Sale Contracts Consisted in Foreign Currency Forward Contracts Outstanding (Detail) In Thousands, unless otherwise specified	12 Months Ended			12 Months Ended		12 Months Ended		12 Months Ended		12 Months Ended		12 Months Ended		12 Months Ended		12 Months Ended		12 Months Ended		12 Months Ended		12 Months Ended		12 Months Ended		12 Months Ended		12 Months Ended		12 Months Ended		12 Months Ended		12 Months Ended		12 Months Ended
	Dec. 31, 2014 USD ($)	Dec. 31, 2014 Australia, Dollars USD ($)	Dec. 31, 2014 Australia, Dollars AUD	Dec. 31, 2014 Brazil, Brazil Real USD ($)	Dec. 31, 2014 Brazil, Brazil Real BRL	Dec. 31, 2014 United Kingdom, Pounds USD ($)	Dec. 31, 2014 United Kingdom, Pounds GBP (£)	Dec. 31, 2014 Canada, Dollars USD ($)	Dec. 31, 2014 Canada, Dollars CAD	Dec. 31, 2014 China, Yuan Renminbi USD ($)	Dec. 31, 2014 China, Yuan Renminbi CNY	Dec. 31, 2014 Euro Member Countries, Euro USD ($)	Dec. 31, 2014 Euro Member Countries, Euro EUR (€)	Dec. 31, 2014 India, Rupees USD ($)	Dec. 31, 2014 India, Rupees INR	Dec. 31, 2014 Japan, Yen USD ($)	Dec. 31, 2014 Japan, Yen JPY (¥)	Dec. 31, 2014 Korea (South), Won USD ($)	Dec. 31, 2014 Korea (South), Won KRW	Dec. 31, 2014 Mexico, Pesos USD ($)	Dec. 31, 2014 Mexico, Pesos MXN	Dec. 31, 2014 Poland, Zlotych USD ($)	Dec. 31, 2014 Poland, Zlotych PLN	Dec. 31, 2014 Russia, Rubles USD ($)	Dec. 31, 2014 Russia, Rubles RUB	Dec. 31, 2014 Singapore, Dollars USD ($)	Dec. 31, 2014 Singapore, Dollars SGD	Dec. 31, 2014 South Africa, Rand USD ($)	Dec. 31, 2014 South Africa, Rand ZAR	Dec. 31, 2014 Sweden, Kronor USD ($)	Dec. 31, 2014 Sweden, Kronor SEK	Dec. 31, 2014 Switzerland, Francs USD ($)	Dec. 31, 2014 Switzerland, Francs CHF	Dec. 31, 2014 Turkey, New Lira USD ($)	Dec. 31, 2014 Turkey, New Lira TRY	Dec. 31, 2014 United Arab Emirates, Dirhams USD ($)	Dec. 31, 2014 United Arab Emirates, Dirhams AED
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional Value	$ 17,400invest_DerivativeNotionalAmount	$ 900	985	$ 1,300	3,184	$ 1,600	£ 950	$ 700	757	$ 1,700	10,664	$ 4,800	€ 3,534	$ 300	19,347	$ 1,300	¥ 131,508	$ 850	881,552	$ 300	4,001	$ 1,600	4,980	$ 200	7,323	$ 400	500	$ 600	6,769	$ 250	1,698	$ 300	268	$ 100	230	$ 200	738
Fair Value Gain (Loss)	$ 1,641	$ 103		$ 157		$ 122		$ 49		$ (5)		$ 515		$ 3		$ 201		$ 53		$ 32		$ 203		$ 86		$ 23		$ 32		$ 33		$ 30		$ 5		$ (1)