XML 55 R46.htm IDEA: XBRL DOCUMENT
v3.23.2

Loans and Allowances for Credit Losses, By Aging Category (Details) - USD ($) $ in Thousands | Jun. 30, 2023 | Dec. 31, 2022
--- | --- | ---
Financing Receivable, Past Due [Line Items] |  |
Past Due 90 Days or More and Accruing | $ 56,002 | $ 76,114
Current and Past Due Performing Loans | 23,237,659 | 22,557,150
30 to 59 Days [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Current and Past Due Performing Loans | 51,291 | 55,039
60 to 89 Days [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Current and Past Due Performing Loans | 22,334 | 51,614
90 Days or More [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Current and Past Due Performing Loans | 105,388 | 94,633
Financial Asset, Not Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Current and Past Due Performing Loans | 23,058,646 | 22,355,864
Commercial [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Past Due 90 Days or More and Accruing | 6 | 396
Current and Past Due Performing Loans | 14,534,516 | 14,212,499
Commercial [Member] | 30 to 59 Days [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Current and Past Due Performing Loans | 7,065 | 7,255
Commercial [Member] | 60 to 89 Days [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Current and Past Due Performing Loans | 173 | 30,365
Commercial [Member] | 90 Days or More [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Current and Past Due Performing Loans | 32,480 | 5,813
Commercial [Member] | Financial Asset, Not Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Current and Past Due Performing Loans | 14,494,798 | 14,169,066
Commercial [Member] | Energy [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Past Due 90 Days or More and Accruing | 0 | 0
Current and Past Due Performing Loans | 3,508,752 | 3,424,790
Commercial [Member] | Energy [Member] | 30 to 59 Days [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Current and Past Due Performing Loans | 0 | 24
Commercial [Member] | Energy [Member] | 60 to 89 Days [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Current and Past Due Performing Loans | 0 | 0
Commercial [Member] | Energy [Member] | 90 Days or More [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Current and Past Due Performing Loans | 0 | 0
Commercial [Member] | Energy [Member] | Financial Asset, Not Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Current and Past Due Performing Loans | 3,508,752 | 3,424,766
Commercial [Member] | Healthcare [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Past Due 90 Days or More and Accruing | 0 | 0
Current and Past Due Performing Loans | 3,991,387 | 3,845,017
Commercial [Member] | Healthcare [Member] | 30 to 59 Days [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Current and Past Due Performing Loans | 0 | 5,914
Commercial [Member] | Healthcare [Member] | 60 to 89 Days [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Current and Past Due Performing Loans | 0 | 26,480
Commercial [Member] | Healthcare [Member] | 90 Days or More [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Current and Past Due Performing Loans | 32,070 | 459
Commercial [Member] | Healthcare [Member] | Financial Asset, Not Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Current and Past Due Performing Loans | 3,959,317 | 3,812,164
Commercial [Member] | Services [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Past Due 90 Days or More and Accruing | 0 | 0
Current and Past Due Performing Loans | 3,585,169 | 3,431,521
Commercial [Member] | Services [Member] | 30 to 59 Days [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Current and Past Due Performing Loans | 2,172 | 1,060
Commercial [Member] | Services [Member] | 60 to 89 Days [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Current and Past Due Performing Loans | 55 | 2,461
Commercial [Member] | Services [Member] | 90 Days or More [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Current and Past Due Performing Loans | 404 | 4,958
Commercial [Member] | Services [Member] | Financial Asset, Not Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Current and Past Due Performing Loans | 3,582,538 | 3,423,042
Commercial [Member] | General business [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Past Due 90 Days or More and Accruing | 6 | 396
Current and Past Due Performing Loans | 3,449,208 | 3,511,171
Commercial [Member] | General business [Member] | 30 to 59 Days [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Current and Past Due Performing Loans | 4,893 | 257
Commercial [Member] | General business [Member] | 60 to 89 Days [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Current and Past Due Performing Loans | 118 | 1,424
Commercial [Member] | General business [Member] | 90 Days or More [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Current and Past Due Performing Loans | 6 | 396
Commercial [Member] | General business [Member] | Financial Asset, Not Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Current and Past Due Performing Loans | 3,444,191 | 3,509,094
Commercial real estate [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Past Due 90 Days or More and Accruing | 0 | 0
Current and Past Due Performing Loans | 4,970,801 | 4,606,777
Commercial real estate [Member] | 30 to 59 Days [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Current and Past Due Performing Loans | 0 | 531
Commercial real estate [Member] | 60 to 89 Days [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Current and Past Due Performing Loans | 0 | 0
Commercial real estate [Member] | 90 Days or More [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Current and Past Due Performing Loans | 7,343 | 217
Commercial real estate [Member] | Financial Asset, Not Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Current and Past Due Performing Loans | 4,963,458 | 4,606,029
Loans to individuals [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Past Due 90 Days or More and Accruing | 55,996 | 75,718
Current and Past Due Performing Loans | 3,732,342 | 3,737,874
Loans to individuals [Member] | 30 to 59 Days [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Current and Past Due Performing Loans | 44,226 | 47,253
Loans to individuals [Member] | 60 to 89 Days [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Current and Past Due Performing Loans | 22,161 | 21,249
Loans to individuals [Member] | 90 Days or More [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Current and Past Due Performing Loans | 65,565 | 88,603
