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Restructuring and Related Activities (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Apr. 01, 2017 | Apr. 02, 2016 | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Restructuring Reserve [Roll Forward] |  |  |  |  |  |
Restructuring and severance costs | $ 1,469 | $ 6,475 |  |  |  |
MOSFETs Enhanced Competitiveness Program [Member] |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |
Restructuring Reserve, Current | 5,221 |  |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |  |  |
Restructuring and severance costs | 420 | 3,915 | $ 9,744 | $ 5,367 | $ 6,025 | $ 2,328
Cash paid | (1,431) |  | (15,686) | (426) | (856) | (267)
Foreign currency translation | 0 |  | 2 | 1 |  |
Balance at end of period | 5,221 |  | 6,232 | 12,172 | 7,230 | $ 2,061
Balance at beginning of period | $ 6,232 | 12,172 | 12,172 | 7,230 | $ 2,061 |
Term of restructuring program | 2 years |  |  |  |  |
Other Exit Costs | $ 64 |  |  |  |  |
MOSFETs Enhanced Competitiveness Program [Member] | Minimum [Member] |  |  |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |  |  |
Expected Restructuring Costs | 24,000 |  |  |  |  |
MOSFETs Enhanced Competitiveness Program [Member] | Maximum [Member] |  |  |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |  |  |
Expected Restructuring Costs | 27,000 |  |  |  |  |
Voluntary Separation/Retirement Program [Member] |  |  |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |  |  |
Restructuring cost incurred to date | 13,373 |  |  |  |  |
Global Cost Reduction Program [Member] |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |
Restructuring Reserve, Current | 3,076 |  |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |  |  |
Restructuring and severance costs | 1,049 | 2,560 | 9,918 | 13,753 |  |
Cash paid | (3,557) |  | (16,237) | (986) |  |
Foreign currency translation | 64 |  | (34) | (150) |  |
Balance at end of period | 3,820 |  | 6,264 | $ 12,617 |  |
Balance at beginning of period | $ 6,264 | 12,617 | $ 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 | 0 | 448 |  |  |  |
Global Cost Reduction Program [Member] | Optoelectronic Components Segment [Member] |  |  |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |  |  |
Restructuring and severance costs | 0 | 178 |  |  |  |
Global Cost Reduction Program [Member] | Resistors And Inductors Segment [Member] |  |  |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |  |  |
Restructuring and severance costs | 851 | 1,018 |  |  |  |
Global Cost Reduction Program [Member] | Capacitors Segment [Member] |  |  |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |  |  |
Restructuring and severance costs | 161 | 334 |  |  |  |
Global Cost Reduction Program [Member] | Unallocated Amount to Segment [Member] |  |  |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |  |  |
Restructuring and severance costs | $ 37 | $ 582 |  |  |  |
MOSFETs Enhanced Competitiveness Program Extension [Member] |  |  |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |  |  |
Term of restructuring program | 15 months |  |  |  |  |
MOSFETs Enhanced Competitiveness Program Extension [Member] | Minimum [Member] |  |  |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |  |  |
Expected Restructuring Costs | $ 4,000 |  |  |  |  |
MOSFETs Enhanced Competitiveness Program Extension [Member] | Maximum [Member] |  |  |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |  |  |
Expected Restructuring Costs | $ 8,000 |  |  |  |  |

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