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Goodwill (Narrative) (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2014 | Jun. 30, 2015 | Jun. 30, 2014
Goodwill impairment charge (benefit) | $ 29,300 |  | $ 29,300
Goodwill, translation adjustments |  |  | 2,962
PST [Member] |  |  |
Goodwill impairment charge (benefit) |  |  | 29,300
Goodwill impairment loss attributable to noncontrolling interest | $ 6,436 |  |
Goodwill, translation adjustments |  |  | 2,985
Electronics [Member] |  |  |
Goodwill, translation adjustments |  | $ (75) | $ (23)

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