| o. | Derivative financial instruments and hedge accounting: |
The Group enters into a variety of derivative financial instruments, some of which are intended to mitigate its exposure to interest rate and foreign exchange rate risks, including interest rate swaps and cross currency swaps. Further details of derivative financial instruments are disclosed in note 20.
Derivatives are initially recognized at fair value at the date the derivative contract is entered into and are subsequently re-measured at their fair value each balance sheet date. The resulting gain or loss from a derivative is immediately recognized in profit and loss. A derivative is presented as a non-current asset or a non-current liability if the remaining maturity of the derivative is more than 12 months and as a current asset or a current liability if the remaining maturity of the derivative is less than 12 months.