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Segment and Geographic Data (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2012 | Sep. 29, 2012 | Jun. 30, 2012 | Mar. 31, 2012 | Dec. 31, 2011 | Oct. 01, 2011 | Jul. 02, 2011 | Apr. 02, 2011 | Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Number of reporting segments | 5 |  |  |  |  |  |  |  | 5 |  |
Product sales |  |  |  |  |  |  |  |  | $ 2,222,966 | $ 2,587,396 | $ 2,719,311
Royalty revenues |  |  |  |  |  |  |  |  | 7,131 | 6,633 | 5,781
Total revenue | 530,570 | 572,781 | 588,199 | 538,547 | 551,391 | 637,649 | 709,838 | 695,151 | 2,230,097 | 2,594,029 | 2,725,092
Gross Margin | 108,791 | 133,554 | 147,619 | 136,709 | 125,656 | 167,477 | 212,190 | 214,663 | 526,673 | 719,986 | 807,485
Depreciation expense |  |  |  |  |  |  |  |  | 153,801 | 165,022 | 169,724
Interest expense (income) |  |  |  |  |  |  |  |  | 22,604 | 19,277 | 11,036
Capital expenditures |  |  |  |  |  |  |  |  | 150,291 | 168,641 | 145,413
Total Assets | 3,016,277 |  |  |  | 2,993,730 |  |  |  | 3,016,277 | 2,993,730 | 2,966,093
Income (loss) from continuing operations before taxes |  |  |  |  |  |  |  |  | 170,037 | 331,116 | 405,533
Net earnings attributable to Vishay stockholders | 20,975 | 22,280 | 45,671 | 33,812 | 30,952 | 50,487 | 82,095 | 75,287 | 122,738 | 238,821 | 359,106
Diluted earnings per share attributable to Vishay stockholders (in dollars per share) | $ 0.14 | $ 0.15 | $ 0.29 | $ 0.21 | $ 0.19 | $ 0.31 | $ 0.48 | $ 0.43 | $ 0.79 | $ 1.42 | $ 1.89
Operating margin reconciliation [Abstract] |  |  |  |  |  |  |  |  |  |  |
Gain on Sale of Property | 0 | 0 | 12,153 | 0 | 0 | 0 | 0 | 0 | 12,153 | 0 | 0
Executive employment agreement charge | 0 | 0 | 0 | 0 | 0 | 1,873 | 3,889 | 0 | 0 | (5,762) | 0
Operating Income | 21,514 | 44,459 | 72,883 | 50,345 | 33,565 | 75,333 | 115,505 | 122,198 | 189,201 | 346,601 | 417,938
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net revenues | 530,570 | 572,781 | 588,199 | 538,547 | 551,391 | 637,649 | 709,838 | 695,151 | 2,230,097 | 2,594,029 | 2,725,092
Property and equipment, net | 914,552 |  |  |  | 907,905 |  |  |  | 914,552 | 907,905 |
Segment Reporting Information, Description of Products and Services |  |  |  |  |  |  |  |  | The Company evaluates business segment performance on operating income, exclusive of certain items ("segment operating income"). Only dedicated, direct selling, general, and administrative expenses of the segments are included in the calculation of segment operating income. The Company's calculation of segment operating income excludes such selling, general, and administrative costs as global operations, sales and marketing, information systems, finance and administration groups, as well as restructuring and severance costs, asset write-downs, goodwill and indefinite-lived intangible asset impairments, inventory write-downs, gains or losses on purchase commitments, and other items. Management believes that evaluating segment performance excluding such items is meaningful because it provides insight with respect to intrinsic operating results of the Company. These items represent reconciling items between segment operating income and consolidated operating income. Business segment assets are the owned or allocated assets used by each business. |  |
Segment Reporting, Change in Measurement Methods |  |  |  |  |  |  |  |  | Following the completion of the spin-off of VPG in the third fiscal quarter of 2010, Vishay operates, and its chief operating decision maker makes strategic and operating decisions with regards to assessing performance and allocating resources based on, five reporting segments: MOSFETs, Diodes, Optoelectronic Components, Resistors & Inductors, and Capacitors. |  |
Discussion on inclusion of VPG's Share in Results of Operations and Cash Flows prior to spin-off |  |  |  |  |  |  |  |  | Until July 6, 2010, VPG was part of Vishay and its assets, liabilities, results of operations, and cash flows are included in the amounts reported in these consolidated financial statements for periods prior to the completion of the spin-off. |  |
United States [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenue |  |  |  |  |  |  |  |  | 568,849 | 363,847 | 345,267
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net revenues |  |  |  |  |  |  |  |  | 568,849 | 363,847 | 345,267
Property and equipment, net | 133,812 |  |  |  | 136,159 |  |  |  | 133,812 | 136,159 |
Germany [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenue |  |  |  |  |  |  |  |  | 775,204 | 801,539 | 726,235
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net revenues |  |  |  |  |  |  |  |  | 775,204 | 801,539 | 726,235
Property and equipment, net | 121,957 |  |  |  | 125,905 |  |  |  | 121,957 | 125,905 |
Czech Republic [Member] |  |  |  |  |  |  |  |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |  |  |  |  |  |  |  |
Property and equipment, net | 51,620 |  |  |  | 53,126 |  |  |  | 51,620 | 53,126 |
Other Europe [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenue |  |  |  |  |  |  |  |  | 61,236 | 175,639 | 217,099
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net revenues |  |  |  |  |  |  |  |  | 61,236 | 175,639 | 217,099
Property and equipment, net | 98,534 |  |  |  | 97,212 |  |  |  | 98,534 | 97,212 |
Israel [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenue |  |  |  |  |  |  |  |  | 14,708 | 219,037 | 292,025
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net revenues |  |  |  |  |  |  |  |  | 14,708 | 219,037 | 292,025
Property and equipment, net | 140,994 |  |  |  | 125,885 |  |  |  | 140,994 | 125,885 |
Asia [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenue |  |  |  |  |  |  |  |  | 810,100 | 1,033,967 | 1,144,466
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net revenues |  |  |  |  |  |  |  |  | 810,100 | 1,033,967 | 1,144,466
People's Republic of China [Member] |  |  |  |  |  |  |  |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |  |  |  |  |  |  |  |
Property and equipment, net | 169,395 |  |  |  | 178,877 |  |  |  | 169,395 | 178,877 |
Republic of China (Taiwan) [Member] |  |  |  |  |  |  |  |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |  |  |  |  |  |  |  |
Property and equipment, net | 116,315 |  |  |  | 117,450 |  |  |  | 116,315 | 117,450 |
Other Asia [Member] |  |  |  |  |  |  |  |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |  |  |  |  |  |  |  |
Property and equipment, net | 80,304 |  |  |  | 71,677 |  |  |  | 80,304 | 71,677 |
Other Geographic Area [Member] |  |  |  |  |  |  |  |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |  |  |  |  |  |  |  |
Property and equipment, net | 1,621 |  |  |  | 1,614 |  |  |  | 1,621 | 1,614 |
MOSFETS Segment [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Product sales |  |  |  |  |  |  |  |  | 433,436 | 537,783 | 626,498
Royalty revenues |  |  |  |  |  |  |  |  | 246 | 197 | 200
Total revenue |  |  |  |  |  |  |  |  | 433,682 | 537,980 | 626,698
Gross Margin |  |  |  |  |  |  |  |  | 56,694 | 125,498 | 189,209
Depreciation expense |  |  |  |  |  |  |  |  | 49,124 | 53,808 | 51,865
Interest expense (income) |  |  |  |  |  |  |  |  | 0 | 12 | 0
Capital expenditures |  |  |  |  |  |  |  |  | 49,201 | 61,520 | 55,457
Total Assets | 625,597 |  |  |  | 646,660 |  |  |  | 625,597 | 646,660 | 745,641
Operating margin reconciliation [Abstract] |  |  |  |  |  |  |  |  |  |  |
Operating Income |  |  |  |  |  |  |  |  | 17,198 | 85,336 | 152,794
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net revenues |  |  |  |  |  |  |  |  | 433,682 | 537,980 | 626,698
Diodes Segment [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Product sales |  |  |  |  |  |  |  |  | 496,744 | 607,493 | 596,354
Royalty revenues |  |  |  |  |  |  |  |  | 0 | 0 | 0
Total revenue |  |  |  |  |  |  |  |  | 496,744 | 607,493 | 596,354
Gross Margin |  |  |  |  |  |  |  |  | 99,116 | 143,876 | 138,308
Depreciation expense |  |  |  |  |  |  |  |  | 36,335 | 39,577 | 39,035
Interest expense (income) |  |  |  |  |  |  |  |  | 64 | 0 | 0
Capital expenditures |  |  |  |  |  |  |  |  | 30,025 | 39,444 | 30,879
Total Assets | 670,811 |  |  |  | 682,017 |  |  |  | 670,811 | 682,017 | 685,490
Operating margin reconciliation [Abstract] |  |  |  |  |  |  |  |  |  |  |
Operating Income |  |  |  |  |  |  |  |  | 75,733 | 118,111 | 115,168
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net revenues |  |  |  |  |  |  |  |  | 496,744 | 607,493 | 596,354
Optoelectronic Components Segment [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Product sales |  |  |  |  |  |  |  |  | 209,141 | 229,814 | 226,402
Royalty revenues |  |  |  |  |  |  |  |  | 53 | 72 | 96
Total revenue |  |  |  |  |  |  |  |  | 209,194 | 229,886 | 226,498
Gross Margin |  |  |  |  |  |  |  |  | 67,943 | 74,772 | 75,804
Depreciation expense |  |  |  |  |  |  |  |  | 11,917 | 12,384 | 12,282
Interest expense (income) |  |  |  |  |  |  |  |  | 140 | 0 | 0
Capital expenditures |  |  |  |  |  |  |  |  | 16,759 | 15,442 | 13,066
Total Assets | 199,385 |  |  |  | 163,486 |  |  |  | 199,385 | 163,486 | 163,584
Operating margin reconciliation [Abstract] |  |  |  |  |  |  |  |  |  |  |
Operating Income |  |  |  |  |  |  |  |  | 54,632 | 60,492 | 64,088
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net revenues |  |  |  |  |  |  |  |  | 209,194 | 229,886 | 226,498
Resistors And Inductors Segment [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Product sales |  |  |  |  |  |  |  |  | 635,488 | 634,490 | 622,819
Royalty revenues |  |  |  |  |  |  |  |  | 6,832 | 6,364 | 5,485
Total revenue |  |  |  |  |  |  |  |  | 642,320 | 640,854 | 628,304
Gross Margin |  |  |  |  |  |  |  |  | 204,137 | 213,997 | 222,785
Depreciation expense |  |  |  |  |  |  |  |  | 31,921 | 32,039 | 30,142
Interest expense (income) |  |  |  |  |  |  |  |  | 543 | 223 | 933
Capital expenditures |  |  |  |  |  |  |  |  | 35,878 | 28,751 | 27,874
Total Assets | 760,257 |  |  |  | 609,556 |  |  |  | 760,257 | 609,556 | 602,466
Operating margin reconciliation [Abstract] |  |  |  |  |  |  |  |  |  |  |
Operating Income |  |  |  |  |  |  |  |  | 172,129 | 185,327 | 195,730
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net revenues |  |  |  |  |  |  |  |  | 642,320 | 640,854 | 628,304
Capacitors Segment [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Product sales |  |  |  |  |  |  |  |  | 448,157 | 577,816 | 546,149
Royalty revenues |  |  |  |  |  |  |  |  | 0 | 0 | 0
Total revenue |  |  |  |  |  |  |  |  | 448,157 | 577,816 | 546,149
Gross Margin |  |  |  |  |  |  |  |  | 98,783 | 161,843 | 144,349
Depreciation expense |  |  |  |  |  |  |  |  | 23,354 | 25,979 | 31,551
Interest expense (income) |  |  |  |  |  |  |  |  | 52 | 223 | 762
Capital expenditures |  |  |  |  |  |  |  |  | 15,531 | 19,676 | 17,132
Total Assets | 587,586 |  |  |  | 672,049 |  |  |  | 587,586 | 672,049 | 652,742
Operating margin reconciliation [Abstract] |  |  |  |  |  |  |  |  |  |  |
Operating Income |  |  |  |  |  |  |  |  | 76,858 | 136,901 | 121,714
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net revenues |  |  |  |  |  |  |  |  | 448,157 | 577,816 | 546,149
Vishay Precision Group Segment [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Product sales |  |  |  |  |  |  |  |  | 0 | 0 | 101,089
Royalty revenues |  |  |  |  |  |  |  |  | 0 | 0 | 0
Total revenue |  |  |  |  |  |  |  |  | 0 | 0 | 101,089
Gross Margin |  |  |  |  |  |  |  |  | 0 | 0 | 37,030
Depreciation expense |  |  |  |  |  |  |  |  | 0 | 0 | 3,391
Interest expense (income) |  |  |  |  |  |  |  |  | 0 | 0 | 33
Capital expenditures |  |  |  |  |  |  |  |  | 0 | 0 | 918
Total Assets | 0 |  |  |  | 0 |  |  |  | 0 | 0 | 0
Income (loss) from continuing operations before taxes |  |  |  |  |  |  |  |  |  |  | 9,716
Net earnings attributable to Vishay stockholders |  |  |  |  |  |  |  |  |  |  | 5,811
Diluted earnings per share attributable to Vishay stockholders (in dollars per share) |  |  |  |  |  |  |  |  |  |  | $ 0.03
Operating margin reconciliation [Abstract] |  |  |  |  |  |  |  |  |  |  |
Operating Income |  |  |  |  |  |  |  |  | 0 | 0 | 18,949
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net revenues |  |  |  |  |  |  |  |  | 0 | 0 | 101,089
Corporate Other [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Product sales |  |  |  |  |  |  |  |  | 0 | 0 | 0
Royalty revenues |  |  |  |  |  |  |  |  | 0 | 0 | 0
Total revenue |  |  |  |  |  |  |  |  | 0 | 0 | 0
Gross Margin |  |  |  |  |  |  |  |  | 0 | 0 | 0
Depreciation expense |  |  |  |  |  |  |  |  | 1,150 | 1,235 | 1,458
Interest expense (income) |  |  |  |  |  |  |  |  | 21,805 | 18,819 | 9,308
Capital expenditures |  |  |  |  |  |  |  |  | 2,897 | 3,808 | 87
Total Assets | 172,641 |  |  |  | 219,962 |  |  |  | 172,641 | 219,962 | 116,170
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net revenues |  |  |  |  |  |  |  |  | 0 | 0 | 0
Unallocated Selling, General, and Administrative Expenses [Member] |  |  |  |  |  |  |  |  |  |  |
Operating margin reconciliation [Abstract] |  |  |  |  |  |  |  |  |  |  |
Operating Income |  |  |  |  |  |  |  |  | $ (219,502) | $ (233,804) | $ (250,505)

X
- Definition Total expenditures for additions to long-lived assets other than financial instruments, long-term customer relationships of a financial institution, mortgage and other servicing rights, deferred policy acquisition costs, and deferred tax assets of the reportable segment; if the amount: (a) is included in the determination of segment assets reviewed by the chief operating decision maker or (b) is otherwise regularly provided to the chief operating decision maker, even if not included in the determination of segment assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 131 -Paragraph 28 -Subparagraph b -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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