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Basis Of Presentation And Significant Accounting Policies (Schedule Of The Company's Interests In Land Option Agreements) (Details) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2014
Dec. 31, 2013
Land under option agreement [Line Items]    
Deposits and pre-acquisition costs $ 98,786 $ 91,034
Remaining Purchase Price 1,593,349 1,390,286
Land, not owned, under option agreements 22,200 24,024
Consolidated and Unconsolidated VIEs [Member]
   
Land under option agreement [Line Items]    
Deposits and pre-acquisition costs 51,055 40,486
Remaining Purchase Price 791,765 661,158
Land, not owned, under option agreements 5,264 8,167
Other Land Option Agreements Member
   
Land under option agreement [Line Items]    
Deposits and pre-acquisition costs 47,731 50,548
Remaining Purchase Price 801,584 729,128
Land, not owned, under option agreements $ 16,936 $ 15,857