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Capital Stock (Details) (USD $)
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1 Months Ended | ||||
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Nov. 30, 2011
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Dec. 31, 2011
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Nov. 15, 2011
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Dec. 31, 2010
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Mar. 31, 2010
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| Accumulated Other Comprehensive Income | |||||
| Foreign currency translation | 21,066,000 | 23,010,000 | |||
| Unrealized gain on marketable debt securities | 2,103,000 | 4,794,000 | |||
| Other | (1,107,000) | (936,000) | |||
| Total accumulated other comprehensive income | 22,062,000 | 26,868,000 | |||
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3 7/8 % Convertible Senior Notes due 2011 upon maturity
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| Capital Stock | |||||
| Interest rate (as a percent) | 3.875% | 3.875% | 3.875% | 3.875% | 3.875% |
| Aggregate shares of common stock issued for the conversion value in excess of the principal amount | 943,714 | ||||
| Principal amount repaid | $ 230,000,000 |
| X | ||||||||||
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- Definition
Accumulated appreciation or loss, net of tax, in value of the total of available-for-sale securities at the end of an accounting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Accumulated adjustment, net of tax, that results from the process of translating subsidiary financial statements and foreign equity investments into the reporting currency from the functional currency of the reporting entity, net of reclassification of realized foreign currency translation gains or losses. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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- Definition
The number of shares issued in exchange for the original debt being converted in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or payments in the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Decrease for amounts repaid on the debt instrument for the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Interest rate stated in the contractual debt agreement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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- Definition
Represents details pertaining to other accumulated other comprehensive income. No definition available.
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