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Short-term and Long-term Investments - Summary of Estimated Fair Value of Available-for-Sale Investments Classified by Contractual Maturities (Detail) (USD $)
In Thousands, unless otherwise specified |
Sep. 30, 2013
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| Amortized Cost And Fair Value Debt Securities [Abstract] | |
| Due within one year | $ 136,672 |
| After one year through two years | 81,109 |
| Aggregate Fair Value | $ 217,781 |
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- Definition
Amount of available-for-sale debt securities at fair value maturing in the second fiscal year through the fifth fiscal year following the latest fiscal year. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of available-for-sale debt securities at fair value maturing in the next fiscal year following the latest fiscal year. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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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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- Details
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