Commitments and Contingencies (Tables)

9 Months Ended

Sep. 30, 2012

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):

	Nine Months Ended
	September 25, 2011			September 30, 2012
Balance, at beginning of the period	$	1.9		$	4.6
Costs accrued and revenues deferred	0.4			—
Warranty liabilities assumed from acquisitions	—			1.2
Settlements made (in cash or kind) and revenues recognized	(0.4		)	(0.7		)
Balance, at end of period	1.9			5.1
Less: Current portion	1.6			—
Non-current accrued product warranty and deferred warranty revenue	$	0.3		$	5.1