Statement Of Changes In Equity [Abstract]

Lancashire Holdings - Filing #2011596

Concept	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	2023-01-01 to 2023-12-31	As at 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	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	As at 2023-12-31	As at 2023-12-31	As at 2023-12-31	As at 2023-12-31	2023-01-01 to 2023-12-31	As at 2022-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 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	As at 2022-12-31	As at 2022-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	As at 2022-01-01	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31
Statement of changes in equity [abstract]
Statement of changes in equity [line items]
Equity	—	—	1,507,900,000 USD	—	—	182,400,000 USD	—	1,233,200,000 USD	—	— USD	—	—	122,000,000 USD	29,700,000 USD	1,507,900,000 USD	— USD	—	1,326,100,000 USD	—	—	—	—	—	—	1,221,900,000 USD	— USD	— USD	16,200,000 USD	34,000,000 USD	122,000,000 USD	1,326,100,000 USD	—	—	—	1,393,900,000 USD	18,100,000 USD	6 7.9 USD	1,221. 6 USD	2,900,000 USD	18. 1 USD	1, 412.8 USD	— USD	18,900,000 USD	1,3 93.9 USD	18,900,000 USD	— USD	18,900,000 USD	— USD	1,221. 6 USD	— USD	83,900,000 USD	— USD	122,000,000 USD	0. 5 USD	1, 412.3 USD	2,900,000 USD	— USD	— USD	— USD	— USD	— USD	2,900,000 USD	1,393,400,000 USD	— USD	122,000,000 USD	500,000 USD	— USD
Changes in equity [abstract]
Comprehensive income [abstract]
Profit (loss)	—	321,500,000 USD	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	15,500,000 USD	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Comprehensive income	— USD	321,500,000 USD	—	321,500,000 USD	— USD	—	— USD	—	321,500,000 USD	—	— USD	— USD	—	—	—	—	—	—	— USD	— USD	— USD	15,500,000 USD	15,500,000 USD	— USD	—	—	—	—	—	—	—	—	15,500,000 USD	— USD	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Increase (decrease) through share-based payment transactions, equity	— USD	15,700,000 USD	—	15,700,000 USD	15,700,000 USD	—	— USD	—	— USD	—	—	— USD	—	—	—	—	— USD	—	— USD	— USD	9,000,000 USD	9,000,000 USD	— USD	— USD	—	—	—	—	—	—	—	— USD	9. 0 USD	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—