XML 76 R60.htm IDEA: XBRL DOCUMENT
v3.22.0.1

Loans (Details) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2021 USD ($) contract | Dec. 31, 2020 USD ($)
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans and Leases Receivable, Gross | $ 3,543,814 | $ 3,622,119
Commercial Loan |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans and Leases Receivable, Gross | 346,184 | $ 372,989
Commercial Loan | Small Business Administration Paycheck Protection Program |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans and Leases Receivable, Gross | $ 136,000 |
Financing Receivable Number of Contracts | contract | 2,500 |
Small Business Administration Paycheck Protection Program Forgiveness Proceeds | $ 129,000 |

X
- Definition Financing Receivable Number of Contracts + References No definition available. + Details
Name: | chco_FinancingReceivableNumberOfContracts
Namespace Prefix: | chco_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Small Business Administration Paycheck Protection Program Forgiveness Proceeds + References No definition available. + Details
Name: | chco_SmallBusinessAdministrationPaycheckProtectionProgramForgivenessProceeds
Namespace Prefix: | chco_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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 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=124259787&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_CommercialLoanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ClassOfFinancingReceivableTypeOfBorrowerAxis=chco_SmallBusinessAdministrationPaycheckProtectionProgramMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |