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Commitments and Contingencies (Borgata Commitments) (Details) (Borgata, USD $)
In Millions, unless otherwise specified |
1 Months Ended | 12 Months Ended |
|---|---|---|
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Dec. 31, 2007
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Dec. 31, 2012
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| Long-term Purchase Commitment [Line Items] | ||
| Initial term of utility contract | 20 years | 50 years |
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Purchase Commitment, Thermal Energy Commitment
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| Long-term Purchase Commitment [Line Items] | ||
| Annual purchase commitments | 11.6 | |
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Long-Term Purchase Commitment, Electricity Commitment
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| Long-term Purchase Commitment [Line Items] | ||
| Annual purchase commitments | 1.7 |