Intangible Assets (Detail) (USD $) In Thousands, unless otherwise specified	Sep. 27, 2013	Dec. 31, 2012
Schedule of Intangible Assets Disclosure [Line Items]
Amortizable intangible assets, gross carrying amount	$ 140,765	$ 103,047
Amortizable intangible assets, accumulated amortization	(85,527)	(76,054)
Amortizable intangible assets, net carrying amount	55,238	26,993
Gross carrying amount	153,792	116,074
Accumulated amortization	(85,527)	(76,054)
Net carrying amount	68,265	40,020
Patents and acquired technology
Schedule of Intangible Assets Disclosure [Line Items]
Amortizable intangible assets, gross carrying amount	68,294	61,667
Amortizable intangible assets, accumulated amortization	(54,778)	(50,904)
Amortizable intangible assets, net carrying amount	13,516	10,763
Customer Relationships
Schedule of Intangible Assets Disclosure [Line Items]
Amortizable intangible assets, gross carrying amount	55,517	33,245
Amortizable intangible assets, accumulated amortization	(22,911)	(18,981)
Amortizable intangible assets, net carrying amount	32,606	14,264
Customer Backlog
Schedule of Intangible Assets Disclosure [Line Items]
Amortizable intangible assets, gross carrying amount	3,623	2,355
Amortizable intangible assets, accumulated amortization	(3,516)	(2,355)
Amortizable intangible assets, net carrying amount	107
Trademarks, trade names and other
Schedule of Intangible Assets Disclosure [Line Items]
Amortizable intangible assets, gross carrying amount	13,331	5,780
Amortizable intangible assets, accumulated amortization	(4,322)	(3,814)
Amortizable intangible assets, net carrying amount	9,009	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