Discontinued Operations (Detail)	3 Months Ended	6 Months Ended		12 Months Ended
	Dec. 31, 2011 USD ($)	Jul. 01, 2012 USD ($)	Jun. 26, 2011 USD ($)	Dec. 31, 2010 USD ($)	Dec. 31, 2009 USD ($)	Aug. 06, 2010 EUR (€)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Pre-tax impairment charges					$ 115,400,000
Net tax benefit, related to losses estimated in connection with sale					40,000,000
Total tax benefit associated with losses on sale				101,000,000	66,000,000
Uncertain tax benefit reserved against losses estimated in connection with sale of MV				43,500,000	26,000,000
Impairment charges included in operating loss				111,800,000
Additional tax benefits on impairment charges				18,000,000
Advances to affiliate						20,000,000
Cumulative net tax benefit				57,500,000
Tax benefit by reversing reserve	43,500,000
Incremental tax benefit	$ 7,500,000	$ (9,915,000)	$ 3,195,000