Acquisitions and Acquisition-Related Contingent Consideration (Details Textual) (USD $) In Millions, unless otherwise specified			0 Months Ended
	Feb. 07, 2013 Cosmic Circuit Private Limited [Member]	Apr. 22, 2013 Tensilica [Member]	Feb. 07, 2013 Trust For benefit of children of chief executive officer [Member] Cosmic Circuit Private Limited [Member]
Business Acquisition [Line Items]
Business acquisition, cost of acquired entity, cash expected to be paid	$ 61.2
Related party, ownership percentage in acquired company			8.50%
Business Acquisition Purchase Current Assets Cash and Cash Equivalents of Acquired Entity		25.0
Cash paid for acquired entity at closing		326.4
Additional payments deferred on the acquisition date		$ 5.8