Taxation - Income (Loss) Before Income Taxes, Foreign and Domestic (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Income Tax Expense (Benefit)
Income (loss) before taxes	$ 3,110,060	$ (1,218,835)	$ (114,108)
Bermuda
Income Tax Expense (Benefit)
Domestic	2,622,066	(672,950)	156,031
Singapore
Income Tax Expense (Benefit)
Foreign	64,003	112	4,420
Ireland
Income Tax Expense (Benefit)
Foreign	1,730	6	101
U.S.
Income Tax Expense (Benefit)
Foreign	308,768	(367,799)	(92,335)
Australia
Income Tax Expense (Benefit)
Foreign	7,570	(29,214)	7,148
Switzerland
Income Tax Expense (Benefit)
Foreign	(22,016)	(72,773)	(106,249)
Luxembourg
Income Tax Expense (Benefit)
Foreign	(16)	0	0
Canada
Income Tax Expense (Benefit)
Foreign	2,040	0	0
U.K.
Income Tax Expense (Benefit)
Foreign	$ 125,915	$ (76,217)	$ (83,224)