XML 47 R35.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Loans, Credit Risk Profile Based on Rating Category and Payment Activity and on Performing and Nonperforming Status, Segregated by Class (Details) - USD ($) $ in Thousands | 6 Months Ended |
--- | --- | ---
Jun. 30, 2018 | Dec. 31, 2017
Credit Risk Profile, Segregated by Class [Abstract] |  |  |
Loan portfolio based on credit risk profile |  | $ 3,169,042 | $ 3,122,940
Consumer mortgage loans secured by real estate properties for which formal foreclosure proceedings are in process |  | 4,500 | 3,700
Commercial [Member] |  |  |
Credit Risk Profile, Segregated by Class [Abstract] |  |  |
Loan portfolio based on credit risk profile |  | 1,627,671 | 1,619,235
Commercial [Member] | Pass [Member] |  |  |
Credit Risk Profile, Segregated by Class [Abstract] |  |  |
Loan portfolio based on credit risk profile |  | $ 1,426,096 | 1,430,207
Commercial [Member] | Pass [Member] | Minimum [Member] |  |  |
Credit Risk Profile, Segregated by Class [Abstract] |  |  |
Review period for loans |  | 12 months |
Commercial [Member] | Pass [Member] | Maximum [Member] |  |  |
Credit Risk Profile, Segregated by Class [Abstract] |  |  |
Review period for loans |  | 18 months |
Commercial [Member] | Watch [Member] |  |  |
Credit Risk Profile, Segregated by Class [Abstract] |  |  |
Loan portfolio based on credit risk profile |  | $ 117,582 | 97,513
Commercial [Member] | OAEM [Member] |  |  |
Credit Risk Profile, Segregated by Class [Abstract] |  |  |
Loan portfolio based on credit risk profile |  | 15,560 | 26,948
Commercial [Member] | Substandard [Member] |  |  |
Credit Risk Profile, Segregated by Class [Abstract] |  |  |
Loan portfolio based on credit risk profile |  | 68,142 | 63,998
Commercial [Member] | Doubtful [Member] |  |  |
Credit Risk Profile, Segregated by Class [Abstract] |  |  |
Loan portfolio based on credit risk profile |  | 291 | 569
Commercial [Member] | Construction [Member] |  |  |
Credit Risk Profile, Segregated by Class [Abstract] |  |  |
Loan portfolio based on credit risk profile |  | 81,196 | 76,479
Commercial [Member] | Construction [Member] | Pass [Member] |  |  |
Credit Risk Profile, Segregated by Class [Abstract] |  |  |
Loan portfolio based on credit risk profile |  | 72,673 | 67,846
Commercial [Member] | Construction [Member] | Watch [Member] |  |  |
Credit Risk Profile, Segregated by Class [Abstract] |  |  |
Loan portfolio based on credit risk profile |  | 3,584 | 3,323
Commercial [Member] | Construction [Member] | OAEM [Member] |  |  |
Credit Risk Profile, Segregated by Class [Abstract] |  |  |
Loan portfolio based on credit risk profile |  | 1,325 | 1,304
Commercial [Member] | Construction [Member] | Substandard [Member] |  |  |
Credit Risk Profile, Segregated by Class [Abstract] |  |  |
Loan portfolio based on credit risk profile |  | 3,614 | 3,828
Commercial [Member] | Construction [Member] | Doubtful [Member] |  |  |
Credit Risk Profile, Segregated by Class [Abstract] |  |  |
Loan portfolio based on credit risk profile |  | 0 | 178
Commercial [Member] | Real Estate [Member] |  |  |
Credit Risk Profile, Segregated by Class [Abstract] |  |  |
Loan portfolio based on credit risk profile |  | 1,191,711 | 1,188,680
Commercial [Member] | Real Estate [Member] | Pass [Member] |  |  |
Credit Risk Profile, Segregated by Class [Abstract] |  |  |
Loan portfolio based on credit risk profile |  | 1,042,821 | 1,053,701
Commercial [Member] | Real Estate [Member] | Watch [Member] |  |  |
Credit Risk Profile, Segregated by Class [Abstract] |  |  |
Loan portfolio based on credit risk profile |  | 84,787 | 65,182
Commercial [Member] | Real Estate [Member] | OAEM [Member] |  |  |
Credit Risk Profile, Segregated by Class [Abstract] |  |  |
Loan portfolio based on credit risk profile |  | 11,120 | 22,401
Commercial [Member] | Real Estate [Member] | Substandard [Member] |  |  |
Credit Risk Profile, Segregated by Class [Abstract] |  |  |
Loan portfolio based on credit risk profile |  | 52,889 | 47,223
Commercial [Member] | Real Estate [Member] | Doubtful [Member] |  |  |
Credit Risk Profile, Segregated by Class [Abstract] |  |  |
Loan portfolio based on credit risk profile |  | 94 | 173
Commercial [Member] | Equipment Leases [Member] |  |  |
Credit Risk Profile, Segregated by Class [Abstract] |  |  |
Loan portfolio based on credit risk profile |  | 2,354 | 3,042
Commercial [Member] | Equipment Leases [Member] | Pass [Member] |  |  |
Credit Risk Profile, Segregated by Class [Abstract] |  |  |
Loan portfolio based on credit risk profile |  | 2,354 | 3,005
Commercial [Member] | Equipment Leases [Member] | Watch [Member] |  |  |
Credit Risk Profile, Segregated by Class [Abstract] |  |  |
Loan portfolio based on credit risk profile |  | 0 | 0
Commercial [Member] | Equipment Leases [Member] | OAEM [Member] |  |  |
Credit Risk Profile, Segregated by Class [Abstract] |  |  |
Loan portfolio based on credit risk profile |  | 0 | 37
Commercial [Member] | Equipment Leases [Member] | Substandard [Member] |  |  |
Credit Risk Profile, Segregated by Class [Abstract] |  |  |
Loan portfolio based on credit risk profile |  | 0 | 0
Commercial [Member] | Equipment Leases [Member] | Doubtful [Member] |  |  |
Credit Risk Profile, Segregated by Class [Abstract] |  |  |
Loan portfolio based on credit risk profile |  | 0 | 0
Commercial [Member] | Other [Member] |  |  |
Credit Risk Profile, Segregated by Class [Abstract] |  |  |
Loan portfolio based on credit risk profile |  | 352,410 | 351,034
Commercial [Member] | Other [Member] | Pass [Member] |  |  |
Credit Risk Profile, Segregated by Class [Abstract] |  |  |
Loan portfolio based on credit risk profile |  | 308,248 | 305,655
Commercial [Member] | Other [Member] | Watch [Member] |  |  |
Credit Risk Profile, Segregated by Class [Abstract] |  |  |
Loan portfolio based on credit risk profile |  | 29,211 | 29,008
Commercial [Member] | Other [Member] | OAEM [Member] |  |  |
Credit Risk Profile, Segregated by Class [Abstract] |  |  |
Loan portfolio based on credit risk profile |  | 3,115 | 3,206
Commercial [Member] | Other [Member] | Substandard [Member] |  |  |
Credit Risk Profile, Segregated by Class [Abstract] |  |  |
Loan portfolio based on credit risk profile |  | 11,639 | 12,947
Commercial [Member] | Other [Member] | Doubtful [Member] |  |  |
Credit Risk Profile, Segregated by Class [Abstract] |  |  |
Loan portfolio based on credit risk profile |  | 197 | 218
Residential [Member] | Construction [Member] |  |  |
Credit Risk Profile, Segregated by Class [Abstract] |  |  |
Loan portfolio based on credit risk profile |  | 64,817 | 67,358
Residential [Member] | Construction [Member] | Performing [Member] |  |  |
Credit Risk Profile, Segregated by Class [Abstract] |  |  |
Loan portfolio based on credit risk profile |  | 64,700 | 66,817
Residential [Member] | Construction [Member] | Nonperforming [Member] |  |  |
Credit Risk Profile, Segregated by Class [Abstract] |  |  |
Loan portfolio based on credit risk profile | [1] | 117 | 541
Residential [Member] | Real Estate [Member] |  |  |
Credit Risk Profile, Segregated by Class [Abstract] |  |  |
Loan portfolio based on credit risk profile |  | 720,696 | 709,570
Residential [Member] | Real Estate [Member] | Performing [Member] |  |  |
Credit Risk Profile, Segregated by Class [Abstract] |  |  |
Loan portfolio based on credit risk profile |  | 710,445 | 695,034
Residential [Member] | Real Estate [Member] | Nonperforming [Member] |  |  |
Credit Risk Profile, Segregated by Class [Abstract] |  |  |
Loan portfolio based on credit risk profile | [1] | 10,251 | 14,536
Residential [Member] | Home Equity [Member] |  |  |
Credit Risk Profile, Segregated by Class [Abstract] |  |  |
Loan portfolio based on credit risk profile |  | 102,432 | 99,356
Residential [Member] | Home Equity [Member] | Performing [Member] |  |  |
Credit Risk Profile, Segregated by Class [Abstract] |  |  |
Loan portfolio based on credit risk profile |  | 101,829 | 98,800
Residential [Member] | Home Equity [Member] | Nonperforming [Member] |  |  |
Credit Risk Profile, Segregated by Class [Abstract] |  |  |
