XML 74 R64.htm IDEA: XBRL DOCUMENT
v3.22.1

Stock-based Compensation - Restricted , Performance and Deferred Stock Units (Details) - USD ($) $ / shares in Units, $ in Thousands |  | 3 Months Ended | 12 Months Ended
--- | --- | --- | ---
Mar. 23, 2022 | Mar. 31, 2022 | Mar. 31, 2021 | Dec. 31, 2021
Additional disclosures |  |  |  |
Compensation expense recognized |  | $ 1,909 | $ 1,448 |
Period over which cost will be recognized |  | 2 years 10 months 24 days |  | 2 years 10 months 24 days
RSU awards |  |  |  |
Shares |  |  |  |
Non-vested at beginning of period (in shares) |  | 1,147,927 |  |
Granted (in shares) |  | 156,483 |  |
Dividend equivalents earned (in shares) |  | 9,671 |  |
Vested (in shares) |  | (13,594) |  |
Forfeited (in shares) |  | (10,298) |  |
Non-vested at end of period (in shares) |  | 1,290,189 |  | 1,147,927
Weighted-Average Grant Date Fair Value |  |  |  |
Non-vested at beginning of period (in dollars per share) |  | $ 23.97 |  |
Granted (in dollars per share) |  | 25.79 |  |
Dividend equivalents earned (in dollars per share) |  | 27.30 |  |
Vested (in dollars per share) |  | 29.73 |  |
Forfeited (in dollars per share) |  | 24.05 |  |
Non-vested at end of period (in dollars per share) |  | $ 24.16 |  | $ 23.97
Additional disclosures |  |  |  |
Compensation expense recognized |  | $ 1,176 | 1,230 |
PSU awards |  |  |  |
Shares |  |  |  |
Non-vested at beginning of period (in shares) |  | 113,915 |  |
Granted (in shares) | 38,774 | 195,240 |  |
Forfeited (in shares) |  | (585) |  |
Non-vested at end of period (in shares) |  | 308,570 |  | 113,915
Weighted-Average Grant Date Fair Value |  |  |  |
Non-vested at beginning of period (in dollars per share) |  | $ 22.86 |  |
Granted (in dollars per share) |  | 25.79 |  |
Forfeited (in dollars per share) |  | 23.48 |  |
Non-vested at end of period (in dollars per share) |  | $ 24.71 |  | $ 22.86
Additional disclosures |  |  |  |
Grant date fair value of the award | $ 1,000 |  |  |
Compensation expense recognized |  | $ 412 | 60 |
PSU awards | Minimum |  |  |  |
Additional disclosures |  |  |  |
Vesting percentage (as a percent) | 0.00% |  |  |
PSU awards | Maximum |  |  |  |
Shares |  |  |  |
Granted (in shares) | 77,548 |  |  |
Additional disclosures |  |  |  |
Vesting percentage (as a percent) | 200.00% |  |  |
DSU awards |  |  |  |
Shares |  |  |  |
Non-vested at beginning of period (in shares) |  | 34,135 |  |
Granted (in shares) |  | 32,658 |  |
Dividend equivalents earned (in shares) |  | 1,107 |  |
Vested (in shares) |  | (32,801) |  |
Non-vested at end of period (in shares) |  | 35,099 |  | 34,135
Vested and Outstanding at end of period (in shares) |  | 130,098 |  |
Weighted-Average Grant Date Fair Value |  |  |  |
Non-vested at beginning of period (in dollars per share) |  | $ 24.59 |  |
Granted (in dollars per share) |  | 25.79 |  |
Dividend equivalents earned (in dollars per share) |  | 27.30 |  |
Vested (in dollars per share) |  | 24.63 |  |
Non-vested at end of period (in dollars per share) |  | 25.75 |  | $ 24.59
Vested and Outstanding at end of period (in dollars per share) |  | $ 22.68 |  |
Additional disclosures |  |  |  |
Compensation expense recognized |  | $ 226 | $ 158 |
Market Based Performance Stock Units |  |  |  |
Shares |  |  |  |
Granted (in shares) | 78,233 |  |  |
Additional disclosures |  |  |  |
Grant date fair value of the award | $ 2,000 |  |  |
Market Based Performance Stock Units | Minimum |  |  |  |
Additional disclosures |  |  |  |
Vesting percentage (as a percent) | 0.00% |  |  |
Market Based Performance Stock Units | Maximum |  |  |  |
Shares |  |  |  |
Granted (in shares) | 125,173 |  |  |
Additional disclosures |  |  |  |
Vesting percentage (as a percent) | 160.00% |  |  |
Performance Based Performance Stock Units |  |  |  |
Shares |  |  |  |
Granted (in shares) | 78,233 |  |  |
Additional disclosures |  |  |  |
Grant date fair value of the award | $ 2,000 |  |  |
Performance Based Performance Stock Units | Minimum |  |  |  |
Additional disclosures |  |  |  |
Vesting percentage (as a percent) | 0.00% |  |  |
Performance Based Performance Stock Units | Maximum |  |  |  |
Shares |  |  |  |
Granted (in shares) | 125,173 |  |  |
Additional disclosures |  |  |  |
Vesting percentage (as a percent) | 160.00% |  |  |
2020 Equity Incentive Plan | RSU awards | Members of management, including the Vice-Chairman of the Board |  |  |  |
Shares |  |  |  |
Granted (in shares) | 156,483 |  |  |
Additional disclosures |  |  |  |
Grant date fair value of the award | $ 4,000 |  |  |
Accelerated vesting provision, minimum requisite service period | 1 year |  |  |
Vesting percentage (as a percent) | 100.00% |  |  |
2020 Equity Incentive Plan | RSU awards | Members of management, including the Vice-Chairman of the Board | Minimum |  |  |  |
Additional disclosures |  |  |  |
Period over which cost will be recognized | 1 year |  |  |
