Acquisitions - Additional Information (Detail)	3 Months Ended		0 Months Ended
	Mar. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)	Mar. 18, 2013 FTL Seals Technology, Ltd USD ($)	Mar. 18, 2013 FTL Seals Technology, Ltd GBP (£)
Business Acquisition [Line Items]
Aggregate purchase price			$ 34,500,000	£ 23,100,000
Goodwill	1,349,926,000	1,349,456,000	18,000,000
Intangible assets			13,000,000
Goodwill not deductible for tax purpose			18,000,000
Acquisition-related transaction costs	$ 500,000