XML 76 R61.htm IDEA: XBRL DOCUMENT v3.24.0.1

SIGNIFICANT ACCOUNTING POLICIES - Portfolio Loans (Details) - PPP Loans - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Loans
PPP loans outstanding	$ 0.3	$ 0.9
Amortized cost of the loans outstanding	0.3	0.8
Loans outstanding, fees received	0.0	2.5	$ 20.1
Incurred incremental direct origination costs	0.0	0.6	4.2
Net interest income for fees	$ 0.0	$ 1.9	$ 14.0
Percentage of remaining loan maintains government guarantee	100.00%

X

- Definition

Represents the amortized cost of the loans outstanding related to the PPP (paycheck protection program).

+ References

No definition available.

+ Details

Name:	buse_FinancingReceivableAmortizedCostCaresAct
Namespace Prefix:	buse_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Represents the fees received related to the PPP (Paycheck Protection Program).

+ References

No definition available.

+ Details

Name:	buse_FinancingReceivableFeesCaresAct
Namespace Prefix:	buse_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Represents the incurred incremental direct origination costs related to the PPP (Paycheck Protection Program).

+ References

No definition available.

+ Details

Name:	buse_FinancingReceivableLoanOriginationCostsCaresAct
Namespace Prefix:	buse_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Represents net interest income for fees, net of deferred cost.

+ References

No definition available.

+ Details

Name:	buse_NetInterestIncomeForFeesNetOfDeferredCost
Namespace Prefix:	buse_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Percentage of remaining balance after loan forgiveness maintains a government guarantee.

+ References

No definition available.

+ Details

Name:	buse_PercentageOfRemainingLoanMaintainsGovernmentGuarantee
Namespace Prefix:	buse_
Data Type:	dtr-types1:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Amortized cost, before allowance for credit loss, fee, and loan in process, of financing receivable. Excludes financing receivable covered under loss sharing agreement and net investment in lease.

+ References

Reference 1: 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

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481990/310-10-45-2

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 942
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(7))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479853/942-210-S99-1

+ Details

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

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 5
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479319/326-20-50-5

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 55
-Paragraph 79
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479294/326-20-55-79

+ Details

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

X

- Details

Name:	us-gaap_LoansInsuredOrGuaranteedByGovernmentAuthoritiesAxis=buse_PaycheckProtectionProgramMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: