Commitments and Contingencies (Tables)

6 Months Ended

Jun. 24, 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):

	Six Months Ended
	June 26, 2011			June 24, 2012
Balance, at beginning of the period	$	1.9		$	4.3
Costs accrued and revenues deferred	0.4			0.6
Warranty liabilities assumed from acquisitions	—			0.5
Settlements made (in cash or kind) and revenues recognized	(0.4		)	(0.8		)
Balance, at end of period	1.9			4.6
Less: Current portion	1.6			—
Non-current accrued product warranty and deferred warranty revenue	$	0.3		$	4.6