Estimated Cost Of Providing Promotional Allowances

No definition available.

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Namespace Prefix:	chdn_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- 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

- Details

Name:	chdn_PromotionalAllowanceLineItems
Namespace Prefix:	chdn_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Value of deferred revenue or cost to provide products or services, which is expected to be recognized in income or incurred within one year or the normal operating cycle, if longer, resulting from customer loyalty program. Excludes liability associated with frequent flier programs. Includes liability associated with customer loyalty programs for other businesses, for example, but is not limited to, hotels, supermarkets, credit card companies, automobile rental companies, and book sellers.

+ References

No definition available.

+ Details

Name:	us-gaap_CustomerLoyaltyProgramLiabilityCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of income (loss) from a disposal group, net of income tax, reported as a separate component of income before extraordinary items after deduction or consideration of the amount allocable to noncontrolling interests. Includes, net of tax, income (loss) from operations during the phase-out period, gain (loss) on disposal, provision (or any reversals of earlier provisions) for loss on disposal, and adjustments of a prior period gain (loss) on disposal.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 810

-SubTopic 10

-Section 45

-Paragraph 19

-URI http://asc.fasb.org/extlink&oid=7656940&loc=SL4569616-111683

+ Details

Name:	us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

This element represents the estimated retail value of accommodations, food and beverage, and other services furnished to guests without charge.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 924

-SubTopic 605

-Section 45

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6472957&loc=d3e51325-107943

+ Details

Name:	us-gaap_PromotionalAllowances
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Basis Of Presentation (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014 D	Jun. 30, 2013 D	Jun. 30, 2014 D	Jun. 30, 2013 D	Dec. 31, 2013
Promotional Allowance [Line Items]
Live Racing Days	114	124	206	180
Promotional Allowances	$ 8.7	$ 9.1	$ 16.3	$ 16.4
Estimated Cost Of Providing Promotional Allowances	2.3	2.5	4.6	4.8
Customer Loyalty Program Liability, Current	2.1		2.1		2.1
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent
Racing Operations Segment [Member]
Promotional Allowance [Line Items]
Promotional Allowances	0.2	0.3	0.4	0.5
Online Operations
Promotional Allowance [Line Items]
Promotional Allowances	3.5	3.7	6.2	6.1
Gaming Segment [Member]
Promotional Allowance [Line Items]
Promotional Allowances	$ 5.0	$ 5.1	$ 9.7	$ 9.8