Segment Information (Revenue By Geographic Segment) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Dec. 31, 2011		Jan. 01, 2011
Revenue	$ 318,276		$ 266,552
Americas [Member]
Revenue	117,490	[1]	100,093	[1]
Europe [Member]
Revenue	133,175	[2]	107,876	[2]
Pacific Rim [Member]
Revenue	37,250		33,612
Japan [Member]
Revenue	30,361		24,971
United States [Member]
Revenue	110,700		95,500
Germany [Member]
Revenue	$ 56,200		$ 33,300

[1] Includes revenue in the United States totaling $110.7 million and $95.5 million for the three months ended December 31, 2011 and January 1, 2011, respectively.

[2] Includes revenue in Germany totaling $56.2 million and $33.3 million for the three months ended December 31, 2011 and January 1, 2011, respectively.