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Other Comprehensive Income (Loss) (Tables) | 12 Months Ended
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Dec. 31, 2012
Other Comprehensive Income (Loss) [Abstract] |
Components of other comprehensive income (loss) pretax and after-tax |
|  | Year Ended December 30, 2010 |
|  | Pretax |  |  | Tax |  |  | After-tax |
Net unrealized gains on available-for-sale investments arising during the periods |  | $ | 4,983 |  |  | $ | (1,925 | ) |  | $ | 3,058 |
Less: realized gains on investments |  |  | 5,744 |  |  |  | (2,216 | ) |  |  | 3,528 |
Less: reclassification of unrealized losses relating to the reclassification of investment portfolio to trading from available-for-sale |  |  | (656 | ) |  |  | 253 |  |  |  | (403 | )
Less: realized foreign currency gains on investments |  |  | 809 |  |  |  | (312 | ) |  |  | 497 |
Change in net unrealized gains (losses) on available-for-sale investments |  |  | (914 | ) |  |  | 350 |  |  |  | (564 | )
Other comprehensive income (loss) |  | $ | (914 | ) |  | $ | 350 |  |  | $ | (564 | )

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- Definition Tabular disclosure of components of comprehensive income (loss) including, but not limited to: (a) foreign currency translation adjustments; (b) gains (losses) on foreign currency transactions that are designated as, and are effective as, economic hedges of a net investment in a foreign entity; (c) gains (losses) on intercompany foreign currency transactions that are of a long-term-investment nature, when the entities to the transaction are consolidated, combined, or accounted for by the equity method in the reporting enterprise's financial statements; (d) change in the market value of a futures contract that qualifies as a hedge of an asset reported at fair value; (e) unrealized holding gains (losses) on available-for-sale securities and that resulting from transfers of debt securities from the held-to-maturity category to the available-for-sale category; (f) a net loss recognized as an additional pension liability not yet recognized as net periodic pension cost; and (g) the net gain (loss) and net prior service cost or credit for pension plans and other postretirement benefit plans. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=20435746&loc=d3e526-108580 + Details
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