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Summary of Significant Accounting Policies (Property, Plant and Equipment Useful Lives) (Details)
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12 Months Ended |
|---|---|
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Dec. 31, 2012
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Building and Improvements | Minimum
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| Property, Plant and Equipment [Line Items] | |
| Property and equipment, estimated useful lives | 10 years |
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Building and Improvements | Maximum
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|
| Property, Plant and Equipment [Line Items] | |
| Property and equipment, estimated useful lives | 40 years |
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Riverboats and Barges | Minimum
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|
| Property, Plant and Equipment [Line Items] | |
| Property and equipment, estimated useful lives | 10 years |
|
Riverboats and Barges | Maximum
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|
| Property, Plant and Equipment [Line Items] | |
| Property and equipment, estimated useful lives | 40 years |
|
Furniture and Equipment | Minimum
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|
| Property, Plant and Equipment [Line Items] | |
| Property and equipment, estimated useful lives | 3 years |
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Furniture and Equipment | Maximum
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|
| Property, Plant and Equipment [Line Items] | |
| Property and equipment, estimated useful lives | 10 years |