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Commitments and Contingencies Commitments and Contingencies (Tables)
 9 Months Ended
Sep. 30, 2018
Warranty Accrual Rollforward [Abstract]  
Schedule of Product Warranty Liability [Table Text Block]
A summary of warranty activity for the three and nine months ended September 30, 2018 and 2017 is as follows:
 
Three Months Ended September 30,
 
Nine Months Ended September 30,
(In thousands)
2018
 
2017
 
2018
 
2017
Warranty reserves, beginning of period
$
23,279

 
$
30,303

 
$
26,133

 
$
27,732

Warranty expense on homes delivered during the period
3,353

 
2,882

 
9,195

 
8,094

Changes in estimates for pre-existing warranties
417

 
92

 
882

 
1,154

Charges related to stucco-related claims (a)
—

 
—

 
—

 
8,500

Settlements made during the period
(4,508
)
 
(6,209
)
 
(13,669
)
 
(18,412
)
Warranty reserves, end of period
$
22,541

 
$
27,068

 
$
22,541

 
$
27,068


(a)
Estimated stucco-related repair costs, as described below, have been included in warranty accruals.