Other Intangible Assets, Net - Schedule of Other Intangible Assets, Net (Detail) - USD ($) $ in Thousands		Jun. 30, 2015	Dec. 31, 2014
Goodwill and Intangible Assets Disclosure [Abstract]
Gross carrying value	[1]	$ 303,246	$ 218,676
Accumulated amortization		(146,998)	(142,119)
Total		$ 156,248	$ 76,557

[1] Includes patents, trademarks, technological know-how and other intellectual property, valued at acquisition.