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v3.23.1

Basis of Presentation (Details) | 3 Months Ended
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Mar. 31, 2023 item
Basis of Presentation |
Number of full service banking offices | 95

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- Definition Represents the number of full service banking offices. + References No definition available. + Details
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Namespace Prefix: | nbhc_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

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