Losses and Loss Adjustment Expenses - Loss Triangles (Details) $ in Thousands	Dec. 31, 2019 USD ($) claim	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)	Dec. 31, 2012 USD ($)	Dec. 31, 2011 USD ($)	Dec. 31, 2010 USD ($)
Non-life Run-off
Liability for Claims and Claims Adjustment Expense [Line Items]
Liabilities for unpaid losses and allocated LAE, net of reinsurance	$ 6,656,097
Non-life Run-off | General casualty
Liability for Claims and Claims Adjustment Expense [Line Items]
Liabilities for unpaid losses and allocated LAE, net of reinsurance	813,541
Non-life Run-off | Marine, aviation and transit
Liability for Claims and Claims Adjustment Expense [Line Items]
Liabilities for unpaid losses and allocated LAE, net of reinsurance	342,989
Non-life Run-off | Professional indemnity/Directors & Officers
Liability for Claims and Claims Adjustment Expense [Line Items]
Liabilities for unpaid losses and allocated LAE, net of reinsurance	655,260
Non-life Run-off | Motor
Liability for Claims and Claims Adjustment Expense [Line Items]
Liabilities for unpaid losses and allocated LAE, net of reinsurance	480,599
Non-life Run-off | Property
Liability for Claims and Claims Adjustment Expense [Line Items]
Liabilities for unpaid losses and allocated LAE, net of reinsurance	178,215
Non-life Run-off | Workers' compensation
Liability for Claims and Claims Adjustment Expense [Line Items]
Liabilities for unpaid losses and allocated LAE, net of reinsurance	1,710,528
Atrium
Liability for Claims and Claims Adjustment Expense [Line Items]
Incurred losses and allocated loss adjustment expenses, net of reinsurance	1,216,124
IBNR losses and loss expenses, net of reinsurance	$ 117,257
Cumulative Number of Claims | claim	25,094
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 1,018,737
Liabilities for unpaid losses and allocated LAE, net of reinsurance	197,387
Atrium | 2009 and Prior
Liability for Claims and Claims Adjustment Expense [Line Items]
Incurred losses and allocated loss adjustment expenses, net of reinsurance	553,325	$ 556,252	$ 558,768	$ 560,524	$ 564,128	$ 569,959	$ 573,576	$ 593,467	$ 609,275	$ 546,446
IBNR losses and loss expenses, net of reinsurance	$ 2,839
Cumulative Number of Claims | claim	1,381
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 544,625	543,253	544,954	543,591	541,597	536,706	531,928	521,740	510,113	491,683
Atrium | Accident Year - 2010
Liability for Claims and Claims Adjustment Expense [Line Items]
Incurred losses and allocated loss adjustment expenses, net of reinsurance	43,723	43,739	44,289	45,540	46,024	47,558	51,698	57,835	64,985	26,782
IBNR losses and loss expenses, net of reinsurance	$ 518
Cumulative Number of Claims | claim	201
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 41,631	41,386	41,223	40,650	40,049	39,022	36,530	32,223	25,127	11,442
Atrium | Accident Year - 2011
Liability for Claims and Claims Adjustment Expense [Line Items]
Incurred losses and allocated loss adjustment expenses, net of reinsurance	66,534	66,904	67,358	68,083	69,385	71,104	72,898	84,661	86,326
IBNR losses and loss expenses, net of reinsurance	$ 991
Cumulative Number of Claims | claim	252
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 65,040	64,669	65,199	63,914	62,560	58,627	52,450	39,997	17,138
Atrium | Accident Year - 2012
Liability for Claims and Claims Adjustment Expense [Line Items]
Incurred losses and allocated loss adjustment expenses, net of reinsurance	50,352	50,541	51,012	51,930	53,723	55,903	57,279	70,259
IBNR losses and loss expenses, net of reinsurance	$ 601
Cumulative Number of Claims | claim	385
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 47,598	46,901	45,321	44,430	42,152	37,991	31,474	11,228
Atrium | Accident Year - 2013
Liability for Claims and Claims Adjustment Expense [Line Items]
Incurred losses and allocated loss adjustment expenses, net of reinsurance	50,638	52,049	51,706	54,472	57,798	63,710	58,326
IBNR losses and loss expenses, net of reinsurance	$ 1,441
Cumulative Number of Claims | claim	566
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 46,637	46,099	45,387	43,511	40,443	32,064	14,579
Atrium | Accident Year - 2014
Liability for Claims and Claims Adjustment Expense [Line Items]
Incurred losses and allocated loss adjustment expenses, net of reinsurance	56,737	57,667	60,542	66,104	69,500	69,253
IBNR losses and loss expenses, net of reinsurance	$ 3,104
Cumulative Number of Claims | claim	932
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 51,263	48,542	46,879	41,595	34,368	17,596
Atrium | Accident Year - 2015
Liability for Claims and Claims Adjustment Expense [Line Items]
Incurred losses and allocated loss adjustment expenses, net of reinsurance	58,785	60,210	63,530	71,498	69,646
IBNR losses and loss expenses, net of reinsurance	$ 6,018
Cumulative Number of Claims | claim	1,515
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 47,704	44,544	38,987	29,687	12,029
Atrium | Accident Year - 2016
Liability for Claims and Claims Adjustment Expense [Line Items]
Incurred losses and allocated loss adjustment expenses, net of reinsurance	67,031	70,179	75,318	73,190
IBNR losses and loss expenses, net of reinsurance	$ 10,449
Cumulative Number of Claims | claim	2,803
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 47,962	44,273	34,606	13,729
Atrium | Accident Year - 2017
Liability for Claims and Claims Adjustment Expense [Line Items]
Incurred losses and allocated loss adjustment expenses, net of reinsurance	91,109	94,984	90,247
IBNR losses and loss expenses, net of reinsurance	$ 20,400
Cumulative Number of Claims | claim	5,053
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 56,057	47,723	14,371
Atrium | Accident Year - 2018
Liability for Claims and Claims Adjustment Expense [Line Items]
Incurred losses and allocated loss adjustment expenses, net of reinsurance	91,621	85,044
IBNR losses and loss expenses, net of reinsurance	$ 37,297
Cumulative Number of Claims | claim	6,644
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 34,166	13,130
Atrium | Accident Year - 2019
Liability for Claims and Claims Adjustment Expense [Line Items]
Incurred losses and allocated loss adjustment expenses, net of reinsurance	86,269
IBNR losses and loss expenses, net of reinsurance	$ 33,598
Cumulative Number of Claims | claim	5,362
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 36,054
StarStone | General casualty
Liability for Claims and Claims Adjustment Expense [Line Items]
Incurred losses and allocated loss adjustment expenses, net of reinsurance	1,233,062
IBNR losses and loss expenses, net of reinsurance	$ 422,186
Cumulative Number of Claims | claim	39,890
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 654,790
Liabilities for unpaid losses and allocated LAE, net of reinsurance	578,272
StarStone | Marine
Liability for Claims and Claims Adjustment Expense [Line Items]
Incurred losses and allocated loss adjustment expenses, net of reinsurance	902,111
IBNR losses and loss expenses, net of reinsurance	$ 138,586
Cumulative Number of Claims | claim	49,902
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 601,452
Liabilities for unpaid losses and allocated LAE, net of reinsurance	300,659
StarStone | Property
Liability for Claims and Claims Adjustment Expense [Line Items]
Incurred losses and allocated loss adjustment expenses, net of reinsurance	1,087,901
IBNR losses and loss expenses, net of reinsurance	$ 92,656
Cumulative Number of Claims | claim	42,108
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 837,090
Liabilities for unpaid losses and allocated LAE, net of reinsurance	250,811
StarStone | Aerospace
Liability for Claims and Claims Adjustment Expense [Line Items]
Incurred losses and allocated loss adjustment expenses, net of reinsurance	534,747
IBNR losses and loss expenses, net of reinsurance	$ 22,861
Cumulative Number of Claims | claim	23,704
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 464,089
Liabilities for unpaid losses and allocated LAE, net of reinsurance	70,658
StarStone | Workers' compensation
Liability for Claims and Claims Adjustment Expense [Line Items]
Incurred losses and allocated loss adjustment expenses, net of reinsurance	241,512
IBNR losses and loss expenses, net of reinsurance	$ 74,661
Cumulative Number of Claims | claim	13,881
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 130,178
Liabilities for unpaid losses and allocated LAE, net of reinsurance	111,334
StarStone | 2009 and Prior | General casualty
Liability for Claims and Claims Adjustment Expense [Line Items]
Incurred losses and allocated loss adjustment expenses, net of reinsurance	82,574	82,535	82,324	82,400	82,329	82,278
IBNR losses and loss expenses, net of reinsurance	$ 0
Cumulative Number of Claims | claim	2,543
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 82,546	82,534	82,318	82,395	82,319	82,257
StarStone | 2009 and Prior | Marine
Liability for Claims and Claims Adjustment Expense [Line Items]
Incurred losses and allocated loss adjustment expenses, net of reinsurance	27,100	27,076	27,050	27,018	27,002	27,070
IBNR losses and loss expenses, net of reinsurance	$ 0
Cumulative Number of Claims | claim	1,991
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 27,092	27,077	27,042	27,015	26,990	26,939
StarStone | 2009 and Prior | Property
Liability for Claims and Claims Adjustment Expense [Line Items]
Incurred losses and allocated loss adjustment expenses, net of reinsurance	114,991	114,633	113,696	113,206	113,118	113,828
IBNR losses and loss expenses, net of reinsurance	$ 0
Cumulative Number of Claims | claim	2,901
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 113,338	113,143	113,237	112,987	112,957	112,693
StarStone | 2009 and Prior | Aerospace
Liability for Claims and Claims Adjustment Expense [Line Items]
Incurred losses and allocated loss adjustment expenses, net of reinsurance	0	0	0	0	0	0
IBNR losses and loss expenses, net of reinsurance	$ 0
Cumulative Number of Claims | claim	0
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 0	0	0	0	0	0
StarStone | 2009 and Prior | Workers' compensation
Liability for Claims and Claims Adjustment Expense [Line Items]
Incurred losses and allocated loss adjustment expenses, net of reinsurance	0	0	0	0	0	0
IBNR losses and loss expenses, net of reinsurance	$ 0
Cumulative Number of Claims | claim	0
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 0	0	0	0	0	0
StarStone | Accident Year - 2010 | General casualty
Liability for Claims and Claims Adjustment Expense [Line Items]
Incurred losses and allocated loss adjustment expenses, net of reinsurance	18,612	18,556	18,538	17,856	17,769	16,623
IBNR losses and loss expenses, net of reinsurance	$ 119
Cumulative Number of Claims | claim	729
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 18,466	18,555	18,537	17,855	17,768	15,555
StarStone | Accident Year - 2010 | Marine
Liability for Claims and Claims Adjustment Expense [Line Items]
Incurred losses and allocated loss adjustment expenses, net of reinsurance	19,050	19,040	19,176	19,114	19,270	22,347
IBNR losses and loss expenses, net of reinsurance	$ 144
Cumulative Number of Claims | claim	1,029
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 18,539	18,437	18,372	18,403	18,324	16,300
StarStone | Accident Year - 2010 | Property
Liability for Claims and Claims Adjustment Expense [Line Items]
Incurred losses and allocated loss adjustment expenses, net of reinsurance	72,088	72,146	72,134	72,072	73,437	74,893
IBNR losses and loss expenses, net of reinsurance	$ 0
Cumulative Number of Claims | claim	1,557
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 71,969	72,148	72,131	72,069	71,958	69,070
StarStone | Accident Year - 2010 | Aerospace
Liability for Claims and Claims Adjustment Expense [Line Items]
Incurred losses and allocated loss adjustment expenses, net of reinsurance	18,772	18,970	18,896	18,382	18,073	18,441
IBNR losses and loss expenses, net of reinsurance	$ 17
Cumulative Number of Claims | claim	579
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 18,548	18,494	18,209	17,145	16,539	15,396
StarStone | Accident Year - 2010 | Workers' compensation
Liability for Claims and Claims Adjustment Expense [Line Items]
Incurred losses and allocated loss adjustment expenses, net of reinsurance	0	0	0	0	0	0
IBNR losses and loss expenses, net of reinsurance	$ 0
Cumulative Number of Claims | claim	0
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 0	0	0	0	0	0
StarStone | Accident Year - 2011 | General casualty
Liability for Claims and Claims Adjustment Expense [Line Items]
Incurred losses and allocated loss adjustment expenses, net of reinsurance	26,159	25,422	24,971	25,745	25,435	21,101
IBNR losses and loss expenses, net of reinsurance	$ 765
Cumulative Number of Claims | claim	2,035
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 25,389	24,925	24,294	23,731	21,088	15,745
StarStone | Accident Year - 2011 | Marine
Liability for Claims and Claims Adjustment Expense [Line Items]
Incurred losses and allocated loss adjustment expenses, net of reinsurance	33,538	27,715	27,371	27,330	27,753	29,527
IBNR losses and loss expenses, net of reinsurance	$ 514
Cumulative Number of Claims | claim	1,961
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 32,558	32,803	32,643	32,397	31,152	29,395
StarStone | Accident Year - 2011 | Property
Liability for Claims and Claims Adjustment Expense [Line Items]
Incurred losses and allocated loss adjustment expenses, net of reinsurance	89,708	89,359	89,441	89,752	89,708	91,161
IBNR losses and loss expenses, net of reinsurance	$ 4
Cumulative Number of Claims | claim	1,621
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 89,387	89,345	89,366	89,113	88,608	87,411
StarStone | Accident Year - 2011 | Aerospace
Liability for Claims and Claims Adjustment Expense [Line Items]
Incurred losses and allocated loss adjustment expenses, net of reinsurance	58,770	59,647	58,114	57,681	57,257	58,786
IBNR losses and loss expenses, net of reinsurance	$ 61
Cumulative Number of Claims | claim	2,197
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 57,555	57,028	56,435	55,858	55,179	53,821
StarStone | Accident Year - 2011 | Workers' compensation
Liability for Claims and Claims Adjustment Expense [Line Items]
Incurred losses and allocated loss adjustment expenses, net of reinsurance	0	0	0	0	0	0
IBNR losses and loss expenses, net of reinsurance	$ 0
Cumulative Number of Claims | claim	0
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 0	0	0	0	0	0
StarStone | Accident Year - 2012 | General casualty
Liability for Claims and Claims Adjustment Expense [Line Items]
Incurred losses and allocated loss adjustment expenses, net of reinsurance	42,055	39,477	40,095	43,936	48,251	56,891
IBNR losses and loss expenses, net of reinsurance	$ 3,059
Cumulative Number of Claims | claim	3,128
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 36,076	36,162	33,943	32,694	29,503	18,412
StarStone | Accident Year - 2012 | Marine
Liability for Claims and Claims Adjustment Expense [Line Items]
Incurred losses and allocated loss adjustment expenses, net of reinsurance	59,597	50,618	49,813	51,074	51,418	47,957
IBNR losses and loss expenses, net of reinsurance	$ 405
Cumulative Number of Claims | claim	2,422
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 57,711	57,206	56,589	55,446	53,711	49,727
StarStone | Accident Year - 2012 | Property
Liability for Claims and Claims Adjustment Expense [Line Items]
Incurred losses and allocated loss adjustment expenses, net of reinsurance	58,985	58,721	61,637	60,683	61,707	65,824
IBNR losses and loss expenses, net of reinsurance	$ 12
Cumulative Number of Claims | claim	1,501
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 57,753	55,474	55,274	54,308	52,168	48,103
StarStone | Accident Year - 2012 | Aerospace
Liability for Claims and Claims Adjustment Expense [Line Items]
Incurred losses and allocated loss adjustment expenses, net of reinsurance	57,185	57,450	56,159	56,212	55,370	55,675
