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Summary of Significant Accounting Policies - Additional Information (Detail) (USD $)
3 Months Ended9 Months Ended
Oct. 01, 2011
Oct. 02, 2010
Oct. 01, 2011
Oct. 02, 2010
Jan. 01, 2011
Significant Accounting Policies [Line Items]     
Non-cash share-based compensation expense$ 5,500,000$ 3,700,000$ 12,776,000$ 11,058,000 
Unrecognized tax benefits related to federal, state and foreign taxes    17,800,000
Unrecognized tax benefits related to federal, state and foreign taxes of which would impact the effective tax rate if recognized    15,900,000
Unrecognized tax benefits, accrued interest    2,100,000
Unrecognized tax benefits, penalties    2,400,000
Unrecognized tax benefits, interest recognized100,000(100,000)   
Unrecognized tax benefits, penalties recognized100,000(100,000)   
Unrecognized tax benefits associated with state, federal and foreign tax positions, decrease due to expiration of statutes on completion of an audit$ (5,500,000) $ (5,500,000)