XML 120 R29.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Derivative Instruments (Tables) | 6 Months Ended
--- | ---
Jun. 30, 2013
Derivative Instruments and Hedging Activities Disclosure [Abstract] |
Fair Value Of Derivative Instruments | The following table summarizes the fair value of these derivative instruments at June 30, 2013 and December 31, 2012 (in thousands):
Fair Value: | June 30, 2013 |  | December 31, 2012
Other Assets | $ | 5,758 |  |  | $ | 14,012 |
Other Liabilities | 5,758 |  |  | 14,012 |
Change In Fair Value Of Derivative Instruments | The following table summarizes the change in fair value of these derivative instruments for the three and six months ended June 30, 2013 and 2012:
| Three months ended June 30, |  | Six months ended June 30,
2013 |  | 2012 |  | 2013 |  | 2012
Change in Fair Value: |  |  |  |  |  |  |
Other income - derivative asset | $ | (6,211 | ) |  | $ | 4,016 |  |  | $ | (7,790 | ) |  | $ | 2,258 |
Other income - derivative liability | 6,211 |  |  | (4,016 | ) |  | 7,790 |  |  | (2,258 | )
Derivative Assets Offset in The Consolidated Balance Sheets | Information about financial instruments that are eligible for offset in the consolidated balance sheet as of June 30, 2013 is presented in the following tables (in thousands):
|  |  |  | Gross Amounts |  |
|  |  |  | Not Offset in the Statement |  |
|  |  |  | of Financial Position |  |
|  |  |  |  |  | Total |
|  |  |  |  |  | of Gross |
|  |  |  |  |  | Amounts |
|  |  |  |  |  | Not Offset in |
|  |  |  |  |  | the Statement |
|  |  |  |  |  | of Financial |
|  |  |  |  |  | Position |
|  |  |  | Netting |  | Including |
|  | Gross | Net Amounts | Adjustment |  | Applicable |
|  | Amounts | of Assets | per |  | Netting |
| Gross | Offset in the | presented in | Applicable |  | Agreement |
| Amounts of | Statement of | the Statement | Master | Fair Value | and Fair |
| Recognized | Financial | of Financial | Netting | of Financial | Value of |
Description | Assets | Position | Position | Arrangements | Collateral | Collateral | Net Amount
| (a) | (b) | (c)=(a)-(b) |  |  | (d) | (c)-(d)
Derivative assets: |  |  |  |  |  |  |
Interest rate swap agreements | $ | 5,758 |  |  | $ | 5,758 |  |  | $ | 5,758 |  | $ | 5,758 |  | $ | — |
Derivative Liabilities Offset in The Consolidated Balance Sheets |
|  |  |  | Gross Amounts |  |
|  |  |  | Not Offset in the Statement |  |
|  |  |  | of Financial Position |  |
|  |  |  |  |  | Total |
|  |  |  |  |  | of Gross |
|  |  |  |  |  | Amounts |
|  |  |  |  |  | Not Offset in |
|  |  |  |  |  | the Statement |
|  |  |  |  |  | of Financial |
|  |  |  |  |  | Position |
|  |  |  | Netting |  | Including |
|  | Gross | Net Amounts | Adjustment |  | Applicable |
|  | Amounts | of Liabilities | per |  | Netting |
| Gross | Offset in the | presented in | Applicable |  | Agreement |
| Amounts of | Statement of | the Statement | Master | Fair Value | and Fair |
| Recognized | Financial | of Financial | Netting | of Financial | Value of |
Description | Liabilities | Position | Position | Arrangements | Collateral | Collateral | Net Amount
| (a) | (b) | (c)=(a)-(b) |  |  | (d) | (c)-(d)
Derivative liabilities: |  |  |  |  |  |
Interest rate swap agreements | $ | 5,758 |  |  | $ | 5,758 |  |  | $ | 6,152 |  | $ | 6,152 |  | $ | — |

X
- Definition Tabular disclosure of derivative and other financial assets that are subject to offsetting, including master netting arrangements. + References No definition available. + Details
Name: | chco_OffsettingAssetsTableTextBlock
Namespace Prefix: | chco_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of derivative and other financial liabilities that are subject to offsetting, including master netting arrangements. + References No definition available. + Details
Name: | chco_OffsettingLiabilitiesTableTextBlock
Namespace Prefix: | chco_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Summary Of The Change In Fair Value Of Derivative Instruments [Table Text Block] + References No definition available. + Details
Name: | chco_SummaryOfChangeInFairValueOfDerivativeInstrumentsTableTextBlock
Namespace Prefix: | chco_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

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

X
- Definition Tabular disclosure of the location and fair value amounts of derivative instruments (and nonderivative instruments that are designated and qualify as hedging instruments) reported in the statement of financial position. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 133 -Paragraph 205G -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5624163-113959 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 133 -Paragraph 44C -Subparagraph a -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
Name: | us-gaap_ScheduleOfDerivativeInstrumentsInStatementOfFinancialPositionFairValueTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration