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Revenue Recognition - Service Charged on Deposit Accounts (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2021 | Mar. 31, 2020
Disaggregation of Revenue [Line Items] |  |
Service fees on deposit accounts | $ 1,790 | $ 4,133
Wire transfer fees | 844 | 998
Wire transfer fees |  |
Disaggregation of Revenue [Line Items] |  |
Wire transfer fees | 703 | 806
Foreign exchange fees |  |
Disaggregation of Revenue [Line Items] |  |
Wire transfer fees | 141 | 192
Noninterest Bearing Deposits |  |
Disaggregation of Revenue [Line Items] |  |
Service fees on deposit accounts | 1,765 | 4,109
Noninterest Bearing Deposits | Monthly service charges |  |
Disaggregation of Revenue [Line Items] |  |
Service fees on deposit accounts | 283 | 368
Noninterest Bearing Deposits | Customer analysis charges |  |
Disaggregation of Revenue [Line Items] |  |
Service fees on deposit accounts | 696 | 1,870
Noninterest Bearing Deposits | NSF charges |  |
Disaggregation of Revenue [Line Items] |  |
Service fees on deposit accounts | 697 | 1,655
Noninterest Bearing Deposits | Other service charges |  |
Disaggregation of Revenue [Line Items] |  |
Service fees on deposit accounts | 89 | 216
Interest-bearing Deposits | Monthly service charges |  |
Disaggregation of Revenue [Line Items] |  |
Service fees on deposit accounts | $ 25 | $ 24

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- Definition Fees and Commissions, Depositor Accounts1 + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Wire Transfer Fees + References No definition available. + Details
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Namespace Prefix: | hope_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- 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
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- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
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Balance Type: |
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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |

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- Details
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