REPORTING SEGMENTS - Assets from Segment (Detail) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Segment Reporting, Asset Reconciling Item [Line Items]
Real estate inventory and land deposits	$ 3,294,650	$ 3,054,452
Investments in unconsolidated entities	184,817	157,909
Other assets	837,861	1,008,565
Total assets	4,317,328	4,220,926
Operating Segments | East
Segment Reporting, Asset Reconciling Item [Line Items]
Real estate inventory and land deposits	1,236,731	1,110,340
Investments in unconsolidated entities	27,593	25,923
Other assets	58,004	80,320
Total assets	1,322,328	1,216,583
Operating Segments | Central
Segment Reporting, Asset Reconciling Item [Line Items]
Real estate inventory and land deposits	906,024	829,354
Investments in unconsolidated entities	32,695	30,146
Other assets	126,162	139,383
Total assets	1,064,881	998,883
Operating Segments | West
Segment Reporting, Asset Reconciling Item [Line Items]
Real estate inventory and land deposits	1,151,895	1,114,758
Investments in unconsolidated entities	120,914	98,625
Other assets	51,277	43,304
Total assets	1,324,086	1,256,687
Operating Segments | Mortgage Operations
Segment Reporting, Asset Reconciling Item [Line Items]
Real estate inventory and land deposits	0	0
Investments in unconsolidated entities	3,615	3,215
Other assets	153,728	269,131
Total assets	157,343	272,346
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	448,690	476,427
Total assets	$ 448,690	$ 476,427