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REVENUE, Disaggregation of Revenue (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2018 | Dec. 31, 2017
Disaggregation of Revenue [Abstract] |  |
Net sales | $ 548,184 | $ 491,611
Direct to Customer [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Net sales | 398,659 |
Through Distribution [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Net sales | 149,525 |
Connectivity Solutions [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Net sales | 186,724 | 170,337
Magnetic Solutions [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Net sales | 185,407 | 161,011
Power Solutions and Protection [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Net sales | 176,053 | 160,263
North America [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Net sales | 271,691 | 245,834
North America [Member] | Direct to Customer [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Net sales | 175,290 |
North America [Member] | Through Distribution [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Net sales | 96,401 |
North America [Member] | Connectivity Solutions [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Net sales | 135,454 |
North America [Member] | Magnetic Solutions [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Net sales | 37,805 |
North America [Member] | Power Solutions and Protection [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Net sales | 98,432 |
Asia [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Net sales | 187,203 | 167,680
Asia [Member] | Direct to Customer [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Net sales | 161,114 |
Asia [Member] | Through Distribution [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Net sales | 26,089 |
Asia [Member] | Connectivity Solutions [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Net sales | 17,140 |
Asia [Member] | Magnetic Solutions [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Net sales | 137,998 |
Asia [Member] | Power Solutions and Protection [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Net sales | 32,065 |
Europe [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Net sales | 89,290 | $ 78,097
Europe [Member] | Direct to Customer [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Net sales | 62,255 |
Europe [Member] | Through Distribution [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Net sales | 27,035 |
Europe [Member] | Connectivity Solutions [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Net sales | 34,130 |
Europe [Member] | Magnetic Solutions [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Net sales | 9,604 |
Europe [Member] | Power Solutions and Protection [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Net sales | $ 45,556 |

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