Statement Of Changes In Equity [Abstract]

Beazley PLC - Filing #5594698

Concept	2024-01-01 to 2024-12-31	2024-01-01 to 2024-12-31	2024-01-01 to 2024-12-31	As at 2024-12-31	As at 2024-12-31	2024-01-01 to 2024-12-31	As at 2024-12-31	As at 2024-12-31	2024-01-01 to 2024-12-31	2024-01-01 to 2024-12-31	As at 2024-12-31	As at 2024-12-31	2023-01-01 to 2023-12-31	As at 2023-12-31	2023-01-01 to 2023-12-31	As at 2023-12-31	As at 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	As at 2023-12-31	2023-01-01 to 2023-12-31	As at 2023-12-31	As at 2023-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31
Statement of changes in equity [abstract]
Statement of changes in equity [line items]
Equity	—	—	—	4,635,400,000 USD	17,900,000 USD	—	44,600,000 USD	102,900,000 USD	—	—	11,800,000 USD	4,606,800,000 USD	—	3,882,100,000 USD	—	3,941,700,000 USD	12,800,000 USD	—	—	—	10,600,000 USD	—	104,100,000 USD	46,700,000 USD	2,954,000,000 USD	7,600,000 USD	9,700,000 USD	3,015,100,000 USD	46,600,000 USD	109,800,000 USD
Changes in equity [abstract]
Comprehensive income [abstract]
Other comprehensive income	—	—	—	—	—	—	—	—	—	400,000 USD	—	—	6,300,000 USD	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Comprehensive income	— USD	— USD	— USD	—	—	1,200,000 USD	—	—	1,129,500,000 USD	1,130,700,000 USD	—	—	1,033,100,000 USD	—	— USD	—	—	1,027,400,000 USD	— USD	5,700,000 USD	—	— USD	—	—	—	—	—	—	—	—
Dividends recognised as distributions to owners	— USD	— USD	— USD	—	—	— USD	—	—	120,500,000 USD	120,500,000 USD	—	—	107,700,000 USD	—	— USD	—	—	107,700,000 USD	— USD	— USD	—	— USD	—	—	—	—	—	—	—	—
Increase (decrease) through treasury share transactions, equity	14,000,000 USD	— USD	— USD	—	—	— USD	—	—	— USD	14,000,000 USD	—	—	33,600,000 USD	—	33,600,000 USD	—	—	— USD	— USD	— USD	—	— USD	—	—	—	—	—	—	—	—