Summary of Significant Accounting Policies (Schedule Of The Company's Interests In Land Option Agreements) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Land under option agreement [Line Items]
Deposits and Pre-acquisition Costs	$ 91,034	$ 70,116
Remaining Purchase Price	1,390,286	923,392
Land, Not Owned, Under Option Agreements	24,024	31,066
Consolidated and Unconsolidated VIEs [Member]
Land under option agreement [Line Items]
Deposits and Pre-acquisition Costs	40,486	29,294
Remaining Purchase Price	661,158	369,085
Land, Not Owned, Under Option Agreements	8,167	8,590
Other Land Option Agreements Member
Land under option agreement [Line Items]
Deposits and Pre-acquisition Costs	50,548	40,822
Remaining Purchase Price	729,128	554,307
Land, Not Owned, Under Option Agreements	$ 15,857	$ 22,476