Goodwill and Other Intangible Assets - Other Intangible Assets, Changes in Net Carrying Amount (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2013
Disclosure Other Intangible Assets Changes In Net Carrying Amount [Abstract]
Finite-lived Intangible Assets Acquired		$ 55,327
Other Intangible Assets, Gross Amount [Roll Forward]
Other intangible assets, beginning		54,907
Foreign currency translation effect on balances		2,647
Other intangible assets, ending	112,881	112,881
Other Intangible Assets, Accumulated Amortization [Roll Forward]
Other intangible assets, beginning		(4,015)
Amortization expense	(2,727)	(6,379)
Foreign currency translation effect on balances		(26)
Other intangible assets, ending	$ (10,420)	$ (10,420)

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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