Income Taxes (Details Textual) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 30, 2012	Jan. 01, 2012	Jan. 02, 2011	Jan. 03, 2010	Dec. 28, 2008
Income Tax Disclosure [Abstract]
Income from domestic operations included in income from continuing operations before income taxes	$ 195.1	$ 180.7	$ 168.1
Income from foreign operations included in income before taxes	33.1	30.9	5.5
Deferred tax assets, valuation allowance	3.1	0.9	0.3
Interest related to unrecognized tax benefit	2.7	1.7
Interest accrued for unrecognized tax benefits	5.8	2.5
Unrecognized tax benefits that would positively impact effective tax rate	32.9
Unrecognized tax benefits	42.6	25.8		10.1	25.2
Unrecognized tax benefits subject to offset by deferred tax assets	9.7
Expected decrease in unrecognized tax benefits over next 12 months	13.7
Undistributed foreign earnings	87.5
Estimated deferred tax liability, undistributed foreign earnings	$ 19.6