IBNR losses and loss expenses, net of reinsurance	$ 125
Cumulative Number of Claims | claim	2,421
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 55,585	54,812	53,622	52,142	49,332	45,897
StarStone | Accident Year - 2012 | Workers' compensation
Liability for Claims and Claims Adjustment Expense [Line Items]
Incurred losses and allocated loss adjustment expenses, net of reinsurance	0	0	0	0	0	0
IBNR losses and loss expenses, net of reinsurance	$ 0
Cumulative Number of Claims | claim	0
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 0	0	0	0	0	0
StarStone | Accident Year - 2013 | General casualty
Liability for Claims and Claims Adjustment Expense [Line Items]
Incurred losses and allocated loss adjustment expenses, net of reinsurance	87,575	78,788	76,172	77,756	66,888	72,771
IBNR losses and loss expenses, net of reinsurance	$ 9,817
Cumulative Number of Claims | claim	4,998
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 69,703	60,389	54,688	50,137	30,448	23,054
StarStone | Accident Year - 2013 | Marine
Liability for Claims and Claims Adjustment Expense [Line Items]
Incurred losses and allocated loss adjustment expenses, net of reinsurance	46,309	57,224	53,913	52,938	55,154	62,904
IBNR losses and loss expenses, net of reinsurance	$ 243
Cumulative Number of Claims | claim	2,226
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 38,733	29,071	27,237	25,135	21,213	12,529
StarStone | Accident Year - 2013 | Property
Liability for Claims and Claims Adjustment Expense [Line Items]
Incurred losses and allocated loss adjustment expenses, net of reinsurance	60,582	62,177	63,959	64,804	65,152	78,145
IBNR losses and loss expenses, net of reinsurance	$ 13
Cumulative Number of Claims | claim	1,959
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 60,416	59,277	53,172	51,086	46,285	30,880
StarStone | Accident Year - 2013 | Aerospace
Liability for Claims and Claims Adjustment Expense [Line Items]
Incurred losses and allocated loss adjustment expenses, net of reinsurance	76,964	77,393	74,900	70,511	70,180	72,098
IBNR losses and loss expenses, net of reinsurance	$ 274
Cumulative Number of Claims | claim	2,568
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 73,511	72,770	68,775	63,439	59,850	50,842
StarStone | Accident Year - 2013 | Workers' compensation
Liability for Claims and Claims Adjustment Expense [Line Items]
Incurred losses and allocated loss adjustment expenses, net of reinsurance	0	0	0	0	0	0
IBNR losses and loss expenses, net of reinsurance	$ 0
Cumulative Number of Claims | claim	0
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 0	0	0	0	0	0
StarStone | Accident Year - 2014 | General casualty
Liability for Claims and Claims Adjustment Expense [Line Items]
Incurred losses and allocated loss adjustment expenses, net of reinsurance	101,748	90,588	90,335	92,812	92,793	91,369
IBNR losses and loss expenses, net of reinsurance	$ 19,074
Cumulative Number of Claims | claim	5,734
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 68,827	64,672	50,767	37,607	21,911	5,769
StarStone | Accident Year - 2014 | Marine
Liability for Claims and Claims Adjustment Expense [Line Items]
Incurred losses and allocated loss adjustment expenses, net of reinsurance	50,026	50,576	54,958	48,450	53,452	50,079
IBNR losses and loss expenses, net of reinsurance	$ 833
Cumulative Number of Claims | claim	4,003
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 43,789	42,420	36,773	32,332	24,813	10,878
StarStone | Accident Year - 2014 | Property
Liability for Claims and Claims Adjustment Expense [Line Items]
Incurred losses and allocated loss adjustment expenses, net of reinsurance	40,818	41,563	43,603	43,169	43,848	58,975
IBNR losses and loss expenses, net of reinsurance	$ 1,082
Cumulative Number of Claims | claim	2,094
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 37,240	36,106	34,563	31,617	18,830	5,500
StarStone | Accident Year - 2014 | Aerospace
Liability for Claims and Claims Adjustment Expense [Line Items]
Incurred losses and allocated loss adjustment expenses, net of reinsurance	48,657	54,408	52,341	53,553	53,541	65,208
IBNR losses and loss expenses, net of reinsurance	$ 464
Cumulative Number of Claims | claim	2,861
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 43,779	43,801	40,678	38,426	31,147	17,297
StarStone | Accident Year - 2014 | Workers' compensation
Liability for Claims and Claims Adjustment Expense [Line Items]
Incurred losses and allocated loss adjustment expenses, net of reinsurance	14,873	15,203	15,662	18,290	17,199	15,607
IBNR losses and loss expenses, net of reinsurance	$ 1,421
Cumulative Number of Claims | claim	1,062
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 12,617	12,243	11,431	9,279	6,079	1,491
StarStone | Accident Year - 2015 | General casualty
Liability for Claims and Claims Adjustment Expense [Line Items]
Incurred losses and allocated loss adjustment expenses, net of reinsurance	131,156	123,208	110,179	111,067	105,135
IBNR losses and loss expenses, net of reinsurance	$ 22,056
Cumulative Number of Claims | claim	4,744
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 92,327	68,194	49,014	27,292	8,088
StarStone | Accident Year - 2015 | Marine
Liability for Claims and Claims Adjustment Expense [Line Items]
Incurred losses and allocated loss adjustment expenses, net of reinsurance	82,698	81,088	79,494	70,033	71,004
IBNR losses and loss expenses, net of reinsurance	$ 1,082
Cumulative Number of Claims | claim	5,742
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 59,478	56,154	50,062	30,562	10,871
StarStone | Accident Year - 2015 | Property
Liability for Claims and Claims Adjustment Expense [Line Items]
Incurred losses and allocated loss adjustment expenses, net of reinsurance	71,189	70,244	70,359	76,550	78,993
IBNR losses and loss expenses, net of reinsurance	$ 3,964
Cumulative Number of Claims | claim	5,720
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 64,764	63,880	55,372	28,652	10,433
StarStone | Accident Year - 2015 | Aerospace
Liability for Claims and Claims Adjustment Expense [Line Items]
Incurred losses and allocated loss adjustment expenses, net of reinsurance	71,196	73,183	72,519	69,499	66,335
IBNR losses and loss expenses, net of reinsurance	$ 1,318
Cumulative Number of Claims | claim	2,975
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 66,293	64,000	60,820	52,185	32,388
StarStone | Accident Year - 2015 | Workers' compensation
Liability for Claims and Claims Adjustment Expense [Line Items]
Incurred losses and allocated loss adjustment expenses, net of reinsurance	45,812	47,338	50,103	55,505	54,977
IBNR losses and loss expenses, net of reinsurance	$ 4,905
Cumulative Number of Claims | claim	2,522
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 37,385	35,311	30,439	20,194	6,361
StarStone | Accident Year - 2016 | General casualty
Liability for Claims and Claims Adjustment Expense [Line Items]
Incurred losses and allocated loss adjustment expenses, net of reinsurance	169,207	140,601	129,130	125,367
IBNR losses and loss expenses, net of reinsurance	$ 39,548
Cumulative Number of Claims | claim	4,467
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 97,715	74,921	42,935	4,642
StarStone | Accident Year - 2016 | Marine
Liability for Claims and Claims Adjustment Expense [Line Items]
Incurred losses and allocated loss adjustment expenses, net of reinsurance	86,774	87,169	83,070	82,486
IBNR losses and loss expenses, net of reinsurance	$ 4,214
Cumulative Number of Claims | claim	6,904
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 72,475	57,265	41,696	12,131
StarStone | Accident Year - 2016 | Property
Liability for Claims and Claims Adjustment Expense [Line Items]
Incurred losses and allocated loss adjustment expenses, net of reinsurance	95,038	95,151	95,557	87,562
IBNR losses and loss expenses, net of reinsurance	$ 2,672
Cumulative Number of Claims | claim	6,791
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 85,023	75,387	58,035	26,838
StarStone | Accident Year - 2016 | Aerospace
Liability for Claims and Claims Adjustment Expense [Line Items]
Incurred losses and allocated loss adjustment expenses, net of reinsurance	45,380	48,180	45,019	37,741
IBNR losses and loss expenses, net of reinsurance	$ 1,714
Cumulative Number of Claims | claim	2,880
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 39,361	37,037	31,858	11,815
StarStone | Accident Year - 2016 | Workers' compensation
Liability for Claims and Claims Adjustment Expense [Line Items]
Incurred losses and allocated loss adjustment expenses, net of reinsurance	55,150	54,793	54,121	62,942
IBNR losses and loss expenses, net of reinsurance	$ 9,101
Cumulative Number of Claims | claim	2,507
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 39,333	32,739	23,428	7,953
StarStone | Accident Year - 2017 | General casualty
Liability for Claims and Claims Adjustment Expense [Line Items]
Incurred losses and allocated loss adjustment expenses, net of reinsurance	194,259	162,599	137,614
IBNR losses and loss expenses, net of reinsurance	$ 64,639
Cumulative Number of Claims | claim	4,830
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 107,625	50,705	9,997
StarStone | Accident Year - 2017 | Marine
Liability for Claims and Claims Adjustment Expense [Line Items]
Incurred losses and allocated loss adjustment expenses, net of reinsurance	166,042	158,785	130,700
IBNR losses and loss expenses, net of reinsurance	$ 10,802
Cumulative Number of Claims | claim	8,524
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 108,000	68,952	25,258
StarStone | Accident Year - 2017 | Property
Liability for Claims and Claims Adjustment Expense [Line Items]
Incurred losses and allocated loss adjustment expenses, net of reinsurance	183,584	171,665	155,484
IBNR losses and loss expenses, net of reinsurance	$ 6,554
Cumulative Number of Claims | claim	8,034
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 139,555	98,267	37,410
StarStone | Accident Year - 2017 | Aerospace
Liability for Claims and Claims Adjustment Expense [Line Items]
Incurred losses and allocated loss adjustment expenses, net of reinsurance	56,354	35,075	31,380
IBNR losses and loss expenses, net of reinsurance	$ 3,142
Cumulative Number of Claims | claim	3,100
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 45,946	28,221	10,398
StarStone | Accident Year - 2017 | Workers' compensation
Liability for Claims and Claims Adjustment Expense [Line Items]
Incurred losses and allocated loss adjustment expenses, net of reinsurance	29,676	39,089	43,366
IBNR losses and loss expenses, net of reinsurance	$ 6,037
Cumulative Number of Claims | claim	2,110
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 18,899	13,509	5,477
StarStone | Accident Year - 2018 | General casualty
Liability for Claims and Claims Adjustment Expense [Line Items]
Incurred losses and allocated loss adjustment expenses, net of reinsurance	181,499	159,324
IBNR losses and loss expenses, net of reinsurance	$ 90,672
Cumulative Number of Claims | claim	3,902
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 47,973	20,649
StarStone | Accident Year - 2018 | Marine
Liability for Claims and Claims Adjustment Expense [Line Items]
Incurred losses and allocated loss adjustment expenses, net of reinsurance	167,565	167,902
IBNR losses and loss expenses, net of reinsurance	$ 33,836
Cumulative Number of Claims | claim	9,881
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 104,825	41,427
StarStone | Accident Year - 2018 | Property
Liability for Claims and Claims Adjustment Expense [Line Items]
Incurred losses and allocated loss adjustment expenses, net of reinsurance	178,800	165,311
IBNR losses and loss expenses, net of reinsurance	$ 8,433
Cumulative Number of Claims | claim	6,653
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 98,065	59,187
StarStone | Accident Year - 2018 | Aerospace
Liability for Claims and Claims Adjustment Expense [Line Items]
Incurred losses and allocated loss adjustment expenses, net of reinsurance	55,986	59,498
IBNR losses and loss expenses, net of reinsurance	$ 3,980
Cumulative Number of Claims | claim	2,891
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 40,304	25,552
StarStone | Accident Year - 2018 | Workers' compensation
Liability for Claims and Claims Adjustment Expense [Line Items]
Incurred losses and allocated loss adjustment expenses, net of reinsurance	39,247	44,615
IBNR losses and loss expenses, net of reinsurance	$ 13,672
Cumulative Number of Claims | claim	2,820
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 15,064	4,508
StarStone | Accident Year - 2019 | General casualty
Liability for Claims and Claims Adjustment Expense [Line Items]
Incurred losses and allocated loss adjustment expenses, net of reinsurance	198,218
IBNR losses and loss expenses, net of reinsurance	$ 172,437
Cumulative Number of Claims | claim	2,780
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 8,143
StarStone | Accident Year - 2019 | Marine
Liability for Claims and Claims Adjustment Expense [Line Items]
Incurred losses and allocated loss adjustment expenses, net of reinsurance	163,412
IBNR losses and loss expenses, net of reinsurance	$ 86,513
Cumulative Number of Claims | claim	5,219
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 38,252
StarStone | Accident Year - 2019 | Property
Liability for Claims and Claims Adjustment Expense [Line Items]
Incurred losses and allocated loss adjustment expenses, net of reinsurance	122,118
IBNR losses and loss expenses, net of reinsurance	$ 69,922
Cumulative Number of Claims | claim	3,277
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 19,580
StarStone | Accident Year - 2019 | Aerospace
Liability for Claims and Claims Adjustment Expense [Line Items]
Incurred losses and allocated loss adjustment expenses, net of reinsurance	45,483
IBNR losses and loss expenses, net of reinsurance	$ 11,766
Cumulative Number of Claims | claim	1,232
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 23,207
StarStone | Accident Year - 2019 | Workers' compensation
Liability for Claims and Claims Adjustment Expense [Line Items]
Incurred losses and allocated loss adjustment expenses, net of reinsurance	56,754
IBNR losses and loss expenses, net of reinsurance	$ 39,525
Cumulative Number of Claims | claim	2,860
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 6,880
2010 | Non-life Run-off
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	1,092,197
Incurred losses and allocated loss adjustment expenses, net of reinsurance	788,475
IBNR losses and loss expenses, net of reinsurance	$ 42,290
Cumulative Number of Claims | claim	163,994
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 647,169
Liabilities for unpaid losses and allocated LAE, net of reinsurance	141,306
2010 | Non-life Run-off | General casualty
Liability for Claims and Claims Adjustment Expense [Line Items]
Liabilities for unpaid losses and allocated LAE, net of reinsurance	13,409
2010 | Non-life Run-off | Marine, aviation and transit
Liability for Claims and Claims Adjustment Expense [Line Items]
Liabilities for unpaid losses and allocated LAE, net of reinsurance	2,638
2010 | Non-life Run-off | Professional indemnity/Directors & Officers
Liability for Claims and Claims Adjustment Expense [Line Items]
Liabilities for unpaid losses and allocated LAE, net of reinsurance	5,021
2010 | Non-life Run-off | Motor
Liability for Claims and Claims Adjustment Expense [Line Items]
Liabilities for unpaid losses and allocated LAE, net of reinsurance	5,756
2010 | Non-life Run-off | Property
Liability for Claims and Claims Adjustment Expense [Line Items]
Liabilities for unpaid losses and allocated LAE, net of reinsurance	4,058
2010 | Non-life Run-off | Workers' compensation
Liability for Claims and Claims Adjustment Expense [Line Items]
Liabilities for unpaid losses and allocated LAE, net of reinsurance	49,828
2010 | Non-life Run-off | 2009 and Prior
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	1,092,197
