Identifiable Intangible Assets and their Estimated Useful Lives (Detail) (USD $) In Thousands, unless otherwise specified		3 Months Ended					3 Months Ended					3 Months Ended
	Jan. 02, 2011 Actel Corporation	Jan. 02, 2011 Actel Corporation Completed Technology Year	Jan. 02, 2011 Actel Corporation Customer Relationships Year	Jan. 02, 2011 Actel Corporation Backlog Year	Jan. 02, 2011 Actel Corporation Trade Names Year	Jul. 03, 2011 AML Communications, Inc	Jul. 03, 2011 AML Communications, Inc Completed Technology Year	Jul. 03, 2011 AML Communications, Inc Customer Relationships Year	Jul. 03, 2011 AML Communications, Inc Backlog Year	Jul. 03, 2011 AML Communications, Inc Trade Names Year	Oct. 02, 2011 Asic Advantage, Inc	Oct. 02, 2011 Asic Advantage, Inc Completed Technology Year	Oct. 02, 2011 Asic Advantage, Inc Customer Relationships Year	Oct. 02, 2011 Asic Advantage, Inc Backlog Year	Oct. 02, 2011 Asic Advantage, Inc Trade Names Year
Acquired Finite-Lived Intangible Assets [Line Items]
Intangible assets	$ 232,600	$ 147,000	$ 68,000	$ 13,600	$ 4,000	$ 10,000	$ 4,200	$ 4,600	$ 1,100	$ 100	$ 9,170	$ 2,890	$ 3,940	$ 2,230	$ 110
Weighted Average Useful Life (in year)		8	7	1	3		6	5	2	2		6	5	1	2