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Changes in Restructuring Reserves (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Apr. 04, 2015	Mar. 29, 2014
Restructuring Cost and Reserve [Line Items]
Beginning balance	$ 0us-gaap_RestructuringReserve	$ 0us-gaap_RestructuringReserve
Provision for restructuring reserves	148us-gaap_RestructuringCharges	227us-gaap_RestructuringCharges
Cash payments made	(148)us-gaap_PaymentsForRestructuring	(227)us-gaap_PaymentsForRestructuring
Ending balance	$ 0us-gaap_RestructuringReserve	$ 0us-gaap_RestructuringReserve

- 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+ Details