Basis Of Presentation	3 Months Ended
Mar. 31, 2016
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis Of Presentation	NOTE 1 — BASIS OF PRESENTATION AND SEASONALITY Basis of Presentation The Churchill Downs Incorporated (the "Company", "we", "us", "our") financial statements are presented in conformity with the requirements of this Quarterly Report on Form 10-Q and consequently do not include all of the disclosures normally required by U.S. generally accepted accounting principles ("GAAP") or those normally made in our Annual Report on Form 10-K. The year-end Condensed Consolidated Balance Sheet data was derived from audited financial statements but does not include all disclosures required by GAAP. The following information is unaudited. Tabular dollars are in millions, except as otherwise noted. All per share amounts assume dilution unless otherwise noted, and are based on unrounded amounts. This report should be read in conjunction with our Annual Report on Form 10-K for the year ended December 31, 2015. In the opinion of management, all adjustments necessary for a fair statement of this information have been made, and all such adjustments are of a normal, recurring nature. For the three months ended March 31, 2015, reclassifications of certain food & beverage operations between Fair Grounds and Fair Grounds Slots were made to conform with the current year presentation. Adjusted EBITDA, a non-GAAP measure of our operating results, for our joint venture, Miami Valley Gaming ("MVG"), and our equity investment, Saratoga Casino Holdings LLC ("SCH") was reclassified to exclude depreciation and amortization expense from our Casinos segment Adjusted EBITDA. There was no impact from these reclassifications on net income (loss) or cash flows. Our critical accounting policies are revenue recognition, goodwill and indefinite-lived intangible assets, property and equipment and income taxes. Our significant accounting policies are more fully described in Note 1 to the Consolidated Financial Statements included in Item 8. "Financial Statements and Supplementary Data" of our Annual Report on Form 10-K. Operating Segment Reclassifications On January 1, 2016, we realigned our I-Gaming and Bluff Media operations from our Other Investments segment to our TwinSpires segment to correspond with internal management reporting changes. Prior period segment financial information has been reclassified to conform to the 2016 presentation. Seasonality Racing Due to the seasonal nature of our live racing business, revenue and operating results for any interim quarter are generally not indicative of the revenues and operating results for the year and may not be comparable with results for the corresponding period of the previous year. Historically, we have had fewer live racing days during the first quarter of each year, and the majority of our live racing revenue occurs during the second quarter, with the running of the Kentucky Derby and the Kentucky Oaks. The Company conducted 54 live thoroughbred racing days during the first quarter of 2016, which compares to 57 live thoroughbred racing days during the first quarter of 2015. Casinos Casino revenue and earnings have historically been higher during the first quarter due to seasonal revenue from our predominately southern casino properties. TwinSpires Due to the seasonal nature of the racing business, revenue and operating results for any interim quarter are generally not indicative of the revenues and operating results for the year and may not be comparable with results for the corresponding period of the previous year. Historically, our revenue is higher in the second quarter with the running of the Kentucky Derby and the Kentucky Oaks. Big Fish Games Revenue from our Big Fish Games, Inc. ("Big Fish Games") segment also have a seasonal component and are typically lower during the summer months.

NOTE 1 — BASIS OF PRESENTATION AND SEASONALITY

Basis of Presentation

The Churchill Downs Incorporated (the "Company", "we", "us", "our") financial statements are presented in conformity with the requirements of this Quarterly Report on Form 10-Q and consequently do not include all of the disclosures normally required by U.S. generally accepted accounting principles ("GAAP") or those normally made in our Annual Report on Form 10-K. The year-end Condensed Consolidated Balance Sheet data was derived from audited financial statements but does not include all disclosures required by GAAP.

The following information is unaudited. Tabular dollars are in millions, except as otherwise noted. All per share amounts assume dilution unless otherwise noted, and are based on unrounded amounts. This report should be read in conjunction with our Annual Report on Form 10-K for the year ended December 31, 2015.

In the opinion of management, all adjustments necessary for a fair statement of this information have been made, and all such adjustments are of a normal, recurring nature. For the three months ended March 31, 2015, reclassifications of certain food & beverage operations between Fair Grounds and Fair Grounds Slots were made to conform with the current year presentation. Adjusted EBITDA, a non-GAAP measure of our operating results, for our joint venture, Miami Valley Gaming ("MVG"), and our equity investment, Saratoga Casino Holdings LLC ("SCH") was reclassified to exclude depreciation and amortization expense from our Casinos segment Adjusted EBITDA. There was no impact from these reclassifications on net income (loss) or cash flows.

Our critical accounting policies are revenue recognition, goodwill and indefinite-lived intangible assets, property and equipment and income taxes. Our significant accounting policies are more fully described in Note 1 to the Consolidated Financial Statements included in Item 8. "Financial Statements and Supplementary Data" of our Annual Report on Form 10-K.

Operating Segment Reclassifications

On January 1, 2016, we realigned our I-Gaming and Bluff Media operations from our Other Investments segment to our TwinSpires segment to correspond with internal management reporting changes. Prior period segment financial information has been reclassified to conform to the 2016 presentation.

Seasonality

Racing

Due to the seasonal nature of our live racing business, revenue and operating results for any interim quarter are generally not indicative of the revenues and operating results for the year and may not be comparable with results for the corresponding period of the previous year. Historically, we have had fewer live racing days during the first quarter of each year, and the majority of our live racing revenue occurs during the second quarter, with the running of the Kentucky Derby and the Kentucky Oaks. The Company conducted 54 live thoroughbred racing days during the first quarter of 2016, which compares to 57 live thoroughbred racing days during the first quarter of 2015.

Casinos

Casino revenue and earnings have historically been higher during the first quarter due to seasonal revenue from our predominately southern casino properties.

TwinSpires

Due to the seasonal nature of the racing business, revenue and operating results for any interim quarter are generally not indicative of the revenues and operating results for the year and may not be comparable with results for the corresponding period of the previous year. Historically, our revenue is higher in the second quarter with the running of the Kentucky Derby and the Kentucky Oaks.

Big Fish Games

Revenue from our Big Fish Games, Inc. ("Big Fish Games") segment also have a seasonal component and are typically lower during the summer months.