XML 58 R72.htm IDEA: XBRL DOCUMENT
v2.4.1.9

Share-Based Compensation Plans (Details) (USD $) | 12 Months Ended |  |  |
--- | --- | --- | --- | ---
Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011 | May 29, 2013 | Mar. 21, 2013 | Dec. 31, 2010
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Compensation expense | $ 11,931,000 us-gaap_ShareBasedCompensation | $ 21,482,000 us-gaap_ShareBasedCompensation | $ 7,613,000 us-gaap_ShareBasedCompensation |  |  |  |
Shares authorized to be purchased | 50,000,000 us-gaap_CommonStockSharesAuthorized | 50,000,000 us-gaap_CommonStockSharesAuthorized |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized | 84,500 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized |  |  |  | 155,000 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized | 92,000 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized |
Trading Days |  | 20 days |  |  |  |  |
Employee Stock Purchase Plan [Abstract] |  |  |  |  |  |  |
Compensation expense recognized | 11,932,000 us-gaap_AllocatedShareBasedCompensationExpense | 21,482,000 us-gaap_AllocatedShareBasedCompensationExpense | 13,993,000 us-gaap_AllocatedShareBasedCompensationExpense |  |  |  |
Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Share-based Awards Other than Options | 2,800,000 us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions |  |  |  |  |  |
Restricted stock |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized | 5,900,000 us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember |  |  |  |  |  |
Recognization of share-based compensation expenses, weighted average period | 1 year 11 months |  |  |  |  |  |
Stock Options |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Shares exercised | (182,000)us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember | (7,000)us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember | (153,000)us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember |  |  |  |
Total intrinsic value of options exercised | 9,600,000 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember | 300,000 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember | 5,700,000 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember |  |  |  |
Cash received from exercised options | 6,400,000 us-gaap_StockIssuedDuringPeriodValueIssuedForCash / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember | 300,000 us-gaap_StockIssuedDuringPeriodValueIssuedForCash / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember | 3,400,000 us-gaap_StockIssuedDuringPeriodValueIssuedForCash / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember |  |  |  |
Shares exercisable at period end |  | 193,000 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember |  |  |  |  |
Shares exercised, weighted average exercise price |  | $ 36.04 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember |  |  |  |  |
97 Plan |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Stock options, contractual term | 10 years |  |  |  |  |  |
Award vesting period | 3 years |  |  |  |  |  |
07 Incentive Plan |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Stock options, contractual term | 10 years |  |  |  |  |  |
Award vesting period | 3 years |  |  |  |  |  |
Minimal age when award becomes fully vested | 60 years |  |  |  |  |  |
Amended and restated employment agreement | Common Stock |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Stock options, contractual term |  |  | 6 years |  |  |  |
Award vesting period |  |  | 3 years |  |  |  |
Shares authorized to be purchased |  |  |  |  |  |  | 180,000 us-gaap_CommonStockSharesAuthorized / us-gaap_AwardTypeAxis = us-gaap_CommonStockMember / us-gaap_PlanNameAxis = chdn_AmendedAndRestatedEmploymentAgreementMember
Employee agreement | Common Stock |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Award vesting period |  |  | 3 years |  |  |  |
Shares authorized to be purchased |  |  |  |  |  |  | 130,000 us-gaap_CommonStockSharesAuthorized / us-gaap_AwardTypeAxis = us-gaap_CommonStockMember / us-gaap_PlanNameAxis = chdn_EmployeeAgreementMember
Shares exercised | (180,000)us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised / us-gaap_AwardTypeAxis = us-gaap_CommonStockMember / us-gaap_PlanNameAxis = chdn_EmployeeAgreementMember |  | (130,000)us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised / us-gaap_AwardTypeAxis = us-gaap_CommonStockMember / us-gaap_PlanNameAxis = chdn_EmployeeAgreementMember |  |  |  |
