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Natural Disasters (Details) (USD $) | 12 Months Ended | 3 Months Ended |  | 0 Months Ended | 3 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | --- | --- | ---
Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2012 Gaming Operations | Dec. 31, 2011 Gaming Operations | Dec. 31, 2012 Racing Operations | Dec. 31, 2011 Racing Operations | Dec. 31, 2012 Churchill Downs Hail | Mar. 31, 2013 Churchill Downs Hail Subsequent Event | Mar. 31, 2013 Churchill Downs Hail Forecast Subsequent Event | Feb. 24, 2011 Harlows Casino hotel_rooms | Feb. 24, 2011 Harlows Casino Wind | Mar. 31, 2012 Harlows Casino Wind | Dec. 31, 2012 Harlows Casino Wind | Dec. 31, 2011 Harlows Casino Wind | Dec. 31, 2012 Harlows Casino Flood | Dec. 31, 2011 Harlows Casino Flood | May 12, 2011 Harlows Casino Flood seats
Business Interruption Loss [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number Of Seats In Entertainment Center |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2,600
Insurance Deductible |  |  |  |  |  |  | $ 500,000 |  |  |  |  |  | $ 100,000 |  | $ 1,300,000 |  |
Reduction To Property And Equipment Due To Natural Disaster |  |  |  |  |  |  | 600,000 |  |  |  | 1,400,000 |  |  |  | 8,500,000 |  |
Repair expenditures |  |  |  |  |  |  |  |  |  |  | 400,000 |  |  |  | 2,000,000 |  |
Insurance Settlements, Partial Settlement Received |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3,500,000 |
Insurance Settlements Received |  |  |  |  |  |  | 1,100,000 | 400,000 |  |  |  | 3,400,000 |  |  | 12,000,000 |  |
Unusual or Infrequent Item, Net of Insurance Proceeds | (7,006,000) | (972,000) | (6,525,000) | (397,000) | (481,000) | (575,000) | 500,000 |  | 400,000 |  |  | 1,500,000 |  |  | 5,000,000 |  |
Number Of Hotels Rooms Damaged |  |  |  |  |  |  |  |  |  | 61 |  |  |  |  |  |  |
Preliminary Claim For Damages Incurred |  |  |  |  |  |  |  |  |  |  | 1,000,000 |  |  |  |  |  |
Insurance Settlements Received, Reduction Of Selling And Administrative Expenses Related To The Interruption Of Business |  |  |  |  |  |  |  |  |  |  |  |  |  | 400,000 |  |  |
Casualty Losses | 12,975,000 | 1,028,000 | 12,331,000 | 603,000 | 644,000 | 425,000 |  |  |  |  |  |  |  |  |  |  |
Insurance Recoveries | $ (19,981,000) | $ (2,000,000) | $ (18,856,000) | $ (1,000,000) | $ (1,125,000) | $ (1,000,000) |  |  |  |  |  |  |  |  |  |  |

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