Segment Information - Information About Reported Segments (Details) (USD $) | 3 Months Ended | 6 Months Ended |
In Thousands, unless otherwise specified | Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2013 |
| Segments |
Segment Reporting Information [Line Items] | ' | ' | ' | ' |
Income (Loss) from Equity Method Investments | $2,506 | ($631) | $4,796 | ($795) |
Number of Operating Segments | 4 | ' | ' | ' |
Net revenues from external customers | 303,651 | 283,594 | 470,961 | 431,470 |
Intercompany net revenues | 0 | 0 | 0 | 0 |
Adjusted Segment EBITDA | 117,667 | 104,893 | 143,265 | 127,207 |
Adjusted Corporate EBITDA | -1,141 | -988 | -2,247 | -2,165 |
Insurance Recoveries, Net of Losses | 0 | 0 | 431 | 375 |
Illinois HRE Trust Fund Proceeds | 0 | 292 | 0 | 292 |
Allocated Share-based Compensation Expense | -3,113 | -6,214 | -8,354 | -9,577 |
Pre-Opening Costs | 0 | -481 | -27 | -711 |
MVG interest expense, net | -597 | 0 | -1,137 | 0 |
Depreciation and Amortization | -15,760 | -14,991 | -31,044 | -30,026 |
Interest Income (Expense), Net | -4,956 | -1,167 | -9,925 | -2,633 |
Income tax provision | -34,767 | -31,035 | -34,329 | -31,364 |
Earnings from continuing operations | 57,333 | 50,309 | 56,633 | 51,398 |
Discontinued operations, net of income taxes | 0 | -11 | 0 | -42 |
Net earnings and comprehensive income | 57,333 | 50,298 | 56,633 | 51,356 |
Arlington Park | ' | ' | ' | ' |
Segment Reporting Information [Line Items] | ' | ' | ' | ' |
Number Of Off Track Betting Palors | 11 | ' | ' | ' |
Fair Grounds | ' | ' | ' | ' |
Segment Reporting Information [Line Items] | ' | ' | ' | ' |
Number Of Off Track Betting Palors | 12 | ' | ' | ' |
Racing Operations Segment [Member] | ' | ' | ' | ' |
Segment Reporting Information [Line Items] | ' | ' | ' | ' |
Net revenues from external customers | 159,435 | 157,387 | 190,014 | 185,200 |
Intercompany net revenues | 7,070 | 6,002 | 9,403 | 7,174 |
Adjusted Segment EBITDA | 78,079 | 70,517 | 67,829 | 59,260 |
Racing Operations Segment [Member] | Churchill Downs | ' | ' | ' | ' |
Segment Reporting Information [Line Items] | ' | ' | ' | ' |
Net revenues from external customers | 118,348 | 108,278 | 120,490 | 110,578 |
Intercompany net revenues | 4,945 | 4,607 | 5,173 | 4,796 |
Racing Operations Segment [Member] | Arlington Park | ' | ' | ' | ' |
Segment Reporting Information [Line Items] | ' | ' | ' | ' |
Net revenues from external customers | 21,193 | 22,006 | 27,315 | 29,247 |
Intercompany net revenues | 1,777 | 903 | 2,794 | 1,040 |
Racing Operations Segment [Member] | Calder | ' | ' | ' | ' |
Segment Reporting Information [Line Items] | ' | ' | ' | ' |
Net revenues from external customers | 9,714 | 17,031 | 17,738 | 19,311 |
Intercompany net revenues | 351 | 492 | 707 | 505 |
Racing Operations Segment [Member] | Fair Grounds | ' | ' | ' | ' |
Segment Reporting Information [Line Items] | ' | ' | ' | ' |
Net revenues from external customers | 10,180 | 10,072 | 24,471 | 26,064 |
Intercompany net revenues | -3 | 0 | 729 | 833 |
Gaming Segment [Member] | ' | ' | ' | ' |
Segment Reporting Information [Line Items] | ' | ' | ' | ' |
Income (Loss) from Equity Method Investments | 2,796 | -495 | 4,837 | -793 |
Net revenues from external customers | 81,958 | 66,887 | 168,513 | 138,976 |
Adjusted Segment EBITDA | 26,174 | 19,365 | 53,425 | 41,292 |
Gaming Segment [Member] | Calder Casinos | ' | ' | ' | ' |
Segment Reporting Information [Line Items] | ' | ' | ' | ' |
Net revenues from external customers | 19,873 | 20,466 | 40,456 | 40,952 |
Gaming Segment [Member] | Fair Grounds Slots | ' | ' | ' | ' |
Segment Reporting Information [Line Items] | ' | ' | ' | ' |
Net revenues from external customers | 9,586 | 9,978 | 21,370 | 22,342 |
Gaming Segment [Member] | VSI | ' | ' | ' | ' |
Segment Reporting Information [Line Items] | ' | ' | ' | ' |
Net revenues from external customers | 8,658 | 9,245 | 17,581 | 19,006 |
Gaming Segment [Member] | Harlows Casino | ' | ' | ' | ' |
Segment Reporting Information [Line Items] | ' | ' | ' | ' |
Net revenues from external customers | 11,777 | 13,097 | 26,228 | 28,451 |
Gaming Segment [Member] | Oxford Acquisition [Member] | ' | ' | ' | ' |
Segment Reporting Information [Line Items] | ' | ' | ' | ' |
Net revenues from external customers | 19,402 | 0 | 36,921 | 0 |
Gaming Segment [Member] | Riverwalk Casino | ' | ' | ' | ' |
Segment Reporting Information [Line Items] | ' | ' | ' | ' |
Net revenues from external customers | 12,662 | 14,101 | 25,957 | 28,225 |
Online Operations | ' | ' | ' | ' |
Segment Reporting Information [Line Items] | ' | ' | ' | ' |
Income (Loss) from Equity Method Investments | 28 | -239 | 248 | -130 |
Net revenues from external customers | 57,076 | 52,531 | 103,160 | 95,447 |
Intercompany net revenues | 244 | 233 | 474 | 446 |
Adjusted Segment EBITDA | 14,087 | 14,091 | 24,037 | 25,426 |
Intersegment Elimination | ' | ' | ' | ' |
Segment Reporting Information [Line Items] | ' | ' | ' | ' |
Intercompany net revenues | -8,524 | -7,583 | -11,985 | -9,870 |
Other Investments Segment [Member] | ' | ' | ' | ' |
Segment Reporting Information [Line Items] | ' | ' | ' | ' |
Income (Loss) from Equity Method Investments | -318 | 103 | -289 | 128 |
Net revenues from external customers | 4,778 | 6,371 | 8,615 | 11,273 |
Intercompany net revenues | 1,210 | 1,348 | 2,108 | 2,250 |
Adjusted Segment EBITDA | -673 | 920 | -2,026 | 1,229 |
Corporate | ' | ' | ' | ' |
Segment Reporting Information [Line Items] | ' | ' | ' | ' |
Net revenues from external customers | $404 | $418 | $659 | $574 |