Financial Instruments - Fair Values of Financial Instruments Not Approximating Carrying Values in Financial Statements (Detail) - USD ($) $ in Millions	Oct. 03, 2015	Jan. 03, 2015
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt and notes payable	$ 937.7	$ 919.3
Carrying Value [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Finance receivables - net	1,164.6	1,052.9
Contract receivables - net	347.1	316.5
Long-term debt and notes payable	937.7	919.3
Fair Value [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Finance receivables - net	1,322.2	1,198.4
Contract receivables - net	378.6	348.2
Long-term debt and notes payable	$ 1,040.4	$ 1,031.3