Debt (Senior Secured Notes) (Details) (USD $) In Millions, unless otherwise specified	6 Months Ended
	Jun. 30, 2013	Jun. 24, 2012
Senior Secured Notes [Member]
Debt Instrument [Line Items]
Percentage of stock pledge of domestic subsidiaries	100.00%
Percentage of stock pledge of all first-tier foreign subsidiaries	65.00%
Book value of collateral of bank facility	$ 114
High [Member] | Shelf Notes [Member]
Debt Instrument [Line Items]
Additional fixed rate senior secured note	50.0
Maximum [Member]
Debt Instrument [Line Items]
Leverage ratio	2.75
Maximum [Member] | Senior Secured Notes [Member]
Debt Instrument [Line Items]
Leverage ratio	2.75
Minimum [Member]
Debt Instrument [Line Items]
Fixed charge coverage ratio		1.25
Minimum [Member] | Senior Secured Notes [Member]
Debt Instrument [Line Items]
Fixed charge coverage ratio	1.25
Debt Covenant Compliance February 2012 [Member]
Debt Instrument [Line Items]
Leverage ratio		2.75
Adjusted Leverage Ratio Q1 2012		3.00
Adjusted Leverage Ratio Q2 2012		3.35
Adjusted Leverage Ratio Q3 2012		3.25
Debt Covenant Compliance July 2012 [Member]
Debt Instrument [Line Items]
Adjusted Leverage Ratio Q2 2012		5.25
Adjusted Leverage Ratio Q3 2012		6.50
Adjusted leverage ratio Q4 2012		5.50
Adjusted leverage ratio Q1 2013		3.50
Adjusted leverage ratio Q2 2013		2.75
Cash restructuring excluded from EBITDA calculation	$ 25.0
Fixed charge covenant Q4 2012		1.00
Series A Senior Secured Notes [Member] | Debt Covenant Compliance July 2012 [Member]
Debt Instrument [Line Items]
Interest rate	5.75%
Series B Senior Secured Notes [Member] | Debt Covenant Compliance July 2012 [Member]
Debt Instrument [Line Items]
Interest rate	6.13%
Series C Senior Secured Notes [Member] | Debt Covenant Compliance July 2012 [Member]
Debt Instrument [Line Items]
Interest rate	6.50%