XML 34 R30.htm IDEA: XBRL DOCUMENT v2.4.0.8
Guarantees (Tables)
 9 Months Ended
Sep. 27, 2014
Guarantees [Abstract]  
Activity Related to Product Warranty
Activity related to product warranty was as follows (in thousands): 
 
Three Months Ended
 
Nine Months Ended
 
September 27, 2014
 
September 28, 2013
 
September 27, 2014
 
September 28, 2013
Beginning balance
$
27,948

 
$
19,701

 
$
22,908

 
$
16,482

Charges to operations
5,820

 
5,220

 
18,181

 
16,646

Utilization
(2,312
)
 
(2,645
)
 
(7,924
)
 
(6,783
)
Change in estimate (1)
(3,650
)
 
886

 
(5,359
)
 
(3,183
)
Balance at the end of the period
$
27,806

 
$
23,162

 
$
27,806

 
$
23,162

 _________________
(1) 
The Company records hardware warranty liabilities based on the latest quality and cost information available as of that date. The changes in estimate shown here are due to changes in overall actual failure rates and the resulting impact of these changes on the Company’s estimate of expected future returns, as well as changes in the estimated cost and the mix of new versus used units related to replacement of failed units.