Business Acquisitions (Schedule of Purchased Intangible Assets) (Details) - USD ($) $ in Thousands				3 Months Ended
	Aug. 03, 2015	Jul. 17, 2014	Apr. 01, 2014	Sep. 30, 2015
Core/developed technology
Business Acquisition [Line Items]
Useful Life				10 years
Customer-related
Business Acquisition [Line Items]
Useful Life				5 years
Backlog
Business Acquisition [Line Items]
Useful Life				1 year
Micrel Incorporated [Member]
Business Acquisition [Line Items]
Purchased Intangible Assets	$ 274,800
Micrel Incorporated [Member] | Core/developed technology
Business Acquisition [Line Items]
Useful Life	10 years
Purchased Intangible Assets	$ 176,800			$ 176,800
Micrel Incorporated [Member] | In-process technology
Business Acquisition [Line Items]
Useful Life	10 years
Purchased Intangible Assets	$ 22,100			22,100
Micrel Incorporated [Member] | Customer-related
Business Acquisition [Line Items]
Useful Life	5 years
Purchased Intangible Assets	$ 70,400			70,400
Micrel Incorporated [Member] | Backlog
Business Acquisition [Line Items]
Useful Life	1 year
Purchased Intangible Assets	$ 5,500			$ 5,500
ISSC Technologies Corporation [Member]
Business Acquisition [Line Items]
Purchased Intangible Assets		$ 147,800
ISSC Technologies Corporation [Member] | Core/developed technology
Business Acquisition [Line Items]
Useful Life		10 years
Purchased Intangible Assets		$ 68,900
ISSC Technologies Corporation [Member] | In-process technology
Business Acquisition [Line Items]
Useful Life		10 years
Purchased Intangible Assets		$ 27,200
ISSC Technologies Corporation [Member] | Customer-related
Business Acquisition [Line Items]
Useful Life		3 years
Purchased Intangible Assets		$ 51,100
ISSC Technologies Corporation [Member] | Backlog
Business Acquisition [Line Items]
Useful Life		1 year
Purchased Intangible Assets		$ 600
Supertex Inc.
Business Acquisition [Line Items]
Purchased Intangible Assets			$ 89,600
Supertex Inc. | Core/developed technology
Business Acquisition [Line Items]
Useful Life			10 years
Purchased Intangible Assets			$ 68,900
Supertex Inc. | In-process technology
Business Acquisition [Line Items]
Useful Life			10 years
Purchased Intangible Assets			$ 1,900
Supertex Inc. | Customer-related
Business Acquisition [Line Items]
Useful Life			2 years
Purchased Intangible Assets			$ 17,700
Supertex Inc. | Backlog
Business Acquisition [Line Items]
Useful Life			1 year
Purchased Intangible Assets			$ 1,100