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Stockholders' Equity And Stock-Based Compensation (Stock Repurchase Authorizations) (Details) - USD ($) $ in Thousands	Jan. 01, 2016	Oct. 31, 2014	Feb. 29, 2012	Jul. 31, 2011	Jul. 31, 2010	Nov. 30, 2009
Equity, Class of Treasury Stock [Line Items]
Authorization Amount	$ 1,100,000					$ 250,000
Additional Stock Approved [Member]
Equity, Class of Treasury Stock [Line Items]
Authorization Amount		$ 200,000	$ 100,000	$ 250,000	$ 300,000

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

Amount of stock repurchase plan authorized.

+ References

No definition available.

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