Goodwill and Intangible Assets (Amortization of Intangible Assets) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Jan. 03, 2015	Dec. 28, 2013
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization of acquired intangible assets	$ 9,413	$ 7,789
Cost of license and subscriptions solutions revenue	4,767	4,497
Total amortization expense	$ 14,180us-gaap_AmortizationOfIntangibleAssets	$ 12,286us-gaap_AmortizationOfIntangibleAssets

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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

-Publisher FASB

-Name Accounting Standards Codification

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-Section 45

-Paragraph 28

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Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

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Reference 3: http://www.xbrl.org/2003/role/presentationRef

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