Shares granted (in dollars per share) | $ 35.19 chdn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantedPricePerShare / us-gaap_AwardTypeAxis = us-gaap_CommonStockMember / us-gaap_PlanNameAxis = chdn_EmployeeAgreementMember |  | $ 36.16 chdn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantedPricePerShare / us-gaap_AwardTypeAxis = us-gaap_CommonStockMember / us-gaap_PlanNameAxis = chdn_EmployeeAgreementMember |  |  |  |
Shares exercised, minimum price | $ 85.00 us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit / us-gaap_AwardTypeAxis = us-gaap_CommonStockMember / us-gaap_PlanNameAxis = chdn_EmployeeAgreementMember |  | $ 57.36 us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit / us-gaap_AwardTypeAxis = us-gaap_CommonStockMember / us-gaap_PlanNameAxis = chdn_EmployeeAgreementMember |  |  |  |
Shares exercised, maximum price | $ 91.33 us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit / us-gaap_AwardTypeAxis = us-gaap_CommonStockMember / us-gaap_PlanNameAxis = chdn_EmployeeAgreementMember |  | $ 60.05 us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit / us-gaap_AwardTypeAxis = us-gaap_CommonStockMember / us-gaap_PlanNameAxis = chdn_EmployeeAgreementMember |  |  |  |
Omnibus Stock Incentive Plans, 2007 New LTIP [Member] |  |  |  |  |  |  |
Employee Stock Purchase Plan [Abstract] |  |  |  |  |  |  |
Compensation expense recognized | 8,300,000 us-gaap_AllocatedShareBasedCompensationExpense / us-gaap_PlanNameAxis = chdn_OmnibusStockIncentivePlans2007NewLTIPMember | 12,800,000 us-gaap_AllocatedShareBasedCompensationExpense / us-gaap_PlanNameAxis = chdn_OmnibusStockIncentivePlans2007NewLTIPMember |  |  |  |  |
04 Plan |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Award vesting period | 5 years |  |  |  |  |  |
Minimal age when award becomes fully vested | 60 years |  |  |  |  |  |
Previous employment agreement | Restricted stock |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Annual interest rate |  |  |  | 3.00%chdn_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityOptionsOtherThanOptionsDirectorCompensationAccumulatedDividendEquivalentAnnualInterestRate / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember / us-gaap_PlanNameAxis = chdn_PreviousEmploymentAgreementMember |  |  |
Period before options become vested subsequent to termination |  |  |  | 6 months |  |  |
Churchill 2004 and 2007 Plan [Member] | Restricted stock |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Shares, vested | (346,000)us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember / us-gaap_PlanNameAxis = chdn_Churchill2004And2007PlanMember | (316,000)us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember / us-gaap_PlanNameAxis = chdn_Churchill2004And2007PlanMember | (221,000)us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember / us-gaap_PlanNameAxis = chdn_Churchill2004And2007PlanMember |  |  |  |
Shares held by Company subject to performance-based vesting criteria | 341,000 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember / us-gaap_PlanNameAxis = chdn_Churchill2004And2007PlanMember | 673,000 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember / us-gaap_PlanNameAxis = chdn_Churchill2004And2007PlanMember | 379,000 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember / us-gaap_PlanNameAxis = chdn_Churchill2004And2007PlanMember | 419,000 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember / us-gaap_PlanNameAxis = chdn_Churchill2004And2007PlanMember |  |  |
Minimum | Common Stock |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Recognization of share-based compensation expenses, weighted average period | 17 months |  |  |  |  |  |
Employee Stock Purchase Plan [Member] |  |  |  |  |  |  |
Employee Stock Purchase Plan [Abstract] |  |  |  |  |  |  |
Number of hours required to be considered a full time employee | 20 hours |  |  |  |  |  |
Number of months per year that an employee needs to work to be considered full-time | 5 months |  |  |  |  |  |
Percentage of common stock purchase price that employee allowed to purchase at | 85.00%chdn_EmployeeStockPurchasePlanExerciseCriteriaPercentageOfCommonStockAllowedForEmployeePurchase / us-gaap_EmployeeStockOwnershipPlanESOPDisclosuresByPlanAxis = chdn_EmployeeStockPurchasePlanMember |  |  |  |  |  |
Maximum stock allowed to be purchased by employee in one year, value | 25,000 chdn_EmployeeStockPurchasePlanMaximumStockAllowedToBePurchasedByEmployeeInOneYearValue / us-gaap_EmployeeStockOwnershipPlanESOPDisclosuresByPlanAxis = chdn_EmployeeStockPurchasePlanMember |  |  |  |  |  |
Stock sold by company to employees | 15,000 us-gaap_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans / us-gaap_EmployeeStockOwnershipPlanESOPDisclosuresByPlanAxis = chdn_EmployeeStockPurchasePlanMember |  |  |  |  |  |
