Goodwill and Other Intangible Assets Other Intangible Assets, Changes in Net Carrying Amount (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014
Other Intangible Assets, Gross Amount [Roll Forward]
Other intangible assets, beginning of period			$ 116,279
Finite-lived Intangible Assets Acquired			11,100
Foreign currency translation effect on balances			(684)
Other intangible assets, end of period	126,695		126,695
Other Intangible Assets, Accumulated Amortization [Roll Forward]
Other intangible assets, beginning of period			(13,268)
Amortization expense	(2,963)	(2,574)	(5,708)
Foreign currency translation effect on balances			76
Other intangible assets, end of period	$ (18,900)		$ (18,900)