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Segment Information - Information About Reported Segments (Details) | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2018 USD ($) Segments | Jun. 30, 2017 USD ($) | Jun. 30, 2018 USD ($) | Jun. 30, 2017 USD ($)
Segment Reporting Information [Line Items] |  |  |  |
Racing | $ 182,500,000 | $ 165,300,000 | $ 206,200,000 | $ 189,200,000
TwinSpires | 93,700,000 | 80,500,000 | 156,900,000 | 132,500,000
Casino | 98,200,000 | 88,300,000 | 196,300,000 | 175,800,000
Other Investments | 5,000,000 | 5,200,000 | 9,300,000 | 9,300,000
Adjusted EBITDA | $ 174,500,000 | 154,000,000 | 223,700,000 | 190,300,000
Number of Operating Segments | Segments | 5 |  |  |
Property, Plant and Equipment, Additions |  |  | 72,200,000 | 64,000,000
Intercompany net revenues | $ 0 | 0 | 0 | 0
Comprehensive income | 102,900,000 | 78,000,000 | 284,900,000 | 85,200,000
Foreign currency translation, net of tax | 0 | 300,000 | 0 | 400,000
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Tax and Reclassification Adjustment, Attributable to Noncontrolling Interest | (200,000) | 0 | (200,000) | 0
Net income | 103,100,000 | 78,300,000 | 285,100,000 | 85,600,000
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent | 100,000 | (5,600,000) | (167,800,000) | (10,700,000)
Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent | 103,200,000 | 72,700,000 | 117,300,000 | 74,900,000
Depreciation and amortization | 15,300,000 | 14,400,000 | 29,100,000 | 49,300,000
Interest expense | 9,700,000 | 11,600,000 |  |
Income tax (provision) benefit | 32,800,000 | 47,000,000 | 35,400,000 | 47,600,000
Earnings Before Interest Taxes Depreciation and Amortization | 161,000,000 | 145,700,000 |  |
Stock-based compensation | 6,400,000 | 4,400,000 | 12,600,000 | 11,700,000
Pre-Opening Costs | 700,000 | 300,000 |  |
Other income, expense: | 0 | 200,000 |  |
Interest, depreciation and amortization expense related to equity investments | 4,300,000 | 3,100,000 |  |
Transaction expense, net | 2,100,000 | 500,000 | 3,500,000 | 500,000
Calder exit costs | 0 | 200,000 | 0 | 600,000
Total adjustments to EBITDA | 13,500,000 | 8,300,000 | 22,600,000 | 15,800,000
Adjusted EBITDA | 174,500,000 | 154,000,000 | 223,700,000 | 190,300,000
Racing Segment [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Racing | 182,500,000 | 165,300,000 | 206,200,000 | 189,200,000
Adjusted EBITDA | 109,100,000 | 98,700,000 | 99,700,000 | 89,000,000
Property, Plant and Equipment, Additions |  |  | 43,000,000 | 38,400,000
Intercompany net revenues | 11,600,000 | 10,400,000 | 14,100,000 | 12,600,000
Racing Segment [Member] | Churchill Downs |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Racing | 154,900,000 | 136,700,000 | 156,900,000 | 139,000,000
Intercompany net revenues | 9,400,000 | 8,400,000 | 9,700,000 | 8,700,000
Racing Segment [Member] | Arlington Park |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Racing | 17,700,000 | 18,000,000 | 26,000,000 | 26,500,000
Intercompany net revenues | 2,100,000 | 1,900,000 | 3,300,000 | 2,900,000
Racing Segment [Member] | Fair Grounds |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Racing | 9,200,000 | 10,000,000 | 22,000,000 | 22,500,000
Intercompany net revenues | 100,000 | 100,000 | 1,100,000 | 1,000,000
Racing Segment [Member] | Calder |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Racing | 700,000 | 600,000 | 1,300,000 | 1,200,000
Casino Segment [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Casino | 98,200,000 | 88,300,000 | 196,300,000 | 175,800,000
Adjusted EBITDA | 43,900,000 | 37,500,000 | 88,200,000 | 72,800,000
Property, Plant and Equipment, Additions |  |  | 5,900,000 | 15,600,000
Casino Segment [Member] | Oxford Casino |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Casino | 26,200,000 | 23,100,000 | 50,400,000 | 44,000,000
Casino Segment [Member] | Riverwalk Casino |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Casino | 13,600,000 | 12,000,000 | 28,000,000 | 23,500,000
Casino Segment [Member] | Harlows Casino |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Casino | 12,500,000 | 12,500,000 | 25,800,000 | 26,000,000
Casino Segment [Member] | Calder Casinos |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Casino | 25,300,000 | 21,800,000 | 49,600,000 | 43,200,000
Casino Segment [Member] | Fair Grounds Slots |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Casino | 9,200,000 | 8,800,000 | 19,800,000 | 19,000,000
Casino Segment [Member] | VSI |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Casino | 11,100,000 | 9,800,000 | 22,100,000 | 19,500,000
Casino Segment [Member] | Saratoga Casino Holdings, LLC [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Casino | 300,000 | 300,000 | 600,000 | 600,000
TwinSpires [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
TwinSpires | 93,700,000 | 80,500,000 | 156,900,000 | 132,500,000
Adjusted EBITDA | 23,100,000 | 19,300,000 | 39,600,000 | 32,500,000
Property, Plant and Equipment, Additions |  |  | 4,700,000 | 5,200,000
Intercompany net revenues | 400,000 | 300,000 | 800,000 | 600,000
Other Investments Segment [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Other Investments | 5,000,000 | 5,200,000 | 9,300,000 | 9,300,000
Property, Plant and Equipment, Additions |  |  | 17,600,000 | 700,000
Intercompany net revenues | 1,500,000 | 1,300,000 | 2,700,000 | 2,700,000
Corporate |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Adjusted EBITDA | (2,700,000) | (2,800,000) | (5,200,000) | (5,900,000)
Property, Plant and Equipment, Additions |  |  | 1,000,000 | 600,000
Intersegment Eliminations [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Intercompany net revenues | (13,500,000) | (12,000,000) | (17,600,000) | (15,900,000)
Saratoga Harness Racing Inc Joint Venture [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Adjusted Corporate EBITDA | (2,700,000.0) | (2,800,000.0) | (5,200,000.0) | (5,900,000.0)
Saratoga Harness Racing Inc Joint Venture [Member] | Racing Segment [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Adjusted EBITDA | 109,100,000.0 | 98,700,000.0 | 99,700,000.0 | 89,000,000
Saratoga Harness Racing Inc Joint Venture [Member] | Casino Segment [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Adjusted EBITDA | 43,900,000.0 | 37,500,000.0 | 88,200,000.0 | 72,800,000.0
Saratoga Harness Racing Inc Joint Venture [Member] | TwinSpires [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Adjusted EBITDA | 23,100,000.0 | 19,300,000.0 | 39,600,000.0 | 32,500,000.0
Saratoga Harness Racing Inc Joint Venture [Member] | Other Investments Segment [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Adjusted EBITDA | 1,100,000.0 | 1,300,000.0 | 1,400,000.0 | 1,900,000.0
Continuing Operations [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Depreciation and amortization |  |  | 29,100,000 | 28,600,000
Interest expense |  |  | 19,300,000 | 23,400,000
Income tax (provision) benefit |  |  | 35,400,000 | 47,600,000
Earnings Before Interest Taxes Depreciation and Amortization |  |  | 201,100,000 | 174,500,000
Stock-based compensation | $ 6,400,000 | $ 4,400,000 | 9,200,000 | 7,800,000
Pre-Opening Costs |  |  | 1,300,000 | 300,000
Other income, expense: |  |  | 0 | 0
Interest, depreciation and amortization expense related to equity investments |  |  | 8,600,000 | 6,600,000
Transaction expense, net |  |  | 3,500,000 | 500,000
Calder exit costs |  |  | $ 0 | $ 600,000

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