Intangible Assets and Goodwill (Details) (USD $)
3 Months Ended
Jun. 26, 2011
Jun. 26, 2011
Successor [Member]
Dec. 26, 2010
Successor [Member]
Jun. 26, 2011
Successor [Member]
Developed Technology [Member]
Dec. 26, 2010
Successor [Member]
Developed Technology [Member]
Jun. 26, 2011
Successor [Member]
Customer Relationships [Member]
Dec. 26, 2010
Successor [Member]
Customer Relationships [Member]
Jun. 26, 2011
Successor [Member]
Trade Name [Member]
Dec. 26, 2010
Successor [Member]
Trade Name [Member]
Jun. 26, 2011
GL NOR Flash Memory [Member]
Amortizable intangible assets   $ 183,287,000 $ 167,448,000 $ 81,474,000 $ 65,900,000 $ 93,613,000 $ 93,348,000 $ 8,200,000 $ 8,200,000  
Less: Accumulated Depreciation   (23,618,000) (12,715,000)              
Intangible assets, net   159,669,000 154,733,000              
IPR&D   27,426,000 43,000,000              
Goodwill   161,974,000 153,338,000 [1]              
Intangible assets and goodwill, net   349,069,000 351,071,000              
Amortization related to some of the projects                   600,000
Capitalization in process of research and development $ 43,000,000                 $ 15,600,000
[1] Derived from audited financial statements at December 26, 2010.