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Restructuring and Related Activities (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Apr. 02, 2016 | Apr. 04, 2015 | Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Restructuring Reserve [Roll Forward] |  |  |  |  |
Restructuring and severance costs | $ 6,475 | $ 1,410 |  |  |
2013 Restructuring Programs [Member] |  |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |  |
Expected Restructuring Costs | 34,000 |  |  |  |
Global Cost Reduction Program [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring Reserve, Current | 8,864 |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |  |
Restructuring and severance costs | 2,560 | 0 | $ 13,753 |  |
Cash paid | (4,072) |  | (986) |  |
Foreign currency translation | 299 |  | (150) |  |
Balance at end of period | 11,404 |  | 12,617 |  |
Balance at beginning of period | $ 12,617 |  |  |  |
Term of restructuring program | 27 months |  |  |  |
Expected Restructuring Costs | $ 30,000 |  |  |  |
Global Cost Reduction Program [Member] | Diodes Segment [Member] |  |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |  |
Restructuring and severance costs | 448 |  |  |  |
Global Cost Reduction Program [Member] | Optoelectronic Components Segment [Member] |  |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |  |
Restructuring and severance costs | 178 |  |  |  |
Global Cost Reduction Program [Member] | Resistors And Inductors Segment [Member] |  |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |  |
Restructuring and severance costs | 1,018 |  |  |  |
Global Cost Reduction Program [Member] | Capacitors Segment [Member] |  |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |  |
Restructuring and severance costs | 334 |  |  |  |
Global Cost Reduction Program [Member] | Unallocated Amount to Segment [Member] |  |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |  |
Restructuring and severance costs | 582 |  |  |  |
MOSFETs Enhanced Competitiveness Program [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring Reserve, Current | 10,253 |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |  |
Restructuring and severance costs | 3,915 | 1,353 | 5,367 | $ 6,025 | $ 2,328
Cash paid | (5,840) |  | (426) | (856) | (267)
Foreign currency translation | 6 |  | 1 |  |
Balance at end of period | 10,253 |  | 12,172 | 7,230 | 2,061
Balance at beginning of period | $ 12,172 | 7,230 | 7,230 | 2,061 |
Term of restructuring program | 2 years |  |  |  |
Expected Restructuring Costs | $ 18,000 |  |  |  |
Other Exit Costs | 3,925 |  |  |  |
Voluntary Separation/Retirement Program [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring Reserve, Current | 1,123 |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |  |
Restructuring and severance costs | 0 | 57 | 95 | 12,792 | 486
Cash paid | (256) |  | (3,166) | (8,054) | (98)
Foreign currency translation | 34 |  | (258) | (455) | 3
Balance at end of period | 1,123 |  | 1,345 | 4,674 | $ 391
Balance at beginning of period | 1,345 | 4,674 | 4,674 | 391 |
Modules Product Transfer [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring Reserve, Current | 682 |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |  |
Restructuring and severance costs | 0 | 0 |  | 2,080 |
Cash paid | (5) |  | (718) | (464) |
Foreign currency translation | 30 |  | (120) | (121) |
Balance at end of period | 682 |  | 657 | $ 1,495 |
Balance at beginning of period | $ 657 | $ 1,495 | $ 1,495 |  |

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