On 31 October 20X3:
* A company expected to agree a foreign currency transaction in January 20X4 for settlement on 31 March 20X4.
* The company hedged the currency risk using a forward contract at nil cost for settlement on 31 March 20X4.
* The transaction was correctly treated as a cash flow hedge in accordance with IAS 39 Financial Instruments: Recognition and Measurement.
On 31 December 20X3, the financial year end, the fair value of the forward contract was $10,000 (asset).
How should the increase in the fair value of the forward contract be treated within the financial statements for the year ended 31 December 20X3?