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Cash and Cash Equivalents and Short-term Investments (Details 4) (USD $)
In Thousands, unless otherwise specified |
Dec. 31, 2013
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| Debt securities: | |
| Due after one year through five years | $ 15,600 |
| Due in more than five years | 4,676 |
| Total debt securities | $ 20,276 |
| X | ||||||||||
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- Definition
Amount of available-for-sale debt securities at fair value maturing after the fifth rolling twelve months following the latest balance sheet presented. No definition available.
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
Amount of available-for-sale debt securities at fair value maturing in the second rolling twelve months through the fifth rolling twelve months following the latest balance sheet presented. No definition available.
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| X | ||||||||||
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- Definition
Amount of debt securities categorized neither as held-to-maturity nor trading. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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