Fair Value of Outstanding Derivative Instruments (Detail) - USD ($) $ in Thousands |
Jun. 30, 2015 |
Dec. 31, 2014 |
---|---|---|
Derivative [Line Items] | ||
Derivative assets | $ 219 | |
Derivative liabilities | 7 | $ 64 |
Foreign exchange option contracts | Derivatives designated as cash flow hedging instruments | ||
Derivative [Line Items] | ||
Derivative assets | 219 | |
Derivative liabilities | 52 | |
Foreign exchange forward contracts | Derivatives designated as cash flow hedging instruments | ||
Derivative [Line Items] | ||
Derivative liabilities | $ 7 | $ 12 |