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Restructuring charges - additional information (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 27, 2016	Mar. 29, 2015
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 9,968	$ 4,448
2015 Restructuring Program
Restructuring Cost and Reserve [Line Items]
Restructuring charges	237	4,238
Aggregate restructuring charges incurred	6,500
Restructuring reserve	1,800
2014 Manufacturing Footprint Realignment Plan
Restructuring Cost and Reserve [Line Items]
Restructuring charges	(536)	$ 163
Aggregate restructuring charges incurred	10,400
Restructuring reserve	6,500
Restructuring expenses	1,600
2014 Manufacturing Footprint Realignment Plan | Accelerated Depreciation And Other Costs
Restructuring Cost and Reserve [Line Items]
Restructuring cost related to accelerated depreciation	2,100
Restructuring charges reversal	500
Restructuring expenses	$ 16,500

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- Definition

Amount of costs incurred to date for the specified restructuring cost.

+ References

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Discloses the amount charged against the accrued restructuring reserves, or earnings if not previously accrued, during the period for the specified type of restructuring cost.

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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.

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Amount of accelerated depreciation charged against earnings associated with exit from or disposal of business activities or restructuring plan.

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Amount of consideration other than cash used to fully or partially settle an accrued restructuring cost.

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