XML 44 R34.htm IDEA: XBRL DOCUMENT
v3.22.2

Investments (Available-For-Sale Securities Disclosure) (Details) - USD ($) $ in Thousands | Jun. 30, 2022 | Mar. 31, 2022 | Dec. 31, 2021 | Jun. 30, 2021 | Mar. 31, 2021 | Dec. 31, 2020
--- | --- | --- | --- | --- | --- | ---
Debt Securities, Available-for-sale [Line Items] |  |  |  |  |  |
Fixed income securities, available-for-sale, amortized cost | $ 6,833,430 |  | $ 6,490,753 |  |  |
Fixed Income Securities, Available-for-sale, Allowance for Credit Loss | (50,800) | $ (37,599) | (9,724) | $ (6,011) | $ (8,781) | $ (3,969)
Unrealized gains | 14,345 |  | 246,301 |  |  |
Unrealized losses | (357,697) |  | (17,354) |  |  |
Debt Securities, Available-for-sale, Fair Value | 6,439,278 |  | 6,709,976 |  |  |
Available-for-sale Securities | U.S. Government and Government Agencies [Member] |  |  |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |  |  |
Fixed income securities, available-for-sale, amortized cost | 125,665 |  | 127,974 |  |  |
Fixed Income Securities, Available-for-sale, Allowance for Credit Loss | 0 |  | 0 |  |  |
Unrealized gains | 76 |  | 3,629 |  |  |
Unrealized losses | (11,396) |  | (1,145) |  |  |
Debt Securities, Available-for-sale, Fair Value | 114,345 |  | 130,458 |  |  |
Available-for-sale Securities | Foreign Government [Member] |  |  |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |  |  |
Fixed income securities, available-for-sale, amortized cost | 16,900 |  | 15,420 |  |  |
Fixed Income Securities, Available-for-sale, Allowance for Credit Loss | (265) | (150) | (46) | (49) | (56) | (1)
Unrealized gains | 1 |  | 609 |  |  |
Unrealized losses | (1,338) |  | (123) |  |  |
Debt Securities, Available-for-sale, Fair Value | 15,298 |  | 15,860 |  |  |
Available-for-sale Securities | Obligations of States and Political Subdivisions [Member] |  |  |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |  |  |
Fixed income securities, available-for-sale, amortized cost | 1,093,211 |  | 1,121,422 |  |  |
Fixed Income Securities, Available-for-sale, Allowance for Credit Loss | (1,206) | (1,991) | (137) | (38) | (201) | (4)
Unrealized gains | 5,791 |  | 68,258 |  |  |
Unrealized losses | (31,558) |  | (235) |  |  |
Debt Securities, Available-for-sale, Fair Value | 1,066,238 |  | 1,189,308 |  |  |
Available-for-sale Securities | Corporate Securities [Member] |  |  |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |  |  |
Fixed income securities, available-for-sale, amortized cost | 2,461,952 |  | 2,478,348 |  |  |
Fixed Income Securities, Available-for-sale, Allowance for Credit Loss | (35,072) | (23,066) | (6,682) | (3,477) | (6,166) | (2,782)
Unrealized gains | 3,651 |  | 106,890 |  |  |
Unrealized losses | (154,204) |  | (4,953) |  |  |
Debt Securities, Available-for-sale, Fair Value | 2,276,327 |  | 2,573,603 |  |  |
Available-for-sale Securities | Collateralized Loan Obligations and Other Asset Backed Securities [Member] |  |  |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |  |  |
Fixed income securities, available-for-sale, amortized cost | 1,518,994 |  | 1,343,687 |  |  |
Fixed Income Securities, Available-for-sale, Allowance for Credit Loss | (3,623) | (2,283) | (939) | (1,399) | (1,470) | (592)
Unrealized gains | 2,906 |  | 14,350 |  |  |
Unrealized losses | (80,499) |  | (6,284) |  |  |
Debt Securities, Available-for-sale, Fair Value | 1,437,778 |  | 1,350,814 |  |  |
Available-for-sale Securities | Residential Mortgage Backed Securities [Member] |  |  |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |  |  |
Fixed income securities, available-for-sale, amortized cost | 971,347 |  | 756,280 |  |  |
Fixed Income Securities, Available-for-sale, Allowance for Credit Loss | (10,616) | (10,029) | (1,909) | (1,034) | (864) | (561)
Unrealized gains | 1,254 |  | 24,813 |  |  |
Unrealized losses | (50,185) |  | (2,932) |  |  |
Debt Securities, Available-for-sale, Fair Value | 911,800 |  | 776,252 |  |  |
Available-for-sale Securities | Commercial Mortgage Backed Securities [Member] |  |  |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |  |  |
Fixed income securities, available-for-sale, amortized cost | 645,361 |  | 647,622 |  |  |
Fixed Income Securities, Available-for-sale, Allowance for Credit Loss | (18) | $ (80) | (11) | $ (14) | $ (24) | $ (29)
Unrealized gains | 666 |  | 27,752 |  |  |
Unrealized losses | (28,517) |  | (1,682) |  |  |
Debt Securities, Available-for-sale, Fair Value | $ 617,492 |  | $ 673,681 |  |  |

X
- Definition Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123581744&loc=d3e27161-111563 + Details
Name: | us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount, before tax, of unrealized loss in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=123581744&loc=d3e27161-111563 + Details
Name: | us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123581744&loc=d3e27161-111563 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=124258926&loc=SL82898722-210454 + Details
Name: | us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(6)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=124258926&loc=SL82898722-210454 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=124260329&loc=d3e26610-111562 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (aa) -URI http://asc.fasb.org/extlink&oid=123581744&loc=d3e27161-111563 + Details
Name: | us-gaap_AvailableForSaleSecuritiesDebtSecurities
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of allowance for credit loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 30 -Section 50 -Paragraph 9 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=124269663&loc=SL82922900-210455 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 30 -Section 50 -Paragraph 9 -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=124269663&loc=SL82922900-210455 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (aaa) -URI http://asc.fasb.org/extlink&oid=123581744&loc=d3e27161-111563 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=124258926&loc=SL82898722-210454 + Details
Name: | us-gaap_DebtSecuritiesAvailableForSaleAllowanceForCreditLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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_ScheduleOfAvailableForSaleSecuritiesLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_InvestmentTypeAxis=us-gaap_AvailableForSaleSecurities
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=us-gaap_USTreasuryAndGovernmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=us-gaap_ForeignGovernmentDebtSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=us-gaap_USStatesAndPoliticalSubdivisionsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=us-gaap_CorporateDebtSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=us-gaap_AssetBackedSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=us-gaap_ResidentialMortgageBackedSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=us-gaap_CommercialMortgageBackedSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |