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Asset Acquisitions (Narrative) (Details) - USD ($) $ in Thousands |  | 1 Months Ended |  |  |
--- | --- | --- | --- | --- | ---
Aug. 02, 2016 | Sep. 30, 2011 | Dec. 31, 2015 | Dec. 31, 2014 | Jan. 31, 2010
Business Acquisition [Line Items] |  |  |  |  |
Equity method investment, ownership percentage |  |  | 50.00% |  |
Goodwill, net |  |  | $ 685,310 | $ 685,310 |
Other Acquisitions |  |  |  |  |
Refund from Tax Settlement | $ 160,000 |  |  |  |
Minimum |  |  |  |  |
Other Acquisitions |  |  |  |  |
Obligation to fund certain pre-development costs, annual amount |  |  | 1,000 |  |
Maximum |  |  |  |  |
Other Acquisitions |  |  |  |  |
Obligation to fund certain pre-development costs, annual amount |  |  | 2,000 |  |
Development Agreement |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Purchase price |  | $ 24,500 |  |  |
Peninsula |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Goodwill, net |  |  | $ 471,734 |  |
Parent Only [Member] |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Equity method investment, ownership percentage |  |  |  |  | 49.00%
MDDHC [Member] |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Equity method investment, ownership percentage |  |  |  |  | 1.00%
Borgata [Member] |  |  |  |  |
Other Acquisitions |  |  |  |  |
Refund from Tax Settlement | $ 140,000 |  |  |  |

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- Definition Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6578-128477 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6613-128477 + Details
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