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Commitments and Contingencies Legal Liabilities (Details) - USD ($) | 3 Months Ended | 9 Months Ended |  |  |
--- | --- | --- | --- | --- | ---
Sep. 30, 2017 | Sep. 30, 2016 | Sep. 30, 2017 | Sep. 30, 2016 | Jun. 30, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Other Liabilities Disclosure [Abstract] |  |  |  |  |  |  |
Product Liability Accrual, Component Amount |  |  |  |  |  | $ 19,400,000 | $ 500,000
Charges related to stucco-related claims | $ 0 | $ 14,500,000 | $ 8,500,000 | $ 19,409,000 |  |  |
Estimated Repair Costs for Affected Homes | 11,300,000 |  | 11,300,000 |  |  |  |
Amount Reserved for Legal Expenses | 400,000 |  | 400,000 |  |  | $ 300,000 |
General Liability Insurance Deductible | 10,000,000 |  | 10,000,000 |  | $ 7,500,000 |  |
Workers Compensation | $ 250,000 |  | $ 250,000 |  | $ 500,000 |  |

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- Definition Recorded amount of the accrual for a material component of a product liability contingency. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 5.Y.Q2) -URI http://asc.fasb.org/extlink&oid=27011672&loc=d3e149879-122751 + Details
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- Definition Amount of increase (decrease) in the standard and extended product warranty liability. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 8 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=68068213&loc=d3e12565-110249 + Details
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