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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Amount of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit.

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Goodwill and other intangible assets, net - additional information (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 29, 2015	Mar. 30, 2014	Dec. 31, 2014
Finite-Lived Intangible Assets [Line Items]
Intangible assets, net	$ 1,183,549		$ 1,216,720
Amortization expense of intangible assets	14,740us-gaap_AmortizationOfIntangibleAssets	16,019us-gaap_AmortizationOfIntangibleAssets
Minimum
Finite-Lived Intangible Assets [Line Items]
Intangible asset useful life	7 years
Maximum
Finite-Lived Intangible Assets [Line Items]
Intangible asset useful life	18 years
In Process Research and Development
Finite-Lived Intangible Assets [Line Items]
Intangible assets, net	27,600
Trade Names
Finite-Lived Intangible Assets [Line Items]
Intangible assets, net	61,500
Intangible asset useful life	20 years
In Process Research and Development
Finite-Lived Intangible Assets [Line Items]
Indefinite-lived intangible assets	41,000		68,694
In Process Research and Development \| Semprus Technology
Finite-Lived Intangible Assets [Line Items]
Indefinite-lived intangible assets	$ 41,000