XML 87 R69.htm IDEA: XBRL DOCUMENT
v3.24.0.1

Loans (Non-Accrual Loans, Segregated by Class of Loan and Year of Origination) (Details) - USD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Loans and Leases Receivable Disclosure [Line Items] |  |
Non-accrual loans | $ 60,907 | $ 37,833
Commercial Portfolio Segment [Member] |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Financing Receivable, Year One, Originated, Current Fiscal Year | 1,619,306 | 1,703,185
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 768,246 | 657,039
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 491,938 | 498,213
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 364,446 | 241,997
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 182,089 | 138,541
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 219,766 | 195,754
Financing Receivable, Revolving | 2,247,752 | 2,170,182
Non-accrual loans | 19,545 | 18,130
Commercial and Industrial Total Energy Loans [Member] |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Financing Receivable, Year One, Originated, Current Fiscal Year | 277,722 | 352,224
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 61,500 | 100,862
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 74,631 | 5,312
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 3,835 | 8,659
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 6,876 | 3,078
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 4,541 | 2,913
Financing Receivable, Revolving | 495,329 | 408,022
Non-accrual loans | 11,500 | 15,224
Commercial Real Estate, Buildings, Land and Other [Member] |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Financing Receivable, Year One, Originated, Current Fiscal Year | 1,645,223 | 1,901,888
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 1,785,624 | 1,528,173
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 1,253,062 | 1,009,197
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 811,574 | 745,031
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 522,566 | 410,327
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 953,768 | 882,021
Financing Receivable, Revolving | 229,733 | 120,958
Non-accrual loans | 22,420 | 3,552
Construction Loans [Member] |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Financing Receivable, Year One, Originated, Current Fiscal Year | 560,720 | 666,024
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 576,374 | 491,563
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 344,641 | 130,888
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 28,063 | 2,236
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 296 | 486
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 1,613 | 1,726
Financing Receivable, Revolving | 169,017 | 181,180
Non-accrual loans | 0 | 0
Total consumer real estate loans [Member] |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Non-accrual loans | 7,442 | 927
Consumer Loan [Member] |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Non-accrual loans | 0 | 0
Nonperforming Financial Instruments [Member] |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Financing Receivable, Year One, Originated, Current Fiscal Year | 25,974 | 6,301
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 359 | 1,510
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 1,785 | 1,161
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 1,079 | 4,845
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 6,310 | 1,473
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 2,209 | 1,700
Financing Receivable, Revolving | 5,711 | 10,604
Financing Receivable, Revolving, Converted to Term Loan | 17,480 | 10,239
Nonperforming Financial Instruments [Member] | Commercial Portfolio Segment [Member] |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Financing Receivable, Year One, Originated, Current Fiscal Year | 0 | 0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 359 | 1,252
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 1,635 | 1,089
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 985 | 3,242
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 1,257 | 1,197
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 1,006 | 191
Financing Receivable, Revolving | 9 | 2,973
Financing Receivable, Revolving, Converted to Term Loan | 14,294 | 8,186
Nonperforming Financial Instruments [Member] | Commercial and Industrial Total Energy Loans [Member] |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Financing Receivable, Year One, Originated, Current Fiscal Year | 5,875 | 4,657
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 0 | 0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 0 | 72
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 56 | 1,386
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 1,321 | 10
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 0 | 0
Financing Receivable, Revolving | 4,102 | 7,631
Financing Receivable, Revolving, Converted to Term Loan | 146 | 1,468
Nonperforming Financial Instruments [Member] | Commercial Real Estate, Buildings, Land and Other [Member] |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Financing Receivable, Year One, Originated, Current Fiscal Year | 20,099 | 1,644
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 0 | 0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 150 | 0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 0 | 217
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 1,451 | 266
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 720 | 1,425
Financing Receivable, Revolving | 0 | 0
Financing Receivable, Revolving, Converted to Term Loan | 0 | 0
Nonperforming Financial Instruments [Member] | Construction Loans [Member] |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Financing Receivable, Year One, Originated, Current Fiscal Year | 0 | 0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 0 | 0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 0 | 0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 0 | 0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 0 | 0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 0 | 0
Financing Receivable, Revolving | 0 | 0
Financing Receivable, Revolving, Converted to Term Loan | 0 | 0
Nonperforming Financial Instruments [Member] | Total consumer real estate loans [Member] |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Financing Receivable, Year One, Originated, Current Fiscal Year | 0 | 0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 0 | 258
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 0 | 0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 38 | 0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 2,281 | 0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 483 | 84
Financing Receivable, Revolving | 1,600 | 0
Financing Receivable, Revolving, Converted to Term Loan | 3,040 | 585
Nonperforming Financial Instruments [Member] | Consumer Loan [Member] |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Financing Receivable, Year One, Originated, Current Fiscal Year | 0 | 0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 0 | 0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 0 | 0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 0 | 0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 0 | 0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 0 | 0
Financing Receivable, Revolving | 0 | 0
Financing Receivable, Revolving, Converted to Term Loan | $ 0 | $ 0

X
- Definition Amortized cost of financing receivable originated more than five years prior to current fiscal year. 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 79 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479294/326-20-55-79 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-6 + Details
Name: | us-gaap_FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amortized cost of financing receivable originated four years prior to current fiscal year. 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 79 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479294/326-20-55-79 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-6 + Details
Name: | us-gaap_FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amortized cost of financing receivable originated in current fiscal year. 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 79 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479294/326-20-55-79 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-6 + Details
Name: | us-gaap_FinancingReceivableOriginatedInCurrentFiscalYear
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amortized cost of financing receivable originated in fiscal year prior to current fiscal year. 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 79 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479294/326-20-55-79 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-6 + Details
Name: | us-gaap_FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amortized cost of financing receivable originated three years prior to current fiscal year. 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 79 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479294/326-20-55-79 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-6 + Details
Name: | us-gaap_FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amortized cost of financing receivable originated two years prior to current fiscal year. 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 79 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479294/326-20-55-79 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-6 + Details
Name: | us-gaap_FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amortized cost of financing receivable that can be withdrawn, repaid, and redrawn. + References Reference 1: 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 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-6 + Details
Name: | us-gaap_FinancingReceivableRevolving
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amortized cost of revolving financing receivable converted to term loan. + References Reference 1: 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 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6A -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-6A + Details
Name: | us-gaap_FinancingReceivableRevolvingConvertedToTermLoan
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_LoansAndLeasesReceivableDisclosureLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Reflects the carrying amount of loans deemed to be questionable as to collection on which no interest is continuing to be recognized. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-7 + Details
Name: | us-gaap_LoansAndLeasesReceivableImpairedNonperformingNonaccrualOfInterest
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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

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

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

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

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

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

X
- Details
Name: | us-gaap_FinancialInstrumentPerformanceStatusAxis=us-gaap_NonperformingFinancingReceivableMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |