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EXCEL - IDEA: XBRL DOCUMENT - INFINERA CORPFinancial_Report.xls
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EX-31.2 - CERTIFICATION OF CFO PURSUANT TO RULE 13A-14(A) AND RULE 15D-14(A) - INFINERA CORPd314423dex312.htm
EX-31.1 - CERTIFICATION OF CEO PURSUANT TO RULE 13A-14(A) AND RULE 15D-14(A) - INFINERA CORPd314423dex311.htm
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EX-32.1 - CERTIFICATION OF CEO AND CFO PURSUANT TO 18 U.S.C. SECTION 1350 - INFINERA CORPd314423dex321.htm
v2.4.0.6
Guarantees
3 Months Ended
Mar. 31, 2012
Guarantees [Abstract]  
Guarantees

12. Guarantees

Product Warranties

Upon delivery of products, the Company provides for the estimated cost to repair or replace products or the related components that may be returned under hardware warranties. In general, hardware warranty periods range from one to five years. Hardware warranties provide the purchaser with protection in the event that the product does not perform to product specifications. During the warranty period, the purchaser's sole and exclusive remedy in the event of such defect or failure to perform is limited to the correction of the defect or failure by repair, refurbishment or replacement, at the Company's sole option and expense. The Company estimates its hardware warranty obligations based on the Company's historical experience of known product failure rates, use of materials to repair or replace defective products, and service delivery costs incurred in correcting product failures. In addition, from time to time, specific hardware warranty accruals may be made if unforeseen technical problems arise with specific products. Management periodically assesses the adequacy of the Company's recorded warranty liabilities and adjusts the amounts as necessary.

 

Activity related to product warranty was as follows (in thousands):

 

     Three Months Ended  
         March 31,    
2012
        March 26,    
2011
 

Beginning balance

   $ 12,865      $ 11,422   

Charges to operations

     2,721        1,470   

Utilization

     (1,973     (1,763

Change in estimate(1)

     (627     (969
  

 

 

   

 

 

 

Balance at the end of the period

   $ 12,986      $ 10,160   
  

 

 

   

 

 

 

(1) 

The Company records hardware warranty liabilities based on the latest quality and cost information available as of that date. The favorable changes in estimate shown here are due to continued improvements in overall actual failure rates and the impact of these improvements on the Company's estimate of expected future returns and changes in the estimated cost of replacing failed units using either repaired or new units.