Allocation of Acquisition Costs to Assets Acquired and Liabilities Assumed (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011	Mar. 18, 2013 FTL	Dec. 31, 2012 ERC	Apr. 30, 2012 ERC	Dec. 31, 2012 PPC	Apr. 11, 2012 PPC	Dec. 31, 2012 Matcon	Jul. 20, 2012 Matcon	Dec. 31, 2011 Advanced Thin Films, LLC	Dec. 31, 2011 Microfluidics International Corporation	Dec. 31, 2011 CVI MG	Jun. 10, 2011 CVI MG
Business Acquisition [Line Items]
Accounts receivable	$ 14,411	$ 26,685	$ 3,454	$ 5,766		$ 877		$ 7,768		$ 947	$ 1,760	$ 23,978
Inventory	5,760	55,946	4,524	4,224		932		604		852	2,226	52,868
Other current assets, net of cash acquired	3,113	8,451	131	981		252		1,880		73	816	7,562
Property, plant and equipment	10,369	36,635	1,357	2,738		1,936		5,695		5,019	567	31,049
Goodwill	50,387	232,613	17,994	8,499	8,500	13,941	13,900	27,947	28,000	18,220	5,853	208,540	208,500
Intangible assets	24,827	136,929	13,016	5,642	5,600	5,104	5,100	14,081	14,100	11,435	9,717	115,777	115,800
Other assets	1,575	5,391		1,509		13		53		2,731	548	2,112
Total assets acquired	110,442	502,650	40,476	29,359		23,055		58,028		39,277	21,487	441,886
Total liabilities assumed	(30,754)	(56,289)	(5,939)	(16,074)		(2,465)		(12,215)		(4,766)	(2,951)	(48,572)
Net assets acquired	$ 79,688	$ 446,361	$ 34,537	$ 13,285		$ 20,590		$ 45,813		$ 34,511	$ 18,536	$ 393,314