Summary Of Significant Accounting Policies (Narrative) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		12 Months Ended
	Sep. 26, 2010	Jun. 28, 2009	Dec. 25, 2011	Dec. 26, 2010	Dec. 27, 2009	Dec. 29, 2006
Summary Of Significant Accounting Policies [Line Items]
Percentage of revenue received from distributors			66.00%
Standard limited warranty period, in years			1
Notional amount of interest rate hedge						$ 150
Fixed interest rate of interest rate swap						4.99%
Gain on sale of investments					(0.2)
Gain on sale of investments		0.2
Impairment wrote off on investments		2.3
Cost method investments		0.7	3.7	3.7
Purchase of equity investment	3.0			3.0
Intangible assets minimum estimated life, in years			1
Intangible assets maximum estimated life, in years			15
Realized foreign currency gains (losses)			$ 2.6	$ (4.0)	$ (0.8)
Buildings And Improvements [Member]
Summary Of Significant Accounting Policies [Line Items]
Property, plant and equipment, minimum estimated useful life, in years			10
Property, plant and equipment, maximum estimated useful life, in years			30
Machinery And Equipment And Software [Member]
Summary Of Significant Accounting Policies [Line Items]
Property, plant and equipment, minimum estimated useful life, in years			3
Property, plant and equipment, maximum estimated useful life, in years			10
Molds And Tools [Member] | Maximum [Member]
Summary Of Significant Accounting Policies [Line Items]
Other assets, expected useful life, in years			5
Molds And Tools [Member] | Minimum [Member]
Summary Of Significant Accounting Policies [Line Items]
Other assets, expected useful life, in years			1