FAIR VALUE DISCLOSURES - Narrative (Detail) - USD ($) $ in Thousands	Sep. 30, 2019	Aug. 19, 2019	Jun. 20, 2019	Jun. 05, 2019	Dec. 31, 2018	Mar. 05, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets, net	$ 2,903				$ 1,838
Senior Notes | 5.25% Senior Notes due 2021
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Stated interest rate ( as a percent )	5.25%		5.25%
Senior Notes | 6.625% Senior Notes due 2022
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Stated interest rate ( as a percent )	6.625%	6.625%
Senior Notes | 5.875% Senior Notes due 2023
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Stated interest rate ( as a percent )	5.875%
Senior Notes | 5.625% Senior Notes due 2024
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Stated interest rate ( as a percent )	5.625%					5.625%
Senior Notes | 5.875% Senior Notes due 2027
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Stated interest rate ( as a percent )	5.875%			5.875%
Level 2 | Carrying Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage loans held for sale	$ 108,550				181,897
Derivative assets, net	2,903				1,099
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 | 364-Day Credit Agreement
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt	200,000				200,000
Level 2 | Carrying Value | Mortgage warehouse borrowings
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt	56,051				130,353
Level 2 | Carrying Value | Loans payable and other borrowings
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt	225,203				225,497
Level 2 | Carrying Value | Senior Notes | 5.25% Senior Notes due 2021
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt	0				547,304
Level 2 | Carrying Value | Senior Notes | 6.625% Senior Notes due 2022
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt	0				411,656
Level 2 | Carrying Value | Senior Notes | 5.875% Senior Notes due 2023
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt	347,991				347,566
Level 2 | Carrying Value | Senior Notes | 5.625% Senior Notes due 2024
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt	347,622				347,219
Level 2 | Carrying Value | Senior Notes | 5.875% Senior Notes due 2027
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt	493,869				0
Level 2 | Carrying Value | Senior Notes | 5.75% Senior Notes due 2028
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt	444,694				0
Level 2 | Estimated Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage loans held for sale	108,550				181,897
Derivative assets, net	2,903				1,099
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 | 364-Day Credit Agreement
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt	200,000				200,000
Level 2 | Estimated Fair Value | Mortgage warehouse borrowings
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt	56,051				130,353
Level 2 | Estimated Fair Value | Loans payable and other borrowings
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt	225,203				225,497
Level 2 | Estimated Fair Value | Senior Notes | 5.25% Senior Notes due 2021
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt	0				544,500
Level 2 | Estimated Fair Value | Senior Notes | 6.625% Senior Notes due 2022
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt	0				400,520
Level 2 | Estimated Fair Value | Senior Notes | 5.875% Senior Notes due 2023
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt	372,750				337,750
Level 2 | Estimated Fair Value | Senior Notes | 5.625% Senior Notes due 2024
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt	370,580				332,500
Level 2 | Estimated Fair Value | Senior Notes | 5.875% Senior Notes due 2027
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt	543,150				0
Level 2 | Estimated Fair Value | Senior Notes | 5.75% Senior Notes due 2028
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt	$ 489,375				$ 0