Acquisitions (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended		0 Months Ended	12 Months Ended		12 Months Ended
	Jan. 01, 2011	Jan. 02, 2010	Apr. 06, 2010 Wanda Snap-On [Member]	Dec. 31, 2011 Wanda Snap-On [Member]	Mar. 05, 2008 Wanda Snap-On [Member]	Dec. 31, 2011 CIT Group Inc. [Member]	Jul. 16, 2009 CIT Group Inc. [Member]
Business Acquisition [Line Items]
Acquisition of ownership interest			40.00%		60.00%
Reason for the acquisition				The acquisition of Xiaoshan is part of the company's ongoing strategic initiatives to further expand its manufacturing presence in emerging growth markets and lower-cost regions.
Purchase price to acquire remaining interest	$ 7.7	$ 8.1	$ 7.7
Transaction costs			0.1
Limited Liability Company Ownership Percentage Acquired From Joint Venture Termination							50.00%
Acquisition cash purchase							$ 8.1
Joint venture termination						July 2009