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Other Assets (Tables)
 12 Months Ended
Dec. 31, 2012
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]  
Components of Other Assets
Other assets consist of the following (U.S. dollars in thousands):

 
 
December 31,
 
 
 
2011
 
 
2012
 
 
 
 
 
 
Deferred taxes                                                                                      
 
$
29,661
 
 
$
26,302
 
Deposits for noncancelable operating leases
 
 
15,559
 
 
 
15,189
 
Deposit for customs assessment (Note 20)                                                                                        
 
 
50,719
 
 
 
46,653
 
Cash surrender value for life insurance policies
 
 
14,925
 
 
 
18,605
 
Other                                                                                      
 
 
4,721
 
 
 
12,004
 
 
 
$
115,585
 
 
$
118,753