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Goodwill (Tables) | 12 Months Ended
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Dec. 31, 2017
Goodwill [Abstract] |
Goodwill | The following table presents goodwill allocated to the Company's reportable segments for the periods ended December 30, 2017 and December 31, 2016 (U.S. dollars in thousands):
|  | December 31, 2016(1) |  |  | December 31, 2017 |
Mainland China |  | $ | 32,179 |  |  | $ | 32,179 |
South Korea |  |  | 29,261 |  |  |  | 29,261 |
Americas |  |  | 9,449 |  |  |  | 9,449 |
South Asia/Pacific |  |  | 18,537 |  |  |  | 18,537 |
Japan |  |  | 16,019 |  |  |  | 16,019 |
Hong Kong/Taiwan |  |  | 6,634 |  |  |  | 6,634 |
EMEA |  |  | 2,875 |  |  |  | 2,875 |
Total |  | $ | 114,954 |  |  | $ | 114,954 |
| (1) | Goodwill was recast to reflect current period presentation by geographic region at December 31, 2016.

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- Definition Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13854-109267 + Details
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