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Commitments And Contingencies (Narrative) (Details) (USD $) | 3 Months Ended | 24 Months Ended |  |
--- | --- | --- | --- | ---
Mar. 31, 2012 | Mar. 31, 2011 | Dec. 31, 2007 | Dec. 31, 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] |  |  |  |  |
Accrued liabilities for outstanding community development district obligations | 37,400,000 |  |  | 38,400,000 |
Aggregate Principal Balance of Community Development District Obligations Repurchased | 0 | 27,500,000 |  |  |
Discount on repurchases of community development district obligations |  | 5,300,000 |  |  |
Letters of Credit Outstanding, Amount | 219,300,000 |  |  | 235,900,000 |
Surety Bonds Outstanding | 1,200,000,000 |  |  | 1,200,000,000 |
Maximum product warranty in years | 10 |  |  |  |
Self-insurance liabilities | 740,024,000 | 774,752,000 |  | 741,383,000 | 785,562,000
Incurred but not reported percentage of liability reserves | 78.00% | 78.00% |  |  |
Residential mortgage backed securities known [Member] |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |
Residential mortgage-backed securities principal sold in previous period | 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 |  |  |  |

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- Definition Discount On Repurchase Of Special Assessment Bond + References No definition available. + Details
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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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- Definition Total amount of new mortgage loans on real estate during the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 948 -SubTopic 310 -Section S99 -Paragraph 1 -Subparagraph (SX 210.12-29.6) -URI http://asc.fasb.org/extlink&oid=6589523&loc=d3e617274-123014 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph c -Subparagraph Schedule IV -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 29 -Article 12 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 10 -Section S99 -Paragraph 6 -Subparagraph (SX 210.5-04.(c) Schedule IV) -URI http://asc.fasb.org/extlink&oid=6882300&loc=d3e5864-122674 + Details
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- Definition Carrying amount (including both current and noncurrent portions) of accrued known and estimated losses incurred as of the balance sheet date for which no insurance coverage exists, and for which a claim has been made or is probable of being asserted, typically arising from workmen's compensation-type of incidents and personal injury to nonemployees from accidents on the entity's property. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.24) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Including the current and noncurrent portions, carrying value as of the balance sheet date of a type of municipal bond typically used to fund a development project. Also called special assessment limited liability bond, special district bond, special purpose bond, special tax bond and community development obligation. Interest owed to lenders is paid by taxes levied on the community benefiting from the particular bond-funded project. For example, if a bond of this sort was issued to pay for sidewalks to be repaved in a certain community, an additional tax would be levied on homeowners in the area benefiting from this project. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 13, 16 -Article 9 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.16) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 5 -Section 02 -Subsection 20, 22 + Details
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