Commitments and Contingencies (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 30, 2014	Mar. 31, 2013
Movement in Standard and Extended Product Warranty, Increase (Decrease) [Roll Forward]
Balance at beginning of the period	$ 5.4	$ 4.9
Costs accrued and revenues deferred	0.4	0.2
Settlements made (in cash or kind) and revenues recognized	(0.1)	0
Balance at end of period	5.7	5.1
Less: Current portion	(5.3)	(4.8)
Non-current accrued product warranty and deferred warranty revenue	$ 0.4	$ 0.3
Product Warranties | Minimum
Warranty Coverage Period [Line Items]
Warranty coverage period	1 year
Product Warranties | Maximum
Warranty Coverage Period [Line Items]
Warranty coverage period	10 years