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Changes in Fair Value of Financial Instruments (Detail) (USD $)
In Thousands, unless otherwise specified |
3 Months Ended | 6 Months Ended |
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Jun. 30, 2014
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Jun. 30, 2014
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Short-term Investments [Member]
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| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] | ||
| Balance | $ 0 | $ 0 |
| Purchases | 243 | 243 |
| Total unrealized (gains) or losses | 0 | 0 |
| Balance | 243 | 243 |
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Long-term Investments [Member]
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| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] | ||
| Balance | 250 | 0 |
| Purchases | 0 | 250 |
| Total unrealized (gains) or losses | 0 | 0 |
| Balance | $ 250 | $ 250 |
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- Details
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- Definition
Amount of gain (loss) recognized in the income statement for financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of purchases of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Fair value of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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