2020 Equity Incentive Plan | RSU awards | Members of management, including the Vice-Chairman of the Board | Maximum |  |  |  |
Additional disclosures |  |  |  |
Period over which cost will be recognized | 5 years |  |  |
2020 Equity Incentive Plan | DSU awards | Directors and Advisory Directors |  |  |  |
Shares |  |  |  |
Granted (in shares) | 32,658 |  |  |
Additional disclosures |  |  |  |
Grant date fair value of the award | $ 800 |  |  |
Period over which cost will be recognized | 1 year |  |  |
Vesting percentage (as a percent) | 100.00% |  |  |

X
- Definition Represents accelerated vesting provision upon eligible retirement from the Company, minimum requisite service period. + References No definition available. + Details
Name: | buse_AcceleratedVestingProvisionMinimumRequisiteServicePeriod
Namespace Prefix: | buse_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition The number of equity-based payment instruments, excluding stock (or unit) options, that were awarded as dividend equivalents during the reporting period. + References No definition available. + Details
Name: | buse_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsDividendEquivalentEarnedInPeriod
Namespace Prefix: | buse_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Weighted average fair value of the dividend equivalents of equity-based award plans other than stock (unit) option plans, earned during the period. + References No definition available. + Details
Name: | buse_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsDividendEquivalentsEarnedWeightedAverageGrantDateFairValue
Namespace Prefix: | buse_
Data Type: | dtr-types:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition The value of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + References No definition available. + Details
Name: | buse_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodValue
Namespace Prefix: | buse_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The number of equity-based payment instruments, excluding stock (or unit) options, that validly exist and are vested and outstanding, as of the balance sheet date. + References No definition available. + Details
Name: | buse_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedAndOutstanding
Namespace Prefix: | buse_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition The weighted-average fair value of vested and outstanding awards on equity-based plans, excluding option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, revenue or profit achievement stock award plan) for which the employer is contingently obligated to issue equity instruments or transfer assets to an employee who has not yet satisfied service or performance criteria necessary to gain title to proceeds from the sale of the award or underlying shares or units. + References No definition available. + Details
Name: | buse_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedAndOutstandingWeightedAverageGrantDateFairValue
Namespace Prefix: | buse_
Data Type: | dtr-types:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition Amount of expense for award under share-based payment arrangement. Excludes amount capitalized. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5047-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 14.F) -URI http://asc.fasb.org/extlink&oid=122041274&loc=d3e301413-122809 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1)(i) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
Name: | us-gaap_AllocatedShareBasedCompensationExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
Name: | us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAdditionalDisclosuresAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(3) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(3) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(2) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(2) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage of vesting of award under share-based payment arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
Name: | us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_AwardTypeAxis=us-gaap_RestrictedStockUnitsRSUMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AwardTypeAxis=us-gaap_PerformanceSharesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AwardTypeAxis=buse_DeferredStockUnitsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AwardTypeAxis=buse_MarketBasedPerformanceStockUnitsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AwardTypeAxis=buse_PerformanceBasedPerformanceStockUnitsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PlanNameAxis=buse_The2020EquityIncentivePlanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_TitleOfIndividualAxis=buse_ManagementViceChairmanOfBoardMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_TitleOfIndividualAxis=buse_DirectorsAndAdvisoryDirectorsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |