XML 54 R43.htm IDEA: XBRL DOCUMENT
v3.24.3

Fair Value Measurements (Tables) | 9 Months Ended
--- | ---
Sep. 30, 2024
Fair Value Disclosures [Abstract] |
Financial Assets and Financial Liabilities Measured at Fair Value on Recurring Basis | The tables below summarize financial assets and financial liabilities measured at fair value on a recurring basis as of September 30, 2024 and December 31, 2023, segregated by the level of the valuation inputs within the fair value hierarchy of ASC Topic 820 utilized to measure fair value.
| Level 1 Inputs |  | Level 2 Inputs |  | Level 3 Inputs |  | Total Fair Value
September 30, 2024 |  |  |  |  |  |  |
Securities available for sale: |  |  |  |  |  |  |
U.S. Treasury | $ | 3,987,746 |  |  | $ | — |  |  | $ | — |  |  | $ | 3,987,746 |
Residential mortgage-backed securities | — |  |  | 6,692,663 |  |  | — |  |  | 6,692,663 |
States and political subdivisions | — |  |  | 4,596,560 |  |  | — |  |  | 4,596,560 |
Other | — |  |  | 43,074 |  |  | — |  |  | 43,074 |
Trading account securities: |  |  |  |  |  |  |
U.S. Treasury | 32,261 |  |  | — |  |  | — |  |  | 32,261 |
States and political subdivisions | — |  |  | 92 |  |  | — |  |  | 92 |
Derivative assets: |  |  |  |  |  |  |
Interest rate swaps, caps, and floors | — |  |  | 76,790 |  |  | — |  |  | 76,790 |
Commodity swaps and options | — |  |  | 64,082 |  |  | — |  |  | 64,082 |
Derivative liabilities: |  |  |  |  |  |  |
Interest rate swaps, caps, and floors | — |  |  | 76,706 |  |  | — |  |  | 76,706 |
Commodity swaps and options | — |  |  | 62,798 |  |  | — |  |  | 62,798 |
December 31, 2023 |  |  |  |  |  |  |
Securities available for sale: |  |  |  |  |  |  |
U.S. Treasury | $ | 4,927,589 |  |  | $ | — |  |  | $ | — |  |  | $ | 4,927,589 |
Residential mortgage-backed securities | — |  |  | 6,596,682 |  |  | — |  |  | 6,596,682 |
States and political subdivisions | — |  |  | 5,011,331 |  |  | — |  |  | 5,011,331 |
Other | — |  |  | 42,769 |  |  | — |  |  | 42,769 |
Trading account securities: |  |  |  |  |  |  |
U.S. Treasury | 30,265 |  |  | — |  |  | — |  |  | 30,265 |
States and political subdivisions | — |  |  | 1,452 |  |  | — |  |  | 1,452 |
Derivative assets: |  |  |  |  |  |  |
Interest rate swaps, caps, and floors | — |  |  | 90,715 |  |  | — |  |  | 90,715 |
Commodity swaps and options | — |  |  | 70,710 |  |  | — |  |  | 70,710 |
Foreign currency forward contracts | 22 |  |  | — |  |  | — |  |  | 22 |
Derivative liabilities: |  |  |  |  |  |  |
Interest rate swaps, caps, and floors | — |  |  | 90,525 |  |  | — |  |  | 90,525 |
Commodity swaps and options | — |  |  | 69,447 |  |  | — |  |  | 69,447 |
Foreign currency forward contracts | 19 |  |  | — |  |  | — |  |  | 19 |
Impaired Loans Remeasured And Reported At Fair Value Specific Valuation Allowance Allocation Method Of Underlying Collateral [Table Text Block] | The following table presents collateral dependent loans that were remeasured and reported at fair value through a specific allocation of the allowance for credit losses on loans based upon the fair value of the underlying collateral during the reported periods.
| Nine Months Ended September 30, 2024 |  | Nine Months Ended September 30, 2023
| Level 2 |  | Level 3 |  | Level 2 |  | Level 3
Carrying value before allocations | $ | 18,831 |  |  | $ | 43,046 |  |  | $ | 20,051 |  |  | $ | 24,921 |
Specific (allocations) reversals of prior allocations | (2,220) |  |  | (13,145) |  |  | (1,452) |  |  | (4,849) |
Fair value | $ | 16,611 |  |  | $ | 29,901 |  |  | $ | 18,599 |  |  | $ | 20,072 |
