Commitments and Contingencies - Warranty (Details) (USD $) In Millions, unless otherwise specified	6 Months Ended
Jun. 24, 2012	Jun. 26, 2011
Movement in Standard and Extended Product Warranty, Increase (Decrease) [Roll Forward]
Balance at beginning of the period	$ 4.3	$ 1.9
Costs accrued and revenues deferred	0.6	0.4
Warranty liabilities assumed from acquisitions	0.5	0
Settlements made (in cash or kind) and revenues recognized	(0.8)	(0.4)
Balance at end of period	4.6	1.9
Less: Current portion	0	1.6
Noncurrent accrued product warranty and deferred warranty revenue	$ 4.6	$ 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

Product Warranty Accrual, Warranty Term

No definition available.

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- Definition

Carrying value as of the balance sheet date of obligations incurred through that date and payable for estimated claims under standard and extended warranty protection rights granted to customers.

+ References

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- Definition

Total liability for standard and extended product warranties acquired in a business acquisition.

+ References

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Carrying value as of the balance sheet date of obligations incurred through that date and payable for estimated claims under standard and extended warranty protection rights granted to customers. For classified balance sheets, represents the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

+ References

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Carrying value as of the balance sheet date of obligations incurred through that date and due after one year (or beyond the operating cycle if longer) for estimated claims under standard and extended warranty protection rights granted to customers.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

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- Definition

Represents the aggregate decrease in the liability related to payments to satisfy claims for standard and extended product warranties.

+ References

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- Definition

Represents the aggregate increase in the liability for accruals related to standard and extended product warranties issued during the reporting period.

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