Business Segment Information (Geographical Information) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Sep. 28, 2013	Sep. 29, 2012	Oct. 01, 2011
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	$ 569,439	$ 542,256	$ 467,368
Property and Equipment, Net	78,399	61,653	56,252
United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	137,750	140,305	109,133
Property and Equipment, Net	55,509	40,522	35,972
Europe [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	178,610	167,828	150,132
Property and Equipment, Net	13,838	12,059	11,362
China [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	127,368	103,977	104,461
Property and Equipment, Net	7,661	7,377	6,944
Asia, Excluding China [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	96,653	100,166	76,162
Property and Equipment, Net	1,391	1,695	1,974
Other [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	$ 29,058	$ 29,980	$ 27,480