136,508,000	139,453,000
Level 2 | Carrying Value | Senior Notes | 5.25% Senior Notes due 2021, unsecured
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt	546,706,000	546,108,000
Level 2 | Carrying Value | Senior Notes | 5.875% Senior Notes due 2023, unsecured
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt	347,282,000	346,998,000
Level 2 | Carrying Value | Senior Notes | 5.625% Senior Notes due 2024, unsecured
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt	346,950,000	346,681,000
Level 2 | Estimated Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage loans held for sale	99,606,000	187,038,000
Derivative assets	2,451,000	1,352,000
Level 2 | Estimated Fair Value | Revolving Credit Facility
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt	0	0
Level 2 | Estimated Fair Value | Mortgage warehouse borrowings
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt	49,818,000	118,822,000
Level 2 | Estimated Fair Value | Loans payable and other borrowings
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt	136,508,000	139,453,000
Level 2 | Estimated Fair Value | Senior Notes | 5.25% Senior Notes due 2021, unsecured
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt	550,000,000	561,000,000
Level 2 | Estimated Fair Value | Senior Notes | 5.875% Senior Notes due 2023, unsecured
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt	348,250,000	369,705,000
Level 2 | Estimated Fair Value | Senior Notes | 5.625% Senior Notes due 2024, unsecured
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt	342,335,000	366,205,000
Level 3 | Carrying Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration liability	0	5,328,000
Level 3 | Estimated Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration liability	$ 0	$ 5,328,000