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Derivatives (Detail Textuals) (USD $)
 3 Months Ended 12 Months Ended 9 Months Ended
Apr. 02, 2011
Dec. 31, 2011
Jan. 01, 2011
Oct. 01, 2011
Interest rate swap
Derivative [Line Items]        
Changes associated with the ineffective interest rate swap $ (1,676,000) [1] $ (1,676,000) $ (4,603,000) $ 1,700,000
Amortization of remaining accumulated other comprehensive loss of ineffective swap       500,000
Portion of net income related to reducing fair value of ineffective interest rate swap liability       $ (2,200,000)
[1] During the three months ended April 2, 2011, basic and diluted weighted average shares were 30,843,732. Total share-based awards of 3,096,843 were excluded from our diluted earnings per share calculation because they were anti-dilutive.