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Marketable Securities (Contractual Maturities Of Marketable Securities) (Details) $ in Thousands	Sep. 30, 2015 USD ($)
Marketable Securities [Abstract]
Due in one year or less, Amortized Cost	$ 144,120
Due after one through two years, Amortized Cost	64,377
Total marketable securities, Amortized Cost	208,497
Due in one year or less, Fair Value	144,109
Due after one through two years, Fair Value	64,290
Total marketable securities, Fair Value	$ 208,399

X

- Definition

Amount after adjustments of available-for-sale debt securities at cost, maturing in the second fiscal year through the fifth fiscal year following the latest fiscal year. Adjustments include, but are not limited to, accretion, amortization, collection of cash, previous other-than-temporary impairments (OTTI) recognized in earnings less cumulative-effect adjustments, and fair value hedge accounting adjustments. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

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-Publisher FASB



-Name Accounting Standards Codification



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-SubTopic 10



-Section S99



-Paragraph 1



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Fair value of available-for-sale debt securities maturing in the second fiscal year through the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

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Amount after adjustments of available-for-sale debt securities at cost, maturing in the next fiscal year following the latest fiscal year. Adjustments include, but are not limited to, accretion, amortization, collection of cash, previous other-than-temporary impairments (OTTI) recognized in earnings less cumulative-effect adjustments, and fair value hedge accounting adjustments. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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