Commitments and Contingencies (Tables)

6 Months Ended

Jun. 30, 2013

Commitments and Contingencies Disclosure [Abstract]

Schedule of Product Warranty Liabilities

The changes in the Company's aggregate product warranty liabilities, which are included in other current liabilities and other long term-liabilities on the Company's condensed consolidated balance sheets, were as follows (in millions):

	Six Months Ended
	June 24, 2012			June 30, 2013
Balance at beginning of the period	$	4.3		$	5.3
Costs accrued and revenues deferred	0.6			(0.1		)
Warranty liabilities assumed from acquisitions	0.5			(0.2		)
Settlements made (in cash or kind) and revenues recognized	(0.8		)	—
Balance at end of period	4.6			5.0
Less: Current portion	4.6			4.6
Non-current accrued product warranty and deferred warranty revenue	$	—		$	0.4