XML 77 R67.htm IDEA: XBRL DOCUMENT v3.22.1

Allowance for Loan and Lease Losses and Reserve for Unfunded Commitments - Summary of Contractual Delinquency Information (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021	Sep. 30, 2021	Mar. 31, 2021
Financing Receivable Recorded Investment Past Due [Line Items]
Loans And Leases Receivables, Gross	$ 4,789,068	$ 4,537,128		$ 4,454,620
Commercial Real Estate
Financing Receivable Recorded Investment Past Due [Line Items]
Loans And Leases Receivables, Gross	1,779,365	1,665,748		1,431,668
Residential Real Estate
Financing Receivable Recorded Investment Past Due [Line Items]
Loans And Leases Receivables, Gross	494,720	480,514		545,279
Construction, Land Development, and Other Land
Financing Receivable Recorded Investment Past Due [Line Items]
Loans And Leases Receivables, Gross	353,072	325,399		240,324
Commercial and Industrial
Financing Receivable Recorded Investment Past Due [Line Items]
Loans And Leases Receivables, Gross	1,739,611	1,581,961		1,364,396
Paycheck Protection Program
Financing Receivable Recorded Investment Past Due [Line Items]
Loans And Leases Receivables, Gross	36,260	123,712		617,006
Installment and Other
Financing Receivable Recorded Investment Past Due [Line Items]
Loans And Leases Receivables, Gross	1,356	1,368		1,616
Lease Financing Receivables
Financing Receivable Recorded Investment Past Due [Line Items]
Loans And Leases Receivables, Gross	384,684	358,426	$ 384,684	$ 254,331
Acquired Non-Impaired and Originated Loans
Financing Receivable Recorded Investment Past Due [Line Items]
Financing Receivable, Non-accrual	20,277	23,130
Loans And Leases Receivables, Gross	4,669,317	4,410,077
Acquired Non-Impaired and Originated Loans | Commercial Real Estate
Financing Receivable Recorded Investment Past Due [Line Items]
Financing Receivable, Non-accrual	10,988	12,751
Loans And Leases Receivables, Gross	1,712,273	1,593,588
Acquired Non-Impaired and Originated Loans | Residential Real Estate
Financing Receivable Recorded Investment Past Due [Line Items]
Financing Receivable, Non-accrual	1,923	1,450
Loans And Leases Receivables, Gross	447,373	431,113
Acquired Non-Impaired and Originated Loans | Construction, Land Development, and Other Land
Financing Receivable Recorded Investment Past Due [Line Items]
Financing Receivable, Non-accrual	0	0
Loans And Leases Receivables, Gross	351,715	324,087
Acquired Non-Impaired and Originated Loans | Commercial and Industrial
Financing Receivable Recorded Investment Past Due [Line Items]
Financing Receivable, Non-accrual	7,003	8,600
Loans And Leases Receivables, Gross	1,735,819	1,577,947
Acquired Non-Impaired and Originated Loans | Paycheck Protection Program
Financing Receivable Recorded Investment Past Due [Line Items]
Financing Receivable, Non-accrual	0
Loans And Leases Receivables, Gross	36,260	123,712
Acquired Non-Impaired and Originated Loans | Installment and Other
Financing Receivable Recorded Investment Past Due [Line Items]
Financing Receivable, Non-accrual	0	0
Loans And Leases Receivables, Gross	1,193	1,204
Acquired Non-Impaired and Originated Loans | Lease Financing Receivables
Financing Receivable Recorded Investment Past Due [Line Items]
Financing Receivable, Non-accrual	363	329
Loans And Leases Receivables, Gross	384,684	358,426
Acquired Non-Impaired and Originated Loans | Financial Asset, 30 to 59 Days Past Due [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	15,858	29,495
Acquired Non-Impaired and Originated Loans | Financial Asset, 30 to 59 Days Past Due [Member] | Commercial Real Estate
Financing Receivable Recorded Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	8,457	5,185
Acquired Non-Impaired and Originated Loans | Financial Asset, 30 to 59 Days Past Due [Member] | Residential Real Estate
Financing Receivable Recorded Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	2,213	14,282
Acquired Non-Impaired and Originated Loans | Financial Asset, 30 to 59 Days Past Due [Member] | Construction, Land Development, and Other Land
Financing Receivable Recorded Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	0	5,885
Acquired Non-Impaired and Originated Loans | Financial Asset, 30 to 59 Days Past Due [Member] | Commercial and Industrial
Financing Receivable Recorded Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	4,671	2,479
Acquired Non-Impaired and Originated Loans | Financial Asset, 30 to 59 Days Past Due [Member] | Paycheck Protection Program
Financing Receivable Recorded Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	0	0
Acquired Non-Impaired and Originated Loans | Financial Asset, 30 to 59 Days Past Due [Member] | Installment and Other
Financing Receivable Recorded Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	2	3
Acquired Non-Impaired and Originated Loans | Financial Asset, 30 to 59 Days Past Due [Member] | Lease Financing Receivables
Financing Receivable Recorded Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	515	1,661
Acquired Non-Impaired and Originated Loans | Financial Asset, 60 to 89 Days Past Due [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	13,164	4,596
Acquired Non-Impaired and Originated Loans | Financial Asset, 60 to 89 Days Past Due [Member] | Commercial Real Estate
Financing Receivable Recorded Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	10,684	2,361
Acquired Non-Impaired and Originated Loans | Financial Asset, 60 to 89 Days Past Due [Member] | Residential Real Estate
Financing Receivable Recorded Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	2,430	852
Acquired Non-Impaired and Originated Loans | Financial Asset, 60 to 89 Days Past Due [Member] | Construction, Land Development, and Other Land
