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SEGMENTS, Entity Wide Information (Details) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2016 USD ($) | Sep. 30, 2016 USD ($) | Jun. 30, 2016 USD ($) | Mar. 31, 2016 USD ($) | Dec. 31, 2015 USD ($) | Sep. 30, 2015 USD ($) | Jun. 30, 2015 USD ($) | Mar. 31, 2015 USD ($) | [3] | Dec. 31, 2016 USD ($) Customer | Dec. 31, 2015 USD ($) Customer | Dec. 31, 2014 USD ($) Customer
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net sales to external customers |  |  |  |  |  |  |  |  |  | $ 500,153 | $ 567,080 | [1] | $ 487,076 | [1]
Long-Lived Assets | $ 75,109 |  |  |  | $ 85,135 | [2] |  |  |  | 75,109 | 85,135 | [2] |  |
Net sales to external customers | 118,539 | $ 128,809 | $ 131,622 | $ 121,182 | 135,246 |  | $ 144,161 | $ 145,658 | $ 142,015 | $ 500,153 | $ 567,080 | [1] | $ 487,076 | [1]
Net Sales [Member] | Customer Concentration Risk [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of customers representing sales in excess of ten percent | Customer |  |  |  |  |  |  |  |  |  | 1 | 1 |  | 1 |
Net sales to external customers |  |  |  |  |  |  |  |  |  | $ 59,800 | $ 74,800 |  | $ 76,400 |
Concentration risk percentage |  |  |  |  |  |  |  |  |  | 12.00% | 13.20% |  | 15.70% |
Power Solutions and Protection [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net sales to external customers |  |  |  |  |  |  |  |  |  | $ 172,176 | $ 214,766 |  | $ 159,867 |
Connectivity Solutions [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net sales to external customers |  |  |  |  |  |  |  |  |  | 168,845 | 181,697 |  | 152,954 |
Magnetic Solutions [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net sales to external customers |  |  |  |  |  |  |  |  |  | 159,132 | 170,617 |  | 174,255 |
United States [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net sales to external customers |  |  |  |  |  |  |  |  |  | 256,760 | 304,328 |  | 217,258 |
Long-Lived Assets | 29,740 |  |  |  | 32,327 | [2] |  |  |  | 29,740 | 32,327 | [2] |  |
Macao [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net sales to external customers |  |  |  |  |  |  |  |  |  | 163,971 | 182,248 |  | 195,469 |
People's Republic of China (PRC) [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long-Lived Assets | 32,666 |  |  |  | 37,796 | [2] |  |  |  | 32,666 | 37,796 | [2] |  |
United Kingdom [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net sales to external customers |  |  |  |  |  |  |  |  |  | 21,953 | 27,552 |  | 22,852 |
Long-Lived Assets | 1,419 |  |  |  | 2,016 | [2] |  |  |  | 1,419 | 2,016 | [2] |  |
Slovakia [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net sales to external customers |  |  |  |  |  |  |  |  |  | 17,622 | 2,807 |  | 1,353 |
Long-Lived Assets | 6,574 |  |  |  | 7,758 | [2] |  |  |  | 6,574 | 7,758 | [2] |  |
Germany [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net sales to external customers |  |  |  |  |  |  |  |  |  | 14,104 | 16,314 |  | 18,663 |
Switzerland [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net sales to external customers |  |  |  |  |  |  |  |  |  | 14,048 | 18,050 |  | 15,236 |
Long-Lived Assets | 3,593 |  |  |  | 4,006 | [2] |  |  |  | $ 3,593 | 4,006 | [2] |  |
Asia [Member] | Geographic Concentration Risk [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Concentration risk percentage |  |  |  |  |  |  |  |  |  | 40.00% |  |  |  |
All Other Foreign Countries [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net sales to external customers |  |  |  |  |  |  |  |  |  | $ 11,695 | 15,781 |  | 16,245 |
Long-Lived Assets | $ 1,117 |  |  |  | $ 1,232 | [2] |  |  |  | 1,117 | 1,232 | [2] |  |
Reportable Operating Segments [Member] | North America [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net sales to external customers |  |  |  |  |  |  |  |  |  | 256,760 | 304,328 | [1] | 217,258 | [1]
Net sales to external customers |  |  |  |  |  |  |  |  |  | 268,935 | 329,304 | [1] | 248,007 | [1]
Reportable Operating Segments [Member] | Asia [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net sales to external customers |  |  |  |  |  |  |  |  |  | 168,458 | 188,146 | [1] | 201,338 | [1]
Net sales to external customers |  |  |  |  |  |  |  |  |  | 256,202 | 295,751 | [1] | 275,765 | [1]
Reportable Operating Segments [Member] | Europe [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net sales to external customers |  |  |  |  |  |  |  |  |  | 74,935 | 74,606 | [1] | 68,480 | [1]
Net sales to external customers |  |  |  |  |  |  |  |  |  | $ 86,750 | $ 148,735 | [1] | $ 114,748 | [1]
[1] | (Revised)
[2] | Revised
[3] | Revised from 10-Q disclosures to reflect immaterial measurement period adjustments related to the 2014 Acquisitions. First quarter 10-Q reflected gross profit of $27.1 million, net earnings of $5.6 million, earnings per Class A common share of $0.45 per share and earnings per Class B common share of $0.48 per share.

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