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Commitments And Contingencies (Insurance-Related Expenses) (Details) (USD $)
In Thousands
3 Months Ended9 Months Ended
Sep. 30, 2011
Sep. 30, 2010
Sep. 30, 2011
Sep. 30, 2010
Commitments And Contingencies [Abstract]    
Balance, beginning of period$ 790,597$ 577,691$ 813,841$ 566,693
Reserves provided15,551282,53647,558318,167
Liabilities assumed with Centex merger 2,514 2,514
Payments(12,510)(11,663)(67,761)(38,810)
Balance, end of period$ 793,638$ 848,564$ 793,638$ 848,564