Fair Value Measurements (Financial Assets And Liabilities Measured At Fair Value On Recurring Basis) (Details) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Mar. 29, 2014		Sep. 30, 2013
Financial assets:
Cash equivalents—Level 1	$ 73,167		$ 56,706
Forward contracts	177		301
Financial assets, fair value	73,344		57,007
Contingent Consideration Liability, Fair Value Disclosure	13,048		0
Financial liabilities:
Forward contracts	937		438
Liabilities, Fair Value Disclosure, Recurring	14,449		438
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability	464
Contingent Consideration Liability, Fair Value Disclosure	13,512
Level 1
Financial assets:
Cash equivalents—Level 1	73,167	[1]	56,706	[1]
Forward contracts			0
Financial assets, fair value	73,167		56,706
Financial liabilities:
Forward contracts			0
Liabilities, Fair Value Disclosure, Recurring	0		0
Contingent Consideration Liability, Fair Value Disclosure	0
Level 2
Financial assets:
Cash equivalents—Level 1	0		0
Forward contracts	177		301
Financial assets, fair value			301
Financial liabilities:
Forward contracts	937		438
Liabilities, Fair Value Disclosure, Recurring	937		438
Contingent Consideration Liability, Fair Value Disclosure	0
Fair Value, Inputs, Level 3 [Member]
Financial assets:
Cash equivalents—Level 1	0		0
Forward contracts	0		0
Financial assets, fair value			0
Financial liabilities:
Forward contracts	0		0
Liabilities, Fair Value Disclosure, Recurring	13,512		0
Contingent Consideration Liability, Fair Value Disclosure	$ 13,512

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