XML 91 R80.htm IDEA: XBRL DOCUMENT
v3.25.1

Commitments and Contingencies - Schedule of Total Unfunded Commitments (Details) - USD ($) $ in Thousands | Mar. 31, 2025 | Dec. 31, 2024
--- | --- | ---
Commitment And Contingencies [Line Items] |  |
Total unfunded commitments | $ 1,319,991 | $ 1,427,480
Commitments to fund loans |  |
Commitment And Contingencies [Line Items] |  |
Total unfunded commitments | 563,568 | 663,859
Unfunded commitments under lines of credit |  |
Commitment And Contingencies [Line Items] |  |
Total unfunded commitments | 743,862 | 752,861
Commercial and standby letters of credit |  |
Commitment And Contingencies [Line Items] |  |
Total unfunded commitments | $ 12,561 | $ 10,760

X
- Definition Commitment And Contingencies [Line Items] + References No definition available. + Details
Name: | nbhc_CommitmentAndContingenciesLineItems
Namespace Prefix: | nbhc_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Unfunded Loan Commitments. + References No definition available. + Details
Name: | nbhc_UnfundedLoanCommitments
Namespace Prefix: | nbhc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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

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

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