REPORTING SEGMENTS - Summary of Assets by Segment (Detail) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Segment Reporting, Asset Reconciling Item [Line Items]
Real estate inventory and land deposits	$ 3,316,966	$ 3,009,004
Investments in unconsolidated entities	179,249	192,364
Other assets	835,478	1,124,525
Total assets	4,331,693	4,325,893
Operating Segments | East
Segment Reporting, Asset Reconciling Item [Line Items]
Real estate inventory and land deposits	1,281,339	1,150,918
Investments in unconsolidated entities	29,759	29,316
Other assets	55,296	85,753
Total assets	1,366,394	1,265,987
Operating Segments | Central
Segment Reporting, Asset Reconciling Item [Line Items]
Real estate inventory and land deposits	982,257	818,431
Investments in unconsolidated entities	35,401	32,874
Other assets	117,282	124,593
Total assets	1,134,940	975,898
Operating Segments | West
Segment Reporting, Asset Reconciling Item [Line Items]
Real estate inventory and land deposits	1,053,370	1,039,655
Investments in unconsolidated entities	110,074	126,559
Other assets	32,569	53,492
Total assets	1,196,013	1,219,706
Operating Segments | Financial Services
Segment Reporting, Asset Reconciling Item [Line Items]
Real estate inventory and land deposits	0	0
Investments in unconsolidated entities	4,015	3,615
Other assets	146,286	225,641
Total assets	150,301	229,256
Corporate and Unallocated
Segment Reporting, Asset Reconciling Item [Line Items]
Real estate inventory and land deposits	0	0
Investments in unconsolidated entities	0	0
Other assets	484,045	635,046
Total assets	$ 484,045	$ 635,046