XML 90 R59.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Allowance For Loan Losses (Schedule Of Troubled Debt Restructurings) (Details) (USD $) In Thousands, unless otherwise specified | 9 Months Ended |
--- | --- | ---
Sep. 30, 2013 contract | Sep. 30, 2012 contract | Dec. 31, 2012
Financing Receivable, Modifications [Line Items] |  |  |
Accruing | $ 23,832 |  | $ 23,128
Non-Accruing | 978 |  | 580
Total | 24,810 |  | 23,708
Number Of Contracts | 46 | 1 |
Pre Modification Outstanding Recorded Investment | 4,789 | 144 |
Post Modification Outstanding Recorded Investment | 4,789 | 144 |
Commercial And Industrial [Member] |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Accruing | 91 |  | 101
Non-Accruing | 0 |  | 0
Total | 91 |  | 101
Number Of Contracts | 1 | 0 |
Pre Modification Outstanding Recorded Investment | 91 | 0 |
Post Modification Outstanding Recorded Investment | 91 | 0 |
Commercial Real Estate [Member] |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Accruing | 1,567 |  | 734
Non-Accruing | 0 |  | 0
Total | 1,567 |  | 734
Number Of Contracts | 3 | 0 |
Pre Modification Outstanding Recorded Investment | 1,567 | 0 |
Post Modification Outstanding Recorded Investment | 1,567 | 0 |
Residential Real Estate [Member] |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Accruing | 19,416 |  | 15,083
Non-Accruing | 964 |  | 162
Total | 20,380 |  | 15,245
Number Of Contracts | 30 | 0 |
Pre Modification Outstanding Recorded Investment | 2,808 | 0 |
Post Modification Outstanding Recorded Investment | 2,808 | 0 |
Home equity - junior lien [Member] |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Accruing | 2,758 |  | 7,068
Non-Accruing | 14 |  | 418
Total | 2,772 |  | 7,486
Number Of Contracts | 12 | 0 |
Pre Modification Outstanding Recorded Investment | 323 | 0 |
Post Modification Outstanding Recorded Investment | 323 | 0 |
Consumer [Member] |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Accruing | 0 |  | 142
Non-Accruing | 0 |  | 0
Total | 0 |  | 142
Number Of Contracts | 0 | 1 |
Pre Modification Outstanding Recorded Investment | 0 | 144 |
Post Modification Outstanding Recorded Investment | $ 0 | $ 144 |

X
- Definition Financing Receivable Modifications Recorded Investment Non Accruing Status For Troubled Debt Restructurings. + References No definition available. + Details
Name: | chco_FinancingReceivableModificationsRecordedInvestmentNonAccruingStatus
Namespace Prefix: | chco_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Financing Receivable Recorded Investment Accrual Status For Troubled Debt Restructurings + References No definition available. + Details
Name: | chco_FinancingReceivableRecordedInvestmentAccrualStatus
Namespace Prefix: | chco_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Troubled Debt Restructuring Modifications Number Of Contracts + References No definition available. + Details
Name: | chco_TroubledDebtRestructuringModificationsNumberOfContracts
Namespace Prefix: | chco_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Troubled Debt Restructuring Modifications Post Modification Recorded Investment + References No definition available. + Details
Name: | chco_TroubledDebtRestructuringModificationsPostModificationRecordedInvestment
Namespace Prefix: | chco_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Troubled Debt Restructuring Modifications Pre Modification Recorded Investment + References No definition available. + Details
Name: | chco_TroubledDebtRestructuringModificationsPreModificationRecordedInvestment
Namespace Prefix: | chco_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_FinancingReceivableModificationsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of the outstanding recorded investment related to financing receivables that have been modified by troubled debt restructurings. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 40 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6951948&loc=d3e18845-111554 + Details
Name: | us-gaap_FinancingReceivableModificationsRecordedInvestment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant