Other Balance Sheet and Statement of Operations Information Additional Detail (Detail) (USD $) In Millions, unless otherwise specified	9 Months Ended
Sep. 30, 2014
Minority Interest Ownership Percentage By Noncontrolling Owners	3300.00%
Minimum Exercise Price	$ 46.0
Call Option Premium	2500.00%

In the third quarter of 2014, the Company agreed to exercise its call option to acquire the remaining interest of Copal Amba that it does not currently own which is expected to close in the fourth quarter of 2014. In accordance with certain agreements relating to the acquisition of Copal Amba, the Company will incur a 25% premium to the formulaic redemption value of the non controlling interest.

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