Receivables - Aging of Finance and Contract Receivables (Detail) - USD ($) $ in Millions	Jul. 01, 2017	Dec. 31, 2016
Receivables [Abstract]
Finance receivables, 30-59 Days Past Due	$ 15.3	$ 15.1
Finance receivables, 60-90 Days Past Due	9.8	9.8
Finance receivables, Greater Than 90 Days Past Due	14.6	17.0
Finance receivables, Total Past Due	39.7	41.9
Finance receivables, Total Not Past Due	1,507.9	1,413.7
Finance receivables, Total	1,547.6	1,455.6
Finance receivables, Greater Than 90 Days Past Due and Accruing	11.1	13.2
Contract receivables, 30-59 Days Past Due	1.4	1.4
Contract receivables, 60-90 Days Past Due	0.8	0.9
Contract receivables, Greater Than 90 Days Past Due	1.7	1.4
Contract receivables, Total Past Due	3.9	3.7
Contract receivables, Total Not Past Due	382.7	375.0
Contract receivables, Total	386.6	378.7
Contract receivables, Greater Than 90 Days Past Due and Accruing	$ 0.7	$ 0.5