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Basis Of Presentation And Significant Accounting Policies (Other Expense (Income), Net) (Details) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended 12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Sep. 30, 2011
Jun. 30, 2011
Sep. 30, 2010
Jun. 30, 2010
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Other expense (income), net [Line Items]                  
Write Off Of Deposits And Pre Acquisition Costs             $ 2,278 $ 10,002 $ 5,594
Loss on debt retirements 32,100 2,100   3,500     32,071 5,638 38,920
Intangible assets amortization expense             13,100 13,100 13,100
Goodwill impairments     240,500   654,900 1,400 0 240,541 656,298
Miscellaneous expense (income), net             11,543 13,921 95
Other expense (income), net             66,298 293,102 742,385
Homebuilding [Member]
                  
Other expense (income), net [Line Items]                  
Lease exit and related costs             $ 7,306 [1] $ 9,900 [1] $ 28,378 [1]
[1] Excludes lease exit costs classified within Financial Services expenses of $0.5 million, $0.1 million, and $2.9 million in 2012, 2011, and 2010, respectively.