XML 54 R44.htm IDEA: XBRL DOCUMENT
v3.19.1

Summary of Held-to-Maturity and Available-for-Sale Securities Having Continuous Unrealized Loss Position (Detail) - USD ($) $ in Thousands | Mar. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Debt Securities |  |
Schedule of Investments [Line Items] |  |
Temporarily Impaired Available-for-Sale Securities, Less than Twelve Months Fair Value | $ 1,601,085 | $ 2,054,583
Temporarily Impaired Available-for-Sale Securities, Less than Twelve Months Unrealized Loss | 13,848 | 40,139
Temporarily Impaired Available-for-Sale Securities, Twelve Months or Longer Fair Value | 813,733 | 759,881
Temporarily Impaired Available-for-Sale Securities, Twelve Months or Longer Unrealized Loss | 16,095 | 22,547
Temporarily Impaired Available-for-Sale Securities, Total Fair Value | 2,414,818 | 2,814,464
Temporarily Impaired Available-for-Sale Securities, Total Unrealized Loss | 29,943 | 62,686
Debt Securities | GSE certificates |  |
Schedule of Investments [Line Items] |  |
Temporarily Impaired Available-for-Sale Securities, Less than Twelve Months Fair Value | 0 | 576,970
Temporarily Impaired Available-for-Sale Securities, Less than Twelve Months Unrealized Loss | 0 | 10,598
Temporarily Impaired Available-for-Sale Securities, Twelve Months or Longer Fair Value | 440,027 | 232,969
Temporarily Impaired Available-for-Sale Securities, Twelve Months or Longer Unrealized Loss | 6,663 | 5,363
Temporarily Impaired Available-for-Sale Securities, Total Fair Value | 440,027 | 809,939
Temporarily Impaired Available-for-Sale Securities, Total Unrealized Loss | 6,663 | 15,961
Debt Securities | GSE CMOs |  |
Schedule of Investments [Line Items] |  |
Temporarily Impaired Available-for-Sale Securities, Less than Twelve Months Fair Value | 428,352 | 465,779
Temporarily Impaired Available-for-Sale Securities, Less than Twelve Months Unrealized Loss | 1,894 | 1,892
Temporarily Impaired Available-for-Sale Securities, Twelve Months or Longer Fair Value | 146,100 | 99,050
Temporarily Impaired Available-for-Sale Securities, Twelve Months or Longer Unrealized Loss | 2,133 | 2,348
Temporarily Impaired Available-for-Sale Securities, Total Fair Value | 574,452 | 564,829
Temporarily Impaired Available-for-Sale Securities, Total Unrealized Loss | 4,027 | 4,240
Debt Securities | U.S. Treasury obligations |  |
Schedule of Investments [Line Items] |  |
Temporarily Impaired Available-for-Sale Securities, Less than Twelve Months Fair Value | 218,933 | 276,113
Temporarily Impaired Available-for-Sale Securities, Less than Twelve Months Unrealized Loss | 1,171 | 2,629
Temporarily Impaired Available-for-Sale Securities, Twelve Months or Longer Fair Value | 127,748 | 329,372
Temporarily Impaired Available-for-Sale Securities, Twelve Months or Longer Unrealized Loss | 444 | 6,359
Temporarily Impaired Available-for-Sale Securities, Total Fair Value | 346,681 | 605,485
Temporarily Impaired Available-for-Sale Securities, Total Unrealized Loss | 1,615 | 8,988
Debt Securities | Municipal bonds |  |
Schedule of Investments [Line Items] |  |
Temporarily Impaired Available-for-Sale Securities, Less than Twelve Months Fair Value | 0 | 5,876
Temporarily Impaired Available-for-Sale Securities, Less than Twelve Months Unrealized Loss | 0 | 21
Temporarily Impaired Available-for-Sale Securities, Twelve Months or Longer Fair Value | 49,612 | 48,837
Temporarily Impaired Available-for-Sale Securities, Twelve Months or Longer Unrealized Loss | 1,502 | 2,542
Temporarily Impaired Available-for-Sale Securities, Total Fair Value | 49,612 | 54,713
Temporarily Impaired Available-for-Sale Securities, Total Unrealized Loss | 1,502 | 2,563
Debt Securities | Capital trust notes |  |
Schedule of Investments [Line Items] |  |
Temporarily Impaired Available-for-Sale Securities, Less than Twelve Months Fair Value | 0 | 0
Temporarily Impaired Available-for-Sale Securities, Less than Twelve Months Unrealized Loss | 0 | 0
Temporarily Impaired Available-for-Sale Securities, Twelve Months or Longer Fair Value | 38,811 | 38,360
Temporarily Impaired Available-for-Sale Securities, Twelve Months or Longer Unrealized Loss | 4,983 | 5,422
Temporarily Impaired Available-for-Sale Securities, Total Fair Value | 38,811 | 38,360
Temporarily Impaired Available-for-Sale Securities, Total Unrealized Loss | 4,983 | 5,422
Debt Securities | Asset-backed Securities |  |
Schedule of Investments [Line Items] |  |
Temporarily Impaired Available-for-Sale Securities, Less than Twelve Months Fair Value | 237,208 | 69,166
Temporarily Impaired Available-for-Sale Securities, Less than Twelve Months Unrealized Loss | 1,757 | 430
Temporarily Impaired Available-for-Sale Securities, Twelve Months or Longer Fair Value | 0 | 0
Temporarily Impaired Available-for-Sale Securities, Twelve Months or Longer Unrealized Loss | 0 | 0
Temporarily Impaired Available-for-Sale Securities, Total Fair Value | 237,208 | 69,166
Temporarily Impaired Available-for-Sale Securities, Total Unrealized Loss | 1,757 | 430
Debt Securities | Corporate Bond Securities |  |
Schedule of Investments [Line Items] |  |
Temporarily Impaired Available-for-Sale Securities, Less than Twelve Months Fair Value | 701,445 | 642,843
Temporarily Impaired Available-for-Sale Securities, Less than Twelve Months Unrealized Loss | 8,881 | 23,105
Temporarily Impaired Available-for-Sale Securities, Twelve Months or Longer Fair Value | 0 | 0
Temporarily Impaired Available-for-Sale Securities, Twelve Months or Longer Unrealized Loss | 0 | 0
Temporarily Impaired Available-for-Sale Securities, Total Fair Value | 701,445 | 642,843
Temporarily Impaired Available-for-Sale Securities, Total Unrealized Loss | 8,881 | 23,105
Equity securities |  |
Schedule of Investments [Line Items] |  |
Temporarily Impaired Available-for-Sale Securities, Less than Twelve Months Fair Value | 15,147 | 17,836
Temporarily Impaired Available-for-Sale Securities, Less than Twelve Months Unrealized Loss | 145 | 1,464
Temporarily Impaired Available-for-Sale Securities, Twelve Months or Longer Fair Value | 11,435 | 11,293
Temporarily Impaired Available-for-Sale Securities, Twelve Months or Longer Unrealized Loss | 370 | 513
Temporarily Impaired Available-for-Sale Securities, Total Fair Value | 26,582 | 29,129
Temporarily Impaired Available-for-Sale Securities, Total Unrealized Loss | $ 515 | $ 1,977

X
- Definition Amount of accumulated unrealized loss on investments in debt and equity securities classified as available-for-sale that have been in a continuous loss position for twelve months or longer. + References No definition available. + Details
Name: | us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of accumulated unrealized loss on investments in debt and equity securities classified as available-for-sale in a continuous loss position. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27337-111563 + Details
Name: | us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAccumulatedLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition This item represents the aggregate fair value of investments in debt and equity securities in an unrealized loss position which are categorized neither as held-to-maturity nor trading securities. + References No definition available. + Details
Name: | us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of accumulated unrealized loss on investments in debt and equity securities classified as available-for-sale that have been in a continuous loss position for less than twelve months. + References No definition available. + Details
Name: | us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition This item represents the aggregate fair value of investments in debt and equity securities categorized neither as held-to-maturity nor trading securities that have been in a continuous unrealized loss position for less than twelve months. + References No definition available. + Details
Name: | us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition This item represents the aggregate fair value of investments in debt and equity securities categorized neither as held-to-maturity nor trading securities that have been in a continuous unrealized loss position for twelve months or longer. + References No definition available. + Details
Name: | us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
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_ScheduleOfInvestmentsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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

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

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

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

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

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

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

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

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