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Accumulated Other Comprehensive Income (Loss) (Tables) | 12 Months Ended
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Dec. 31, 2012
Accumulated Other Comprehensive Income (Loss) [Abstract] |
Summary of components of other comprehensive income | The cumulative balance of each component of other comprehensive income (loss) and the income tax effects allocated to each component are as follows:
|  | Beginning Balance |  |  | Before-Tax Amount |  |  | Tax Effect |  |  | Net-of-Tax Amount |  |  | VPG Spin-off |  |  | Ending Balance |
December 31, 2010 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Pension and other post-retirement actuarial items |  | $ | (105,910 | ) |  | $ | (30,213 | ) |  | $ | 4,494 |  |  | $ | (25,719 | ) |  | $ | 1,079 |  |  | $ | (130,550 | )
Reclassification adjustment for recognition of actuarial items |  |  |  |  |  |  | 10,498 |  |  |  | 62 |  |  |  | 10,560 |  |  |  | - |  |  |  | 10,560 |
Currency translation adjustment |  |  | 208,341 |  |  |  | (41,930 | ) |  |  | - |  |  |  | (41,930 | ) |  |  | 12,924 |  |  |  | 179,335 |
Unrealized gain (loss) on available-for-sale securities |  |  | 544 |  |  |  | 927 |  |  |  | (325 | ) |  |  | 602 |  |  |  | - |  |  |  | 1,146 |
|  | $ | 102,975 |  |  | $ | (60,718 | ) |  | $ | 4,231 |  |  | $ | (56,487 | ) |  | $ | 14,003 |  |  | $ | 60,491 |
December 31, 2011 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Pension and other post-retirement actuarial items |  | $ | (119,990 | ) |  | $ | (54,053 | ) |  | $ | 16,975 |  |  | $ | (37,078 | ) |  | $ | - |  |  | $ | (157,068 | )
Reclassification adjustment for recognition of actuarial items |  |  |  |  |  |  | 12,192 |  |  |  | (4,321 | ) |  |  | 7,871 |  |  |  | - |  |  |  | 7,871 |
Currency translation adjustment |  |  | 179,335 |  |  |  | (26,441 | ) |  |  | - |  |  |  | (26,441 | ) |  |  | - |  |  |  | 152,894 |
Unrealized gain (loss) on available-for-sale securities |  |  | 1,146 |  |  |  | (1,639 | ) |  |  | 574 |  |  |  | (1,065 | ) |  |  | - |  |  |  | 81 |
|  | $ | 60,491 |  |  | $ | (69,941 | ) |  | $ | 13,228 |  |  | $ | (56,713 | ) |  | $ | - |  |  | $ | 3,778 |
December 31, 2012 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Pension and other post-retirement actuarial items |  | $ | (149,197 | ) |  | $ | (57,072 | ) |  | $ | 16,626 |  |  | $ | (40,446 | ) |  | $ | - |  |  | $ | (189,643 | )
Reclassification adjustment for recognition of actuarial items |  |  |  |  |  |  | 16,059 |  |  |  | (5,372 | ) |  |  | 10,687 |  |  |  | - |  |  |  | 10,687 |
Currency translation adjustment |  |  | 152,894 |  |  |  | 14,567 |  |  |  | - |  |  |  | 14,567 |  |  |  | - |  |  |  | 167,461 |
Unrealized gain (loss) on available-for-sale securities |  |  | 81 |  |  |  | 1,834 |  |  |  | (642 | ) |  |  | 1,192 |  |  |  | - |  |  |  | 1,273 |
|  | $ | 3,778 |  |  | $ | (24,612 | ) |  | $ | 10,612 |  |  | $ | (14,000 | ) |  | $ | - |  |  | $ | (10,222 | )

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- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=20435746&loc=SL7669686-108580 + Details
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