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Marketable Securities (Summary of Investment Securities in an Unrealized Loss Position) (Details) (Corporate debt securities [Member], USD $) In Thousands, unless otherwise specified	Jun. 30, 2014
Corporate debt securities [Member]
Unrealized Losses
Less than 12 months	$ (191)
12 months or more	(162)
Total	(353)
Fair Value
Less than 12 months	16,875
12 months or more	17,223
Total	$ 34,098

X

- Definition

Amount of accumulated unrealized loss on investments in debt securities classified as held-to-maturity that have been in a continuous loss position for twelve months or longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 50

-Paragraph 7

-URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27337-111563



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- Definition

Amount of accumulated unrealized loss on investments in debt securities classified as held-to-maturity in a continuous loss position.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 50

-Paragraph 7

-URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27337-111563



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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 50

-Paragraph 6

-Subparagraph (a)(1)

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Amount of accumulated unrealized loss on investments in debt securities classified as held-to-maturity that have been in a continuous loss position for less than twelve months.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 50

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-URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27337-111563



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+ References

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-Publisher FASB

-Name Accounting Standards Codification

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-SubTopic 10

-Section 50

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-URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27337-111563



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-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 50

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-URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27337-111563



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