Compensation expense recognized | $ 400,000 us-gaap_AllocatedShareBasedCompensationExpense / us-gaap_EmployeeStockOwnershipPlanESOPDisclosuresByPlanAxis = chdn_EmployeeStockPurchasePlanMember |  |  |  |  |  |
Criteria One | Amended and restated employment agreement | Restricted stock |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Restricted shares issued to director | 30,000 us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember / chdn_EmploymentAgrrementCriteriaAxis = chdn_CriteriaOneMember / us-gaap_PlanNameAxis = chdn_AmendedAndRestatedEmploymentAgreementMember | 15,000 us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember / chdn_EmploymentAgrrementCriteriaAxis = chdn_CriteriaOneMember / us-gaap_PlanNameAxis = chdn_AmendedAndRestatedEmploymentAgreementMember |  | 45,000 us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember / chdn_EmploymentAgrrementCriteriaAxis = chdn_CriteriaOneMember / us-gaap_PlanNameAxis = chdn_AmendedAndRestatedEmploymentAgreementMember |  |  |
Consecutive trading days mimimum price per share must be met for options to vest |  |  |  | 20 days |  |  |
Criteria One | Previous employment agreement | Restricted stock |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Restricted shares issued to director |  | 60,000 us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember / chdn_EmploymentAgrrementCriteriaAxis = chdn_CriteriaOneMember / us-gaap_PlanNameAxis = chdn_PreviousEmploymentAgreementMember |  | 90,000 us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember / chdn_EmploymentAgrrementCriteriaAxis = chdn_CriteriaOneMember / us-gaap_PlanNameAxis = chdn_PreviousEmploymentAgreementMember |  |  |
Consecutive trading days mimimum price per share must be met for options to vest |  |  |  | 20 days |  |  |
Criteria Two | Amended and restated employment agreement | Restricted stock |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Award vesting period |  |  |  | 6 years |  |  |
Restricted shares required before shares become exercisable |  |  |  | 81,250 chdn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsDirectorCompensationAgreementTotalNumberOfOptionsRequiredBeforeOptionsBecomeExercisable / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember / chdn_EmploymentAgrrementCriteriaAxis = chdn_CriteriaTwoMember / us-gaap_PlanNameAxis = chdn_AmendedAndRestatedEmploymentAgreementMember |  |  |
Criteria Two | Previous employment agreement | Restricted stock |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Award vesting period |  |  |  | 5 years |  |  |
Restricted shares required before shares become exercisable |  |  |  | 65,000 chdn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsDirectorCompensationAgreementTotalNumberOfOptionsRequiredBeforeOptionsBecomeExercisable / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember / chdn_EmploymentAgrrementCriteriaAxis = chdn_CriteriaTwoMember / us-gaap_PlanNameAxis = chdn_PreviousEmploymentAgreementMember |  |  |
Consecutive trading days mimimum price per share must be met for options to vest |  |  |  | 10 days |  |  |
Criteria Three | Previous employment agreement | Restricted stock |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Award vesting period |  |  |  | 5 years |  |  |
Restricted shares required before shares become exercisable |  |  |  | 65,000 chdn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsDirectorCompensationAgreementTotalNumberOfOptionsRequiredBeforeOptionsBecomeExercisable / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember / chdn_EmploymentAgrrementCriteriaAxis = chdn_CriteriaThreeMember / us-gaap_PlanNameAxis = chdn_PreviousEmploymentAgreementMember |  |  |
Performance-Based Awards [Member] | Churchill 2004 and 2007 Plan [Member] | Restricted stock |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Shares, vested | (239,000)us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember / us-gaap_PlanNameAxis = chdn_Churchill2004And2007PlanMember / us-gaap_StatementEquityComponentsAxis = chdn_PerformanceBasedAwardsMember | (60,000)us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember / us-gaap_PlanNameAxis = chdn_Churchill2004And2007PlanMember / us-gaap_StatementEquityComponentsAxis = chdn_PerformanceBasedAwardsMember | (52,000)us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember / us-gaap_PlanNameAxis = chdn_Churchill2004And2007PlanMember / us-gaap_StatementEquityComponentsAxis = chdn_PerformanceBasedAwardsMember |  |  |  |
