Reinsurance (Tables)

12 Months Ended

Dec. 31, 2019

Reinsurance Disclosures [Abstract]

Ceded reinsurance

Assumed, ceded and net amounts for the years ended December 31, 2019, 2018 and 2017 were as follows (in thousands of U.S. dollars):

	Premiums Written		Premiums Earned		Losses and Loss Expenses
2019
Non-life (1)	$	5,792,542	$	5,433,357	$	3,879,242
Life and Health	1,492,778		1,489,721		1,277,684
Assumed	$	7,285,320	$	6,923,078	$	5,156,926
Non-life (1)	$	353,735	$	375,301	$	219,102
Life and Health	22,527		22,559		14,668
Ceded	$	376,262	$	397,860	$	233,770
Non-life (1)	$	5,438,807	$	5,058,056	$	3,660,140
Life and Health	1,470,251		1,467,162		1,263,016
Net	$	6,909,058	$	6,525,218	$	4,923,156

	Premiums Written		Premiums Earned		Losses and Loss Expenses
2018
Non-life	$	5,064,780	$	4,751,958	$	3,566,201
Life and Health	1,235,149		1,235,973		1,035,363
Assumed	$	6,299,929	$	5,987,931	$	4,601,564
Non-life	$	472,498	$	450,096	$	397,554
Life and Health	24,067		24,025		10,755
Ceded	$	496,565	$	474,121	$	408,309
Non-life	$	4,592,282	$	4,301,862	$	3,168,647
Life and Health	1,211,082		1,211,948		1,024,608
Net	$	5,803,364	$	5,513,810	$	4,193,255

	Premiums Written		Premiums Earned		Losses and Loss Expenses
2017
Non-life	$	4,604,938	$	4,483,662	$	3,644,844
Life and Health	982,956		987,884		813,446
Assumed	$	5,587,894	$	5,471,546	$	4,458,290
Non-life	$	450,129	$	428,471	$	639,277
Life and Health	17,839		18,094		(21,969		)
Ceded	$	467,968	$	446,565	$	617,308
Non-life	$	4,154,809	$	4,055,191	$	3,005,567
Life and Health	965,117		969,790		835,415
Net	$	5,119,926	$	5,024,981	$	3,840,982

(1) Non-life Losses and loss expenses include amounts allocated to Corporate and Other as disclosed in Note 18.