Loans to individuals [Member] | Financial Asset, Not Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Current and Past Due Performing Loans | 3,600,390 | 3,580,769
Loans to individuals [Member] | Residential mortgage [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Past Due 90 Days or More and Accruing | 54 | 114
Current and Past Due Performing Loans | 1,993,690 | 1,890,784
Loans to individuals [Member] | Residential mortgage [Member] | 30 to 59 Days [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Current and Past Due Performing Loans | 10,537 | 10,632
Loans to individuals [Member] | Residential mortgage [Member] | 60 to 89 Days [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Current and Past Due Performing Loans | 2,850 | 1,828
Loans to individuals [Member] | Residential mortgage [Member] | 90 Days or More [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Current and Past Due Performing Loans | 3,330 | 6,169
Loans to individuals [Member] | Residential mortgage [Member] | Financial Asset, Not Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Current and Past Due Performing Loans | 1,976,973 | 1,872,155
Loans to individuals [Member] | Residential mortgage [Member] | US Government Agency Insured Loans [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Past Due 90 Days or More and Accruing | 55,782 | 75,604
Current and Past Due Performing Loans | 186,170 | 245,940
Loans to individuals [Member] | Residential mortgage [Member] | US Government Agency Insured Loans [Member] | 30 to 59 Days [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Current and Past Due Performing Loans | 30,504 | 36,119
Loans to individuals [Member] | Residential mortgage [Member] | US Government Agency Insured Loans [Member] | 60 to 89 Days [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Current and Past Due Performing Loans | 18,302 | 19,400
Loans to individuals [Member] | Residential mortgage [Member] | US Government Agency Insured Loans [Member] | 90 Days or More [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Current and Past Due Performing Loans | 62,031 | 82,402
Loans to individuals [Member] | Residential mortgage [Member] | US Government Agency Insured Loans [Member] | Financial Asset, Not Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Current and Past Due Performing Loans | 75,333 | 108,019
Loans to individuals [Member] | Personal [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Past Due 90 Days or More and Accruing | 160 | 0
Current and Past Due Performing Loans | 1,552,482 | 1,601,150
Loans to individuals [Member] | Personal [Member] | 30 to 59 Days [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Current and Past Due Performing Loans | 3,185 | 502
Loans to individuals [Member] | Personal [Member] | 60 to 89 Days [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Current and Past Due Performing Loans | 1,009 | 21
Loans to individuals [Member] | Personal [Member] | 90 Days or More [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Current and Past Due Performing Loans | 204 | 32
Loans to individuals [Member] | Personal [Member] | Financial Asset, Not Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Current and Past Due Performing Loans | $ 1,548,084 | $ 1,600,595

X
- Definition Amortized cost of financing receivable 90 days or more past due and still accruing. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 80 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479294/326-20-55-80 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 16 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-16 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name Accounting Standards Codification -Section 50 -Paragraph 7 -Subparagraph (b) -SubTopic 10 -Topic 310 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-7 + Details
Name: | us-gaap_FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing
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 14 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-14 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 80 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479294/326-20-55-80 + Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentPastDueLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amortized cost, before allowance for credit loss, 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/exampleRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 80 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479294/326-20-55-80 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 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479344/326-20-45-1 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(3)(b)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Name Regulation S-K (SK) -Number 229 -Section 1405 -Paragraph (a) -Subparagraph (1) -Publisher SEC Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Name Regulation S-K (SK) -Number 229 -Section 1405 -Paragraph (a) -Subparagraph (2) -Publisher SEC Reference 7: http://www.xbrl.org/2009/role/commonPracticeRef -Name Regulation S-K (SK) -Number 229 -Section 1404 -Paragraph (a) -Publisher SEC Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 14 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-14 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Name Accounting Standards Codification -Section 50 -Paragraph 7A -SubTopic 10 -Topic 310 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-7A Reference 10: 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 + Details
Name: | us-gaap_NotesReceivableGross
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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_FinancialAssetNotPastDueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_CommercialPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=bokf_EnergyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_HealthCareMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=bokf_ServicesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=bokf_GeneralbusinessmemberMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=bokf_LoanstoindividualsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_ResidentialPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LoansInsuredOrGuaranteedByGovernmentAuthoritiesAxis=us-gaap_UsGovernmentAgencyInsuredLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_ConsumerPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |