Goodwill and Intangible Assets (Amortization of Intangible Assets) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Dec. 28, 2013	Dec. 29, 2012
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization of acquired intangible assets	$ 7,789	$ 6,623
Cost of license revenue	4,405	4,639
Cost of service revenue	92	0
Total amortization expense	$ 12,286	$ 11,262

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

-Topic 230

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-Section 45

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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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