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Pro Forma Effect on Operating Results (Detail) (Miranda Technologies Inc [Member], USD $)
In Thousands, except Per Share data, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 30, 2012
Oct. 02, 2011
Sep. 30, 2012
Oct. 02, 2011
Miranda Technologies Inc [Member]
       
Schedule Of Condensed Consolidating Statement Of Operations [Line Items]        
Revenues $ 500,971 $ 565,461 $ 1,531,882 $ 1,639,175
Income (loss) from continuing operations $ (46,699) $ 38,310 $ 12,370 $ 74,996
Diluted income (loss) per share from continuing operations $ (1.04) $ 0.79 $ 0.27 $ 1.55