Business Combinations - Allocation of Purchase Price to Identifiable Tangible and Acquisition of Intangible Assets and Liabilities (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended					0 Months Ended
	Dec. 31, 2013	Dec. 31, 2013 Hart Systems LLC [Member]	Dec. 31, 2013 Hart Systems LLC [Member] Customer Relationships [Member]	Dec. 31, 2013 Hart Systems LLC [Member] Developed technology/know-how [Member]	Dec. 31, 2013 Hart Systems LLC [Member] Trade Name [Member]	Jul. 13, 2012 Laserband LLC [Member]	Jul. 13, 2012 Laserband LLC [Member] Customer Relationships [Member]	Jul. 13, 2012 Laserband LLC [Member] Customer Relationships [Member] Minimum [Member]	Jul. 13, 2012 Laserband LLC [Member] Customer Relationships [Member] Maximum [Member]	Jul. 13, 2012 Laserband LLC [Member] Current Technology [Member]	Jul. 13, 2012 Laserband LLC [Member] Patents and Patent Rights [Member]
Business Acquisition [Line Items]
Intangible Assets, Amount		$ 37,200	$ 32,100	$ 4,800	$ 300	$ 29,560	$ 18,720			$ 6,260	$ 4,580
Intangible Assets Useful life	6 years 6 months		15 years	5 years	1 year			5 years	9 years	5 years	7 years