Amount of liability recognized arising from contingent consideration in a business combination.

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Amount of gain (loss) recognized in other comprehensive income (loss) for financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

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Amount of purchases, (sales), issuances and (settlements) of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

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Fair value of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

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Cash outflow representing an adjustment to the purchase price of a previous acquisition.

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Financial Instruments and Derivative Instruments (Details 2) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
	Jun. 28, 2015	Jun. 28, 2015	Dec. 31, 2014
Tekmar
Reconciliation of changes in fair value of all financial assets and liabilities
Contingent liability of the acquisition date fair value			$ 2.5
Contingent consideration payment	$ 2.3
Contingent consideration
Reconciliation of changes in fair value of all financial assets and liabilities
Balance at the beginning of the period		$ 2.5
Settlements		2.3
Total realized and unrealized (gains) losses included in Comprehensive income		$ 0.2