Retained earnings - revenue Retained earnings - Capital Net asset value per ordinary share Statement of comprehensive income [axis] Revenue [member] Capital [member] Total [member] Statement of comprehensive income [table] Statement of comprehensive income [line items] Unrealised foreign exchange gains on investment Realised loss on restructure Investment acquisition costs Foreign exchange movement on working capital Gain on expired foreign exchange forwards Retained earnings - revenue [member] Retained earnings - capital [member] Adjustments for movement in fair value of investments Adjustments for unrealised foreign exchange loss/(gain) on investments Adjustments for management fee income Adjustments for realised loss on restructure Adjustments for cash received on settled foreign currency contract Adjustments for cash paid on foreign currency contract Investment additions classified as investing activities Cash collateral held for investing purposes classified as investing activities Finance income classified as investing activities Finance costs paid classified as financing activities Bank interest received classified as financing activities