Foreign Exchange Hedging Facility - Additional Information (Detail) - Foreign Exchange Forward [Member] - Cash Flow Hedging [Member] |
3 Months Ended | 9 Months Ended |
|---|---|---|
|
Sep. 30, 2016
USD ($)
ForwardContract
|
Sep. 30, 2016
USD ($)
ForwardContract
|
|
| Derivative Instruments, Gain (Loss) [Line Items] | ||
| Cash flow hedging losses on forward contracts | $ | $ 0 | $ 325,000 |
| Number of contracts outstanding | ForwardContract | 0 | 0 |