Incurred losses and allocated loss adjustment expenses, net of reinsurance	788,475	800,341	800,104	839,798	903,954	929,888	1,012,046	1,058,458	1,044,111	1,086,671
IBNR losses and loss expenses, net of reinsurance	$ 42,290
Cumulative Number of Claims | claim	163,994
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 647,169	630,627	612,530	584,306	567,605	553,769	511,054	428,312	261,446	$ 102,123
2011 | Non-life Run-off
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	596,406
Incurred losses and allocated loss adjustment expenses, net of reinsurance	235,578
IBNR losses and loss expenses, net of reinsurance	$ 23,741
Cumulative Number of Claims | claim	112,875
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 52,664
Liabilities for unpaid losses and allocated LAE, net of reinsurance	182,914
2011 | Non-life Run-off | General casualty
Liability for Claims and Claims Adjustment Expense [Line Items]
Liabilities for unpaid losses and allocated LAE, net of reinsurance	24,072
2011 | Non-life Run-off | Marine, aviation and transit
Liability for Claims and Claims Adjustment Expense [Line Items]
Liabilities for unpaid losses and allocated LAE, net of reinsurance	3,256
2011 | Non-life Run-off | Professional indemnity/Directors & Officers
Liability for Claims and Claims Adjustment Expense [Line Items]
Liabilities for unpaid losses and allocated LAE, net of reinsurance	8,619
2011 | Non-life Run-off | Motor
Liability for Claims and Claims Adjustment Expense [Line Items]
Liabilities for unpaid losses and allocated LAE, net of reinsurance	217
2011 | Non-life Run-off | Property
Liability for Claims and Claims Adjustment Expense [Line Items]
Liabilities for unpaid losses and allocated LAE, net of reinsurance	298
2011 | Non-life Run-off | Workers' compensation
Liability for Claims and Claims Adjustment Expense [Line Items]
Liabilities for unpaid losses and allocated LAE, net of reinsurance	145,975
2011 | Non-life Run-off | 2009 and Prior
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	596,121
Incurred losses and allocated loss adjustment expenses, net of reinsurance	235,348	256,864	270,905	315,912	370,995	424,001	490,822	586,636	621,742
IBNR losses and loss expenses, net of reinsurance	$ 23,721
Cumulative Number of Claims | claim	112,787
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 52,483	27,013	16,751	24,434	15,512	21,874	92,129	97,414	59,906
2011 | Non-life Run-off | Accident Year - 2010
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	285
Incurred losses and allocated loss adjustment expenses, net of reinsurance	142	142	142	140	140	140	141	449	412
IBNR losses and loss expenses, net of reinsurance	$ 0
Cumulative Number of Claims | claim	26
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 142	142	142	140	140	140	140	115	91
2011 | Non-life Run-off | Accident Year - 2011
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	0
Incurred losses and allocated loss adjustment expenses, net of reinsurance	93	86	79	71	61	54	45	36	102
IBNR losses and loss expenses, net of reinsurance	$ 0
Cumulative Number of Claims | claim	19
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 93	86	79	71	61	54	45	36	$ 27
2011 | Non-life Run-off | Accident Year - 2012
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	0
Incurred losses and allocated loss adjustment expenses, net of reinsurance	17	18	17	10	10	10	10	121
IBNR losses and loss expenses, net of reinsurance	$ 0
Cumulative Number of Claims | claim	7
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 17	17	17	10	10	10	10	6
2011 | Non-life Run-off | Accident Year - 2013
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	0
Incurred losses and allocated loss adjustment expenses, net of reinsurance	15	15	15	15	15	43	23
IBNR losses and loss expenses, net of reinsurance	$ 0
Cumulative Number of Claims | claim	16
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 15	15	15	15	15	10	6
2011 | Non-life Run-off | Accident Year - 2014
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	0
Incurred losses and allocated loss adjustment expenses, net of reinsurance	15	18	3	3	3	1
IBNR losses and loss expenses, net of reinsurance	$ 3
Cumulative Number of Claims | claim	14
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 7	4	3	3	3	1
2011 | Non-life Run-off | Accident Year - 2015
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	0
Incurred losses and allocated loss adjustment expenses, net of reinsurance	24	32	(2)	(2)	0
IBNR losses and loss expenses, net of reinsurance	$ 5
Cumulative Number of Claims | claim	1
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 11	3	(2)	(2)	0
2011 | Non-life Run-off | Accident Year - 2016
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	0
Incurred losses and allocated loss adjustment expenses, net of reinsurance	(99)	(110)	(139)	2
IBNR losses and loss expenses, net of reinsurance	$ 8
Cumulative Number of Claims | claim	2
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ (114)	(124)	(153)	2
2011 | Non-life Run-off | Accident Year - 2017
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	0
Incurred losses and allocated loss adjustment expenses, net of reinsurance	15	21	0
IBNR losses and loss expenses, net of reinsurance	$ 2
Cumulative Number of Claims | claim	2
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 6	3	0
2011 | Non-life Run-off | Accident Year - 2018
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	0
Incurred losses and allocated loss adjustment expenses, net of reinsurance	8	7
IBNR losses and loss expenses, net of reinsurance	$ 2
Cumulative Number of Claims | claim	1
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 4	1
2011 | Non-life Run-off | Accident Year - 2019
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	0
Incurred losses and allocated loss adjustment expenses, net of reinsurance	0
IBNR losses and loss expenses, net of reinsurance	$ 0
Cumulative Number of Claims | claim	0
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 0
2012 | Non-life Run-off
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	318,091
Incurred losses and allocated loss adjustment expenses, net of reinsurance	258,398
IBNR losses and loss expenses, net of reinsurance	$ 18,454
Cumulative Number of Claims | claim	47,753
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 201,062
Liabilities for unpaid losses and allocated LAE, net of reinsurance	57,336
2012 | Non-life Run-off | General casualty
Liability for Claims and Claims Adjustment Expense [Line Items]
Liabilities for unpaid losses and allocated LAE, net of reinsurance	12,082
2012 | Non-life Run-off | Marine, aviation and transit
Liability for Claims and Claims Adjustment Expense [Line Items]
Liabilities for unpaid losses and allocated LAE, net of reinsurance	0
2012 | Non-life Run-off | Professional indemnity/Directors & Officers
Liability for Claims and Claims Adjustment Expense [Line Items]
Liabilities for unpaid losses and allocated LAE, net of reinsurance	28,274
2012 | Non-life Run-off | Motor
Liability for Claims and Claims Adjustment Expense [Line Items]
Liabilities for unpaid losses and allocated LAE, net of reinsurance	500
2012 | Non-life Run-off | Property
Liability for Claims and Claims Adjustment Expense [Line Items]
Liabilities for unpaid losses and allocated LAE, net of reinsurance	6,199
2012 | Non-life Run-off | Workers' compensation
Liability for Claims and Claims Adjustment Expense [Line Items]
Liabilities for unpaid losses and allocated LAE, net of reinsurance	3,986
2012 | Non-life Run-off | 2009 and Prior
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	315,850
Incurred losses and allocated loss adjustment expenses, net of reinsurance	252,794	257,947	266,124	273,273	283,244	297,612	306,078	314,772
IBNR losses and loss expenses, net of reinsurance	$ 18,173
Cumulative Number of Claims | claim	47,708
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 197,236	187,091	173,921	163,845	139,542	108,965	67,858	2,754
2012 | Non-life Run-off | Accident Year - 2010
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	831
Incurred losses and allocated loss adjustment expenses, net of reinsurance	1,208	1,242	1,368	2,468	2,400	2,788	3,068	920
IBNR losses and loss expenses, net of reinsurance	$ 64
Cumulative Number of Claims | claim	6
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 801	776	748	712	685	618	463	167
2012 | Non-life Run-off | Accident Year - 2011
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	1,360
Incurred losses and allocated loss adjustment expenses, net of reinsurance	944	944	960	981	1,002	1,081	1,222	1,341
IBNR losses and loss expenses, net of reinsurance	$ 0
Cumulative Number of Claims | claim	5
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 944	944	905	849	792	679	454	110
2012 | Non-life Run-off | Accident Year - 2012
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	50
Incurred losses and allocated loss adjustment expenses, net of reinsurance	152	152	363	371	315	332	45	74
IBNR losses and loss expenses, net of reinsurance	$ 0
Cumulative Number of Claims | claim	6
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 152	152	152	152	47	45	45	$ 28
2012 | Non-life Run-off | Accident Year - 2013
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	0
Incurred losses and allocated loss adjustment expenses, net of reinsurance	124	124	385	396	390	109	866
IBNR losses and loss expenses, net of reinsurance	$ 0
Cumulative Number of Claims | claim	5
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 124	124	124	124	124	109	100
2012 | Non-life Run-off | Accident Year - 2014
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	0
Incurred losses and allocated loss adjustment expenses, net of reinsurance	1,048	1,093	1,189	1,420	2,843	2,736
IBNR losses and loss expenses, net of reinsurance	$ 23
Cumulative Number of Claims | claim	7
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 905	791	617	420	205	62
2012 | Non-life Run-off | Accident Year - 2015
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	0
Incurred losses and allocated loss adjustment expenses, net of reinsurance	676	676	676	1,388	667
IBNR losses and loss expenses, net of reinsurance	$ 0
Cumulative Number of Claims | claim	5
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 676	676	676	107	103
2012 | Non-life Run-off | Accident Year - 2016
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	0
Incurred losses and allocated loss adjustment expenses, net of reinsurance	969	1,019	1,158	61
IBNR losses and loss expenses, net of reinsurance	$ 139
Cumulative Number of Claims | claim	2
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 89	89	51	2
2012 | Non-life Run-off | Accident Year - 2017
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	0
Incurred losses and allocated loss adjustment expenses, net of reinsurance	91	153	69
IBNR losses and loss expenses, net of reinsurance	$ 0
Cumulative Number of Claims | claim	4
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 91	39	12
2012 | Non-life Run-off | Accident Year - 2018
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	0
Incurred losses and allocated loss adjustment expenses, net of reinsurance	141	0
IBNR losses and loss expenses, net of reinsurance	$ 18
Cumulative Number of Claims | claim	1
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 27	0
2012 | Non-life Run-off | Accident Year - 2019
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	0
Incurred losses and allocated loss adjustment expenses, net of reinsurance	251
IBNR losses and loss expenses, net of reinsurance	$ 37
Cumulative Number of Claims | claim	4
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 17
2013 | Non-life Run-off
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	559,357
Incurred losses and allocated loss adjustment expenses, net of reinsurance	601,559
IBNR losses and loss expenses, net of reinsurance	$ 26,233
Cumulative Number of Claims | claim	83,843
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 516,554
Liabilities for unpaid losses and allocated LAE, net of reinsurance	85,005
2013 | Non-life Run-off | General casualty
Liability for Claims and Claims Adjustment Expense [Line Items]
Liabilities for unpaid losses and allocated LAE, net of reinsurance	14,695
2013 | Non-life Run-off | Marine, aviation and transit
Liability for Claims and Claims Adjustment Expense [Line Items]
Liabilities for unpaid losses and allocated LAE, net of reinsurance	0
2013 | Non-life Run-off | Professional indemnity/Directors & Officers
Liability for Claims and Claims Adjustment Expense [Line Items]
Liabilities for unpaid losses and allocated LAE, net of reinsurance	0
2013 | Non-life Run-off | Motor
Liability for Claims and Claims Adjustment Expense [Line Items]
Liabilities for unpaid losses and allocated LAE, net of reinsurance	660
2013 | Non-life Run-off | Property
Liability for Claims and Claims Adjustment Expense [Line Items]
Liabilities for unpaid losses and allocated LAE, net of reinsurance	0
2013 | Non-life Run-off | Workers' compensation
Liability for Claims and Claims Adjustment Expense [Line Items]
Liabilities for unpaid losses and allocated LAE, net of reinsurance	58,316
2013 | Non-life Run-off | 2009 and Prior
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	207,452
Incurred losses and allocated loss adjustment expenses, net of reinsurance	188,416	200,034	212,039	218,082	225,478	233,644	227,635
IBNR losses and loss expenses, net of reinsurance	$ 15,864
Cumulative Number of Claims | claim	44,881
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 140,814	136,898	129,803	128,474	109,918	84,422	48,802
2013 | Non-life Run-off | Accident Year - 2010
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	110,795
Incurred losses and allocated loss adjustment expenses, net of reinsurance	122,441	123,802	125,148	135,364	133,289	117,915	118,652
IBNR losses and loss expenses, net of reinsurance	$ 4,635
Cumulative Number of Claims | claim	11,537
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 105,873	105,023	98,341	92,782	75,351	48,783	24,752
2013 | Non-life Run-off | Accident Year - 2011
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	96,929
Incurred losses and allocated loss adjustment expenses, net of reinsurance	85,920	86,403	87,913	95,848	100,243	100,482	102,288
IBNR losses and loss expenses, net of reinsurance	$ 2,218
Cumulative Number of Claims | claim	11,175
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 79,113	77,290	75,055	70,498	63,952	52,455	30,323
2013 | Non-life Run-off | Accident Year - 2012
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	131,119
Incurred losses and allocated loss adjustment expenses, net of reinsurance	108,025	107,853	110,045	114,772	118,085	121,364	127,323
IBNR losses and loss expenses, net of reinsurance	$ 2,090
Cumulative Number of Claims | claim	10,420
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 99,781	96,780	92,445	86,916	74,663	59,095	33,361
2013 | Non-life Run-off | Accident Year - 2013
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	13,062
Incurred losses and allocated loss adjustment expenses, net of reinsurance	80,091	80,036	81,732	85,791	88,920	91,634	90,739
IBNR losses and loss expenses, net of reinsurance	$ 1,277
Cumulative Number of Claims | claim	5,649
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 74,556	71,487	68,866	62,876	52,638	37,653	$ 17,022
2013 | Non-life Run-off | Accident Year - 2014
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	0
Incurred losses and allocated loss adjustment expenses, net of reinsurance	16,304	16,225	16,800	3,425	3,714	4,514
IBNR losses and loss expenses, net of reinsurance	$ 90
Cumulative Number of Claims | claim	175
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 16,123	15,959	15,804	2,256	1,747	993
2013 | Non-life Run-off | Accident Year - 2015
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	0
Incurred losses and allocated loss adjustment expenses, net of reinsurance	250	329	982	280	265
IBNR losses and loss expenses, net of reinsurance	$ 54
Cumulative Number of Claims | claim	2
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 190	165	112	102	43
2013 | Non-life Run-off | Accident Year - 2016
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	0
Incurred losses and allocated loss adjustment expenses, net of reinsurance	69	70	71	103
IBNR losses and loss expenses, net of reinsurance	$ 2
Cumulative Number of Claims | claim	1
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 66	65	64	34
2013 | Non-life Run-off | Accident Year - 2017
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	0
Incurred losses and allocated loss adjustment expenses, net of reinsurance	13	13	30
IBNR losses and loss expenses, net of reinsurance	$ 0
Cumulative Number of Claims | claim	1
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 13	13	9
2013 | Non-life Run-off | Accident Year - 2018
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	0
Incurred losses and allocated loss adjustment expenses, net of reinsurance	17	22
IBNR losses and loss expenses, net of reinsurance	$ 0
Cumulative Number of Claims | claim	1
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 17	13
2013 | Non-life Run-off | Accident Year - 2019
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	0
Incurred losses and allocated loss adjustment expenses, net of reinsurance	13
IBNR losses and loss expenses, net of reinsurance	$ 3
Cumulative Number of Claims | claim	1
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 8
2014 | Non-life Run-off
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	443,507
Incurred losses and allocated loss adjustment expenses, net of reinsurance	563,976
IBNR losses and loss expenses, net of reinsurance	$ 48,430
Cumulative Number of Claims | claim	29,169
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 464,142
Liabilities for unpaid losses and allocated LAE, net of reinsurance	99,834
2014 | Non-life Run-off | General casualty
Liability for Claims and Claims Adjustment Expense [Line Items]
Liabilities for unpaid losses and allocated LAE, net of reinsurance	30,313
2014 | Non-life Run-off | Marine, aviation and transit
Liability for Claims and Claims Adjustment Expense [Line Items]
Liabilities for unpaid losses and allocated LAE, net of reinsurance	13,762
2014 | Non-life Run-off | Professional indemnity/Directors & Officers
Liability for Claims and Claims Adjustment Expense [Line Items]
Liabilities for unpaid losses and allocated LAE, net of reinsurance	35,795
2014 | Non-life Run-off | Motor
Liability for Claims and Claims Adjustment Expense [Line Items]
Liabilities for unpaid losses and allocated LAE, net of reinsurance	250
2014 | Non-life Run-off | Property
Liability for Claims and Claims Adjustment Expense [Line Items]
Liabilities for unpaid losses and allocated LAE, net of reinsurance	14,127
2014 | Non-life Run-off | Workers' compensation
Liability for Claims and Claims Adjustment Expense [Line Items]
Liabilities for unpaid losses and allocated LAE, net of reinsurance	0
2014 | Non-life Run-off | 2009 and Prior
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	37,554
Incurred losses and allocated loss adjustment expenses, net of reinsurance	19,229	21,089	22,105	20,933	23,192	33,315
IBNR losses and loss expenses, net of reinsurance	$ 72
Cumulative Number of Claims | claim	6,363
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 16,934	16,884	16,337	15,652	13,090	7,044
2014 | Non-life Run-off | Accident Year - 2010
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	104,408
Incurred losses and allocated loss adjustment expenses, net of reinsurance	122,063	115,341	119,430	133,784	100,345	100,017
IBNR losses and loss expenses, net of reinsurance	$ 10,628
Cumulative Number of Claims | claim	6,454
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 103,753	102,128	102,138	87,233	69,414	29,424
2014 | Non-life Run-off | Accident Year - 2011
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	73,942
Incurred losses and allocated loss adjustment expenses, net of reinsurance	143,664	140,845	135,540	133,521	153,910	128,979
IBNR losses and loss expenses, net of reinsurance	$ 9,369
Cumulative Number of Claims | claim	6,693
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 126,650	120,564	113,406	110,338	109,574	84,042
2014 | Non-life Run-off | Accident Year - 2012
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	140,683
Incurred losses and allocated loss adjustment expenses, net of reinsurance	162,068	165,223	178,247	185,261	177,122	146,060
IBNR losses and loss expenses, net of reinsurance	$ 11,175
Cumulative Number of Claims | claim	5,086
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 132,508	127,958	128,692	119,807	89,618	47,495
2014 | Non-life Run-off | Accident Year - 2013
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	86,920
Incurred losses and allocated loss adjustment expenses, net of reinsurance	84,590	86,393	86,798	82,344	93,936	75,762
IBNR losses and loss expenses, net of reinsurance	$ 13,971
Cumulative Number of Claims | claim	3,171
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 62,009	63,256	55,882	47,537	40,237	21,752
2014 | Non-life Run-off | Accident Year - 2014
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	0
Incurred losses and allocated loss adjustment expenses, net of reinsurance	5,589	5,765	7,420	13,817	9,503	12,826
IBNR losses and loss expenses, net of reinsurance	$ 1,731
Cumulative Number of Claims | claim	1,113
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 7,671	5,994	3,975	3,280	2,494	$ 1,462
2014 | Non-life Run-off | Accident Year - 2015
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	0
Incurred losses and allocated loss adjustment expenses, net of reinsurance	17,799	18,616	20,709	15,529	33,545
IBNR losses and loss expenses, net of reinsurance	$ 73
Cumulative Number of Claims | claim	186
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 12,774	13,487	11,465	4,295	1,739
2014 | Non-life Run-off | Accident Year - 2016
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	0
Incurred losses and allocated loss adjustment expenses, net of reinsurance	773	4,607	1,075	330
IBNR losses and loss expenses, net of reinsurance	$ 89
Cumulative Number of Claims | claim	44
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 601	571	556	20
2014 | Non-life Run-off | Accident Year - 2017
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	0
Incurred losses and allocated loss adjustment expenses, net of reinsurance	8,196	3,920	5,074
IBNR losses and loss expenses, net of reinsurance	$ 423
Cumulative Number of Claims | claim	37
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 1,237	1,553	537
2014 | Non-life Run-off | Accident Year - 2018
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	0
Incurred losses and allocated loss adjustment expenses, net of reinsurance	5	6
IBNR losses and loss expenses, net of reinsurance	$ 0
Cumulative Number of Claims | claim	17
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 5	5
2014 | Non-life Run-off | Accident Year - 2019
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	0
Incurred losses and allocated loss adjustment expenses, net of reinsurance	0
IBNR losses and loss expenses, net of reinsurance	$ 899
Cumulative Number of Claims | claim	5
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 0
2015
Liability for Claims and Claims Adjustment Expense [Line Items]
Incurred losses and allocated loss adjustment expenses, net of reinsurance					69,067
2015 | Non-life Run-off
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	1,700,879
Incurred losses and allocated loss adjustment expenses, net of reinsurance	1,263,072
IBNR losses and loss expenses, net of reinsurance	$ 145,858
Cumulative Number of Claims | claim	65,168
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 809,717
Liabilities for unpaid losses and allocated LAE, net of reinsurance	453,355
2015 | Non-life Run-off | General casualty
Liability for Claims and Claims Adjustment Expense [Line Items]
Liabilities for unpaid losses and allocated LAE, net of reinsurance	46,838
2015 | Non-life Run-off | Marine, aviation and transit
Liability for Claims and Claims Adjustment Expense [Line Items]
Liabilities for unpaid losses and allocated LAE, net of reinsurance	1,589
2015 | Non-life Run-off | Professional indemnity/Directors & Officers
Liability for Claims and Claims Adjustment Expense [Line Items]
Liabilities for unpaid losses and allocated LAE, net of reinsurance	0
2015 | Non-life Run-off | Motor
Liability for Claims and Claims Adjustment Expense [Line Items]
Liabilities for unpaid losses and allocated LAE, net of reinsurance	14,785
2015 | Non-life Run-off | Property
Liability for Claims and Claims Adjustment Expense [Line Items]
Liabilities for unpaid losses and allocated LAE, net of reinsurance	3,581
2015 | Non-life Run-off | Workers' compensation
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	1,382,732
Incurred losses and allocated loss adjustment expenses, net of reinsurance	813,976
IBNR losses and loss expenses, net of reinsurance	$ 67,228
Cumulative Number of Claims | claim	20,651
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 482,593
Liabilities for unpaid losses and allocated LAE, net of reinsurance	331,383
2015 | Non-life Run-off | 2009 and Prior
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	953,149
Incurred losses and allocated loss adjustment expenses, net of reinsurance	467,530	508,471	536,452	585,616	877,641
IBNR losses and loss expenses, net of reinsurance	$ 51,305
Cumulative Number of Claims | claim	11,285
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 165,931	140,691	114,682	67,899	23,605
2015 | Non-life Run-off | 2009 and Prior | Workers' compensation
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	921,259
Incurred losses and allocated loss adjustment expenses, net of reinsurance	418,931	462,612	488,356	538,290	834,148
IBNR losses and loss expenses, net of reinsurance	$ 43,677
Cumulative Number of Claims | claim	8,129
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 137,417	115,884	96,000	56,563	16,278
2015 | Non-life Run-off | Accident Year - 2010
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	49,049
Incurred losses and allocated loss adjustment expenses, net of reinsurance	49,031	51,348	55,761	52,889	53,914
IBNR losses and loss expenses, net of reinsurance	$ 6,860
Cumulative Number of Claims | claim	2,349
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 28,455	25,625	19,665	15,301	9,191
2015 | Non-life Run-off | Accident Year - 2010 | Workers' compensation
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	31,919
Incurred losses and allocated loss adjustment expenses, net of reinsurance	26,913	27,922	30,407	31,402	34,360
IBNR losses and loss expenses, net of reinsurance	$ 1,877
Cumulative Number of Claims | claim	471
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 17,912	16,141	11,906	8,446	4,352
2015 | Non-life Run-off | Accident Year - 2011
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	124,400
Incurred losses and allocated loss adjustment expenses, net of reinsurance	127,673	127,098	129,386	130,994	137,102
IBNR losses and loss expenses, net of reinsurance	$ 18,940
Cumulative Number of Claims | claim	5,379
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 97,842	86,324	70,975	55,077	33,826
2015 | Non-life Run-off | Accident Year - 2011 | Workers' compensation
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	76,789
Incurred losses and allocated loss adjustment expenses, net of reinsurance	67,236	66,781	68,013	69,009	73,723
IBNR losses and loss expenses, net of reinsurance	$ 5,836
Cumulative Number of Claims | claim	1,238
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 55,595	50,470	39,635	30,462	16,032
2015 | Non-life Run-off | Accident Year - 2012
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	178,936
Incurred losses and allocated loss adjustment expenses, net of reinsurance	192,338	192,896	200,749	197,716	187,288
IBNR losses and loss expenses, net of reinsurance	$ 23,706
Cumulative Number of Claims | claim	4,714
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 158,417	142,165	119,382	94,767	52,728
2015 | Non-life Run-off | Accident Year - 2012 | Workers' compensation
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	120,298
Incurred losses and allocated loss adjustment expenses, net of reinsurance	98,532	100,187	106,625	108,251	110,007
IBNR losses and loss expenses, net of reinsurance	$ 5,774
Cumulative Number of Claims | claim	1,804
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 88,369	79,367	66,092	52,851	25,103
2015 | Non-life Run-off | Accident Year - 2013
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	229,182
Incurred losses and allocated loss adjustment expenses, net of reinsurance	184,189	188,572	199,593	196,205	189,430
IBNR losses and loss expenses, net of reinsurance	$ 16,027
Cumulative Number of Claims | claim	5,182
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 159,626	145,659	120,429	89,868	46,761
2015 | Non-life Run-off | Accident Year - 2013 | Workers' compensation
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	146,237
Incurred losses and allocated loss adjustment expenses, net of reinsurance	112,199	113,056	121,010	122,238	124,726
IBNR losses and loss expenses, net of reinsurance	$ 6,789
Cumulative Number of Claims | claim	2,379
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 100,890	91,559	75,065	55,675	27,737
2015 | Non-life Run-off | Accident Year - 2014
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	143,623
Incurred losses and allocated loss adjustment expenses, net of reinsurance	151,243	136,403	142,332	137,061	142,425
IBNR losses and loss expenses, net of reinsurance	$ 18,617
Cumulative Number of Claims | claim	10,707
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 125,226	109,149	90,738	64,353	30,747
2015 | Non-life Run-off | Accident Year - 2014 | Workers' compensation
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	82,141
Incurred losses and allocated loss adjustment expenses, net of reinsurance	78,457	78,389	83,095	82,038	86,852
IBNR losses and loss expenses, net of reinsurance	$ 2,633
Cumulative Number of Claims | claim	3,680
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 72,696	65,561	53,308	38,051	17,824
2015 | Non-life Run-off | Accident Year - 2015
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	22,540
Incurred losses and allocated loss adjustment expenses, net of reinsurance	68,388	63,776	65,243	68,034
IBNR losses and loss expenses, net of reinsurance	$ 5,125
Cumulative Number of Claims | claim	21,014
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 59,247	51,315	46,067	38,193	20,653
2015 | Non-life Run-off | Accident Year - 2015 | Workers' compensation
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	4,089
Incurred losses and allocated loss adjustment expenses, net of reinsurance	11,125	12,295	13,488	12,623	18,647
IBNR losses and loss expenses, net of reinsurance	$ 545
Cumulative Number of Claims | claim	2,900
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 9,248	9,169	7,917	5,672	$ 3,034
2015 | Non-life Run-off | Accident Year - 2016
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	0
Incurred losses and allocated loss adjustment expenses, net of reinsurance	13,837	12,750	12,504	14,172
IBNR losses and loss expenses, net of reinsurance	$ 2,053
Cumulative Number of Claims | claim	3,365
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 9,405	8,298	7,038	5,325
2015 | Non-life Run-off | Accident Year - 2016 | Workers' compensation
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	0
Incurred losses and allocated loss adjustment expenses, net of reinsurance	536	583	955	873
IBNR losses and loss expenses, net of reinsurance	$ 72
Cumulative Number of Claims | claim	38
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 447	417	363	134
2015 | Non-life Run-off | Accident Year - 2017
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	0
Incurred losses and allocated loss adjustment expenses, net of reinsurance	5,194	4,497	4,056
IBNR losses and loss expenses, net of reinsurance	$ 453
Cumulative Number of Claims | claim	900
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 4,691	3,909	2,311
2015 | Non-life Run-off | Accident Year - 2017 | Workers' compensation
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	0
Incurred losses and allocated loss adjustment expenses, net of reinsurance	41	61	358
IBNR losses and loss expenses, net of reinsurance	$ 21
Cumulative Number of Claims | claim	10
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 18	10	2
2015 | Non-life Run-off | Accident Year - 2018
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	0
Incurred losses and allocated loss adjustment expenses, net of reinsurance	1,845	2,965
IBNR losses and loss expenses, net of reinsurance	$ 997
Cumulative Number of Claims | claim	270
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 835	558
2015 | Non-life Run-off | Accident Year - 2018 | Workers' compensation
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	0
Incurred losses and allocated loss adjustment expenses, net of reinsurance	5	0
IBNR losses and loss expenses, net of reinsurance	$ 3
Cumulative Number of Claims | claim	1
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 1	0
2015 | Non-life Run-off | Accident Year - 2019
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	0
Incurred losses and allocated loss adjustment expenses, net of reinsurance	1,804
IBNR losses and loss expenses, net of reinsurance	$ 1,775
Cumulative Number of Claims | claim	3
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 42
2015 | Non-life Run-off | Accident Year - 2019 | Workers' compensation
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	0
Incurred losses and allocated loss adjustment expenses, net of reinsurance	1
IBNR losses and loss expenses, net of reinsurance	$ 0
Cumulative Number of Claims | claim	1
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 0
2016 | Non-life Run-off
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	1,328,069
Incurred losses and allocated loss adjustment expenses, net of reinsurance	1,346,245
IBNR losses and loss expenses, net of reinsurance	$ 314,793
Cumulative Number of Claims | claim	25,325
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 461,069
Liabilities for unpaid losses and allocated LAE, net of reinsurance	885,176
2016 | Non-life Run-off | General casualty
Liability for Claims and Claims Adjustment Expense [Line Items]
Liabilities for unpaid losses and allocated LAE, net of reinsurance	5,389
2016 | Non-life Run-off | Marine, aviation and transit
Liability for Claims and Claims Adjustment Expense [Line Items]
Liabilities for unpaid losses and allocated LAE, net of reinsurance	0
2016 | Non-life Run-off | Professional indemnity/Directors & Officers
Liability for Claims and Claims Adjustment Expense [Line Items]
Liabilities for unpaid losses and allocated LAE, net of reinsurance	77,685
2016 | Non-life Run-off | Motor
Liability for Claims and Claims Adjustment Expense [Line Items]
Liabilities for unpaid losses and allocated LAE, net of reinsurance	203
2016 | Non-life Run-off | Property
Liability for Claims and Claims Adjustment Expense [Line Items]
Liabilities for unpaid losses and allocated LAE, net of reinsurance	0
2016 | Non-life Run-off | Workers' compensation
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	465,906
Incurred losses and allocated loss adjustment expenses, net of reinsurance	410,152
IBNR losses and loss expenses, net of reinsurance	$ 32,956
Cumulative Number of Claims | claim	10,499
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 143,220
Liabilities for unpaid losses and allocated LAE, net of reinsurance	266,932
2016 | Non-life Run-off | 2009 and Prior
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	1,263,726
Incurred losses and allocated loss adjustment expenses, net of reinsurance	1,287,000	1,282,385	1,302,307	1,274,524
IBNR losses and loss expenses, net of reinsurance	$ 303,592
Cumulative Number of Claims | claim	22,892
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 428,904	317,309	213,509	96,937
2016 | Non-life Run-off | 2009 and Prior | Workers' compensation
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	413,381
Incurred losses and allocated loss adjustment expenses, net of reinsurance	362,905	369,093	377,285	412,474
IBNR losses and loss expenses, net of reinsurance	$ 26,747
Cumulative Number of Claims | claim	9,092
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 117,191	83,273	59,725	33,610
2016 | Non-life Run-off | Accident Year - 2010
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	32,571
Incurred losses and allocated loss adjustment expenses, net of reinsurance	25,710	28,093	32,866	32,451
IBNR losses and loss expenses, net of reinsurance	$ 5,047
Cumulative Number of Claims | claim	706
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 14,236	10,001	7,111	2,757
2016 | Non-life Run-off | Accident Year - 2010 | Workers' compensation
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	24,075
Incurred losses and allocated loss adjustment expenses, net of reinsurance	19,541	22,383	26,034	25,330
IBNR losses and loss expenses, net of reinsurance	$ 3,660
Cumulative Number of Claims | claim	323
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 9,891	7,326	5,539	1,908
2016 | Non-life Run-off | Accident Year - 2011
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	17,291
Incurred losses and allocated loss adjustment expenses, net of reinsurance	18,829	19,754	19,920	17,291
IBNR losses and loss expenses, net of reinsurance	$ 2,830
Cumulative Number of Claims | claim	789
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 9,691	8,218	6,647	2,758
2016 | Non-life Run-off | Accident Year - 2011 | Workers' compensation
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	15,376
Incurred losses and allocated loss adjustment expenses, net of reinsurance	16,327	16,501	16,399	15,376
IBNR losses and loss expenses, net of reinsurance	$ 1,456
Cumulative Number of Claims | claim	476
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 8,756	7,305	5,871	2,631
2016 | Non-life Run-off | Accident Year - 2012
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	13,717
Incurred losses and allocated loss adjustment expenses, net of reinsurance	12,717	14,765	17,020	13,717
IBNR losses and loss expenses, net of reinsurance	$ 2,012
Cumulative Number of Claims | claim	776
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 7,587	6,461	5,206	2,734
2016 | Non-life Run-off | Accident Year - 2012 | Workers' compensation
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	13,074
Incurred losses and allocated loss adjustment expenses, net of reinsurance	11,379	13,276	15,465	13,074
IBNR losses and loss expenses, net of reinsurance	$ 1,093
Cumulative Number of Claims | claim	608
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 7,382	6,247	5,028	2,638
2016 | Non-life Run-off | Accident Year - 2013
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	373
Incurred losses and allocated loss adjustment expenses, net of reinsurance	1,120	1,237	1,312	373
IBNR losses and loss expenses, net of reinsurance	$ 827
Cumulative Number of Claims | claim	112
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 285	278	191	145
2016 | Non-life Run-off | Accident Year - 2013 | Workers' compensation
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	0
Incurred losses and allocated loss adjustment expenses, net of reinsurance	0	0	0	0
IBNR losses and loss expenses, net of reinsurance	$ 0
Cumulative Number of Claims | claim	0
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 0	0	0	0
2016 | Non-life Run-off | Accident Year - 2014
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	391
Incurred losses and allocated loss adjustment expenses, net of reinsurance	869	1,056	1,380	391
IBNR losses and loss expenses, net of reinsurance	$ 485
Cumulative Number of Claims | claim	50
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 366	284	207	178
2016 | Non-life Run-off | Accident Year - 2014 | Workers' compensation
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	0
Incurred losses and allocated loss adjustment expenses, net of reinsurance	0	0	0	0
IBNR losses and loss expenses, net of reinsurance	$ 0
Cumulative Number of Claims | claim	0
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 0	0	0	0
2016 | Non-life Run-off | Accident Year - 2015
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	0
Incurred losses and allocated loss adjustment expenses, net of reinsurance	0	0	0	0
IBNR losses and loss expenses, net of reinsurance	$ 0
Cumulative Number of Claims | claim	0
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 0	0	0	0
2016 | Non-life Run-off | Accident Year - 2015 | Workers' compensation
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	0
Incurred losses and allocated loss adjustment expenses, net of reinsurance	0	0	0	0
IBNR losses and loss expenses, net of reinsurance	$ 0
Cumulative Number of Claims | claim	0
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 0	0	0	0
2016 | Non-life Run-off | Accident Year - 2016
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	0
Incurred losses and allocated loss adjustment expenses, net of reinsurance	0	0	0	0
IBNR losses and loss expenses, net of reinsurance	$ 0
Cumulative Number of Claims | claim	0
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 0	0	0	0
2016 | Non-life Run-off | Accident Year - 2016 | Workers' compensation
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	0
Incurred losses and allocated loss adjustment expenses, net of reinsurance	0	0	0	0
IBNR losses and loss expenses, net of reinsurance	$ 0
Cumulative Number of Claims | claim	0
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 0	0	0	$ 0
2016 | Non-life Run-off | Accident Year - 2017
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	0
Incurred losses and allocated loss adjustment expenses, net of reinsurance	0	0	0
IBNR losses and loss expenses, net of reinsurance	$ 0
Cumulative Number of Claims | claim	0
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 0	0	0
2016 | Non-life Run-off | Accident Year - 2017 | Workers' compensation
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	0
Incurred losses and allocated loss adjustment expenses, net of reinsurance	0	0	0
IBNR losses and loss expenses, net of reinsurance	$ 0
Cumulative Number of Claims | claim	0
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 0	0	0
2016 | Non-life Run-off | Accident Year - 2018
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	0
Incurred losses and allocated loss adjustment expenses, net of reinsurance	0	0
IBNR losses and loss expenses, net of reinsurance	$ 0
Cumulative Number of Claims | claim	0
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 0	0
2016 | Non-life Run-off | Accident Year - 2018 | Workers' compensation
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	0
Incurred losses and allocated loss adjustment expenses, net of reinsurance	0	0
IBNR losses and loss expenses, net of reinsurance	$ 0
Cumulative Number of Claims | claim	0
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 0	0
2016 | Non-life Run-off | Accident Year - 2019
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	0
Incurred losses and allocated loss adjustment expenses, net of reinsurance	0
IBNR losses and loss expenses, net of reinsurance	$ 0
Cumulative Number of Claims | claim	0
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 0
2016 | Non-life Run-off | Accident Year - 2019 | Workers' compensation
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	0
Incurred losses and allocated loss adjustment expenses, net of reinsurance	0
IBNR losses and loss expenses, net of reinsurance	$ 0
Cumulative Number of Claims | claim	0
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 0
2017 | Non-life Run-off
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	1,638,437
Incurred losses and allocated loss adjustment expenses, net of reinsurance	1,439,218
IBNR losses and loss expenses, net of reinsurance	$ 804,563
Cumulative Number of Claims | claim	11,578
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 322,273
Liabilities for unpaid losses and allocated LAE, net of reinsurance	1,116,945
2017 | Non-life Run-off | General casualty
Liability for Claims and Claims Adjustment Expense [Line Items]
Liabilities for unpaid losses and allocated LAE, net of reinsurance	59,432
2017 | Non-life Run-off | Marine, aviation and transit
Liability for Claims and Claims Adjustment Expense [Line Items]
Liabilities for unpaid losses and allocated LAE, net of reinsurance	81,037
2017 | Non-life Run-off | Professional indemnity/Directors & Officers
Liability for Claims and Claims Adjustment Expense [Line Items]
Liabilities for unpaid losses and allocated LAE, net of reinsurance	0
2017 | Non-life Run-off | Motor
Liability for Claims and Claims Adjustment Expense [Line Items]
Liabilities for unpaid losses and allocated LAE, net of reinsurance	4,453
2017 | Non-life Run-off | Property
Liability for Claims and Claims Adjustment Expense [Line Items]
Liabilities for unpaid losses and allocated LAE, net of reinsurance	455
2017 | Non-life Run-off | Workers' compensation
Liability for Claims and Claims Adjustment Expense [Line Items]
Liabilities for unpaid losses and allocated LAE, net of reinsurance	73,069
2017 | Non-life Run-off | 2009 and Prior
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	1,449,663
Incurred losses and allocated loss adjustment expenses, net of reinsurance	1,313,517	1,304,002	1,374,191
IBNR losses and loss expenses, net of reinsurance	$ 776,522
Cumulative Number of Claims | claim	11,481
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 243,621	165,471	80,189
2017 | Non-life Run-off | Accident Year - 2010
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	34,561
Incurred losses and allocated loss adjustment expenses, net of reinsurance	21,021	18,908	28,737
IBNR losses and loss expenses, net of reinsurance	$ 8,209
Cumulative Number of Claims | claim	36
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 9,121	7,394	4,287
2017 | Non-life Run-off | Accident Year - 2011
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	36,184
Incurred losses and allocated loss adjustment expenses, net of reinsurance	27,315	25,390	29,273
IBNR losses and loss expenses, net of reinsurance	$ 8,573
Cumulative Number of Claims | claim	7
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 12,971	9,257	4,125
2017 | Non-life Run-off | Accident Year - 2012
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	39,449
Incurred losses and allocated loss adjustment expenses, net of reinsurance	29,452	31,240	35,467
IBNR losses and loss expenses, net of reinsurance	$ 6,389
Cumulative Number of Claims | claim	11
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 18,603	15,371	10,348
2017 | Non-life Run-off | Accident Year - 2013
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	36,320
Incurred losses and allocated loss adjustment expenses, net of reinsurance	24,703	28,140	30,335
IBNR losses and loss expenses, net of reinsurance	$ 1,242
Cumulative Number of Claims | claim	11
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 21,277	15,711	9,508
2017 | Non-life Run-off | Accident Year - 2014
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	31,474
Incurred losses and allocated loss adjustment expenses, net of reinsurance	15,996	16,984	20,315
IBNR losses and loss expenses, net of reinsurance	$ 2,195
Cumulative Number of Claims | claim	20
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 11,559	8,987	6,482
2017 | Non-life Run-off | Accident Year - 2015
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	9,207
Incurred losses and allocated loss adjustment expenses, net of reinsurance	6,295	7,002	6,494
IBNR losses and loss expenses, net of reinsurance	$ 931
Cumulative Number of Claims | claim	8
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 4,687	3,720	1,361
2017 | Non-life Run-off | Accident Year - 2016
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	1,484
Incurred losses and allocated loss adjustment expenses, net of reinsurance	919	125	(4)
IBNR losses and loss expenses, net of reinsurance	$ 86
Cumulative Number of Claims | claim	3
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 434	66	(56)
2017 | Non-life Run-off | Accident Year - 2017
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	95
Incurred losses and allocated loss adjustment expenses, net of reinsurance	0	0	174
IBNR losses and loss expenses, net of reinsurance	$ 416
Cumulative Number of Claims | claim	1
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 0	0	$ 4
2017 | Non-life Run-off | Accident Year - 2018
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	0
Incurred losses and allocated loss adjustment expenses, net of reinsurance	0	0
IBNR losses and loss expenses, net of reinsurance	$ 0
Cumulative Number of Claims | claim	0
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 0	0
2017 | Non-life Run-off | Accident Year - 2019
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	0
Incurred losses and allocated loss adjustment expenses, net of reinsurance	0
IBNR losses and loss expenses, net of reinsurance	$ 0
Cumulative Number of Claims | claim	0
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 0
2018 | Non-life Run-off
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	2,751,222
Incurred losses and allocated loss adjustment expenses, net of reinsurance	2,683,738
IBNR losses and loss expenses, net of reinsurance	$ 656,367
Cumulative Number of Claims | claim	323,179
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 959,547
Liabilities for unpaid losses and allocated LAE, net of reinsurance	1,724,191
2018 | Non-life Run-off | General casualty
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	472,954
Incurred losses and allocated loss adjustment expenses, net of reinsurance	454,549
IBNR losses and loss expenses, net of reinsurance	$ 125,668
Cumulative Number of Claims | claim	58,661
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 149,179
Liabilities for unpaid losses and allocated LAE, net of reinsurance	305,370
2018 | Non-life Run-off | Marine, aviation and transit
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	186,961
Incurred losses and allocated loss adjustment expenses, net of reinsurance	218,425
IBNR losses and loss expenses, net of reinsurance	$ 18,388
Cumulative Number of Claims | claim	86,679
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 78,517
Liabilities for unpaid losses and allocated LAE, net of reinsurance	139,908
2018 | Non-life Run-off | Professional indemnity/Directors & Officers
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	512,535
Incurred losses and allocated loss adjustment expenses, net of reinsurance	500,560
IBNR losses and loss expenses, net of reinsurance	$ 68,298
Cumulative Number of Claims | claim	74,349
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 174,403
Liabilities for unpaid losses and allocated LAE, net of reinsurance	326,157
2018 | Non-life Run-off | Motor
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	835,900
Incurred losses and allocated loss adjustment expenses, net of reinsurance	787,325
IBNR losses and loss expenses, net of reinsurance	$ 153,361
Cumulative Number of Claims | claim	15,493
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 380,780
Liabilities for unpaid losses and allocated LAE, net of reinsurance	406,545
2018 | Non-life Run-off | Property
Liability for Claims and Claims Adjustment Expense [Line Items]
Liabilities for unpaid losses and allocated LAE, net of reinsurance	66,755
2018 | Non-life Run-off | Workers' compensation
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	493,222
Incurred losses and allocated loss adjustment expenses, net of reinsurance	485,995
IBNR losses and loss expenses, net of reinsurance	$ 201,526
Cumulative Number of Claims | claim	9,763
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 100,772
Liabilities for unpaid losses and allocated LAE, net of reinsurance	385,223
2018 | Non-life Run-off | 2009 and Prior
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	559,105
Incurred losses and allocated loss adjustment expenses, net of reinsurance	355,392	383,948
IBNR losses and loss expenses, net of reinsurance	$ 106,822
Cumulative Number of Claims | claim	209,846
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 36,359	41,953
2018 | Non-life Run-off | 2009 and Prior | General casualty
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	97,189
Incurred losses and allocated loss adjustment expenses, net of reinsurance	42,901	48,898
IBNR losses and loss expenses, net of reinsurance	$ 3,969
Cumulative Number of Claims | claim	45,895
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 7,146	3,496
2018 | Non-life Run-off | 2009 and Prior | Marine, aviation and transit
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	26,321
Incurred losses and allocated loss adjustment expenses, net of reinsurance	20,641	28,798
IBNR losses and loss expenses, net of reinsurance	$ (1,842)
Cumulative Number of Claims | claim	57,002
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ (3,789)	3,211
2018 | Non-life Run-off | 2009 and Prior | Professional indemnity/Directors & Officers
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	200,658
Incurred losses and allocated loss adjustment expenses, net of reinsurance	100,687	92,577
IBNR losses and loss expenses, net of reinsurance	$ (1,316)
Cumulative Number of Claims | claim	52,393
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 33,585	24,232
2018 | Non-life Run-off | 2009 and Prior | Motor
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	17,648
Incurred losses and allocated loss adjustment expenses, net of reinsurance	10,781	15,490
IBNR losses and loss expenses, net of reinsurance	$ (291)
Cumulative Number of Claims | claim	356
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 5,112	2,398
2018 | Non-life Run-off | 2009 and Prior | Workers' compensation
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	106,230
Incurred losses and allocated loss adjustment expenses, net of reinsurance	108,435	101,016
IBNR losses and loss expenses, net of reinsurance	$ 30,391
Cumulative Number of Claims | claim	1,742
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 10,643	3,633
2018 | Non-life Run-off | Accident Year - 2010
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	88,147
Incurred losses and allocated loss adjustment expenses, net of reinsurance	94,273	108,810
IBNR losses and loss expenses, net of reinsurance	$ 23,039
Cumulative Number of Claims | claim	13,799
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 23,761	11,109
2018 | Non-life Run-off | Accident Year - 2010 | General casualty
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	30,895
Incurred losses and allocated loss adjustment expenses, net of reinsurance	23,059	23,086
IBNR losses and loss expenses, net of reinsurance	$ 7,004
Cumulative Number of Claims | claim	1,885
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 7,835	5,345
2018 | Non-life Run-off | Accident Year - 2010 | Marine, aviation and transit
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	3,324
Incurred losses and allocated loss adjustment expenses, net of reinsurance	(6,710)	2,062
IBNR losses and loss expenses, net of reinsurance	$ (1,049)
Cumulative Number of Claims | claim	3,243
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ (7,715)	(3,689)
2018 | Non-life Run-off | Accident Year - 2010 | Professional indemnity/Directors & Officers
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	25,474
Incurred losses and allocated loss adjustment expenses, net of reinsurance	33,765	39,710
IBNR losses and loss expenses, net of reinsurance	$ 8,220
Cumulative Number of Claims | claim	4,259
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 12,243	3,644
2018 | Non-life Run-off | Accident Year - 2010 | Motor
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	23,548
Incurred losses and allocated loss adjustment expenses, net of reinsurance	15,187	13,937
IBNR losses and loss expenses, net of reinsurance	$ 1,015
Cumulative Number of Claims | claim	922
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 6,911	4,437
2018 | Non-life Run-off | Accident Year - 2010 | Workers' compensation
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	24,838
Incurred losses and allocated loss adjustment expenses, net of reinsurance	24,102	25,149
IBNR losses and loss expenses, net of reinsurance	$ 8,642
Cumulative Number of Claims | claim	355
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 4,542	317
2018 | Non-life Run-off | Accident Year - 2011
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	159,362
Incurred losses and allocated loss adjustment expenses, net of reinsurance	142,391	147,341
IBNR losses and loss expenses, net of reinsurance	$ 21,380
Cumulative Number of Claims | claim	14,100
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 47,261	26,998
2018 | Non-life Run-off | Accident Year - 2011 | General casualty
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	17,518
Incurred losses and allocated loss adjustment expenses, net of reinsurance	15,532	15,854
IBNR losses and loss expenses, net of reinsurance	$ 2,086
Cumulative Number of Claims | claim	1,404
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 6,621	2,236
2018 | Non-life Run-off | Accident Year - 2011 | Marine, aviation and transit
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	8,676
Incurred losses and allocated loss adjustment expenses, net of reinsurance	10,345	9,472
IBNR losses and loss expenses, net of reinsurance	$ 1,486
Cumulative Number of Claims | claim	3,966
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 5,901	4,953
2018 | Non-life Run-off | Accident Year - 2011 | Professional indemnity/Directors & Officers
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	44,476
Incurred losses and allocated loss adjustment expenses, net of reinsurance	46,111	50,663
IBNR losses and loss expenses, net of reinsurance	$ 2,837
Cumulative Number of Claims | claim	3,745
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 19,732	12,453
2018 | Non-life Run-off | Accident Year - 2011 | Motor
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	46,015
Incurred losses and allocated loss adjustment expenses, net of reinsurance	35,843	36,282
IBNR losses and loss expenses, net of reinsurance	$ 1,477
Cumulative Number of Claims | claim	1,209
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 12,112	5,631
2018 | Non-life Run-off | Accident Year - 2011 | Workers' compensation
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	29,795
Incurred losses and allocated loss adjustment expenses, net of reinsurance	26,179	24,877
IBNR losses and loss expenses, net of reinsurance	$ 12,202
Cumulative Number of Claims | claim	401
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 1,825	(1,517)
2018 | Non-life Run-off | Accident Year - 2012
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	225,177
Incurred losses and allocated loss adjustment expenses, net of reinsurance	211,156	219,807
IBNR losses and loss expenses, net of reinsurance	$ 20,218
Cumulative Number of Claims | claim	14,055
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 74,768	31,845
2018 | Non-life Run-off | Accident Year - 2012 | General casualty
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	36,536
Incurred losses and allocated loss adjustment expenses, net of reinsurance	27,774	31,901
IBNR losses and loss expenses, net of reinsurance	$ 3,716
Cumulative Number of Claims | claim	1,567
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 11,097	1,104
2018 | Non-life Run-off | Accident Year - 2012 | Marine, aviation and transit
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	16,069
Incurred losses and allocated loss adjustment expenses, net of reinsurance	10,151	12,297
IBNR losses and loss expenses, net of reinsurance	$ (6,037)
Cumulative Number of Claims | claim	4,280
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 3,482	1,180
2018 | Non-life Run-off | Accident Year - 2012 | Professional indemnity/Directors & Officers
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	55,366
Incurred losses and allocated loss adjustment expenses, net of reinsurance	65,180	68,004
IBNR losses and loss expenses, net of reinsurance	$ 12,943
Cumulative Number of Claims | claim	3,263
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 22,837	15,706
2018 | Non-life Run-off | Accident Year - 2012 | Motor
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	62,432
Incurred losses and allocated loss adjustment expenses, net of reinsurance	60,620	55,338
IBNR losses and loss expenses, net of reinsurance	$ 6,949
Cumulative Number of Claims | claim	1,594
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 23,284	11,520
2018 | Non-life Run-off | Accident Year - 2012 | Workers' compensation
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	28,788
Incurred losses and allocated loss adjustment expenses, net of reinsurance	27,723	29,174
IBNR losses and loss expenses, net of reinsurance	$ 12,633
Cumulative Number of Claims | claim	468
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 5,513	521
2018 | Non-life Run-off | Accident Year - 2013
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	263,008
Incurred losses and allocated loss adjustment expenses, net of reinsurance	255,973	267,132
IBNR losses and loss expenses, net of reinsurance	$ 54,609
Cumulative Number of Claims | claim	16,251
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 90,716	42,312
2018 | Non-life Run-off | Accident Year - 2013 | General casualty
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	42,528
Incurred losses and allocated loss adjustment expenses, net of reinsurance	44,782	54,061
IBNR losses and loss expenses, net of reinsurance	$ 5,123
Cumulative Number of Claims | claim	1,571
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 19,756	10,015
2018 | Non-life Run-off | Accident Year - 2013 | Marine, aviation and transit
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	43,798
Incurred losses and allocated loss adjustment expenses, net of reinsurance	29,464	35,462
IBNR losses and loss expenses, net of reinsurance	$ 2,404
Cumulative Number of Claims | claim	5,720
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 11,734	5,642
2018 | Non-life Run-off | Accident Year - 2013 | Professional indemnity/Directors & Officers
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	56,251
Incurred losses and allocated loss adjustment expenses, net of reinsurance	74,018	60,010
IBNR losses and loss expenses, net of reinsurance	$ 9,407
Cumulative Number of Claims | claim	3,223
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 18,601	10,599
2018 | Non-life Run-off | Accident Year - 2013 | Motor
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	74,615
Incurred losses and allocated loss adjustment expenses, net of reinsurance	61,396	68,022
IBNR losses and loss expenses, net of reinsurance	$ 14,105
Cumulative Number of Claims | claim	626
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 27,839	10,226
2018 | Non-life Run-off | Accident Year - 2013 | Workers' compensation
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	37,716
Incurred losses and allocated loss adjustment expenses, net of reinsurance	37,866	38,309
IBNR losses and loss expenses, net of reinsurance	$ 16,786
Cumulative Number of Claims | claim	866
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 7,743	1,532
2018 | Non-life Run-off | Accident Year - 2014
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	408,726
