FAIR VALUE DISCLOSURES - Carrying Value and Fair Value (Detail) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016	Mar. 05, 2014	Apr. 16, 2013
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	$ 2,037	$ 2,291
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	$ 107,665	233,184
Derivative assets	2,037	2,291
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	61,292	198,564
Level 2 | Carrying Value | Loans payable and other borrowings
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt	161,798	150,485
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	545,808	544,911
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	346,857	346,431
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	346,546	346,142
Level 2 | Estimated Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage loans held for sale	107,665	233,184
Derivative assets	2,037	2,291
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	61,292	198,564
Level 2 | Estimated Fair Value | Loans payable and other borrowings
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt	161,798	150,485
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	564,465	563,750
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	371,000	355,250
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	364,000	353,500
Level 3 | Carrying Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration liability	5,358	17,200
Level 3 | Estimated Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration liability	$ 5,358	$ 17,200