XML 41 R45.htm IDEA: XBRL DOCUMENT v3.3.0.814
Derivative Instruments and Hedging Activities - Additional Information (Detail) - 9 months ended Sep. 30, 2015
USD ($)
EUR (€)
Derivative [Line Items]    
Maximum contractual period for derivatives 12 months  
Forward Contracts [Member]    
Derivative [Line Items]    
Derivative, notional amount $ 8,000,000 € 7,100,000
Derivative maturity year 2015