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Investments in Unrealized Loss Position, Determined to be Temporarily Impaired (Detail) (USD $)
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Jun. 30, 2013
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Jun. 30, 2012
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| Fair Value | ||
| Less than one year | $ 54,257,000 | |
| Greater than one year | 0 | |
| Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value, Total | 54,257,000 | |
| Unrealized Losses | ||
| Less than one year | 218,000 | |
| Greater than one year | 0 | |
| Gross unrealized losses on available-for-sale investments | $ 218,000 | $ 33,000 |
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- Definition
Amount of accumulated pre-tax unrealized loss on investments in available-for-sale securities that have been in a loss position for twelve months or longer impacting investments. No definition available.
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- Definition
Amount of accumulated pre-tax unrealized loss on investments in available-for-sale securities that have been in a loss position for less than twelve months impacting investments. No definition available.
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- Definition
Amount of accumulated pre-tax unrealized loss before deducting pre-tax unrealized gain on investments in available-for-sale securities impacting investments. No definition available.
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- Details
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- Definition
This item represents the aggregate fair value of investments in debt and equity securities in an unrealized loss position which are categorized neither as held-to-maturity nor trading securities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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- Definition
This item represents the aggregate fair value of investments in debt and equity securities categorized neither as held-to-maturity nor trading securities that have been in a continuous unrealized loss position for less than twelve months. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
This item represents the aggregate fair value of investments in debt and equity securities categorized neither as held-to-maturity nor trading securities that have been in a continuous unrealized loss position for twelve months or longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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