Foreclosed Assets Remeasured And Reported At Fair Value | The following table presents foreclosed assets that were remeasured and reported at fair value during the reported periods:
| Nine Months Ended September 30,
| 2024 |  | 2023
Foreclosed assets remeasured at initial recognition: |  |  |
Carrying value of foreclosed assets prior to remeasurement | $ | 2,633 |  |  | $ | — |
Charge-offs recognized in the allowance for loan losses | — |  |  | — |
Fair value | $ | 2,633 |  |  | $ | — |
Estimated Fair Values of Financial Instruments | The estimated fair values of financial instruments that are reported at amortized cost in our consolidated balance sheets, segregated by the level of the valuation inputs within the fair value hierarchy utilized to measure fair value, were as follows:
| September 30, 2024 |  | December 31, 2023
| Carrying Amount |  | Estimated Fair Value |  | Carrying Amount |  | Estimated Fair Value
Financial assets: |  |  |  |  |  |  |
Level 2 inputs: |  |  |  |  |  |  |
Cash and cash equivalents | $ | 9,198,374 |  |  | $ | 9,198,374 |  |  | $ | 8,687,276 |  |  | $ | 8,687,276 |
Securities held to maturity | 3,569,718 |  |  | 3,498,271 |  |  | 3,619,428 |  |  | 3,532,044 |
Accrued interest receivable | 194,562 |  |  | 194,562 |  |  | 251,385 |  |  | 251,385 |
Level 3 inputs: |  |  |  |  |  |  |
Loans, net | 19,791,734 |  |  | 19,490,209 |  |  | 18,578,255 |  |  | 18,117,369 |
Financial liabilities: |  |  |  |  |  |  |
Level 2 inputs: |  |  |  |  |  |  |
Deposits | 41,720,621 |  |  | 41,712,765 |  |  | 41,920,568 |  |  | 41,903,580 |
Federal funds purchased | 22,375 |  |  | 22,375 |  |  | 14,200 |  |  | 14,200 |
Repurchase agreements | 4,014,037 |  |  | 4,014,037 |  |  | 4,127,188 |  |  | 4,127,188 |
Junior subordinated deferrable interest debentures | 123,170 |  |  | 123,712 |  |  | 123,127 |  |  | 123,712 |
Subordinated notes | 99,609 |  |  | 99,319 |  |  | 99,491 |  |  | 96,071 |
Accrued interest payable | 66,462 |  |  | 66,462 |  |  | 61,222 |  |  | 61,222 |

X
- Definition Foreclosed Assets Remeasured And Reported At Fair Value + References No definition available. + Details
Name: | cfr_ForeclosedAssetsRemeasuredAndReportedAtFairValueTableTextBlock
Namespace Prefix: | cfr_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Discloses the impaired loans measured and reported at fair value through specific valuation allowance allocation method for allowance for loan losses based upon the fair value of the underlying collateral Text Block. + References No definition available. + Details
Name: | cfr_ImpairedLoansRemeasuredAndReportedAtFairValueSpecificValuationAllowanceAllocationMethodOfUnderlyingCollateralTableTextBlock
Namespace Prefix: | cfr_
Data Type: | dtr-types1:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of input and valuation technique used to measure fair value and change in valuation approach and technique for each separate class of asset and liability measured on recurring and nonrecurring basis. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (bbb) -SubTopic 10 -Topic 820 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482106/820-10-50-2 + Details
Name: | us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the fair value of financial instruments, including financial assets and financial liabilities, and the measurements of those instruments, assets, and liabilities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482106/820-10-50-2 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 11 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482907/825-10-50-11 + Details
Name: | us-gaap_FairValueByBalanceSheetGroupingTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

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