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Significant Accounting Policies (Schedule Of Warranty Liability) (Details) (USD $)
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Movement in Standard Product Warranty Accrual [Roll Forward]    
Balance, at January 1 $ 189,713,000 $ 176,831,000
Warranties issued during the year 75,782,000 81,952,000
Reduction due to warranties forfeited or claimed during the year (86,418,000) [1] (69,070,000) [1]
Balance, at December 31 179,077,000 189,713,000
Cost Of Revenues
   
Standard Product Warranty [Line Items]    
Decrease in warranty reserve $ (16,000,000) [1]  
[1] In 2013 the Company recognized in CORS, income of approximately $16 million as a result of the elimination of a reserve for warranty obligation that was originally recorded in connection with an acquisition of a company in 2010. This warranty obligation, which related to a project delivered to a foreign customer, reached its statute of limitations in the foreign customer's country.