Analysis Of Income And Expense [Abstract]

Hiscox Limited - Filing #5593114

Concept	2024-01-01 to 2024-12-31	2024-01-01 to 2024-12-31	2024-01-01 to 2024-12-31	2024-01-01 to 2024-12-31	2024-01-01 to 2024-12-31	2024-01-01 to 2024-12-31	2024-01-01 to 2024-12-31	2024-01-01 to 2024-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31
Analysis of income and expense [abstract]
Material income and expense [abstract]
Investment income	—	—	383,900,000 USD	—	—	—	—	—	—	—	384,400,000 USD	—	—	—	—	—
Operating expense	—	—	149,400,000 USD	—	—	—	—	—	—	—	125,500,000 USD	—	—	—	—	—
Miscellaneous other comprehensive income [abstract]
Other comprehensive income, net of tax, exchange differences on translation of foreign operations and hedges of net investments in foreign operations [abstract]
Other comprehensive income, net of tax, exchange differences on translation of foreign operations and hedges of net investments in foreign operations	—	—	11,900,000 USD	—	—	—	—	—	—	—	25,000,000 USD	—	—	—	—	—
Share of profit (loss) of associates and joint ventures accounted for using equity method [abstract]
Share of profit (loss) of associates accounted for using equity method	—	—	300,000 USD	—	—	—	—	—	—	—	300,000 USD	—	—	—	—	—
Income tax relating to components of other comprehensive income [abstract]
Income tax relating to components of other comprehensive income that will not be reclassified to profit or loss	—	—	1,500,000 USD	—	—	—	—	—	—	—	1,700,000 USD	—	—	—	—	—
Comprehensive income, continuing and discontinued operations [abstract]
Comprehensive income	– USD	– USD	612,000,000 USD	– USD	11,900,000 USD	– USD	612,000,000 USD	623,900,000 USD	– USD	25,000,000 USD	731,200,000 USD	– USD	706,200,000 USD	– USD	731,200,000 USD	– USD