XML 295 R138.htm IDEA: XBRL DOCUMENT
v3.22.4

FAIR VALUE MEASUREMENTS - Schedule of assets and liabilities measured at fair value on a non-recurring basis (Details) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Loans evaluated individually, net of related allowance | $ 15,647 | $ 15,380
OREO with subsequent impairment | 70 | 3,074
Fair Value, Nonrecurring | Loans evaluated individually, net of related allowance |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Loans evaluated individually, net of related allowance | 5,345 | 2,926
Fair Value, Nonrecurring | OREO with subsequent impairment |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
OREO with subsequent impairment |  | 51
Fair Value, Nonrecurring | Bank property held for sale with impairment |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Bank property held for sale with impairment | 7,923 | 10,103
Fair Value, Nonrecurring | Level 1 Inputs | Loans evaluated individually, net of related allowance |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Loans evaluated individually, net of related allowance | 0 | 0
Fair Value, Nonrecurring | Level 1 Inputs | OREO with subsequent impairment |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
OREO with subsequent impairment |  | 0
Fair Value, Nonrecurring | Level 1 Inputs | Bank property held for sale with impairment |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Bank property held for sale with impairment | 0 | 0
Fair Value, Nonrecurring | Level 2 Inputs | Loans evaluated individually, net of related allowance |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Loans evaluated individually, net of related allowance | 0 | 0
Fair Value, Nonrecurring | Level 2 Inputs | OREO with subsequent impairment |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
OREO with subsequent impairment |  | 0
Fair Value, Nonrecurring | Level 2 Inputs | Bank property held for sale with impairment |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Bank property held for sale with impairment | 0 | 0
Fair Value, Nonrecurring | Level 3 Inputs | Loans evaluated individually, net of related allowance |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Loans evaluated individually, net of related allowance | 5,345 | 2,926
Fair Value, Nonrecurring | Level 3 Inputs | OREO with subsequent impairment |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
OREO with subsequent impairment |  | 51
Fair Value, Nonrecurring | Level 3 Inputs | Bank property held for sale with impairment |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Bank property held for sale with impairment | $ 7,923 | $ 10,103

X
- Definition The fair value of bank property held for sale. + References No definition available. + Details
Name: | buse_BankPropertyHeldForSaleFairValueDisclosure
Namespace Prefix: | buse_
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 No definition available. + Details
Name: | us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 14A -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=123577603&loc=SL6953550-111524 + Details
Name: | us-gaap_ImpairedFinancingReceivableRecordedInvestment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Carrying amount as of the balance sheet date of land and buildings obtained through foreclosure proceedings or defeasance in full or partial satisfaction of a debt arrangement. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11 -URI https://asc.fasb.org/extlink&oid=123577603&loc=d3e5162-111524 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 3 -URI https://asc.fasb.org/extlink&oid=124259787&loc=d3e4437-111522 + Details
Name: | us-gaap_RealEstateAcquiredThroughForeclosure
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_FairValueByMeasurementFrequencyAxis=us-gaap_FairValueMeasurementsNonrecurringMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByAssetClassAxis=buse_CollateralDependentLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByAssetClassAxis=us-gaap_RealEstateAcquiredInSatisfactionOfDebtMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByAssetClassAxis=buse_BankPropertyHeldForSaleMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel2Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel3Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |