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SEGMENTS (Summary of Assets by Segment and Reconciliation of Segment Assets to Total Assets) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Reconciliation of total segment assets to total assets    
Assets $ 6,367,382 $ 5,721,582
Master Planned Communities    
Additional information    
Increase (decrease) in assets 39,900  
Operating Assets    
Additional information    
Increase (decrease) in assets 258,800  
Strategic Developments    
Additional information    
Increase (decrease) in assets 33,200  
Operating Segments    
Reconciliation of total segment assets to total assets    
Assets 5,779,048 5,526,943
Operating Segments | Master Planned Communities    
Reconciliation of total segment assets to total assets    
Assets 1,982,639 2,022,524
Operating Segments | Operating Assets    
Reconciliation of total segment assets to total assets    
Assets 2,624,505 2,365,724
Operating Segments | Strategic Developments    
Reconciliation of total segment assets to total assets    
Assets 1,171,904 1,138,695
Corporate    
Reconciliation of total segment assets to total assets    
Assets 588,334 $ 194,639
Additional information    
Increase (decrease) in assets $ 393,700