| OPERATING AND REPORTING SEGMENTS - Schedule of Segment Information (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Sep. 30, 2016 | Sep. 30, 2015 | Sep. 30, 2016 | Sep. 30, 2015 | ||||||
| Homebuilding revenue: | |||||||||
| Revenue | $ 752,857 | $ 669,956 | $ 2,148,519 | $ 1,786,469 | |||||
| Homebuilding segment operating income: | |||||||||
| Corporate and unallocated costs | (33,258) | (28,774) | (91,774) | (86,074) | |||||
| Earnings/(loss) from other unconsolidated entities, net | 440 | (123) | 856 | (415) | |||||
| Interest expense | (167) | (4,187) | (5,127) | (11,962) | |||||
| Other income/(expense), net | 1,435 | (3,996) | 3,263 | (3,445) | |||||
| Earnings before income taxes | 53,802 | 46,668 | 141,723 | 113,379 | |||||
| Operating Segments [Member] | Homebuilding [Member] | |||||||||
| Homebuilding revenue: | |||||||||
| Revenue | [1] | 752,857 | 669,956 | 2,148,519 | 1,786,469 | ||||
| Homebuilding segment operating income: | |||||||||
| Operating Income | 56,201 | 57,720 | 151,618 | 143,909 | |||||
| Operating Segments [Member] | Financial Services [Member] | |||||||||
| Homebuilding segment operating income: | |||||||||
| Operating Income | 5,956 | 5,601 | 15,765 | 13,517 | |||||
| Operating Segments [Member] | Reportable Subsegments [Member] | Homebuilding [Member] | West [Member] | |||||||||
| Homebuilding revenue: | |||||||||
| Revenue | [1] | 330,805 | 270,202 | 924,494 | 696,854 | ||||
| Homebuilding segment operating income: | |||||||||
| Operating Income | 27,829 | 24,347 | 71,387 | 53,800 | |||||
| Operating Segments [Member] | Reportable Subsegments [Member] | Homebuilding [Member] | Central [Member] | |||||||||
| Homebuilding revenue: | |||||||||
| Revenue | [1] | 200,446 | 191,132 | 571,036 | 524,633 | ||||
| Homebuilding segment operating income: | |||||||||
| Operating Income | 18,635 | 19,524 | 52,313 | 54,682 | |||||
| Operating Segments [Member] | Reportable Subsegments [Member] | Homebuilding [Member] | East [Member] | |||||||||
| Homebuilding revenue: | |||||||||
| Revenue | [1] | 221,606 | 208,622 | 652,989 | 564,982 | ||||
| Homebuilding segment operating income: | |||||||||
| Operating Income | 9,737 | 13,849 | 27,918 | 35,427 | |||||
| Corporate and Unallocated [Member] | |||||||||
| Homebuilding segment operating income: | |||||||||
| Corporate and unallocated costs | [2] | (10,063) | (8,347) | (24,652) | (28,225) | ||||
| Segment Reconciling Items [Member] | |||||||||
| Homebuilding segment operating income: | |||||||||
| Earnings/(loss) from other unconsolidated entities, net | 440 | (123) | 856 | (415) | |||||
| Interest expense | (167) | (4,187) | (5,127) | (11,962) | |||||
| Other income/(expense), net | $ 1,435 | $ (3,996) | $ 3,263 | $ (3,445) | |||||
| 
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