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Commitments and Contingencies Commitments and Contingencies (Tables)
 12 Months Ended
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.