Exit and Disposal Activities - Components of Exit and Disposal Accrual Activity (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Apr. 04, 2015
Restructuring Cost and Reserve [Line Items]
Beginning Balance	$ 6.5
Provision	0
Usage	(0.7)
Ending Balance	5.8
Severance costs [Member] | Commercial & Industrial Group [Member]
Restructuring Cost and Reserve [Line Items]
Beginning Balance	0.8
Provision	0
Usage	(0.3)
Ending Balance	0.5
Severance costs [Member] | Repair Systems & Information Group [Member]
Restructuring Cost and Reserve [Line Items]
Beginning Balance	5.7
Provision	0
Usage	(0.4)
Ending Balance	$ 5.3