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Other Real Estate Owned - Narrative (Details) - USD ($) $ in Thousands | 3 Months Ended
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Mar. 31, 2023 | Mar. 31, 2022
Other Real Estate Owned |  |
OREO sales | $ 260 | $ 1,793
(Loss) gain on OREO sales, net | $ (11) | $ 275

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- Definition The cash inflow associated with the sale of other real estate not otherwise defined in the taxonomy net of gains (losses) realized. + References No definition available. + Details
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Namespace Prefix: | nbhc_
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Period Type: | duration

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- Definition The net gain (loss) resulting from sales and other disposals of other real estate owned, increases (decreases) in the valuation allowance for foreclosed real estate, and write-downs of other real estate owned after acquisition or physical possession. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.14(d)) -URI https://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260 + Details
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Balance Type: | credit
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- References No definition available. + Details
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Namespace Prefix: | us-gaap_
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Balance Type: | na
Period Type: | duration