XML 62 R50.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Allowance For Loan Losses (Schedule Of Aging Analysis Of Accruing And Non-Accruing Loans) (Details) - USD ($) $ in Thousands | Jun. 30, 2018 | Dec. 31, 2017
--- | --- | ---
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current | $ 3,134,226 | $ 3,106,150
Non-accrual | 13,078 | 10,297
Gross loans | 3,155,468 | 3,127,410
Residential real estate |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current | 1,463,135 | 1,458,746
Non-accrual | 3,783 | 2,814
Gross loans | 1,472,916 | 1,468,278
Home equity |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current | 138,495 | 138,480
Non-accrual | 168 | 168
Gross loans | 139,245 | 139,499
Commercial and industrial |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current | 212,200 | 206,447
Non-accrual | 863 | 1,345
Gross loans | 213,687 | 208,484
Commercial real estate |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current | 1,286,381 | 1,269,520
Non-accrual | 7,707 | 5,970
Gross loans | 1,294,489 | 1,277,576
Consumer |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current | 30,546 | 29,108
Non-accrual | 557 | 0
Gross loans | 31,137 | 29,162
DDA overdrafts |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current | 3,469 | 3,849
Non-accrual | 0 | 0
Gross loans | 3,994 | 4,411
30-59 days |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing receivable, recorded investment, past due | 6,892 | 9,631
30-59 days | Residential real estate |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing receivable, recorded investment, past due | 5,097 | 5,990
30-59 days | Home equity |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing receivable, recorded investment, past due | 447 | 671
30-59 days | Commercial and industrial |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing receivable, recorded investment, past due | 624 | 549
30-59 days | Commercial real estate |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing receivable, recorded investment, past due | 188 | 1,841
30-59 days | Consumer |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing receivable, recorded investment, past due | 31 | 39
30-59 days | DDA overdrafts |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing receivable, recorded investment, past due | 505 | 541
60-89 days |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing receivable, recorded investment, past due | 1,127 | 1,070
60-89 days | Residential real estate |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing receivable, recorded investment, past due | 820 | 709
60-89 days | Home equity |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing receivable, recorded investment, past due | 71 | 88
60-89 days | Commercial and industrial |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing receivable, recorded investment, past due | 0 | 1
60-89 days | Commercial real estate |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing receivable, recorded investment, past due | 213 | 245
60-89 days | Consumer |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing receivable, recorded investment, past due | 3 | 13
60-89 days | DDA overdrafts |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing receivable, recorded investment, past due | 20 | 14
Over 90 days |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing receivable, recorded investment, past due | 145 | 262
Over 90 days | Residential real estate |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing receivable, recorded investment, past due | 81 | 19
Over 90 days | Home equity |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing receivable, recorded investment, past due | 64 | 92
Over 90 days | Commercial and industrial |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing receivable, recorded investment, past due | 0 | 142
Over 90 days | Commercial real estate |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing receivable, recorded investment, past due | 0 | 0
Over 90 days | Consumer |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing receivable, recorded investment, past due | 0 | 2
Over 90 days | DDA overdrafts |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Financing receivable, recorded investment, past due | $ 0 | $ 7

X
- Definition Financing receivables that are current. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7A -URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953401-111524 + Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentCurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Recorded investment in financing receivables that are on nonaccrual status as of the balance sheet date. + 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=84173941&loc=d3e5111-111524 + Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Recorded Investment in financing receivables that are past due at the balance sheet date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7A -URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953401-111524 + Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentPastDue
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=82891408&loc=d3e4428-111522 + Details
Name: | us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_CommercialRealEstateMember
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_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=chco_DemandDepositAccountOverdraftsMember
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: |