Shares held by Company subject to performance-based vesting criteria | 84,500 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember / us-gaap_PlanNameAxis = chdn_Churchill2004And2007PlanMember / us-gaap_StatementEquityComponentsAxis = chdn_PerformanceBasedAwardsMember | 324,000 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember / us-gaap_PlanNameAxis = chdn_Churchill2004And2007PlanMember / us-gaap_StatementEquityComponentsAxis = chdn_PerformanceBasedAwardsMember | 60,000 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember / us-gaap_PlanNameAxis = chdn_Churchill2004And2007PlanMember / us-gaap_StatementEquityComponentsAxis = chdn_PerformanceBasedAwardsMember | 112,000 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember / us-gaap_PlanNameAxis = chdn_Churchill2004And2007PlanMember / us-gaap_StatementEquityComponentsAxis = chdn_PerformanceBasedAwardsMember |  |  |

X
- Definition Employee Stock Purchase Plan, Exercise Criteria, Percentage of Common Stock Allowed For Employee Purchase + References No definition available. + Details
Name: | chdn_EmployeeStockPurchasePlanExerciseCriteriaPercentageOfCommonStockAllowedForEmployeePurchase
Namespace Prefix: | chdn_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Employee Stock Purchase Plan, Maximum Stock Allowed to be Purchased by Employee in One Year, Value + References No definition available. + Details
Name: | chdn_EmployeeStockPurchasePlanMaximumStockAllowedToBePurchasedByEmployeeInOneYearValue
Namespace Prefix: | chdn_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Number of Hours Per Week Required to be Considered a Full Time Employee + References No definition available. + Details
Name: | chdn_NumberOfHoursRequiredToBeConsideredFullTimeEmployee
Namespace Prefix: | chdn_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of Months, Per Year, That Need to be Worked For Employee to be Considered Full-time + References No definition available. + Details
Name: | chdn_NumberOfMonthsPerYearThatNeedToBeWorkedForEmployeeToBeConsideredFullTime
Namespace Prefix: | chdn_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Share-based Compensation Arrangement by Share-based Award, Equity Instrument Other Than Options, Director Compensation, Period After Termination Before Options Vests + References No definition available. + Details
Name: | chdn_ShareBasedCompensationArrangementByShareBasedAwardEquityInstrumentOtherThanOptionsDirectorCompensationPeriodAfterTerminationBeforeOptionsVests
Namespace Prefix: | chdn_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other Than Options, Consecutive Trading Days Minimum Price per Share Needs to be Met In Order For Options To Vest + References No definition available. + Details
Name: | chdn_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsConsecutiveTradingDaysMinimumPricePerShareNeedsToBeMetInOrderForOptionsToVest
Namespace Prefix: | chdn_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Share-based Compensation Arrangement by Share-based Payment Award, Equity Options Other Than Options, Director Compensation, Accumulated Dividend Equivalent, Annual Interest Rate + References No definition available. + Details
Name: | chdn_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityOptionsOtherThanOptionsDirectorCompensationAccumulatedDividendEquivalentAnnualInterestRate
Namespace Prefix: | chdn_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Share-based Compensation Arrangement by Share-based Payment Award, Minimal Age Award Becomes Vested + References No definition available. + Details
Name: | chdn_ShareBasedCompensationArrangementByShareBasedPaymentAwardMinimalAgeAwardBecomesVested
Namespace Prefix: | chdn_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Share-based Compensation Arrangement by Share-based Payment Award, Options, Contractual Term + References No definition available. + Details
Name: | chdn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsContractualTerm
Namespace Prefix: | chdn_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Share-based Compensation Arrangement by Share-based Payment Award, Options, Director Compensation Agreement, Total Number of Options Required Before Options Become Exercisable + References No definition available. + Details
Name: | chdn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsDirectorCompensationAgreementTotalNumberOfOptionsRequiredBeforeOptionsBecomeExercisable
Namespace Prefix: | chdn_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Share-based Compensation Arrangement by Share-based Payment Award, Options, Granted, Price Per Share + References No definition available. + Details
