XML 69 R59.htm IDEA: XBRL DOCUMENT
v3.21.2

Segment Information - Summary of Capital Expenditures (Details) - USD ($) $ in Millions | 9 Months Ended
--- | ---
Sep. 30, 2021 | Sep. 30, 2020
Segment Reporting, Asset Reconciling Item [Line Items] |  |
Capital expenditures | $ 52.1 | $ 210.1
Operating Segments |  |
Segment Reporting, Asset Reconciling Item [Line Items] |  |
Capital expenditures | 49.5 | 205.6
Operating Segments | Live and Historical Racing |  |
Segment Reporting, Asset Reconciling Item [Line Items] |  |
Capital expenditures | 32.3 | 190.9
Operating Segments | TwinSpires |  |
Segment Reporting, Asset Reconciling Item [Line Items] |  |
Capital expenditures | 7.9 | 9.6
Operating Segments | Gaming |  |
Segment Reporting, Asset Reconciling Item [Line Items] |  |
Capital expenditures | 9.3 | 5.1
All Other |  |
Segment Reporting, Asset Reconciling Item [Line Items] |  |
Capital expenditures | $ 2.6 | $ 4.5

X
- Definition Amount of acquisition of long-lived, physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment. + References No definition available. + Details
Name: | us-gaap_PropertyPlantAndEquipmentAdditions
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
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_SegmentReportingAssetReconcilingItemLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | srt_ConsolidationItemsAxis=us-gaap_OperatingSegmentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=chdn_LiveAndHistoricalRacingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=chdn_TwinSpiresMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=chdn_GamingSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ConsolidationItemsAxis=us-gaap_CorporateNonSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |