Intangible Assets (Detail) - USD ($) $ in Thousands	Apr. 01, 2017	Dec. 31, 2016
Finite-Lived Intangible Assets
Gross carrying Amount	$ 457,701	$ 454,755
Accumulated amortization	249,110	237,207
Net carrying value	208,591	217,548
Developed Technology
Finite-Lived Intangible Assets
Gross carrying Amount	202,653	202,591
Accumulated amortization	131,940	126,077
Net carrying value	70,713	76,514
Trademarks and Trade names
Finite-Lived Intangible Assets
Gross carrying Amount	16,719	16,661
Accumulated amortization	13,109	12,617
Net carrying value	3,610	4,044
Customer Relationships
Finite-Lived Intangible Assets
Gross carrying Amount	219,744	216,918
Accumulated amortization	96,110	90,581
Net carrying value	123,634	126,337
Other
Finite-Lived Intangible Assets
Gross carrying Amount	18,585	18,585
Accumulated amortization	7,951	7,932
Net carrying value	$ 10,634	$ 10,653

Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

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Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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