XML 88 R76.htm IDEA: XBRL DOCUMENT
v3.19.1

Regulatory Capital Requirements - Capital Conservation Buffer (Details) | Mar. 31, 2019 | Jan. 01, 2016
--- | --- | ---
Regulatory Capital Requirements |  |
Initial capital conservation buffer (as a percent) |  | 0.625%
Capital conservation buffer annual increase after initial year (as a percent) | 0.625% |
Capital conservation buffer final level (as a percent) | 2.50% |

X
- Definition Capital conservation buffer annual increase as a percentage of risk weighted assets after year one as defined by regulations. + References No definition available. + Details
Name: | fhb_CapitalConservationBufferAnnualIncreasePercentageOfRiskWeightedAssetsAfterYearOne
Namespace Prefix: | fhb_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition The maximum capital conservation buffer as a percentage of risk weighted assets as defined by regulations. + References No definition available. + Details
Name: | fhb_CapitalConservationBufferPercentageOfRiskWeightedAssetsMaximum
Namespace Prefix: | fhb_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Capital conservation buffer as a percentage of risk weighted assets in year one as defined by regulations. + References No definition available. + Details
Name: | fhb_CapitalConservationBufferPercentageOfRiskWeightedAssetsYearOne
Namespace Prefix: | fhb_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- References No definition available. + Details
Name: | us-gaap_RegulatoryCapitalRequirementsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration