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Loans - Summary of Company's Carrying Value of Non-Accrual TDR's (Details) - Non-Accruing TDR [Member] $ in Thousands | Dec. 31, 2022 USD ($)
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Loans [Line Items] |
Carrying Value of Non - Accruing TDR's | $ 2,478
Commercial Portfolio Segment [Member] |
Loans [Line Items] |
Carrying Value of Non - Accruing TDR's | 356
Commercial Real Estate Portfolio Segment [Member] |
Loans [Line Items] |
Carrying Value of Non - Accruing TDR's | 81
Residential Portfolio Segment [Member] |
Loans [Line Items] |
Carrying Value of Non - Accruing TDR's | $ 2,041

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- Definition Loans [Line Items] + References No definition available. + Details
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Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Carrying value of troubled debt restructuring on nonaccrual status. + References No definition available. + Details
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Namespace Prefix: | nbhc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Details
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Period Type: |

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

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- Details
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Balance Type: |
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- Details
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Balance Type: |
Period Type: |