Financing Receivable Recorded Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	0	0
Acquired Non-Impaired and Originated Loans | Financial Asset, 60 to 89 Days Past Due [Member] | Commercial and Industrial
Financing Receivable Recorded Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	0	1,097
Acquired Non-Impaired and Originated Loans | Financial Asset, 60 to 89 Days Past Due [Member] | Paycheck Protection Program
Financing Receivable Recorded Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	0	0
Acquired Non-Impaired and Originated Loans | Financial Asset, 60 to 89 Days Past Due [Member] | Installment and Other
Financing Receivable Recorded Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	34	35
Acquired Non-Impaired and Originated Loans | Financial Asset, 60 to 89 Days Past Due [Member] | Lease Financing Receivables
Financing Receivable Recorded Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	16	251
Acquired Non-Impaired and Originated Loans | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	0	0
Acquired Non-Impaired and Originated Loans | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Commercial Real Estate
Financing Receivable Recorded Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	0	0
Acquired Non-Impaired and Originated Loans | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Residential Real Estate
Financing Receivable Recorded Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	0	0
Acquired Non-Impaired and Originated Loans | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Construction, Land Development, and Other Land
Financing Receivable Recorded Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	0	0
Acquired Non-Impaired and Originated Loans | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Commercial and Industrial
Financing Receivable Recorded Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	0	0
Acquired Non-Impaired and Originated Loans | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Paycheck Protection Program
Financing Receivable Recorded Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	0	0
Acquired Non-Impaired and Originated Loans | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Installment and Other
Financing Receivable Recorded Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	0	0
Acquired Non-Impaired and Originated Loans | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Lease Financing Receivables
Financing Receivable Recorded Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	0	0
Acquired Non-Impaired and Originated Loans | Financial Asset, Past Due [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	49,299	57,221
Acquired Non-Impaired and Originated Loans | Financial Asset, Past Due [Member] | Commercial Real Estate
Financing Receivable Recorded Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	30,129	20,297
Acquired Non-Impaired and Originated Loans | Financial Asset, Past Due [Member] | Residential Real Estate
Financing Receivable Recorded Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	6,566	16,584
Acquired Non-Impaired and Originated Loans | Financial Asset, Past Due [Member] | Construction, Land Development, and Other Land
Financing Receivable Recorded Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	0	5,885
Acquired Non-Impaired and Originated Loans | Financial Asset, Past Due [Member] | Commercial and Industrial
Financing Receivable Recorded Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	11,674	12,176
Acquired Non-Impaired and Originated Loans | Financial Asset, Past Due [Member] | Paycheck Protection Program
Financing Receivable Recorded Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	0	0
Acquired Non-Impaired and Originated Loans | Financial Asset, Past Due [Member] | Installment and Other
Financing Receivable Recorded Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	36	38
Acquired Non-Impaired and Originated Loans | Financial Asset, Past Due [Member] | Lease Financing Receivables
Financing Receivable Recorded Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	894	2,241
Acquired Non-Impaired and Originated Loans | Financial Asset, Not Past Due [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	4,620,018	4,352,856
Acquired Non-Impaired and Originated Loans | Financial Asset, Not Past Due [Member] | Commercial Real Estate
Financing Receivable Recorded Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	1,682,144	1,573,291
Acquired Non-Impaired and Originated Loans | Financial Asset, Not Past Due [Member] | Residential Real Estate
Financing Receivable Recorded Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	440,807	414,529
Acquired Non-Impaired and Originated Loans | Financial Asset, Not Past Due [Member] | Construction, Land Development, and Other Land
Financing Receivable Recorded Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	351,715	318,202
Acquired Non-Impaired and Originated Loans | Financial Asset, Not Past Due [Member] | Commercial and Industrial
Financing Receivable Recorded Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	1,724,145	1,565,771
Acquired Non-Impaired and Originated Loans | Financial Asset, Not Past Due [Member] | Paycheck Protection Program
Financing Receivable Recorded Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	36,260	123,712
Acquired Non-Impaired and Originated Loans | Financial Asset, Not Past Due [Member] | Installment and Other
Financing Receivable Recorded Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	1,157	1,166
Acquired Non-Impaired and Originated Loans | Financial Asset, Not Past Due [Member] | Lease Financing Receivables
Financing Receivable Recorded Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	$ 383,790	$ 356,185

