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Portfolio Loans - Schedule of loan modifications made to borrowers experiencing financial difficulty (Details) $ in Thousands | 3 Months Ended
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Mar. 31, 2023 USD ($)
Payment Deferral1 |
Loans identified as impaired |
Interest Rate Reduction | $ 489
% of Total Class of Financing Receivable | 0.00%
Payment Deferral1 | Commercial |
Loans identified as impaired |
Interest Rate Reduction | $ 489
% of Total Class of Financing Receivable | 0.00%
Payment Deferral1 | Commercial real estate |
Loans identified as impaired |
Interest Rate Reduction | $ 0
% of Total Class of Financing Receivable | 0.00%
Term Extension3 |
Loans identified as impaired |
Interest Rate Reduction | $ 37,853
% of Total Class of Financing Receivable | 0.50%
Term Extension3 | Commercial |
Loans identified as impaired |
Interest Rate Reduction | $ 25,155
% of Total Class of Financing Receivable | 1.30%
Term Extension3 | Commercial real estate |
Loans identified as impaired |
Interest Rate Reduction | $ 12,698
% of Total Class of Financing Receivable | 0.40%

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- Definition Financing Receivable, Excluding Accrued Interest, Modified Period + References No definition available. + Details
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Namespace Prefix: | buse_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Financing Receivable, Modification To Total Financing Receivables, Excluding Accrued Interest, Percent + References No definition available. + Details
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Namespace Prefix: | buse_
Data Type: | dtr-types:percentItemType
Balance Type: | na
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- 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
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- Details
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Namespace Prefix: |
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- Details
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- Details
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Namespace Prefix: |
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Balance Type: |
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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |