Goodwill and Intangible Assets - Intangible Assets by Major Asset Class (Detail) (USD $) In Thousands, unless otherwise specified							9 Months Ended				9 Months Ended
	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2014 Trade name, trademark and trade dress and other	Dec. 31, 2013 Trade name, trademark and trade dress and other	Sep. 30, 2014 Patents	Dec. 31, 2013 Patents	Sep. 30, 2014 Patents Minimum	Sep. 30, 2014 Patents Maximum	Sep. 30, 2014 Developed technology and other	Dec. 31, 2013 Developed technology and other	Sep. 30, 2014 Developed technology and other Minimum	Sep. 30, 2014 Developed technology and other Maximum
Intangible Assets By Major Class [Line Items]
Useful Life (years)							2 years	16 years			1 year	9 years
Gross	$ 128,132	$ 128,132	$ 88,590	$ 88,590	$ 31,581	$ 31,581			$ 7,961	$ 7,961
Accumulated Amortization	39,285	39,231			31,326	31,287			7,959	7,944
Net Book Value	$ 88,847	$ 88,901	$ 88,590	$ 88,590	$ 255	$ 294			$ 2	$ 17