Exit and Disposal Activities - Changes in Restructuring Reserve (Details) - USD ($) $ in Millions	3 Months Ended
	Apr. 02, 2016	Mar. 28, 2015
Severance
Restructuring Reserve [Roll Forward]
Provision	$ 0.1	$ 0.7
Subsidiary Combinations
Restructuring Reserve [Roll Forward]
Beginning Balance	2.2
Provision	0.5
Payments	(1.1)
Ending Balance	1.6
Subsidiary Combinations | Severance
Restructuring Reserve [Roll Forward]
Beginning Balance	1.0
Provision	0.2
Payments	(0.7)
Ending Balance	0.5
Subsidiary Combinations | Other Costs
Restructuring Reserve [Roll Forward]
Beginning Balance	1.2
Provision	0.3
Payments	(0.4)
Ending Balance	1.1
Best Restructuring
Restructuring Reserve [Roll Forward]
Beginning Balance	1.3
Provision	0.0
Payments	(0.3)
Ending Balance	1.0
Best Restructuring | Severance
Restructuring Reserve [Roll Forward]
Beginning Balance	1.3
Provision	0.0
Payments	(0.3)
Ending Balance	1.0
Best Restructuring | Other Costs
Restructuring Reserve [Roll Forward]
Beginning Balance	0.0
Provision	0.0
Payments	0.0
Ending Balance	0.0
CAS Segment Consolidation
Restructuring Reserve [Roll Forward]
Beginning Balance	0.4
Provision	(0.1)
Payments	(0.2)
Ending Balance	0.1
CAS Segment Consolidation | Severance
Restructuring Reserve [Roll Forward]
Beginning Balance	0.4
Provision	(0.1)
Payments	(0.2)
Ending Balance	0.1
CAS Segment Consolidation | Other Costs
Restructuring Reserve [Roll Forward]
Beginning Balance	0.0
Provision	0.0
Payments	0.0
Ending Balance	0.0
Other Restructuring Activities
Restructuring Reserve [Roll Forward]
Beginning Balance	1.4
Provision	0.0
Payments	(0.6)
Other	0.0
Ending Balance	0.8
Other Restructuring Activities | Severance
Restructuring Reserve [Roll Forward]
Beginning Balance	0.4
Provision	0.0
Payments	(0.5)
Other	0.1
Ending Balance	0.0
Other Restructuring Activities | Other Costs
Restructuring Reserve [Roll Forward]
Beginning Balance	1.0
Provision	0.0
Payments	(0.1)
Other	(0.1)
Ending Balance	$ 0.8