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Other Assets (Tables) | 12 Months Ended
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Dec. 31, 2017
Other Assets [Abstract] |
Other Assets | Other assets consist of the following (U.S. dollars in thousands):
|  | December 31, |
|  | 2016 |  |  | 2017 |
Deferred taxes |  | $ | 35,752 |  |  | $ | 33,785 |
Deposits for noncancelable operating leases |  |  | 38,858 |  |  |  | 43,375 |
Cash surrender value for life insurance policies |  |  | 32,286 |  |  |  | 37,737 |
Other |  |  | 29,573 |  |  |  | 49,998 |
|  | $ | 136,469 |  |  | $ | 164,895 |

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- Definition Tabular disclosure of noncurrent assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.17) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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