XML 48 R26.htm IDEA: XBRL DOCUMENT
v2.4.0.6

Natural Disasters (Details) (Churchill Downs, Hail [Member], USD $) In Millions, unless otherwise specified | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2013 | Dec. 31, 2012
Business Interruption Loss [Line Items] |  |
Insurance Deductible |  | $ 0.5
Insurance Settlements, Partial Settlement Received |  | 0.6
Insurance Settlements, Cash Settlement Received | 0.4 | 1.1
Scenario, Forecast [Member] |  |
Business Interruption Loss [Line Items] |  |
Unusual or Infrequent Item, Net of Insurance Proceeds | $ 0.4 |

X
- Definition Insurance Deductible + References No definition available. + Details
Name: | chdn_InsuranceDeductible
Namespace Prefix: | chdn_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Insurance Settlements, Cash Settlement Received + References No definition available. + Details
Name: | chdn_InsuranceSettlementsCashSettlementReceived
Namespace Prefix: | chdn_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Insurance Settlements, Partial Settlement Received + References No definition available. + Details
Name: | chdn_InsuranceSettlementsPartialSettlementReceived
Namespace Prefix: | chdn_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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

X
- Definition Difference of unusual or infrequent items gross less applicable insurance proceeds. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 55 -Paragraph 66 -URI http://asc.fasb.org/extlink&oid=21917533&loc=d3e34211-109320 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 605 -SubTopic 40 -Section 25 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6407921&loc=d3e59193-111647 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 30 -Paragraph 26 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 605 -SubTopic 40 -Section 25 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6407921&loc=d3e59170-111647 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 20 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6365513&loc=d3e15138-107781 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name FASB Interpretation (FIN) -Number 30 -Paragraph 2, 3, 4, 5 -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 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 10 -Section 60 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6395305&loc=d3e11642-108343 + Details
Name: | us-gaap_UnusualOrInfrequentItemNetOfInsuranceProceeds
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration