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Short Duration Contracts (Tables)

12 Months Ended

Dec. 31, 2020

Short Duration Contracts Disclosure [Abstract]

Levels of disaggregation

The Company’s reserves for losses and loss adjustment expenses primarily relate to short-duration contracts with various characteristics (e.g., type of coverage, geography, claims duration). The Company considered such information in determining the level of disaggregation for disclosures related to its short-duration contracts, as detailed in the table below:

Reportable segment

Level of disaggregation

Included lines of business

Insurance

Property energy, marine and aviation

Property energy, marine and aviation

Third party occurrence business

Excess and surplus casualty (excluding contract binding); construction and national accounts; and other (including alternative market risks, excess workers’ compensation and employer’s liability insurance coverages)

Third party claims-made business

Professional lines

Multi-line and other specialty

Programs; contract binding (part of excess and surplus casualty); travel, accident and health; lenders products; and other (contract and commercial surety coverages)

Reinsurance

Casualty

Casualty

Property catastrophe

Property catastrophe

Property excluding property catastrophe

Property excluding property catastrophe

Marine and aviation

Marine and aviation

Other specialty

Other specialty

Mortgage

Direct mortgage insurance in the U.S.

Mortgage insurance on U.S. primary exposures

Claims Development [Line Items]

Reconciliation of claims development to liability

The following table represents a reconciliation of the disclosures of net incurred and paid loss development tables to the reserve for losses and loss adjustment expenses at December 31, 2020:

			December 31, 2020
Net outstanding liabilities
Insurance
Property, energy, marine and aviation			$	492,588
Third party occurrence business			2,558,285
Third party claims-made business			1,377,179
Multi-line and other specialty			1,273,791
Reinsurance
Casualty			1,885,107
Property catastrophe			276,172
Property excluding property catastrophe			581,072
Marine and aviation			183,362
Other specialty			906,995
Mortgage
U.S. primary			623,445
Other short duration lines not included in disclosures (1)			1,765,397
Total for short duration lines			11,923,393
Unpaid losses and loss adjustment expenses recoverable
Insurance
Property, energy, marine and aviation			331,817
Third party occurrence business			1,272,034
Third party claims-made business			808,238
Multi-line and other specialty			246,915
Reinsurance
Casualty			536,809
Property catastrophe			266,946
Property excluding property catastrophe			70,108
Marine and aviation			63,781
Other specialty			317,011
Mortgage
U.S. primary			52,016
Other short duration lines not included in disclosures (2)			1,090,486
Intercompany eliminations			(718,507)
Total for short duration lines			4,337,654
Lines other than short duration			75,369
Discounting			(23,326)
Unallocated claims adjustment expenses			200,839
			252,882
Total gross reserves for losses and loss adjustment expenses			$	16,513,929

(1)    Includes net outstanding liabilities of $1.2 billion for the ‘other’ segment.

(2)    Includes unpaid loss and loss adjustment expenses recoverable of $153.1 million related to the loss portfolio transfer reinsurance agreement.

Insurance

Claims Development [Line Items]

Claims development tables

The following tables present information on the insurance segment’s short-duration insurance contracts:

Property, energy, marine and aviation ($000’s except claim count)
Incurred losses and allocated loss adjustment expenses, net of reinsurance																																																																		December 31, 2020
																																																																		Total of IBNR liabilities plus expected development on reported claims						Cumulative number of reported claims
						Year ended December 31,
Accident year						2011 unaudited						2012 unaudited						2013 unaudited						2014 unaudited						2015 unaudited						2016 unaudited						2017 unaudited						2018 unaudited						2019 unaudited						2020
2011						$	269,739					$	272,897					$	231,841					$	220,231					$	210,926					$	207,814					$	200,918					$	201,198					$	197,833					$	196,436					$	689					4,219
2012												232,500						231,742						205,098						198,837						196,405						192,406						190,192						178,039						177,673						931						4,269
2013																		158,718						156,344						148,800						143,046						134,620						133,544						128,301						126,968						809						4,278
2014																								148,185						145,765						147,315						136,096						132,209						134,234						134,937						4,206						3,930
2015																														112,333						109,799						103,944						102,469						97,809						91,788						5,249						4,618
2016																																				104,139						100,986						105,330						100,147						96,127						882						6,389
2017																																										280,695						246,272						235,932						230,421						9,327						6,752
2018																																																180,981						186,030						173,693						14,784						5,347
2019																																																						179,056						178,564						20,553						6,051
2020																																																												359,394						168,463						16,980
																																																						Total						$	1,766,001
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance
2011						$	34,478					$	99,724					$	142,231					$	167,867					$	200,473					$	202,347					$	197,720					$	198,626					$	195,245					$	195,347
2012												20,522						92,855						138,431						161,255						166,965						179,371						180,734						172,611						173,460
2013																		32,239						84,759						110,548						119,791						121,922						125,156						123,036						124,369
2014																								25,859						53,669						77,804						84,103						87,721						98,463						115,293
2015																														23,567						64,916						76,299						86,214						87,887						86,207
2016																																				24,728						83,321						98,420						97,218						94,703
2017																																										30,219						139,854						195,518						211,694
2018																																																30,026						102,285						134,858
2019																																																						26,130						105,380
2020																																																												55,619
																														Total																														1,296,930
																														All outstanding liabilities before 2011, net of reinsurance																														23,517
																								Liabilities for losses and loss adjustment expenses, net of reinsurance																																				$	492,588

Third party occurrence business ($000’s except claim count)
						Incurred losses and allocated loss adjustment expenses, net of reinsurance																																																												December 31, 2020
																																																																		Total of IBNR liabilities plus expected development on reported claims						Cumulative number of reported claims
						Year ended December 31,
Accident year						2011 unaudited						2012 unaudited						2013 unaudited						2014 unaudited						2015 unaudited						2016 unaudited						2017 unaudited						2018 unaudited						2019 unaudited						2020
2011						$	234,068					$	240,669					$	254,181					$	258,784					$	252,615					$	253,976					$	247,052					$	239,676					$	234,782					$	235,073					$	35,138					70,924
2012												241,062						262,718						268,365						271,035						257,418						252,822						242,930						243,484						241,378						50,208						65,495
2013																		282,968						296,839						306,751						301,789						281,786						274,391						272,528						269,437						60,720						66,685
2014																								329,809						335,720						338,623						342,868						339,495						343,995						342,731						77,547						74,964
2015																														358,858						391,666						398,670						391,904						391,231						382,518						107,083						77,257
2016																																				389,623						394,281						405,889						399,394						374,728						142,000						76,765
2017																																										417,183						417,748						422,441						412,318						195,684						82,267
2018																																																430,216						452,975						450,736						248,271						74,789
2019																																																						456,059						487,224						318,622						80,934
2020																																																												606,827						524,473						67,541
																																																						Total						$	3,802,970
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance
2011						$	7,020					$	25,276					$	43,479					$	73,448					$	113,502					$	134,622					$	152,756					$	160,609					$	172,940					$	181,505
2012												6,966						30,824						58,444						83,328						108,252						129,572						143,177						154,282						162,202
2013																		6,845						29,230						71,370						101,196						122,120						149,098						164,187						174,700
2014																								9,209						40,263						71,519						112,591						161,993						191,168						211,503
2015																														11,119						44,542						88,443						139,403						181,566						211,573
2016																																				11,689						41,938						87,565						136,793						164,573
2017																																										13,396						52,323						99,827						135,025
2018																																																17,002						63,798						115,076
2019																																																						18,392						73,120
2020																																																												24,439
																														Total																														1,453,716
																														All outstanding liabilities before 2011, net of reinsurance																														209,031
																								Liabilities for losses and loss adjustment expenses, net of reinsurance																																				$	2,558,285

