Cost Associated With Exit And Restructuring Activities (Summary Of Exit And Restructuring Costs Incurred) (Detail) (Zes [Member], USD $) In Thousands, unless otherwise specified	3 Months Ended	9 Months Ended
Oct. 01, 2011	Oct. 01, 2011
Zes [Member]
Restructuring Cost and Reserve [Line Items]
Severance, stay bonuses, and other employee-related expenses	$ 100	$ 1,171
Professional services	38	885
Relocation and transition costs	0	34
Other exit costs	0	0
Total	$ 138	$ 2,090

The charge against earnings in the period, comprised of costs incurred associated with an exit or disposal activity other than for a discontinued operations as defined under generally accepted accounting principles. Costs of such activities include those for one-time termination benefits, termination of an operating lease or other contract, consolidating or closing facilities, and relocating employees, and costs associated with an ongoing benefit arrangement, but excludes costs associated with the retirement of a long-lived asset.

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The charge against earnings in the period, comprised of costs associated with restructuring activities not otherwise specified in the taxonomy pursuant to a duly authorized plan, excluding a discontinued operation as defined by generally accepted accounting principles. Costs of such activities include those for one-time termination benefits, termination of an operating lease or other contract, consolidating or closing facilities, and relocating employees, but excludes costs associated with the retirement of a long-lived asset and severance costs associated with established compensation plans.

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- Definition

The charge against earnings in the period for known and estimated costs of termination benefits provided to current employees that are involuntarily terminated under a benefit arrangement associated with exit from or disposal of business activities or restructurings pursuant to a duly authorized plan, excluding costs or losses pertaining to an entity newly acquired in a business combination or a discontinued operation as defined by generally accepted accounting principles and costs associated with one-time termination benefits.

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