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Marketable Securities (Schedule Of Marketable Securities) (Details) (USD $)
In Thousands, unless otherwise specified |
6 Months Ended | 12 Months Ended |
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Jun. 30, 2014
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Dec. 31, 2013
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| Marketable Securities [Line Items] | ||
| Cost | $ 24,500 | $ 13,250 |
| Gross Unrealized Gains | 0 | 0 |
| Gross Unrealized Losses | (34) | (17) |
| Fair Value | 24,466 | 13,233 |
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Certificates Of Deposit
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| Marketable Securities [Line Items] | ||
| Cost | 24,500 | 13,250 |
| Gross Unrealized Gains | 0 | 0 |
| Gross Unrealized Losses | (34) | (17) |
| Fair Value | $ 24,466 | $ 13,233 |
| X | ||||||||||
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- Definition
Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
This item represents the cost of debt and equity securities, which are categorized neither as held-to-maturity nor trading, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of unrealized gain before deducting unrealized loss on investments in debt and equity securities classified as available-for-sale securities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of unrealized loss before deducting unrealized gain on investments in available-for-sale securities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Details
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