XML 81 R49.htm IDEA: XBRL DOCUMENT
v3.20.1

Note 7 - Investment Securities - Temporarily Impaired Securities (Details) $ in Thousands | Mar. 31, 2020 USD ($) | Dec. 31, 2019 USD ($)
--- | --- | ---
Temporarily impaired securities, less than 12 months, fair value | $ 177,752 | $ 144,339
Temporarily impaired securities, less than 12 months, unrealized losses | $ 1,766 | $ 231
Temporarily impaired securities, less than 12 months, no. Of issuances | 34,819 | 349,366
Temporarily impaired securities, 12 months or longer, fair value | $ 1,069 | $ 1,509
Temporarily impaired securities, 12 months or longer, unrealized losses | $ 212,571 | $ 493,705
Temporarily impaired securities, 12 months or longer, no. Of issuances | 2,835 | 1,740
US Government Corporations and Agencies Securities [Member] |  |
Temporarily impaired securities, less than 12 months, fair value | $ 57,554 | $ 48,829
Temporarily impaired securities, less than 12 months, unrealized losses | $ 240 | $ 172
Temporarily impaired securities, less than 12 months, no. Of issuances | 3,034 | 3,570
Temporarily impaired securities, 12 months or longer, fair value | $ 151 | $ 147
Temporarily impaired securities, 12 months or longer, unrealized losses | $ 60,588 | $ 52,399
Temporarily impaired securities, 12 months or longer, no. Of issuances | 391 | 319
Collateralized Mortgage Backed Securities [Member] |  |
Temporarily impaired securities, less than 12 months, fair value | $ 693 | $ 43,719
Temporarily impaired securities, less than 12 months, unrealized losses | $ 4 | $ 36
Temporarily impaired securities, less than 12 months, no. Of issuances | 11,585 | 120,801
Temporarily impaired securities, 12 months or longer, fair value | $ 659 | $ 788
Temporarily impaired securities, 12 months or longer, unrealized losses | $ 12,278 | $ 164,520
Temporarily impaired securities, 12 months or longer, no. Of issuances | 663 | 824
US Government-sponsored Enterprises Debt Securities [Member] |  |
Temporarily impaired securities, less than 12 months, fair value |  | $ 0
Temporarily impaired securities, less than 12 months, unrealized losses |  | $ 0
Temporarily impaired securities, less than 12 months, no. Of issuances |  | 224,443
Temporarily impaired securities, 12 months or longer, fair value |  | $ 557
Temporarily impaired securities, 12 months or longer, unrealized losses |  | $ 224,443
Temporarily impaired securities, 12 months or longer, no. Of issuances |  | 557
Collateralized Mortgage Obligations [Member] |  |
Temporarily impaired securities, less than 12 months, fair value | $ 0 | $ 0
Temporarily impaired securities, less than 12 months, unrealized losses | $ 0 | $ 0
Temporarily impaired securities, less than 12 months, no. Of issuances | 448 | 552
Temporarily impaired securities, 12 months or longer, fair value | $ 11 | $ 17
Temporarily impaired securities, 12 months or longer, unrealized losses | $ 448 | $ 552
Temporarily impaired securities, 12 months or longer, no. Of issuances | 11 | 17
Corporate Debt Securities [Member] |  |
Temporarily impaired securities, less than 12 months, fair value | $ 119,505 | $ 51,791
Temporarily impaired securities, less than 12 months, unrealized losses | $ 1,522 | $ 23
Temporarily impaired securities, less than 12 months, no. Of issuances | 19,752 | 0
Temporarily impaired securities, 12 months or longer, fair value | $ 248 | $ 0
Temporarily impaired securities, 12 months or longer, unrealized losses | $ 139,257 | $ 51,791
Temporarily impaired securities, 12 months or longer, no. Of issuances | 1,770 | 23

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 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 Number of investment positions in available-for-sale investments in a continuous unrealized loss position for less than one year or normal operating cycle, if longer, for which an other-than-temporary impairment (OTTI) has not been recognized in the income statement. + References No definition available. + Details
Name: | us-gaap_AvailableForSaleSecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositionsLessThanOneYear
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of investment positions in available-for-sale investments that have been in a continuous unrealized loss position for greater than or equal to a year for which an other-than-temporary impairment (OTTI) has not been recognized in the income statement. + References No definition available. + Details
Name: | us-gaap_AvailableforsaleSecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositionsGreaterThanOrEqualToOneYear
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

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

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

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