v2.4.0.8
Derivatives - Schedule of Unsettled Purchased Foreign Currency Forward Contracts (Detail)
In Thousands, unless otherwise specified
Mar. 31, 2014
USD ($)
Mar. 31, 2014
Buy Us Dollar Sell Australian Dollar [Member]
Foreign currency forward contracts [Member]
Dec. 31, 2013
Buy Us Dollar Sell Australian Dollar [Member]
Foreign currency forward contracts [Member]
Mar. 31, 2014
Buy Us Dollar Sell Australian Dollar [Member]
United State Dollar [Member]
USD ($)
Dec. 31, 2013
Buy Us Dollar Sell Australian Dollar [Member]
United State Dollar [Member]
USD ($)
Mar. 31, 2014
Buy Us Dollar Sell Australian Dollar [Member]
Foreign Exchange [Member]
AUD
Dec. 31, 2013
Buy Us Dollar Sell Australian Dollar [Member]
Foreign Exchange [Member]
AUD
Mar. 31, 2014
Buy Euro Sell US Dollar [Member]
Foreign currency forward contracts [Member]
Dec. 31, 2013
Buy Euro Sell US Dollar [Member]
Foreign currency forward contracts [Member]
Mar. 31, 2014
Buy Euro Sell US Dollar [Member]
United State Dollar [Member]
USD ($)
Dec. 31, 2013
Buy Euro Sell US Dollar [Member]
United State Dollar [Member]
USD ($)
Mar. 31, 2014
Buy Euro Sell US Dollar [Member]
Foreign Exchange [Member]
EUR (€)
Dec. 31, 2013
Buy Euro Sell US Dollar [Member]
Foreign Exchange [Member]
EUR (€)
Mar. 31, 2014
Buy British Pound Sterling Sell US Dollar [Member]
Foreign currency forward contracts [Member]
Dec. 31, 2013
Buy British Pound Sterling Sell US Dollar [Member]
Foreign currency forward contracts [Member]
Mar. 31, 2014
Buy British Pound Sterling Sell US Dollar [Member]
United State Dollar [Member]
USD ($)
Dec. 31, 2013
Buy British Pound Sterling Sell US Dollar [Member]
United State Dollar [Member]
USD ($)
Mar. 31, 2014
Buy British Pound Sterling Sell US Dollar [Member]
Foreign Exchange [Member]
GBP (£)
Dec. 31, 2013
Buy British Pound Sterling Sell US Dollar [Member]
Foreign Exchange [Member]
GBP (£)
Mar. 31, 2014
Buy Indian Rupee Sell US Dollar [Member]
Foreign currency forward contracts [Member]
Dec. 31, 2013
Buy Indian Rupee Sell US Dollar [Member]
Foreign currency forward contracts [Member]
Mar. 31, 2014
Buy Indian Rupee Sell US Dollar [Member]
United State Dollar [Member]
USD ($)
Dec. 31, 2013
Buy Indian Rupee Sell US Dollar [Member]
United State Dollar [Member]
USD ($)
Mar. 31, 2014
Buy Indian Rupee Sell US Dollar [Member]
Foreign Exchange [Member]
INR
Dec. 31, 2013
Buy Indian Rupee Sell US Dollar [Member]
Foreign Exchange [Member]
INR
Mar. 31, 2014
Buy Polish Zloty Sell US Dollar [Member]
Foreign currency forward contracts [Member]
Dec. 31, 2013
Buy Polish Zloty Sell US Dollar [Member]
Foreign currency forward contracts [Member]
Mar. 31, 2014
Buy Polish Zloty Sell US Dollar [Member]
United State Dollar [Member]
USD ($)
Dec. 31, 2013
Buy Polish Zloty Sell US Dollar [Member]
United State Dollar [Member]
USD ($)
Mar. 31, 2014
Buy Polish Zloty Sell US Dollar [Member]
Foreign Exchange [Member]
PLN
Dec. 31, 2013
Buy Polish Zloty Sell US Dollar [Member]
Foreign Exchange [Member]
PLN
Dec. 31, 2013
Buy Australian Dollar Sell US Dollar [Member]
Foreign currency forward contracts [Member]
Dec. 31, 2013
Buy Australian Dollar Sell US Dollar [Member]
United State Dollar [Member]
USD ($)
Dec. 31, 2013
Buy Australian Dollar Sell US Dollar [Member]
Foreign Exchange [Member]
AUD
Derivative [Line Items]                                                                    
Derivative notional amount $ 750,000     $ 5,151 $ 5,041 5,750 5,625     $ 22,054 $ 16,624 € 16,350 € 12,800     $ 32,729 $ 28,908 £ 20,300 £ 18,450     $ 19,647 $ 18,593 1,266,000 1,174,000     $ 36,181 $ 52,748 115,750 170,400   $ 996 975
Average contract rate   0.8958 0.8962         1.3489 1.2988         1.6123 1.5668         0.0155 0.0158         0.3126 0.3096         1.0215