Amount excluding accrued interest, of allowance for credit loss on financing receivable. Excludes net investment in lease.

Name:	us-gaap_FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of allowance for credit loss on financing receivable evaluated on collective basis. Excludes financing receivable evaluated on individual basis.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 4
-Subparagraph (SAB Topic 6.L.5.a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480418/310-10-S99-4

Reference 2: http://fasb.org/us-gaap/role/ref/otherTransitionRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 11B
-Subparagraph (g)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481962/310-10-50-11B

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 30
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479391/326-20-30-2

+ Details

Name:	us-gaap_FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of allowance for credit loss on financing receivable evaluated on individual basis. Excludes financing receivable evaluated on collective basis.

+ References

+ Details

Name:	us-gaap_FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of financing receivable collectively evaluated for credit loss. Excludes financing receivable individually evaluated for credit loss.

+ References

+ Details

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

- References

No definition available.

+ Details

Name:	us-gaap_FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLossAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amortized cost excluding accrued interest, before allowance for credit loss, of financing receivable. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479344/326-20-45-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 3B
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-3B

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 5
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-5

+ Details

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

- Definition

Amount of financing receivable individually evaluated for credit loss. Excludes financing receivable collectively evaluated for credit loss.

+ References

+ Details

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

- References

No definition available.

+ Details

Name:	us-gaap_NotesReceivableNetAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=hbt_CommercialAndIndustrialMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=hbt_CommercialRealEstateOwnerOccupiedMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=hbt_CommercialRealEstateNonOwnerOccupiedMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=hbt_ConstructionAndLandDevelopmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=hbt_MultiFamilyMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=hbt_OneToFourFamilyResidentialMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=hbt_AgriculturalAndFarmlandMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=hbt_MunicipalConsumerAndOtherMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

LOANS AND RELATED ALLOWANCE FOR CREDIT LOSSES - Recorded investments in loans and the allowance for loan losses (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023	Jan. 01, 2023	Dec. 31, 2022	Dec. 31, 2021
Loan balances:
Collectively evaluated for impairment	$ 3,435,363	$ 3,367,513
Individually evaluated for impairment	30,783	36,904
Total	3,466,146	3,404,417
Allowance for credit losses:
Collectively evaluated for impairment	38,978	35,829
Individually evaluated for impairment	3,066	4,219
Allowance for Credit Losses	42,044	40,048	$ 25,333	$ 25,333	$ 23,936
Commercial and industrial
Loan balances:
Collectively evaluated for impairment	427,737	427,528
Individually evaluated for impairment	652	272
Total	428,389	427,800
Allowance for credit losses:
Collectively evaluated for impairment	5,344	4,960
Individually evaluated for impairment	13	20
Allowance for Credit Losses	5,357	4,980		3,279	2,440
Commercial real estate - owner occupied
Loan balances:
Collectively evaluated for impairment	322,159	295,672
Individually evaluated for impairment	157	170
Total	322,316	295,842
Allowance for credit losses:
Collectively evaluated for impairment	3,107	2,272
Individually evaluated for impairment	0	0
Allowance for Credit Losses	3,107	2,272		1,193	1,840
Commercial real estate - non-owner occupied
Loan balances:
Collectively evaluated for impairment	884,832	865,394
Individually evaluated for impairment	14,733	15,287
Total	899,565	880,681
Allowance for credit losses:
Collectively evaluated for impairment	11,201	6,693
Individually evaluated for impairment	506	1,021
Allowance for Credit Losses	11,707	7,714		6,721	8,145
Construction and land development
Loan balances:
Collectively evaluated for impairment	374,408	363,767
Individually evaluated for impairment	249	216
Total	374,657	363,983
Allowance for credit losses:
Collectively evaluated for impairment	4,269	5,998
Individually evaluated for impairment	33	0
Allowance for Credit Losses	4,302	5,998		4,223	4,914
Multi-family
Loan balances:
Collectively evaluated for impairment	431,432	417,608
Individually evaluated for impairment	92	315
Total	431,524	417,923
Allowance for credit losses:
Collectively evaluated for impairment	4,239	3,837
Individually evaluated for impairment	92	0
Allowance for Credit Losses	4,331	3,837		1,472	1,263
One-to-four family residential
Loan balances:
Collectively evaluated for impairment	459,790	486,049
Individually evaluated for impairment	4,178	5,459
Total	463,968	491,508
Allowance for credit losses:
Collectively evaluated for impairment	3,747	4,957
Individually evaluated for impairment	161	247
Allowance for Credit Losses	3,908	5,204		1,759	1,311
Agricultural and farmland
Loan balances:
Collectively evaluated for impairment	293,240	287,150
Individually evaluated for impairment	135	144
Total	293,375	287,294
Allowance for credit losses:
Collectively evaluated for impairment	1,170	975
Individually evaluated for impairment	0	0
Allowance for Credit Losses	1,170	975		796	845
Municipal, consumer, and other
Loan balances:
Collectively evaluated for impairment	241,765	224,345
Individually evaluated for impairment	10,587	15,041
Total	252,352	239,386
Allowance for credit losses:
Collectively evaluated for impairment	5,901	6,137
Individually evaluated for impairment	2,261	2,931
Allowance for Credit Losses	$ 8,162	$ 9,068		$ 5,890	$ 3,178