Incurred losses and allocated loss adjustment expenses, net of reinsurance	423,289	453,181
IBNR losses and loss expenses, net of reinsurance	$ 90,111
Cumulative Number of Claims | claim	18,887
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 181,166	93,536
2018 | Non-life Run-off | Accident Year - 2014 | General casualty
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	65,355
Incurred losses and allocated loss adjustment expenses, net of reinsurance	72,333	80,316
IBNR losses and loss expenses, net of reinsurance	$ 16,793
Cumulative Number of Claims | claim	2,210
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 28,071	13,427
2018 | Non-life Run-off | Accident Year - 2014 | Marine, aviation and transit
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	62,766
Incurred losses and allocated loss adjustment expenses, net of reinsurance	82,479	81,126
IBNR losses and loss expenses, net of reinsurance	$ 14,668
Cumulative Number of Claims | claim	5,862
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 40,926	22,990
2018 | Non-life Run-off | Accident Year - 2014 | Professional indemnity/Directors & Officers
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	84,795
Incurred losses and allocated loss adjustment expenses, net of reinsurance	101,771	106,888
IBNR losses and loss expenses, net of reinsurance	$ 16,922
Cumulative Number of Claims | claim	3,563
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 40,189	21,640
2018 | Non-life Run-off | Accident Year - 2014 | Motor
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	111,418
Incurred losses and allocated loss adjustment expenses, net of reinsurance	86,887	99,140
IBNR losses and loss expenses, net of reinsurance	$ 10,440
Cumulative Number of Claims | claim	1,140
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 46,359	20,746
2018 | Non-life Run-off | Accident Year - 2014 | Workers' compensation
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	65,000
Incurred losses and allocated loss adjustment expenses, net of reinsurance	57,128	66,305
IBNR losses and loss expenses, net of reinsurance	$ 24,865
Cumulative Number of Claims | claim	1,335
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 14,666	3,248
2018 | Non-life Run-off | Accident Year - 2015
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	354,692
Incurred losses and allocated loss adjustment expenses, net of reinsurance	467,650	474,678
IBNR losses and loss expenses, net of reinsurance	$ 97,189
Cumulative Number of Claims | claim	23,421
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 191,150	100,598
2018 | Non-life Run-off | Accident Year - 2015 | General casualty
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	77,011
Incurred losses and allocated loss adjustment expenses, net of reinsurance	102,399	91,825
IBNR losses and loss expenses, net of reinsurance	$ 28,926
Cumulative Number of Claims | claim	3,430
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 32,244	15,163
2018 | Non-life Run-off | Accident Year - 2015 | Marine, aviation and transit
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	26,007
Incurred losses and allocated loss adjustment expenses, net of reinsurance	72,055	65,209
IBNR losses and loss expenses, net of reinsurance	$ 8,758
Cumulative Number of Claims | claim	6,606
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 27,978	21,956
2018 | Non-life Run-off | Accident Year - 2015 | Professional indemnity/Directors & Officers
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	45,515
Incurred losses and allocated loss adjustment expenses, net of reinsurance	79,028	97,288
IBNR losses and loss expenses, net of reinsurance	$ 19,285
Cumulative Number of Claims | claim	3,903
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 27,216	13,696
2018 | Non-life Run-off | Accident Year - 2015 | Motor
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	129,271
Incurred losses and allocated loss adjustment expenses, net of reinsurance	126,345	127,187
IBNR losses and loss expenses, net of reinsurance	$ 15,912
Cumulative Number of Claims | claim	1,274
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 58,433	19,857
2018 | Non-life Run-off | Accident Year - 2015 | Workers' compensation
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	38,734
Incurred losses and allocated loss adjustment expenses, net of reinsurance	34,649	39,336
IBNR losses and loss expenses, net of reinsurance	$ 16,909
Cumulative Number of Claims | claim	1,437
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 4,066	1,355
2018 | Non-life Run-off | Accident Year - 2016
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	170,311
Incurred losses and allocated loss adjustment expenses, net of reinsurance	174,845	172,245
IBNR losses and loss expenses, net of reinsurance	$ 55,384
Cumulative Number of Claims | claim	2,094
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 62,658	6,258
2018 | Non-life Run-off | Accident Year - 2016 | General casualty
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	28,825
Incurred losses and allocated loss adjustment expenses, net of reinsurance	36,585	28,825
IBNR losses and loss expenses, net of reinsurance	$ 14,377
Cumulative Number of Claims | claim	253
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 14,109	0
2018 | Non-life Run-off | Accident Year - 2016 | Marine, aviation and transit
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	0
Incurred losses and allocated loss adjustment expenses, net of reinsurance	0	0
IBNR losses and loss expenses, net of reinsurance	$ 0
Cumulative Number of Claims | claim	0
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 0	0
2018 | Non-life Run-off | Accident Year - 2016 | Professional indemnity/Directors & Officers
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	0
Incurred losses and allocated loss adjustment expenses, net of reinsurance	0	0
IBNR losses and loss expenses, net of reinsurance	$ 0
Cumulative Number of Claims | claim	0
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 0	0
2018 | Non-life Run-off | Accident Year - 2016 | Motor
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	90,166
Incurred losses and allocated loss adjustment expenses, net of reinsurance	93,824	92,100
IBNR losses and loss expenses, net of reinsurance	$ 19,439
Cumulative Number of Claims | claim	644
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 42,527	6,258
2018 | Non-life Run-off | Accident Year - 2016 | Workers' compensation
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	44,686
Incurred losses and allocated loss adjustment expenses, net of reinsurance	38,945	44,686
IBNR losses and loss expenses, net of reinsurance	$ 21,267
Cumulative Number of Claims | claim	892
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 3,666	0
2018 | Non-life Run-off | Accident Year - 2017
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	207,035
Incurred losses and allocated loss adjustment expenses, net of reinsurance	205,460	207,172
IBNR losses and loss expenses, net of reinsurance	$ 79,430
Cumulative Number of Claims | claim	4,163
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 72,794	52
2018 | Non-life Run-off | Accident Year - 2017 | General casualty
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	37,209
Incurred losses and allocated loss adjustment expenses, net of reinsurance	41,664	37,209
IBNR losses and loss expenses, net of reinsurance	$ 20,392
Cumulative Number of Claims | claim	230
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 11,048	0
2018 | Non-life Run-off | Accident Year - 2017 | Marine, aviation and transit
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	0
Incurred losses and allocated loss adjustment expenses, net of reinsurance	0	0
IBNR losses and loss expenses, net of reinsurance	$ 0
Cumulative Number of Claims | claim	0
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 0	0
2018 | Non-life Run-off | Accident Year - 2017 | Professional indemnity/Directors & Officers
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	0
Incurred losses and allocated loss adjustment expenses, net of reinsurance	0	0
IBNR losses and loss expenses, net of reinsurance	$ 0
Cumulative Number of Claims | claim	0
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 0	0
2018 | Non-life Run-off | Accident Year - 2017 | Motor
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	100,316
Incurred losses and allocated loss adjustment expenses, net of reinsurance	99,129	100,453
IBNR losses and loss expenses, net of reinsurance	$ 30,312
Cumulative Number of Claims | claim	2,797
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 48,655	52
2018 | Non-life Run-off | Accident Year - 2017 | Workers' compensation
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	52,360
Incurred losses and allocated loss adjustment expenses, net of reinsurance	49,156	52,360
IBNR losses and loss expenses, net of reinsurance	$ 28,222
Cumulative Number of Claims | claim	998
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 5,900	0
2018 | Non-life Run-off | Accident Year - 2018
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	315,659
Incurred losses and allocated loss adjustment expenses, net of reinsurance	285,038	315,659
IBNR losses and loss expenses, net of reinsurance	$ 88,411
Cumulative Number of Claims | claim	4,929
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 139,815	0
2018 | Non-life Run-off | Accident Year - 2018 | General casualty
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	39,888
Incurred losses and allocated loss adjustment expenses, net of reinsurance	40,753	39,888
IBNR losses and loss expenses, net of reinsurance	$ 20,480
Cumulative Number of Claims | claim	182
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 8,879	0
2018 | Non-life Run-off | Accident Year - 2018 | Marine, aviation and transit
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	0
Incurred losses and allocated loss adjustment expenses, net of reinsurance	0	0
IBNR losses and loss expenses, net of reinsurance	$ 0
Cumulative Number of Claims | claim	0
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 0	0
2018 | Non-life Run-off | Accident Year - 2018 | Professional indemnity/Directors & Officers
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	0
Incurred losses and allocated loss adjustment expenses, net of reinsurance	0	0
IBNR losses and loss expenses, net of reinsurance	$ 0
Cumulative Number of Claims | claim	0
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 0	0
2018 | Non-life Run-off | Accident Year - 2018 | Motor
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	180,471
Incurred losses and allocated loss adjustment expenses, net of reinsurance	157,556	180,471
IBNR losses and loss expenses, net of reinsurance	$ 42,546
Cumulative Number of Claims | claim	3,731
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 86,861	0
2018 | Non-life Run-off | Accident Year - 2018 | Workers' compensation
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	65,075
Incurred losses and allocated loss adjustment expenses, net of reinsurance	60,923	65,075
IBNR losses and loss expenses, net of reinsurance	$ 24,137
Cumulative Number of Claims | claim	886
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 28,725	$ 0
2018 | Non-life Run-off | Accident Year - 2019
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	0
Incurred losses and allocated loss adjustment expenses, net of reinsurance	68,271
IBNR losses and loss expenses, net of reinsurance	$ 19,774
Cumulative Number of Claims | claim	1,634
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 39,099
2018 | Non-life Run-off | Accident Year - 2019 | General casualty
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	0
Incurred losses and allocated loss adjustment expenses, net of reinsurance	6,767
IBNR losses and loss expenses, net of reinsurance	$ 2,802
Cumulative Number of Claims | claim	34
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 2,373
2018 | Non-life Run-off | Accident Year - 2019 | Marine, aviation and transit
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	0
Incurred losses and allocated loss adjustment expenses, net of reinsurance	0
IBNR losses and loss expenses, net of reinsurance	$ 0
Cumulative Number of Claims | claim	0
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 0
2018 | Non-life Run-off | Accident Year - 2019 | Professional indemnity/Directors & Officers
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	0
Incurred losses and allocated loss adjustment expenses, net of reinsurance	0
IBNR losses and loss expenses, net of reinsurance	$ 0
Cumulative Number of Claims | claim	0
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 0
2018 | Non-life Run-off | Accident Year - 2019 | Motor
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	0
Incurred losses and allocated loss adjustment expenses, net of reinsurance	39,757
IBNR losses and loss expenses, net of reinsurance	$ 11,457
Cumulative Number of Claims | claim	1,200
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 22,687
2018 | Non-life Run-off | Accident Year - 2019 | Workers' compensation
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	0
Incurred losses and allocated loss adjustment expenses, net of reinsurance	20,889
IBNR losses and loss expenses, net of reinsurance	$ 5,472
Cumulative Number of Claims | claim	383
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 13,483
2019 | Non-life Run-off
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	1,705,335
Incurred losses and allocated loss adjustment expenses, net of reinsurance	1,761,512
IBNR losses and loss expenses, net of reinsurance	$ 1,047,146
Cumulative Number of Claims | claim	256,353
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 205,892
Liabilities for unpaid losses and allocated LAE, net of reinsurance	1,555,620
2019 | Non-life Run-off | General casualty
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	281,908
Incurred losses and allocated loss adjustment expenses, net of reinsurance	266,888
IBNR losses and loss expenses, net of reinsurance	$ 185,818
Cumulative Number of Claims | claim	5,472
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 25,347
Liabilities for unpaid losses and allocated LAE, net of reinsurance	241,541
2019 | Non-life Run-off | Marine, aviation and transit
Liability for Claims and Claims Adjustment Expense [Line Items]
Liabilities for unpaid losses and allocated LAE, net of reinsurance	91,909
2019 | Non-life Run-off | Professional indemnity/Directors & Officers
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	187,895
Incurred losses and allocated loss adjustment expenses, net of reinsurance	208,203
IBNR losses and loss expenses, net of reinsurance	$ 73,407
Cumulative Number of Claims | claim	46,366
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 43,932
Liabilities for unpaid losses and allocated LAE, net of reinsurance	164,271
2019 | Non-life Run-off | Motor
Liability for Claims and Claims Adjustment Expense [Line Items]
Liabilities for unpaid losses and allocated LAE, net of reinsurance	22,099
2019 | Non-life Run-off | Property
Liability for Claims and Claims Adjustment Expense [Line Items]
Liabilities for unpaid losses and allocated LAE, net of reinsurance	78,785
2019 | Non-life Run-off | Workers' compensation
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	409,360
Incurred losses and allocated loss adjustment expenses, net of reinsurance	407,878
IBNR losses and loss expenses, net of reinsurance	$ 379,724
Cumulative Number of Claims | claim	36,520
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 15,424
Liabilities for unpaid losses and allocated LAE, net of reinsurance	392,454
2019 | Non-life Run-off | 2009 and Prior
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	604,631
Incurred losses and allocated loss adjustment expenses, net of reinsurance	598,841
IBNR losses and loss expenses, net of reinsurance	$ 330,575
Cumulative Number of Claims | claim	81,869