Third party claims-made business ($000’s except claim count)
Incurred losses and allocated loss adjustment expenses, net of reinsurance																																																																		December 31, 2020
																																																																		Total of IBNR liabilities plus expected development on reported claims						Cumulative number of reported claims
						Year ended December 31,
Accident year						2011 unaudited						2012 unaudited						2013 unaudited						2014 unaudited						2015 unaudited						2016 unaudited						2017 unaudited						2018 unaudited						2019 unaudited						2020
2011						$	287,607					$	330,898					$	322,274					$	317,074					$	322,934					$	301,240					$	288,038					$	289,974					$	291,477					$	290,124					$	4,594					11,762
2012												317,360						319,961						318,161						313,622						291,010						275,388						277,388						284,875						285,236						13,772						14,760
2013																		301,715						320,387						324,167						320,284						294,465						290,961						281,751						271,262						15,306						14,543
2014																								264,354						279,544						298,715						278,706						281,513						297,485						291,729						29,279						13,935
2015																														258,817						277,437						276,328						259,902						255,276						252,329						29,255						13,817
2016																																				275,119						291,377						308,195						314,515						321,850						61,156						15,734
2017																																										270,523						285,993						311,980						308,401						82,537						15,923
2018																																																272,844						314,412						319,956						123,386						14,988
2019																																																						289,463						317,668						186,452						18,871
2020																																																												383,914						327,587						21,538
																																																						Total						$	3,042,469
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance
2011						$	13,740					$	72,365					$	130,424					$	175,139					$	208,665					$	228,450					$	240,267					$	254,300					$	269,579					$	276,887
2012												17,709						69,020						121,112						164,605						190,200						209,097						227,179						251,078						255,098
2013																		19,015						87,408						137,890						179,302						197,907						217,030						238,798						245,504
2014																								13,815						63,296						129,502						172,835						207,640						229,512						243,338
2015																														9,061						52,019						100,048						126,452						174,108						193,130
2016																																				10,547						68,178						127,229						158,159						205,514
2017																																										9,289						67,572						113,047						143,149
2018																																																12,255						68,300						118,184
2019																																																						12,387						65,345
2020																																																												17,098
																														Total																														1,763,247
																														All outstanding liabilities before 2011, net of reinsurance																														97,957
																								Liabilities for losses and loss adjustment expenses, net of reinsurance																																				$	1,377,179

Multi-line and other specialty ($000’s except claim count) (1)
Incurred losses and allocated loss adjustment expenses, net of reinsurance																																																																		December 31, 2020
																																																																		Total of IBNR liabilities plus expected development on reported claims						Cumulative number of reported claims
						Year ended December 31,
Accident year						2011 unaudited						2012 unaudited						2013 unaudited						2014 unaudited						2015 unaudited						2016 unaudited						2017 unaudited						2018 unaudited						2019 unaudited						2020
2011						$	183,081					$	188,766					$	182,979					$	176,545					$	172,649					$	172,403					$	168,888					$	170,350					$	170,091					$	166,577					$	1,790					44,989
2012												253,525						264,217						258,467						256,106						255,277						247,050						247,279						244,191						244,246						2,551						55,512
2013																		274,361						283,112						274,483						281,697						271,687						275,386						273,177						270,853						4,661						72,323
2014																								349,754						373,978						370,442						387,082						398,240						410,366						418,512						12,232						111,727
2015																														398,755						418,761						420,642						443,258						456,329						471,865						18,596						151,598
2016																																				482,653						504,586						514,650						516,239						537,591						28,282						177,931
2017																																										551,688						579,217						578,341						615,833						45,947						221,643
2018																																																570,069						621,534						629,299						74,894						247,622
2019																																																						613,638						667,415						134,996						234,383
2020																																																												654,302						403,044						117,814
																																																						Total						$	4,676,493
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance
2011						$	51,312					$	103,372					$	117,927					$	136,686					$	148,049					$	151,710					$	157,199					$	159,526					$	162,460					$	162,995
2012												78,337						165,836						190,064						209,124						222,929						231,776						232,987						236,282						239,244
2013																		86,791						152,773						185,611						222,086						237,898						251,698						257,744						260,374
2014																								109,236						206,444						255,332						306,411						341,580						367,026						380,041
2015																														142,009						250,360						304,197						350,781						380,818						409,455
2016																																				181,415						323,681						382,805						425,642						464,774
2017																																										187,606						363,275						419,454						480,336
2018																																																214,475						399,852						464,970
2019																																																						213,950						397,104
2020																																																												174,862
																														Total																														3,434,155
																														All outstanding liabilities before 2011, net of reinsurance																														31,453
																								Liabilities for losses and loss adjustment expenses, net of reinsurance																																				$	1,273,791

(1) In 2019, the Company entered into a loss portfolio transfer agreement, which transferred reserves associated with certain multi-line business for accident years 2017 and prior to a third party. This loss portfolio transfer agreement was commuted in 2020, therefore the complete history of the subject business is now included in the multi-line triangles above.

Percentage annual payout by age

The following table presents the average annual percentage payout of incurred losses and allocated loss adjustment expenses by age, net of reinsurance, as of December 31, 2020:

						Average annual percentage payout of incurred losses and allocated loss adjustment expenses by age, net of reinsurance
						Year 1						Year 2						Year 3						Year 4						Year 5						Year 6						Year 7						Year 8						Year 9						Year 10
Property, energy, marine and aviation						18.6		%				41.7		%				19.6		%				7.8		%				3.9		%				3.3		%				2.3		%				(1.0)		%				(0.6)		%				0.1		%
Third party occurrence business						3.2		%				9.2		%				11.3		%				11.6		%				11.3		%				8.8		%				6.2		%				3.9		%				4.3		%				3.6		%
Third party claims-made business						4.5		%				18.7		%				18.4		%				12.9		%				12.2		%				7.1		%				5.8		%				5.2		%				3.3		%				2.5		%
Multi-line and other specialty						30.8		%				27.7		%				10.5		%				10.4		%				6.7		%				4.6		%				2.3		%				1.2		%				1.5		%				0.3		%

Reinsurance

Claims Development [Line Items]

Claims development tables

The following tables present information on the reinsurance segment’s short-duration insurance contracts:

Casualty ($000’s)
Incurred losses and allocated loss adjustment expenses, net of reinsurance																																																																		December 31, 2020
																																																																		Total of IBNR liabilities plus expected development on reported claims						Cumulative number of reported claims
						Year ended December 31,
Accident year						2011 unaudited						2012 unaudited						2013 unaudited						2014 unaudited						2015 unaudited						2016 unaudited						2017 unaudited						2018 unaudited						2019 unaudited						2020
2011						$	152,359					$	155,796					$	149,799					$	145,259					$	141,023					$	138,257					$	132,142					$	129,307					$	130,769					$	126,543					$	16,905					N/A
2012												145,770						143,950						139,762						127,563						117,551						111,938						120,655						123,884						122,312						28,208						N/A
2013																		168,738						161,993						157,804						151,340						139,221						137,591						133,857						137,978						37,566						N/A
2014																								219,506						224,801						222,220						236,505						233,033						242,792						243,067						48,039						N/A
2015																														225,908						224,525						233,644						240,886						244,861						251,747						63,133						N/A
2016																																				217,499						229,862						254,032						268,880						275,966						65,394						N/A
2017																																										268,353						253,959						269,434						297,998						79,858						N/A
2018																																																282,010						296,507						286,944						81,666						N/A
2019																																																						338,581						347,126						178,981						N/A
2020																																																												393,328						333,679						N/A
																																																						Total						$	2,483,009
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance
2011						$	2,353					$	11,509					$	21,684					$	38,998					$	55,027					$	64,486					$	71,457					$	76,722					$	82,728					$	87,463
2012												1,371						8,637						14,875						25,738						36,809						48,109						59,877						70,308						76,287
2013																		2,549						10,050						23,209						43,263						54,797						63,415						71,150						77,089
2014																								3,962						16,160						40,949						63,636						91,366						114,798						135,101
2015																														4,490						20,340						47,381						71,231						97,007						120,889
2016																																				5,763						25,720						51,822						86,989						114,096
2017																																										6,441						29,414						59,377						108,591
2018																																																7,588						31,118						106,454
2019																																																						15,824						57,682
2020																																																												17,822
																														Total																														901,474
																														All outstanding liabilities before 2011, net of reinsurance																														303,572
																								Liabilities for losses and loss adjustment expenses, net of reinsurance																																				$	1,885,107

