Goodwill and Intangible Assets (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Jun. 28, 2014	Sep. 30, 2013
Goodwill [Line Items]
Goodwill	$ 870,766	$ 769,095
Goodwill, Acquired During Period	102,190
Goodwill, Translation and Purchase Accounting Adjustments	(519)
Segment, Software Products [Member]
Goodwill [Line Items]
Goodwill	822,202	720,548
Goodwill, Acquired During Period	102,190
Goodwill, Translation and Purchase Accounting Adjustments	(536)
Segment, Services [Member]
Goodwill [Line Items]
Goodwill	48,564	48,547
Goodwill, Acquired During Period	0
Goodwill, Translation and Purchase Accounting Adjustments	$ 17