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 21,678
2019 | Non-life Run-off | 2009 and Prior | General casualty
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	4,396
Incurred losses and allocated loss adjustment expenses, net of reinsurance	4,415
IBNR losses and loss expenses, net of reinsurance	$ 670
Cumulative Number of Claims | claim	693
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 1,163
2019 | Non-life Run-off | 2009 and Prior | Professional indemnity/Directors & Officers
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	6,696
Incurred losses and allocated loss adjustment expenses, net of reinsurance	4,052
IBNR losses and loss expenses, net of reinsurance	$ 812
Cumulative Number of Claims | claim	10,399
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 1,323
2019 | Non-life Run-off | 2009 and Prior | Workers' compensation
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	5,143
Incurred losses and allocated loss adjustment expenses, net of reinsurance	3,609
IBNR losses and loss expenses, net of reinsurance	$ 1,270
Cumulative Number of Claims | claim	11,136
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 577
2019 | Non-life Run-off | Accident Year - 2010
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	35,515
Incurred losses and allocated loss adjustment expenses, net of reinsurance	24,353
IBNR losses and loss expenses, net of reinsurance	$ 3,586
Cumulative Number of Claims | claim	21,945
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 4,923
2019 | Non-life Run-off | Accident Year - 2010 | General casualty
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	7,704
Incurred losses and allocated loss adjustment expenses, net of reinsurance	5,426
IBNR losses and loss expenses, net of reinsurance	$ 1,509
Cumulative Number of Claims | claim	1,213
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 1,031
2019 | Non-life Run-off | Accident Year - 2010 | Professional indemnity/Directors & Officers
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	7,245
Incurred losses and allocated loss adjustment expenses, net of reinsurance	4,448
IBNR losses and loss expenses, net of reinsurance	$ 838
Cumulative Number of Claims | claim	5,300
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 326
2019 | Non-life Run-off | Accident Year - 2010 | Workers' compensation
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	713
Incurred losses and allocated loss adjustment expenses, net of reinsurance	726
IBNR losses and loss expenses, net of reinsurance	$ 642
Cumulative Number of Claims | claim	1,352
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 38
2019 | Non-life Run-off | Accident Year - 2011
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	47,718
Incurred losses and allocated loss adjustment expenses, net of reinsurance	38,961
IBNR losses and loss expenses, net of reinsurance	$ 1,506
Cumulative Number of Claims | claim	21,380
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 4,649
2019 | Non-life Run-off | Accident Year - 2011 | General casualty
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	11,381
Incurred losses and allocated loss adjustment expenses, net of reinsurance	8,817
IBNR losses and loss expenses, net of reinsurance	$ 2,347
Cumulative Number of Claims | claim	1,148
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 896
2019 | Non-life Run-off | Accident Year - 2011 | Professional indemnity/Directors & Officers
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	18,093
Incurred losses and allocated loss adjustment expenses, net of reinsurance	10,292
IBNR losses and loss expenses, net of reinsurance	$ 1,947
Cumulative Number of Claims | claim	6,511
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 3,403
2019 | Non-life Run-off | Accident Year - 2011 | Workers' compensation
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	2,470
Incurred losses and allocated loss adjustment expenses, net of reinsurance	2,410
IBNR losses and loss expenses, net of reinsurance	$ 2,334
Cumulative Number of Claims | claim	1,476
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 24
2019 | Non-life Run-off | Accident Year - 2012
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	70,661
Incurred losses and allocated loss adjustment expenses, net of reinsurance	51,937
IBNR losses and loss expenses, net of reinsurance	$ 27,520
Cumulative Number of Claims | claim	15,532
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 6,455
2019 | Non-life Run-off | Accident Year - 2012 | General casualty
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	16,910
Incurred losses and allocated loss adjustment expenses, net of reinsurance	13,592
IBNR losses and loss expenses, net of reinsurance	$ 5,262
Cumulative Number of Claims | claim	688
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 3,136
2019 | Non-life Run-off | Accident Year - 2012 | Professional indemnity/Directors & Officers
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	30,127
Incurred losses and allocated loss adjustment expenses, net of reinsurance	18,012
IBNR losses and loss expenses, net of reinsurance	$ 4,348
Cumulative Number of Claims | claim	3,472
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 3,216
2019 | Non-life Run-off | Accident Year - 2012 | Workers' compensation
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	6,274
Incurred losses and allocated loss adjustment expenses, net of reinsurance	6,173
IBNR losses and loss expenses, net of reinsurance	$ 6,090
Cumulative Number of Claims | claim	2,102
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 24
2019 | Non-life Run-off | Accident Year - 2013
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	110,426
Incurred losses and allocated loss adjustment expenses, net of reinsurance	87,708
IBNR losses and loss expenses, net of reinsurance	$ 36,879
Cumulative Number of Claims | claim	19,223
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 12,893
2019 | Non-life Run-off | Accident Year - 2013 | General casualty
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	22,355
Incurred losses and allocated loss adjustment expenses, net of reinsurance	16,934
IBNR losses and loss expenses, net of reinsurance	$ 7,515
Cumulative Number of Claims | claim	448
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 3,472
2019 | Non-life Run-off | Accident Year - 2013 | Professional indemnity/Directors & Officers
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	46,758
Incurred losses and allocated loss adjustment expenses, net of reinsurance	35,881
IBNR losses and loss expenses, net of reinsurance	$ 9,945
Cumulative Number of Claims | claim	4,411
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 3,924
2019 | Non-life Run-off | Accident Year - 2013 | Workers' compensation
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	16,686
Incurred losses and allocated loss adjustment expenses, net of reinsurance	16,223
IBNR losses and loss expenses, net of reinsurance	$ 14,578
Cumulative Number of Claims | claim	3,726
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 451
2019 | Non-life Run-off | Accident Year - 2014
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	135,465
Incurred losses and allocated loss adjustment expenses, net of reinsurance	131,000
IBNR losses and loss expenses, net of reinsurance	$ 76,169
Cumulative Number of Claims | claim	21,224
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 26,910
2019 | Non-life Run-off | Accident Year - 2014 | General casualty
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	32,883
Incurred losses and allocated loss adjustment expenses, net of reinsurance	30,337
IBNR losses and loss expenses, net of reinsurance	$ 15,387
Cumulative Number of Claims | claim	456
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 4,103
2019 | Non-life Run-off | Accident Year - 2014 | Professional indemnity/Directors & Officers
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	46,557
Incurred losses and allocated loss adjustment expenses, net of reinsurance	46,982
IBNR losses and loss expenses, net of reinsurance	$ 17,975
Cumulative Number of Claims | claim	5,361
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 14,955
2019 | Non-life Run-off | Accident Year - 2014 | Workers' compensation
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	34,945
Incurred losses and allocated loss adjustment expenses, net of reinsurance	35,252
IBNR losses and loss expenses, net of reinsurance	$ 30,998
Cumulative Number of Claims | claim	3,956
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 3,076
2019 | Non-life Run-off | Accident Year - 2015
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	182,991
Incurred losses and allocated loss adjustment expenses, net of reinsurance	186,727
IBNR losses and loss expenses, net of reinsurance	$ 99,838
Cumulative Number of Claims | claim	35,276
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 34,610
2019 | Non-life Run-off | Accident Year - 2015 | General casualty
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	58,563
Incurred losses and allocated loss adjustment expenses, net of reinsurance	45,594
IBNR losses and loss expenses, net of reinsurance	$ 30,556
Cumulative Number of Claims | claim	346
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 4,552
2019 | Non-life Run-off | Accident Year - 2015 | Professional indemnity/Directors & Officers
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	29,527
Incurred losses and allocated loss adjustment expenses, net of reinsurance	32,577
IBNR losses and loss expenses, net of reinsurance	$ 7,665
Cumulative Number of Claims | claim	5,856
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 7,193
2019 | Non-life Run-off | Accident Year - 2015 | Workers' compensation
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	57,027
Incurred losses and allocated loss adjustment expenses, net of reinsurance	56,158
IBNR losses and loss expenses, net of reinsurance	$ 48,794
Cumulative Number of Claims | claim	6,158
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 3,635
2019 | Non-life Run-off | Accident Year - 2016
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	238,798
Incurred losses and allocated loss adjustment expenses, net of reinsurance	308,254
IBNR losses and loss expenses, net of reinsurance	$ 179,237
Cumulative Number of Claims | claim	39,815
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 68,179
2019 | Non-life Run-off | Accident Year - 2016 | General casualty
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	50,518
Incurred losses and allocated loss adjustment expenses, net of reinsurance	62,866
IBNR losses and loss expenses, net of reinsurance	$ 44,899
Cumulative Number of Claims | claim	475
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 6,193
2019 | Non-life Run-off | Accident Year - 2016 | Professional indemnity/Directors & Officers
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	2,892
Incurred losses and allocated loss adjustment expenses, net of reinsurance	52,708
IBNR losses and loss expenses, net of reinsurance	$ 28,916
Cumulative Number of Claims | claim	5,053
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 8,067
2019 | Non-life Run-off | Accident Year - 2016 | Workers' compensation
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	84,171
Incurred losses and allocated loss adjustment expenses, net of reinsurance	85,396
IBNR losses and loss expenses, net of reinsurance	$ 73,087
Cumulative Number of Claims | claim	6,612
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 7,599
2019 | Non-life Run-off | Accident Year - 2017
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	116,386
Incurred losses and allocated loss adjustment expenses, net of reinsurance	116,386
IBNR losses and loss expenses, net of reinsurance	$ 116,386
Cumulative Number of Claims | claim	2
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 0
2019 | Non-life Run-off | Accident Year - 2017 | General casualty
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	32,188
Incurred losses and allocated loss adjustment expenses, net of reinsurance	32,188
IBNR losses and loss expenses, net of reinsurance	$ 32,188
Cumulative Number of Claims | claim	1
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 0
2019 | Non-life Run-off | Accident Year - 2017 | Professional indemnity/Directors & Officers
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	0
Incurred losses and allocated loss adjustment expenses, net of reinsurance	0
IBNR losses and loss expenses, net of reinsurance	$ 0
Cumulative Number of Claims | claim	0
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 0
2019 | Non-life Run-off | Accident Year - 2017 | Workers' compensation
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	84,197
Incurred losses and allocated loss adjustment expenses, net of reinsurance	84,197
IBNR losses and loss expenses, net of reinsurance	$ 84,197
Cumulative Number of Claims | claim	1
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 0
2019 | Non-life Run-off | Accident Year - 2018
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	162,744
Incurred losses and allocated loss adjustment expenses, net of reinsurance	162,744
IBNR losses and loss expenses, net of reinsurance	$ 162,744
Cumulative Number of Claims | claim	2
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 0
2019 | Non-life Run-off | Accident Year - 2018 | General casualty
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	45,010
Incurred losses and allocated loss adjustment expenses, net of reinsurance	45,010
IBNR losses and loss expenses, net of reinsurance	$ 45,010
Cumulative Number of Claims | claim	1
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 0
2019 | Non-life Run-off | Accident Year - 2018 | Professional indemnity/Directors & Officers
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	0
Incurred losses and allocated loss adjustment expenses, net of reinsurance	0
IBNR losses and loss expenses, net of reinsurance	$ 0
Cumulative Number of Claims | claim	0
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 0
2019 | Non-life Run-off | Accident Year - 2018 | Workers' compensation
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	117,734
Incurred losses and allocated loss adjustment expenses, net of reinsurance	117,734
IBNR losses and loss expenses, net of reinsurance	$ 117,734
Cumulative Number of Claims | claim	1
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 0
2019 | Non-life Run-off | Accident Year - 2019
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	0
Incurred losses and allocated loss adjustment expenses, net of reinsurance	54,601
IBNR losses and loss expenses, net of reinsurance	$ 12,706
Cumulative Number of Claims | claim	85
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 25,595
2019 | Non-life Run-off | Accident Year - 2019 | General casualty
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	0
Incurred losses and allocated loss adjustment expenses, net of reinsurance	1,709
IBNR losses and loss expenses, net of reinsurance	$ 475
Cumulative Number of Claims | claim	3
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 801
2019 | Non-life Run-off | Accident Year - 2019 | Professional indemnity/Directors & Officers
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	0
Incurred losses and allocated loss adjustment expenses, net of reinsurance	3,251
IBNR losses and loss expenses, net of reinsurance	$ 961
Cumulative Number of Claims | claim	3
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 1,525
2019 | Non-life Run-off | Accident Year - 2019 | Workers' compensation
Liability for Claims and Claims Adjustment Expense [Line Items]
Total Net Reserves Acquired	0
Incurred losses and allocated loss adjustment expenses, net of reinsurance	0
IBNR losses and loss expenses, net of reinsurance	$ 0
Cumulative Number of Claims | claim	0
Cumulative Paid Losses and Allocated Loss Adjustment Expenses, Net of Reinsurance	$ 0