Loan portfolio based on credit risk profile | [1] | 603 | 556
Consumer [Member] | Consumer Direct [Member] |  |  |
Credit Risk Profile, Segregated by Class [Abstract] |  |  |
Loan portfolio based on credit risk profile |  | 145,376 | 137,754
Consumer [Member] | Consumer Direct [Member] | Performing [Member] |  |  |
Credit Risk Profile, Segregated by Class [Abstract] |  |  |
Loan portfolio based on credit risk profile |  | 145,319 | 137,692
Consumer [Member] | Consumer Direct [Member] | Nonperforming [Member] |  |  |
Credit Risk Profile, Segregated by Class [Abstract] |  |  |
Loan portfolio based on credit risk profile | [1] | 57 | 62
Consumer [Member] | Consumer Indirect [Member] |  |  |
Credit Risk Profile, Segregated by Class [Abstract] |  |  |
Loan portfolio based on credit risk profile |  | 508,050 | 489,667
Consumer [Member] | Consumer Indirect [Member] | Performing [Member] |  |  |
Credit Risk Profile, Segregated by Class [Abstract] |  |  |
Loan portfolio based on credit risk profile |  | 507,729 | 489,019
Consumer [Member] | Consumer Indirect [Member] | Nonperforming [Member] |  |  |
Credit Risk Profile, Segregated by Class [Abstract] |  |  |
Loan portfolio based on credit risk profile | [1] | 321 | 648
Residential and Consumer Portfolio Segments [Member] |  |  |
Credit Risk Profile, Segregated by Class [Abstract] |  |  |
Loan portfolio based on credit risk profile |  | 1,541,371 | 1,503,705
Residential and Consumer Portfolio Segments [Member] | Performing [Member] |  |  |
Credit Risk Profile, Segregated by Class [Abstract] |  |  |
Loan portfolio based on credit risk profile |  | 1,530,022 | 1,487,362
Residential and Consumer Portfolio Segments [Member] | Nonperforming [Member] |  |  |
Credit Risk Profile, Segregated by Class [Abstract] |  |  |
Loan portfolio based on credit risk profile | [1] | $ 11,349 | $ 16,343
[1] | A loan is considered nonperforming if it is 90 days or more past due and/or on nonaccrual.

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

X
- Definition Refers to the review period considered for loans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
Name: | ctbi_ReviewPeriodForLoans
Namespace Prefix: | ctbi_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount before allowance and after deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. 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=82891408&loc=d3e4428-111522 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5074-111524 + Details
Name: | us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Recorded investment of consumer mortgage loan receivables secured by residential real estate properties for which formal foreclosure proceedings are in process. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 35 -URI http://asc.fasb.org/extlink&oid=84173941&loc=SL49126937-111524 + Details
Name: | us-gaap_MortgageLoansInProcessOfForeclosureAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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

X
- Details
Name: | us-gaap_InternalCreditAssessmentAxis=us-gaap_PassMember
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_InternalCreditAssessmentAxis=us-gaap_SpecialMentionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InternalCreditAssessmentAxis=ctbi_OaemMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InternalCreditAssessmentAxis=us-gaap_SubstandardMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InternalCreditAssessmentAxis=us-gaap_DoubtfulMember
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=us-gaap_RealEstateLoanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=ctbi_CommercialOtherMember
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_FinancialInstrumentPerformanceStatusAxis=us-gaap_PerformingFinancingReceivableMember
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: |

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

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

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

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

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