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Revision Of Prior Period Financial Statements (Details) (USD $)
3 Months Ended 6 Months Ended 3 Months Ended 6 Months Ended 9 Months Ended 12 Months Ended
Jan. 01, 2011
Oct. 02, 2010
Mar. 31, 2012
Apr. 02, 2011
Jan. 01, 2011
As Adjusted [Member]
Apr. 02, 2011
As Adjusted [Member]
Jul. 02, 2011
As Adjusted [Member]
Oct. 01, 2011
As Adjusted [Member]
Oct. 02, 2010
As Adjusted [Member]
Dec. 31, 2011
As Adjusted [Member]
Increase in long-term assets               $ 17,700,000 $ 14,800,000 $ 17,600,000
Payments for land use rights 3,200,000 9,600,000                
Operating cash flows     81,956,000 48,357,000 (24,300,000) 48,400,000 64,000,000 158,500,000 (7,600,000)  
Investing cash flows     $ (65,644,000) $ (24,221,000) $ (10,000,000) $ (24,200,000) $ (42,100,000) $ (68,700,000) $ (64,800,000)