Commitments and Contingencies (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended									3 Months Ended
	Dec. 31, 2012	Dec. 31, 2010 lawsuits	Dec. 31, 2008	Sep. 27, 2013 lawsuits	Dec. 08, 2011 Tax Return Examination Years 2002 through 2004 [Member]	Dec. 31, 2008 Tax Return Examination Years 2002 through 2004 [Member]	Mar. 29, 2013 Tax Return Examination Years 2004 through 2007 [Member]	Jan. 23, 2012 Tax Return Examination Years 2005 through 2007 [Member]	Dec. 31, 2010 Tax Return Examination Years 2005 through 2007 [Member]	Mar. 30, 2012 Patents Infrindgement [Member]	Mar. 30, 2012 File for Writ of Mandamus [Member]
Commitments and Contingencies Disclosure [Abstract]
Significant Commitment, Remaining Minimum Amount Committed				$ 132.1
Loss Contingencies [Line Items]
Loss Contingency, New Claims Filed, Number		1
Loss Contingency, Pending Claims, Number				1
Loss Contingency, Patents Allegedly Infringed, Number	5
Loss Contingency, Number of Defendants										4	3
Income Tax Examination, Liability (Refund) Adjustment from Settlement with Taxing Authority					19.8	34.5	(6.8)	21.4	34.2
Income Taxes Paid			$ 18.0