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Commitments And Contingencies (Narrative) (Details) (USD $) | 3 Months Ended | 9 Months Ended | 24 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
Sep. 30, 2012 | Sep. 30, 2012 | Sep. 30, 2011 | Dec. 31, 2007 | Jun. 30, 2012 | Dec. 31, 2011 | Jun. 30, 2011 | Dec. 31, 2010
Commitments and Contingencies Disclosure [Abstract] |  |  |  |  |  |  |  |
Total Mortgage Loans Originated |  |  |  | $ 39,500,000,000 |  |  |  |
Percentage of loan origination repurchase requests in which Company is able to cure or refute the claim |  | 60.00% |  |  |  |  |  |
Actual Loss Severities Percentage on Mortgage Repurchase Requests |  | 50.00% |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |
Maximum product warranty in years |  | 10 |  |  |  |  |  |
Accrued liabilities for outstanding community development district obligations | 35,700,000 | 35,700,000 |  |  |  | 38,400,000 |  |
Aggregate Principal Balance of Community Development District Obligations Repurchased | 0 | 0 | 26,600,000 |  |  |  |  |
Discount on repurchases of community development district obligations |  |  | 5,200,000 |  |  |  |  |
Letters of Credit Outstanding, Amount | 190,700,000 | 190,700,000 |  |  |  | 235,900,000 |  |
Surety Bonds Outstanding | 1,100,000,000 | 1,100,000,000 |  |  |  | 1,200,000,000 |  |
Number of self-insurance claims managed at any one time | 1,000 | 1,000 |  |  |  |  |  |
Self-insurance liabilities | 723,826,000 | 723,826,000 | 756,400,000 |  | 733,042,000 | 739,029,000 | 759,714,000 | 787,918,000
Incurred but not reported percentage of liability reserves | 79.00% | 79.00% |  |  |  |  |  |
Residential mortgage backed securities known [Member] |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |
Residential mortgage-backed securities principal sold in previous period | 162,000,000 | 162,000,000 |  |  |  |  |  |
Residential mortgage backed securities other [Member] |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |
Residential mortgage-backed securities principal sold in previous period | $ 116,000,000 | $ 116,000,000 |  |  |  |  |  |

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- Definition Percentage of loan origination repurchase requests in which Company is able to cure or refute the claim + References No definition available. + Details
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- Definition Principal amount of mortgage loans Company sold in a residential mortgage backed securities transaction that is currently associated with a lawsuit in which the bank the Company sold the loans to has been named a defendant. + References No definition available. + Details
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