Debt Instrument, Unamortized Premium Percentage

No definition available.

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Period Type:	duration

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

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+ Details

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

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

+ Details

Name:	us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- 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_DebtInstrumentLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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+ Details

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Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount, before accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

+ References

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+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Details

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Namespace Prefix:
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Balance Type:
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- Details

Name:	us-gaap_DebtInstrumentAxis=chdn_SeniorNotesDue2027Member
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- Details

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- Details

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- Details

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- Details

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- Details

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Debt - Senior Notes (Details) - Senior Notes - USD ($) $ in Millions	Mar. 17, 2021	Apr. 13, 2022	Mar. 25, 2019	Dec. 27, 2017
2027 Senior Notes
Debt Instrument [Line Items]
Face amount of debt issuance			$ 600.0
Stated interest rate			5.50%
Debt issuance costs			$ 8.9
Senior Notes Due 2028, Existing
Debt Instrument [Line Items]
Face amount of debt issuance	$ 500.0			$ 500.0
Stated interest rate	4.75%			4.75%
Debt issuance costs	$ 3.4
2021 Senior Notes 5.375%
Debt Instrument [Line Items]
Face amount of debt issuance				$ 600.0
Stated interest rate				5.375%
2028 Senior Notes 4.75%
Debt Instrument [Line Items]
Face amount of debt issuance	700.0
Debt issuance costs				$ 7.7
Senior Notes Due 2028, Additional
Debt Instrument [Line Items]
Face amount of debt issuance	$ 200.0
Stated interest rate	4.75%
Redemption price, percentage of face amount	103.25%
Premium percentage	3.25%
2030 Senior Notes
Debt Instrument [Line Items]
Face amount of debt issuance		$ 1,200.0
Stated interest rate		5.75%
Debt issuance costs		$ 18.3