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Changes in Shareholders' Equity (Narrative) (Details) $ in Thousands | 12 Months Ended
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Dec. 31, 2017 USD ($)
ASC 606 [Member] |
Increase decrease in retained earnings | $ 5,600
Increase decrease in non controlling interest | 300
ASU 2016-16 [Member] |
Increase decrease in retained earnings | $ 500

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- Definition Net Increase or Decrease in balance of noncontrolling interest in the subsidiary during the reporting period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 16 -URI http://asc.fasb.org/extlink&oid=108774443&loc=SL4568740-111683 + Details
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