Intangible Assets (Detail) (USD $) In Thousands, unless otherwise specified	Jun. 28, 2013	Dec. 31, 2012
Schedule of Intangible Assets Disclosure [Line Items]
Amortizable intangible assets, gross carrying amount	$ 139,271	$ 103,047
Amortizable intangible assets, accumulated amortization	(81,767)	(76,054)
Amortizable intangible assets, net carrying amount	57,504	26,993
Gross carrying amount	152,298	116,074
Accumulated amortization	(81,767)	(76,054)
Net carrying amount	70,531	40,020
Patents and acquired technology
Schedule of Intangible Assets Disclosure [Line Items]
Amortizable intangible assets, gross carrying amount	67,859	61,667
Amortizable intangible assets, accumulated amortization	(53,000)	(50,904)
Amortizable intangible assets, net carrying amount	14,859	10,763
Customer Relationships
Schedule of Intangible Assets Disclosure [Line Items]
Amortizable intangible assets, gross carrying amount	54,582	33,245
Amortizable intangible assets, accumulated amortization	(21,319)	(18,981)
Amortizable intangible assets, net carrying amount	33,263	14,264
Customer Backlog
Schedule of Intangible Assets Disclosure [Line Items]
Amortizable intangible assets, gross carrying amount	3,598	2,355
Amortizable intangible assets, accumulated amortization	(3,366)	(2,355)
Amortizable intangible assets, net carrying amount	232
Trademarks, trade names and other
Schedule of Intangible Assets Disclosure [Line Items]
Amortizable intangible assets, gross carrying amount	13,232	5,780
Amortizable intangible assets, accumulated amortization	(4,082)	(3,814)
Amortizable intangible assets, net carrying amount	9,150	1,966
Trade Names
Schedule of Intangible Assets Disclosure [Line Items]
Non-amortizable intangible assets, gross carrying amount	13,027	13,027
Non-amortizable intangible assets, accumulated amortization
Non-amortizable intangible assets, net carrying amount	$ 13,027	$ 13,027