XML 65 R56.htm IDEA: XBRL DOCUMENT v3.23.3

Non-Marketable Securities - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Non-marketable Securities
Purchase of non-marketable securities			$ 93,900	$ 11,500
Proceeds from non-marketable securities			90,293	64
Alternative investments measured using the equity method	$ 0		0
Impairments on equity securities			4,000		$ 0
Unrealized gains (losses)	$ 0	$ 1,300	$ (400)	$ 1,400

X

- Definition

Disclosure - Non-Marketable Securities (Narrative) [Abstract]

+ References

No definition available.

+ Details

Name:	nbhc_DisclosureNonMarketableSecuritiesNarrativeAbstract
Namespace Prefix:	nbhc_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amount of unrealized gain (loss) on equity method investments.

+ References

No definition available.

+ Details

Name:	nbhc_EquityMethodInvestmentUnrealizedGainLoss
Namespace Prefix:	nbhc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Amount of cash outflow to acquire non-marketable securities.

+ References

No definition available.

+ Details

Name:	nbhc_PaymentsToAcquireNonmarketableSecurities
Namespace Prefix:	nbhc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Amount of cash inflow from sale of non-marketable securities.

+ References

No definition available.

+ Details

Name:	nbhc_ProceedsFromSaleOfNonmarketableSecurities
Namespace Prefix:	nbhc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Amount of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 944
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(1)(b))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479440/944-210-S99-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(2))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 825
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 1A
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482736/825-10-45-1A

+ Details

Name:	us-gaap_EquitySecuritiesFvNiCurrentAndNoncurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Amount of impairment loss on investment in equity security without readily determinable fair value.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 321
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479536/321-10-50-3

+ Details

Name:	us-gaap_EquitySecuritiesWithoutReadilyDeterminableFairValueImpairmentLossAnnualAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration