Impairment, Severance And Other Costs (Narrative) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Impairment, Severance And Other Charges [Line Items]
Impairment charges		$ 35,091	$ 13,507
Impairment losses through equity in earnings of unconsolidated entities	1,001	18,739	(74,447)
Austin Condominium Project [Member]
Impairment, Severance And Other Charges [Line Items]
Impairment charges		34,691
Citrus Park Land Parcel [Member]
Impairment, Severance And Other Charges [Line Items]
Impairment charges		400
Impairment Loss [Member] | Land LLC [Member]
Impairment, Severance And Other Charges [Line Items]
Impairment charges			9,658
Impairment Loss [Member] | Atlanta Condominium Project [Member]
Impairment, Severance And Other Charges [Line Items]
Impairment losses through equity in earnings of unconsolidated entities	5,492	5,492	74,733
Severance Costs [Member]
Impairment, Severance And Other Charges [Line Items]
Impairment charges			4,764
Hurricane Recovery [Member]
Impairment, Severance And Other Charges [Line Items]
Impairment charges			$ 915
Minimum [Member]
Impairment, Severance And Other Charges [Line Items]
Severance charges payment term (in years)	2
Maximum [Member]
Impairment, Severance And Other Charges [Line Items]
Severance charges payment term (in years)	5