Equity Method Investments	12 Months Ended
Equity Method Investments	Dec. 31, 2011
Equity Method Investments and Joint Ventures [Abstract]
Equity Method Investments	Equity Method Investments We apply equity method accounting for investments in the stock of corporations when we do not control the investee, but have the ability to exercise significant influence over its operating and finance policies. Equity method investments are recorded at cost, with the allocable portion of the investee's income or loss reported in earnings, and adjusted for capital contributions to and distributions from the investee. Distributions in excess of equity method earnings, if any, are recognized as a return of investment and recorded as investing cash flows in the Consolidated Statement of Cash Flows. During the year ended December 31, 2011, we invested $95.0 million in Asian Coast Development, Ltd. ("ACDL"), in exchange for a 26% ownership interest, which will be accounted for under the equity method. Because the financial statements of ACDL are not available in time to incorporate with our financial statements in the applicable time period, we record our allocable share of income or loss on a one quarter lag. During the year ended December 31, 2011, our proportional share of ACDL's losses totaled $0.6 million. As such, summarized financial information of ACDL is not contained within these Consolidated Financial Statements. Our purchase price of $95.0 million exceeds the underlying equity in the net book assets of ACDL, as the fair value of the gaming license and the potential future growth of ACDL exceeds their current book value. The portion of this difference attributable to the fair value of the gaming license will be amortized over the term of the gaming license, or 50 years, which amortization will be included in our determination of income or loss from equity method investments. The portion of this difference attributable to equity method goodwill will not be amortized. We review our investment for impairment whenever events or changes in circumstances indicate that the carrying value of our investment may have experienced an "other-than-temporary" decline in value. If such conditions exist, we would compare the estimated fair value of the investment to its carrying value to determine if an impairment is indicated. In addition, we would determine if the impairment is "other-than-temporary" based on our assessment of all relevant factors, including consideration of our intent and ability to retain the investment. To estimate fair value, we would use a discounted cash flow analysis based on estimated future results of the investee and market indicators of terminal year capitalization rates. ACDL is the owner and developer of the Ho Tram Strip beachfront complex of destination integrated resorts and residential developments in southern Vietnam. The first phase of the Ho Tram Strip, MGM Grand Ho Tram, is currently under construction with a planned opening in 2013. The second integrated resort of the Ho Tram Strip, for which we secured a management agreement in conjunction with our investment, will be jointly developed by Pinnacle and ACDL, and owned by ACDL. We expect the second integrated resort will be similar in project scope to the MGM Grand Ho Tram resort currently under construction. We have capitalized interest on our investment in ACDL, as ACDL has not begun its principal operations. ACDL currently has activities in progress to commence these planned operations, and is using all funds to acquire assets for the future operations. Once ACDL opens the first phase of this operation, the investment will no longer qualify for capitalization of interest. Capitalized interest on this investment was $3.4 million for the year ended December 31, 2011.

The entire disclosure for equity investment, or group of investments, for which combined disclosure is appropriate, including: (a) the name of each investee and percentage of ownership of common stock, (b) accounting policies for investments in common stock, (c) difference between the amount at which the investment is carried and the amount of underlying equity in net assets and the accounting treatment of the difference, (d) the total fair value of each identified investment for which a market value is available, (e) summarized information as to assets, liabilities, and results of operations of the investees (for investments in unconsolidated subsidiaries, common stock of joint ventures, or other investments using the equity method), and (f) material effects of possible conversions, exercises, or contingent issuances of the investee. Other disclosures include (a) the names of any investee in which the investor owns 20 percent or more of the voting stock and investment is not accounted for using the equity method, and the reasons why not, and (b) the names of any investee in which the investor owns less than 20 percent of the voting stock and the investment is accounted for using the equity method, and the reasons why it is.

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