Property catastrophe ($000’s)
Incurred losses and allocated loss adjustment expenses, net of reinsurance																																																																		December 31, 2020
																																																																		Total of IBNR liabilities plus expected development on reported claims						Cumulative number of reported claims
						Year ended December 31,
Accident year						2011 unaudited						2012 unaudited						2013 unaudited						2014 unaudited						2015 unaudited						2016 unaudited						2017 unaudited						2018 unaudited						2019 unaudited						2020
2011						$	215,493					$	195,232					$	176,170					$	162,993					$	159,174					$	158,465					$	156,150					$	152,082					$	150,971					$	150,459					$	—					N/A
2012												150,570						123,288						108,787						102,254						99,998						99,178						97,143						97,252						96,637						132						N/A
2013																		69,044						49,507						37,714						33,143						30,567						29,848						28,910						29,060						(132)						N/A
2014																								46,774						32,188						26,438						23,491						21,671						20,957						20,845						(10)						N/A
2015																														34,895						19,282						12,724						6,643						4,746						4,102						67						N/A
2016																																				26,671						19,556						15,313						11,487						9,027						1,302						N/A
2017																																										82,521						49,340						46,354						32,747						87						N/A
2018																																																75,309						63,106						44,448						5,855						N/A
2019																																																						51,202						35,789						9,545						N/A
2020																																																												273,069						50,368						N/A
																																																						Total						$	696,183
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance
2011						$	63,175					$	89,042					$	122,060					$	137,400					$	143,141					$	145,774					$	147,929					$	148,338					$	148,929					$	148,403
2012												25,850						70,843						83,929						90,834						92,993						94,122						94,732						95,419						95,521
2013																		12,283						19,701						24,911						26,953						28,859						29,117						29,119						29,846
2014																								13,702						20,635						19,293						20,170						19,786						19,993						20,146
2015																														(3,161)						(1,825)						2,660						2,959						2,537						2,630
2016																																				(6,752)						2,646						3,057						4,515						3,803
2017																																										30,173						30,224						34,534						24,209
2018																																																25,505						14,232						26,189
2019																																																						3,878						17,393
2020																																																												53,495
																														Total																														421,635
																														All outstanding liabilities before 2011, net of reinsurance																														1,624
																								Liabilities for losses and loss adjustment expenses, net of reinsurance																																				$	276,172

Property excluding property catastrophe ($000’s)
Incurred losses and allocated loss adjustment expenses, net of reinsurance																																																																		December 31, 2020
																																																																		Total of IBNR liabilities plus expected development on reported claims						Cumulative number of reported claims
						Year ended December 31,
Accident year						2011 unaudited						2012 unaudited						2013 unaudited						2014 unaudited						2015 unaudited						2016 unaudited						2017 unaudited						2018 unaudited						2019 unaudited						2020
2011						$	208,318					$	180,624					$	168,122					$	164,414					$	160,264					$	158,952					$	156,647					$	155,606					$	154,261					$	152,753					$	801					N/A
2012												156,980						122,552						124,408						119,838						115,425						113,201						111,722						109,122						103,596						251						N/A
2013																		116,130						77,474						71,100						66,669						64,950						64,162						62,949						63,769						770						N/A
2014																								144,299						118,056						99,891						91,272						88,994						84,679						82,899						2,063						N/A
2015																														215,856						189,735						185,288						189,702						188,992						177,928						12,275						N/A
2016																																				178,103						147,154						139,032						138,008						141,789						15,986						N/A
2017																																										262,387						245,333						231,062						223,442						17,528						N/A
2018																																																223,917						241,754						238,162						18,520						N/A
2019																																																						219,130						209,696						32,266						N/A
2020																																																												387,907						167,596						N/A
																																																						Total						$	1,781,941
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance
2011						$	47,949					$	122,137					$	142,081					$	146,626					$	148,684					$	149,788					$	150,028					$	150,302					$	151,322					$	150,417
2012												26,158						78,416						93,752						102,445						103,452						104,091						103,274						103,216						103,076
2013																		26,068						43,068						50,208						53,389						54,202						56,090						61,601						62,591
2014																								23,641						63,144						72,133						77,098						78,753						79,146						79,009
2015																														75,725						119,578						150,207						161,447						166,632						160,271
2016																																				33,418						96,174						99,954						105,486						113,336
2017																																										25,807						118,658						148,638						156,523
2018																																																29,724						108,263						153,599
2019																																																						43,809						125,698
2020																																																												102,474
																														Total																														1,206,994
																														All outstanding liabilities before 2011, net of reinsurance																														6,125
																								Liabilities for losses and loss adjustment expenses, net of reinsurance																																				$	581,072

Marine and aviation ($000’s)
Incurred losses and allocated loss adjustment expenses, net of reinsurance																																																																		December 31, 2020
																																																																		Total of IBNR liabilities plus expected development on reported claims						Cumulative number of reported claims
						Year ended December 31,
Accident year						2011 unaudited						2012 unaudited						2013 unaudited						2014 unaudited						2015 unaudited						2016 unaudited						2017 unaudited						2018 unaudited						2019 unaudited						2020
2011						$	39,359					$	32,956					$	35,889					$	32,436					$	28,811					$	27,213					$	27,264					$	24,871					$	23,792					$	23,517					$	1,317					N/A
2012												59,117						58,956						55,172						52,428						51,223						49,865						46,183						43,165						41,316						2,228						N/A
2013																		39,538						38,509						37,545						36,101						35,993						35,248						34,806						31,087						5,039						N/A
2014																								31,333						29,576						27,763						26,059						24,050						23,695						22,347						5,044						N/A
2015																														34,066						37,875						31,953						31,910						30,964						28,618						4,738						N/A
2016																																				27,409						22,804						23,622						19,344						17,029						8,230						N/A
2017																																										28,868						26,407						23,878						20,853						6,783						N/A
2018																																																28,355						26,395						24,957						7,490						N/A
2019																																																						49,466						55,921						17,208						N/A
2020																																																												84,238						58,896						N/A
																																																						Total						$	349,883
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance
2011						$	4,421					$	12,122					$	16,530					$	19,235					$	15,959					$	16,634					$	21,988					$	21,911					$	21,973					$	21,979
2012												2,664						11,480						27,623						33,428						35,174						36,379						37,871						38,164						38,257
2013																		5,109						14,330						19,075						22,111						23,135						24,427						24,804						24,520
2014																								4,373						8,221						11,872						12,748						14,939						15,376						16,253
2015																														11						13,476						19,120						20,971						22,773						22,456
2016																																				(7,300)						(1,655)						552						3,292						5,900
2017																																										1,659						6,546						9,372						11,037
2018																																																2,006						7,087						11,384
2019																																																						11,015						21,930
2020																																																												9,339
																														Total																														183,055
																														All outstanding liabilities before 2011, net of reinsurance																														16,534
																								Liabilities for losses and loss adjustment expenses, net of reinsurance																																				$	183,362

Other specialty ($000’s)
Incurred losses and allocated loss adjustment expenses, net of reinsurance																																																																		December 31, 2020
																																																																		Total of IBNR liabilities plus expected development on reported claims						Cumulative number of reported claims
						Year ended December 31,
Accident year						2011 unaudited						2012 unaudited						2013 unaudited						2014 unaudited						2015 unaudited						2016 unaudited						2017 unaudited						2018 unaudited						2019 unaudited						2020
2011						$	115,554					$	100,395					$	96,117					$	94,512					$	92,703					$	91,334					$	90,727					$	88,820					$	89,163					$	87,648					$	1,058					N/A
2012												231,531						219,627						209,355						203,114						200,945						203,898						202,085						196,309						187,908						4,635						N/A
2013																		259,594						232,427						222,046						218,354						219,314						216,861						216,579						210,455						10,351						N/A
2014																								283,138						263,653						265,417						258,595						253,373						255,341						250,825						15,127						N/A
2015																														217,666						208,927						207,220						204,179						204,458						201,046						19,996						N/A
2016																																				231,160						228,501						222,788						217,054						223,777						18,179						N/A
2017																																										282,024						271,084						260,051						259,041						40,904						N/A
2018																																																338,298						334,567						326,027						53,316						N/A
2019																																																						378,545						358,997						80,438						N/A
2020																																																												551,374						259,496						N/A
																																																						Total						$	2,657,098
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance
2011						$	29,717					$	59,715					$	72,298					$	77,018					$	80,642					$	82,468					$	84,815					$	85,960					$	85,643					$	85,854
2012												47,484						126,138						149,753						161,073						169,096						173,202						177,742						179,614						179,943
2013																		58,962						122,813						149,617						166,100						175,892						181,279						188,746						189,147
2014																								71,006						151,115						187,560						201,189						207,965						219,234						221,978
2015																														56,438						118,770						143,690						150,969						160,243						168,314
2016																																				67,730						143,624						168,425						180,542						192,947
2017																																										76,847						171,632						201,378						209,005
2018																																																75,395						211,954						243,257
2019																																																						84,416						167,055
2020																																																												101,559
																														Total																														1,759,059
																														All outstanding liabilities before 2011, net of reinsurance																														8,956
																								Liabilities for losses and loss adjustment expenses, net of reinsurance																																				$	906,995

