Financial Instruments - Effect of Derivative Instruments Designated as Cash Flow Hedges Included in Accumulated OCI on Consolidated Balance Sheets and Consolidated Statements of Earnings (Detail) - USD ($) $ in Millions	12 Months Ended
	Jan. 02, 2016	Jan. 03, 2015	Dec. 28, 2013
Interest Expense [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Effective Portion of Gain Reclassified from Accumulated OCI into Income	$ 0.3	$ 0.3	$ 0.4
Treasury Locks [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Effective Portion of Gain Recognized in Accumulated OCI	$ 0.0	$ 0.0	$ 0.0