X

- Definition

Amount of financing receivable on nonaccrual status.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 7
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=123577603&loc=d3e5111-111524

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 50
-Paragraph 16
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=124255953&loc=SL82919258-210447

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher SEC
-Name Regulation S-K (SK)
-Number 229
-Section 1405
-Paragraph (a)
-Subparagraph (3)

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher SEC
-Name Regulation S-K (SK)
-Number 229
-Section 1405
-Paragraph (a)
-Subparagraph (2)

+ Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus
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

No definition available.

+ Details

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

X

- Definition

Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=124259787&loc=d3e4428-111522

+ Details

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

X

- Definition

Amount, before allowance for credit loss, of financing receivable.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 7A
-URI http://asc.fasb.org/extlink&oid=123577603&loc=SL6953401-111524

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 55
-Paragraph 79
-URI http://asc.fasb.org/extlink&oid=124267575&loc=SL82922352-210448

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 50
-Paragraph 14
-URI http://asc.fasb.org/extlink&oid=124255953&loc=SL82919253-210447

Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=124255206&loc=SL82895884-210446

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 50
-Paragraph 5
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=124255953&loc=SL82919230-210447

Reference 6: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 55
-Paragraph 80
-URI http://asc.fasb.org/extlink&oid=124267575&loc=SL82922355-210448

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Publisher SEC
-Name Regulation S-K (SK)
-Number 229
-Section 1405
-Paragraph (a)
-Subparagraph (1)

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Publisher SEC
-Name Regulation S-K (SK)
-Number 229
-Section 1405
-Paragraph (a)
-Subparagraph (2)

Reference 9: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher SEC
-Name Regulation S-K (SK)
-Number 229
-Section 1404
-Paragraph (a)

+ Details

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

X

- Details

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_CommercialRealEstatePortfolioSegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_ResidentialPortfolioSegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=by_ConstructionLandDevelopmentAndOtherLandPortfolioSegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=by_CommercialAndIndustrialPortfolioSegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=by_PaycheckProtectionProgramPortfolioSegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=by_InstallmentAndOtherPortfolioSegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_FinanceLeasesPortfolioSegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

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

X

- Details

Name:	us-gaap_FinancingReceivablesPeriodPastDueAxis=us-gaap_FinancingReceivables30To59DaysPastDueMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivablesPeriodPastDueAxis=us-gaap_FinancingReceivables60To89DaysPastDueMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivablesPeriodPastDueAxis=us-gaap_FinancingReceivablesEqualToGreaterThan90DaysPastDueMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivablesPeriodPastDueAxis=us-gaap_FinancialAssetPastDueMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivablesPeriodPastDueAxis=us-gaap_FinancialAssetNotPastDueMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: