XML 167 R109.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Reserve for Unpaid Losses and Loss Adjustment Expenses - Average Annual Payout of Incurred Claims by Age, P&C (Details) | Dec. 31, 2017
--- | ---
Workers’ compensation |
Short-duration Insurance Contracts, Historical Claims Duration [Line Items] |
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance, 1st Year | 16.00%
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance, 2nd Year | 19.90%
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance, 3rd Year | 13.10%
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance, 4th Year | 9.20%
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance, 5th Year | 6.40%
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance, 6th Year | 4.70%
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance, 7th Year | 3.50%
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance, 8th Year | 2.70%
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance, 9th Year | 2.00%
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance, 10th Year | 1.70%
General liability |
Short-duration Insurance Contracts, Historical Claims Duration [Line Items] |
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance, 1st Year | 3.70%
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance, 2nd Year | 9.00%
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance, 3rd Year | 16.00%
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance, 4th Year | 17.40%
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance, 5th Year | 13.80%
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance, 6th Year | 9.40%
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance, 7th Year | 7.70%
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance, 8th Year | 3.60%
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance, 9th Year | 2.20%
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance, 10th Year | 1.60%
Package business |
Short-duration Insurance Contracts, Historical Claims Duration [Line Items] |
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance, 1st Year | 38.90%
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance, 2nd Year | 22.00%
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance, 3rd Year | 10.30%
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance, 4th Year | 8.30%
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance, 5th Year | 5.50%
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance, 6th Year | 3.60%
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance, 7th Year | 1.90%
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance, 8th Year | 1.20%
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance, 9th Year | 0.70%
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance, 10th Year | 0.40%
Commercial property |
Short-duration Insurance Contracts, Historical Claims Duration [Line Items] |
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance, 1st Year | 61.80%
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance, 2nd Year | 27.80%
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance, 3rd Year | 4.60%
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance, 4th Year | 1.60%
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance, 5th Year | 0.50%
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance, 6th Year | 0.10%
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance, 7th Year | 0.10%
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance, 8th Year | 0.10%
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance, 9th Year | 0.00%
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance, 10th Year | 0.00%
Commercial automobile liability |
Short-duration Insurance Contracts, Historical Claims Duration [Line Items] |
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance, 1st Year | 17.40%
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance, 2nd Year | 20.50%
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance, 3rd Year | 20.30%
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance, 4th Year | 18.10%
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance, 5th Year | 11.00%
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance, 6th Year | 5.00%
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance, 7th Year | 2.30%
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance, 8th Year | 1.10%
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance, 9th Year | 0.40%
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance, 10th Year | 0.50%
Commercial automobile physical damage |
Short-duration Insurance Contracts, Historical Claims Duration [Line Items] |
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance, 1st Year | 90.10%
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance, 2nd Year | 8.20%
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance, 3rd Year | (0.30%)
Professional liability |
Short-duration Insurance Contracts, Historical Claims Duration [Line Items] |
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance, 1st Year | 5.50%
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance, 2nd Year | 18.50%
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance, 3rd Year | 18.70%
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance, 4th Year | 16.20%
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance, 5th Year | 10.30%
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance, 6th Year | 6.80%
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance, 7th Year | 1.60%
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance, 8th Year | 4.30%
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance, 9th Year | 2.40%
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance, 10th Year | 0.40%
Bond |
Short-duration Insurance Contracts, Historical Claims Duration [Line Items] |
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance, 1st Year | 14.60%
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance, 2nd Year | 26.80%
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance, 3rd Year | 13.60%
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance, 4th Year | 3.70%
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance, 5th Year | 0.90%
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance, 6th Year | 2.00%
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance, 7th Year | 3.80%
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance, 8th Year | 0.00%
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance, 9th Year | (0.10%)
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance, 10th Year | 0.60%
Personal automobile liability |
Short-duration Insurance Contracts, Historical Claims Duration [Line Items] |
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance, 1st Year | 37.60%
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance, 2nd Year | 33.10%
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance, 3rd Year | 15.40%
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance, 4th Year | 7.40%
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance, 5th Year | 3.20%
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance, 6th Year | 1.10%
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance, 7th Year | 0.40%
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance, 8th Year | 0.30%
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance, 9th Year | 0.10%
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance, 10th Year | 0.00%
Personal automobile physical damage |
Short-duration Insurance Contracts, Historical Claims Duration [Line Items] |
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance, 1st Year | 96.50%
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance, 2nd Year | 3.10%
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance, 3rd Year | (0.20%)
Homeowners |
Short-duration Insurance Contracts, Historical Claims Duration [Line Items] |
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance, 1st Year | 72.10%
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance, 2nd Year | 20.80%
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance, 3rd Year | 3.10%
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance, 4th Year | 1.30%
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance, 5th Year | 0.60%
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance, 6th Year | 0.30%
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance, 7th Year | 0.10%
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance, 8th Year | 0.10%
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance, 9th Year | 0.10%
Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance, 10th Year | 0.00%

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_ShortdurationInsuranceContractsHistoricalClaimsDurationLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage of average annual payout, after reinsurance, in the eighth year after a claim is incurred, beginning with the earliest accident year disclosed for short-duration insurance contracts. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 50 -Paragraph 4G -URI http://asc.fasb.org/extlink&oid=65670685&loc=SL65671329-158438 + Details
Name: | us-gaap_ShortdurationInsuranceContractsHistoricalClaimsDurationYearEight
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Percentage of average annual payout, after reinsurance, in the fifth year after a claim is incurred, beginning with the earliest accident year disclosed for short-duration insurance contracts. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 50 -Paragraph 4G -URI http://asc.fasb.org/extlink&oid=65670685&loc=SL65671329-158438 + Details
Name: | us-gaap_ShortdurationInsuranceContractsHistoricalClaimsDurationYearFive
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Percentage of average annual payout, after reinsurance, in the fourth year after a claim is incurred, beginning with the earliest accident year disclosed for short-duration insurance contracts. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 50 -Paragraph 4G -URI http://asc.fasb.org/extlink&oid=65670685&loc=SL65671329-158438 + Details
Name: | us-gaap_ShortdurationInsuranceContractsHistoricalClaimsDurationYearFour
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Percentage of average annual payout, after reinsurance, in the ninth year after a claim is incurred, beginning with the earliest accident year disclosed for short-duration insurance contracts. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 50 -Paragraph 4G -URI http://asc.fasb.org/extlink&oid=65670685&loc=SL65671329-158438 + Details
Name: | us-gaap_ShortdurationInsuranceContractsHistoricalClaimsDurationYearNine
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Percentage of average annual payout, after reinsurance, in the first year after a claim is incurred, beginning with the earliest accident year disclosed for short-duration insurance contracts. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 50 -Paragraph 4G -URI http://asc.fasb.org/extlink&oid=65670685&loc=SL65671329-158438 + Details
Name: | us-gaap_ShortdurationInsuranceContractsHistoricalClaimsDurationYearOne
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Percentage of average annual payout, after reinsurance, in the seventh year after a claim is incurred, beginning with the earliest accident year disclosed for short-duration insurance contracts. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 50 -Paragraph 4G -URI http://asc.fasb.org/extlink&oid=65670685&loc=SL65671329-158438 + Details
Name: | us-gaap_ShortdurationInsuranceContractsHistoricalClaimsDurationYearSeven
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Percentage of average annual payout, after reinsurance, in the sixth year after a claim is incurred, beginning with the earliest accident year disclosed for short-duration insurance contracts. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 50 -Paragraph 4G -URI http://asc.fasb.org/extlink&oid=65670685&loc=SL65671329-158438 + Details
Name: | us-gaap_ShortdurationInsuranceContractsHistoricalClaimsDurationYearSix
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Percentage of average annual payout, after reinsurance, in the tenth year after a claim is incurred, beginning with the earliest accident year disclosed for short-duration insurance contracts. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 50 -Paragraph 4G -URI http://asc.fasb.org/extlink&oid=65670685&loc=SL65671329-158438 + Details
Name: | us-gaap_ShortdurationInsuranceContractsHistoricalClaimsDurationYearTen
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Percentage of average annual payout, after reinsurance, in the third year after a claim is incurred, beginning with the earliest accident year disclosed for short-duration insurance contracts. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 50 -Paragraph 4G -URI http://asc.fasb.org/extlink&oid=65670685&loc=SL65671329-158438 + Details
Name: | us-gaap_ShortdurationInsuranceContractsHistoricalClaimsDurationYearThree
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Percentage of average annual payout, after reinsurance, in the second year after a claim is incurred, beginning with the earliest accident year disclosed for short-duration insurance contracts. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 50 -Paragraph 4G -URI http://asc.fasb.org/extlink&oid=65670685&loc=SL65671329-158438 + Details
Name: | us-gaap_ShortdurationInsuranceContractsHistoricalClaimsDurationYearTwo
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | us-gaap_ProductOrServiceAxis=us-gaap_AccidentAndHealthInsuranceSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ProductOrServiceAxis=us-gaap_GeneralLiabilityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ProductOrServiceAxis=hig_PackageBusinessMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ProductOrServiceAxis=hig_CommercialPropertyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ProductOrServiceAxis=hig_CommercialAutoLiabilityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ProductOrServiceAxis=hig_CommercialAutoPhysicalDamageMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ProductOrServiceAxis=hig_ProfessionalLiabilityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ProductOrServiceAxis=us-gaap_SuretySegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ProductOrServiceAxis=hig_PersonalAutoLiabilityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ProductOrServiceAxis=hig_PersonalAutoPhysicalDamageMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ProductOrServiceAxis=hig_HomeownersMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |