Property, Plant and Equipment - Additional Information (Detail) (USD $)	12 Months Ended
Dec. 29, 2012	Dec. 31, 2011	Jan. 01, 2011
Property, Plant and Equipment [Line Items]
Depreciation	$ 49,538,000	$ 49,866,000	$ 46,986,000
Amortization of intangible assets	54,590,000	55,780,000	57,098,000
Accumulated depreciation on assets	322,478,000	291,236,000
Capitalized software [Member]
Property, Plant and Equipment [Line Items]
Amortization of intangible assets	8,200,000	6,700,000	5,700,000
Capital leases [Member]
Property, Plant and Equipment [Line Items]
Machinery and equipment	11,500,000	10,900,000
Accumulated depreciation on assets	$ 6,100,000	$ 4,500,000

The cumulative amount of depreciation, depletion and amortization (related to property, plant and equipment, but not including land) that has been recognized in the income statement.

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The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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- Definition

The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

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