Acquisitions (Acquisition Of The CMOS Image Sensor Business Unit From Cypress Semiconductor) (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 30, 2011
Total business acquisition cost	$ 479.9
In-Process Research and Development [Member]
In-process research and development	10.0
CMOS Image Sensor Business Unit from Cypress Semiconductor [Member] | Customer Relationships [Member]
Intangible assets	4.2
Weighted average useful life, years	6.0
Developed Technology [Member] | CMOS Image Sensor Business Unit from Cypress Semiconductor [Member]
Intangible assets	6.2
Weighted average useful life, years	7.0
Backlog [Member] | CMOS Image Sensor Business Unit from Cypress Semiconductor [Member]
Intangible assets	0.8
Weighted average useful life, years	0.3
Acquisition of the CMOS Image Sensor Business Unit from Cypress Semiconductor [Member]
Cash and cash equivalents	1.5
Receivables, net	2.6
Inventory	9.2
Other current assets	0.4
Property, plant and equipment	1.2
Goodwill	8.0
Intangible assets	11.2
In-process research and development	11.2
Total assets acquired	45.3
Accounts payable	(5.6)
Other current liabilities	(4.2)
Other non-current liabilities	(1.4)
Total liabilities assumed	(11.2)
Net assets acquired	34.1
CMOS Image Sensor Business Unit from Cypress Semiconductor [Member]
Acquired intangible assets	22.4
In-process research and development	11.2
Discount Rate Used For Present Value Calculations	17.50%
Weighted average useful life, years	6.1
Total business acquisition cost	$ 34.1