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)