Reinsurance (Tables)

12 Months Ended

Dec. 31, 2023

Reinsurance Disclosures [Abstract]

Ceded reinsurance

Direct, assumed, ceded and net amounts for the years ended December 31, 2023, 2022 and 2021 were as follows (in thousands of U.S. dollars): 

	2023
	Premiums Written		Premiums Earned		Losses and Loss Expenses
Non-life	$	347,351	$	372,230	$	188,912
Life and Health	—		—		—
Direct	$	347,351	$	372,230	$	188,912
Non-life	$	6,646,273	$	6,643,101	$	3,346,078
Life and Health	2,108,734		2,108,711		1,838,714
Assumed	$	8,755,007	$	8,751,812	$	5,184,792
Non-life	$	1,145,301	$	1,176,865	$	352,650
Life and Health	28,145		28,417		30,846
Ceded	$	1,173,446	$	1,205,282	$	383,496
Non-life	$	5,848,323	$	5,838,466	$	3,182,340
Life and Health	2,080,589		2,080,294		1,807,868
Net	$	7,928,912	$	7,918,760	$	4,990,208

	2022
	Premiums Written		Premiums Earned		Losses and Loss Expenses
Non-life	$	393,186	$	377,380	$	207,301
Life and Health	—		—		—
Direct	$	393,186	$	377,380	$	207,301
Non-life	$	6,622,236	$	6,319,389	$	3,817,630
Life and Health	1,673,857		1,674,091		1,426,584
Assumed	$	8,296,093	$	7,993,480	$	5,244,214
Non-life	$	1,116,672	$	1,085,317	$	711,697
Life and Health	28,412		28,426		13,946
Ceded	$	1,145,084	$	1,113,743	$	725,643
Non-life	$	5,898,750	$	5,611,452	$	3,313,234
Life and Health	1,645,445		1,645,665		1,412,638
Net	$	7,544,195	$	7,257,117	$	4,725,872

	2021
	Premiums Written		Premiums Earned		Losses and Loss Expenses
Non-life	$	421,756	$	318,058	$	221,173
Life and Health	—		—		—
Direct	$	421,756	$	318,058	$	221,173
Non-life	$	6,135,299	$	5,956,360	$	3,991,292
Life and Health	1,646,870		1,651,485		1,423,826
Assumed	$	7,782,169	$	7,607,845	$	5,415,118
Non-life	$	1,046,227	$	944,862	$	769,220
Life and Health	23,680		24,519		16,031
Ceded	$	1,069,907	$	969,381	$	785,251
Non-life	$	5,510,828	$	5,329,556	$	3,443,245
Life and Health	1,623,190		1,626,966		1,407,795
Net	$	7,134,018	$	6,956,522	$	4,851,040