Percentage annual payout by age

The following table presents the average annual percentage payout of incurred losses and allocated loss adjustment expenses by age, net of reinsurance, as of December 31, 2020:

						Average annual percentage payout of incurred losses and allocated loss adjustment expenses by age, net of reinsurance
						Year 1						Year 2						Year 3						Year 4						Year 5						Year 6						Year 7						Year 8						Year 9						Year 10
Casualty						2.4		%				7.2		%				11.2		%				12.2		%				10.3		%				8.4		%				7.3		%				5.7		%				4.8		%				3.7		%
Property catastrophe						20.5		%				30.2		%				25.1		%				2.9		%				(1.2)		%				1.4		%				0.7		%				1.2		%				0.2		%				(0.3)		%
Property excluding property catastrophe						26.4		%				39.5		%				12.8		%				5.2		%				2.3		%				0.2		%				2.0		%				0.6		%				0.3		%				(0.6)		%
Marine and aviation						6.5		%				27.2		%				19.1		%				10.0		%				4.2		%				2.2		%				7.9		%				(0.2)		%				0.2		%				—		%
Other specialty						26.9		%				33.9		%				12.3		%				5.2		%				4.3		%				3.1		%				2.4		%				0.8		%				(0.1)		%				0.2		%

Mortgage

Claims Development [Line Items]

Claims development tables

The following table presents information on the mortgage segment’s short-duration insurance contracts:

Direct mortgage insurance business in the U.S. ($000’s except claim count)
Incurred losses and allocated loss adjustment expenses, net of reinsurance																																																												December 31, 2020
																																																															Total of IBNR liabilities plus expected development on reported claims						Cumulative number of paid claims
Year ended December 31,
Accident year						2012 unaudited						2013 unaudited						2014 unaudited						2015 unaudited						2016 unaudited						2017 unaudited						2018 unaudited						2019 unaudited									2020
2012						$	520,835					$	480,592					$	475,317					$	469,238					$	467,296					$	459,467					$	458,065					$	456,286								$	456,331					5						15,083
2013												469,311						419,668						411,793						405,809						395,693						393,149						390,987									391,062						3						9,471
2014																		316,095						297,151						279,434						266,027						265,992						261,091									262,682						7						6,290
2015																								222,790						197,238						198,001						194,677						189,235									190,913						4						4,543
2016																														183,556						170,532						148,715						140,608									142,392						7						3,411
2017																																				179,376						132,220						107,255									108,181						630						2,429
2018																																										132,318						96,357									89,120						1,281						1,512
2019																																																108,424									119,253						2,921						566
2020																																																									420,003						15,879						32
																																																Total									$	2,179,937
Cumulative paid losses and allocated loss adjustment expenses, net of reinsurance
2012						(106,065)						186,605						327,605						395,695						426,024						441,577						448,151						452,348									453,587
2013												41,447						203,957						308,956						353,189						373,909						382,200						386,853									387,894
2014																		20,099						129,159						201,925						233,879						247,038						254,175									256,285
2015																								16,159						92,431						151,222						171,337						180,321									183,472
2016																														11,462						72,201						113,357						127,286									131,161
2017																																				8,622						48,112						78,650									87,317
2018																																										3,966						31,478									50,135
2019																																																2,899									20,105
2020																																																									1,040
																																																									1,570,996
																														All outstanding liabilities before 2012, net of reinsurance																											14,504
																								Liabilities for losses and loss adjustment expenses, net of reinsurance																																	$	623,445

Percentage annual payout by age

The following table presents the average annual percentage payout of incurred losses and allocated loss adjustment expenses by age, net of reinsurance, as of December 31, 2020:

Average annual percentage payout of incurred losses and allocated loss adjustment expenses by age, net of reinsurance
						Year 1						Year 2						Year 3						Year 4						Year 5						Year 6						Year 7						Year 8						Year 9
U.S. Primary						3.0		%				39.0		%				27.8		%				11.1		%				4.9		%				2.5		%				1.1		%				0.6		%				0.3		%

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