Restructuring Reserve Rollforward (Details) (USD $) In Thousands, unless otherwise specified	6 Months Ended
Jun. 28, 2014	Jun. 29, 2013
Summary of components of accrued liability with respect to Company's business restructuring activities
Beginning balance	$ 8,460	$ 6,278
Additions	9,996	1,314
Cash payments	(9,313)	(5,186)
Adjustments	(101)	(70)
Ending balance	$ 9,042	$ 2,336

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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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.

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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

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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.

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