Financial Instruments - Fair Values of Financial Instruments Not Approximating Carrying Values in Financial Statements (Detail) (USD $) In Millions, unless otherwise specified	Jan. 03, 2015	Dec. 28, 2013
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, notes payable and current maturities of long-term debt	$ 919.3	$ 972.0
Carrying Value [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Finance receivables - net	1,052.9	935.2
Contract receivables - net	316.5	285.5
Long-term debt, notes payable and current maturities of long-term debt	919.3	972.0
Fair Value [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Finance receivables - net	1,198.4	1,084.1
Contract receivables - net	348.2	326.7
Long-term debt, notes payable and current maturities of long-term debt	$ 1,031.3	$ 1,078.9