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WARRANTY OBLIGATIONS (Tables)
 9 Months Ended
Sep. 30, 2015
Product Warranties Disclosures [Abstract]  
Summary of Warranty Activities
The Company’s warranty activities during the three and nine months ended September 30, 2015 and 2014 were as follows (in thousands):
 
Three Months Ended
September 30,
 
Nine Months Ended
September 30,
 
2015
 
2014
 
2015
 
2014
Warranty obligations, beginning of period
$
33,763

 
$
32,969

 
$
33,940

 
$
30,432

Accruals for warranties issued during period
1,400

 
1,361

 
3,707

 
3,112

Changes in estimates
498

 
1,146

 
736

 
5,506

Settlements
(2,615
)
 
(3,041
)
 
(5,480
)
 
(6,666
)
Increase due to accretion expense
272

 
47

 
643

 
87

Other
(512
)
 
(175
)
 
(740
)
 
(164
)
Warranty obligations, end of period
$
32,806

 
$
32,307

 
$
32,806

 
$
32,307

Less current portion


 


 
$
(6,612
)
 
$
(7,749
)
Noncurrent


 


 
$
26,194

 
$
24,558