v2.4.0.8

Long-Term Debt (Borgata Debt Narrative) (Details) (USD $) | 3 Months Ended | 9 Months Ended |  |  | 3 Months Ended | 9 Months Ended | 3 Months Ended |  |  | 0 Months Ended | 9 Months Ended |  | 0 Months Ended | 9 Months Ended |  | 3 Months Ended |  |
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Sep. 30, 2013 | Sep. 30, 2012 | Sep. 30, 2013 | Sep. 30, 2012 | Dec. 31, 2012 Subsidiary, Borgata Bank Credit Facility | Sep. 30, 2013 Subsidiary, Borgata Letter of Credit | Sep. 30, 2013 Parent Company | Sep. 30, 2013 Parent Company | Sep. 30, 2013 Parent Company Bank Credit Facility | Dec. 31, 2012 Parent Company Bank Credit Facility | Sep. 30, 2013 Parent Company Letter of Credit | Jul. 24, 2013 Borgata Bank Credit Facility Amendment Subsidiary, Borgata Bank Credit Facility | Sep. 30, 2013 Borgata Bank Credit Facility Amendment Subsidiary, Borgata Bank Credit Facility | Dec. 31, 2012 Borgata Bank Credit Facility Amendment Subsidiary, Borgata Bank Credit Facility | Jul. 24, 2013 Borgata Bank Credit Facility Amendment Subsidiary, Borgata Bank Credit Facility Minimum | Sep. 30, 2013 Borgata Bank Credit Facility Amendment Subsidiary, Borgata Bank Credit Facility Minimum | Sep. 30, 2013 Borgata Bank Credit Facility Amendment Subsidiary, Borgata Bank Credit Facility Maximum | Sep. 30, 2013 Revolving Credit Facility [Member] Parent Company Bank Credit Facility | Sep. 30, 2013 9.50% Senior Secured Notes Due 2015 Subsidiary, Borgata Senior Secured Notes | Sep. 30, 2013 9.50% Senior Secured Notes Due 2015 Parent Company Senior Secured Notes | Sep. 30, 2013 9.875% Senior Secured Notes Due 2018 Subsidiary, Borgata Senior Secured Notes | Jul. 24, 2013 One-month Eurodollar Borgata Bank Credit Facility Amendment Subsidiary, Borgata Bank Credit Facility
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maximum borrowing capacity |  |  |  |  |  |  |  |  |  |  |  | $ 60,000,000 |  |  |  |  |  |  |  |  |  |
Amount outstanding |  |  |  |  |  | 3,200,000 |  |  | 1,443,400,000 | 1,466,635,000 | 8,500,000 |  | 16,300,000 |  |  |  |  | 290,000,000 |  |  |  |
Interest rate at period end |  |  |  |  | 4.90% |  |  |  |  | 3.70% |  |  | 4.10% | 4.10% |  |  |  |  |  |  |  |
Remaining borrowing capacity |  |  |  |  |  |  |  |  | 293,600,000 |  |  |  | 40,500,000 |  |  |  |  |  |  |  |  |
Debt instrument, interest rate, stated percentage |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 9.50% |  | 9.875% |
Extinguishment of Debt, Amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 39,800,000 |  |
Redemption price, percentage |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 103.00% |  |
Loss on early retirements of debt | (27,141,000) | 0 | (29,513,000) | 0 |  |  | (24,605,000) | (25,001,000) | 20,800,000 |  |  |  |  |  |  |  |  |  |  | 2,000,000 |  |
Debt Instrument, Increase, Additional Borrowings |  |  |  |  |  |  |  |  |  |  |  |  | 15,000,000 |  |  |  |  |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1.00%
Long-term Debt, Percentage Bearing Variable Interest, Percentage Rate |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0.50% |  |  |  |  |  |  |
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0.50% | 0.75% |  |  |  |  |
Debt Instrument, Covenant Terms, Consolidated EBITDA Required |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 110,000,000 |  |  |  |  |  |  |
Financing Fees |  |  |  |  |  |  |  |  |  |  |  | $ 2,100,000 |  |  |  |  |  |  |  |  |  |

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- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 129 -Paragraph 2, 4 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 + Details
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