Name: | chdn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantedPricePerShare
Namespace Prefix: | chdn_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Trading Days + References No definition available. + Details
Name: | chdn_TradingDays
Namespace Prefix: | chdn_
Data Type: | us-types:durationStringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 14.F) -URI http://asc.fasb.org/extlink&oid=27013229&loc=d3e301413-122809 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1)(i) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 14 -Section F + Details
Name: | us-gaap_AllocatedShareBasedCompensationExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The maximum number of common shares permitted to be issued by an entity's charter and bylaws. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.29) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 30 -Article 5 + Details
Name: | us-gaap_CommonStockSharesAuthorized
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

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

X
- Definition Unrecognized cost of unvested share-based compensation awards. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Unrecognized cost of unvested share-based awards, other than options, awarded to employees as compensation. + References No definition available. + Details
Name: | us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 + Details
Name: | us-gaap_ShareBasedCompensation
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

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

X
- Definition The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The floor of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition The ceiling of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of shares issued during the period as a result of an employee stock purchase plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29, 30 -Article 5 + Details
Name: | us-gaap_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of shares issued during the period related to Restricted Stock Awards, net of any shares forfeited. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29, 30 -Article 5 + Details
Name: | us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of share options (or share units) exercised during the current period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.28,29) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29, 30 -Article 5 + Details
Name: | us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Value of shares issued as consideration for cash for development stage entities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 915 -SubTopic 215 -Section 45 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6472370&loc=d3e38297-110927 + Details
Name: | us-gaap_StockIssuedDuringPeriodValueIssuedForCash
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | chdn_EmploymentAgrrementCriteriaAxis=chdn_CriteriaOneMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | chdn_EmploymentAgrrementCriteriaAxis=chdn_CriteriaThreeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | chdn_EmploymentAgrrementCriteriaAxis=chdn_CriteriaTwoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AwardTypeAxis=us-gaap_EmployeeStockOptionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AwardTypeAxis=us-gaap_RestrictedStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_EmployeeStockOwnershipPlanESOPDisclosuresByPlanAxis=chdn_EmployeeStockPurchasePlanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PlanNameAxis=chdn_AmendedAndRestatedEmploymentAgreementMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PlanNameAxis=chdn_Churchill2004And2007PlanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PlanNameAxis=chdn_ChurchillDownsIncorporated1997StockOptionPlanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PlanNameAxis=chdn_ChurchillDownsIncorporated2004RestrictedStockPlanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PlanNameAxis=chdn_ChurchillDownsIncorporated2007OmnibusStockIncentivePlanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PlanNameAxis=chdn_EmployeeAgreementMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PlanNameAxis=chdn_OmnibusStockIncentivePlans2007NewLTIPMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PlanNameAxis=chdn_PreviousEmploymentAgreementMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RangeAxis=us-gaap_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementEquityComponentsAxis=chdn_PerformanceBasedAwardsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |