Restructuring Reserve Rollforward (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended
Sep. 27, 2014	Sep. 28, 2013
Summary of components of accrued liability with respect to Company's business restructuring activities
Beginning balance	$ 8,457us-gaap_RestructuringReserve	$ 6,278us-gaap_RestructuringReserve
Additions	10,615us-gaap_RestructuringCharges	1,746us-gaap_RestructuringCharges
Cash payments	(12,277)us-gaap_PaymentsForRestructuring	(6,386)us-gaap_PaymentsForRestructuring
Adjustments	(391)	(71)
Ending balance	$ 6,404us-gaap_RestructuringReserve	$ 1,567us-gaap_RestructuringReserve

Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation.

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- Definition

Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

+ References

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- Definition

Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

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- Definition

Amount of any reversal and other adjustment made during the period to the amount of a previously accrued liability for a specified type of restructuring cost, excluding adjustments for costs incurred during the period, costs settled during the period, and foreign currency translation adjustments.

+ References

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

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