XML 36 R25.htm IDEA: XBRL DOCUMENT
v3.4.0.3

Basis Of Presentation (Details) - d | 3 Months Ended
--- | ---
Mar. 31, 2016 | Mar. 31, 2015
Promotional Allowance [Line Items] |  |
Live Racing Days | 54 | 57

X
- Definition Live Racing Days + References No definition available. + Details
Name: | chdn_LiveRacingDays
Namespace Prefix: | chdn_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Promotional Allowance [Line Items] + References No definition available. + Details
Name: | chdn_PromotionalAllowanceLineItems
Namespace Prefix: | chdn_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration