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Commitments and Contingencies Commitments and Contingencies (Tables) | 12 Months Ended
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Dec. 31, 2017
Warranty Accrual Rollforward [Abstract] |
Schedule of Product Warranty Liability [Table Text Block] | A summary of warranty activity for the years ended December 31, 2017, 2016 and 2015 is as follows:
| Year Ended December 31,
(In thousands) | 2017 |  | 2016 |  | 2015
Warranty reserves, beginning of period | $ | 27,732 |  |  | $ | 14,282 |  |  | $ | 12,671 |
Warranty expense on homes delivered during the period | 11,677 |  |  | 10,452 |  |  | 8,812 |
Changes in estimates for pre-existing warranties | 2,614 |  |  | 3,304 |  |  | 5,160 |
Charges related to stucco-related claims (a) | 8,500 |  |  | 19,409 |  |  | — |
Settlements made during the period | (24,390 | ) |  | (19,715 | ) |  | (12,361 | )
Warranty reserves, end of period | $ | 26,133 |  |  | $ | 27,732 |  |  | $ | 14,282 |
(a) | Estimated stucco-related claim costs, as described below, have been included in warranty accruals.

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- Definition Warranty Accrual Rollforward [Abstract] + References No definition available. + Details
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- Definition Tabular disclosure of the changes in the guarantor's aggregate product warranty liability, including the beginning balance of the aggregate product warranty liability, the aggregate reductions in that liability for payments made (in cash or in kind) under the warranty, the aggregate changes in the liability for accruals related to product warranties issued during the reporting period, the aggregate changes in the liability for accruals related to preexisting warranties (including adjustments related to changes in estimates), and the ending balance of the aggregate 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 -URI http://asc.fasb.org/extlink&oid=68068213&loc=d3e12565-110249 + Details
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