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Joint Ventures and Variable Interest Entities (Details) (USD $) | 3 Months Ended |
--- | --- | ---
Dec. 31, 2012 | Dec. 31, 2011 | Sep. 30, 2012
Financial information |  |  |
Current assets | $ 3,258,532,000 |  | $ 3,147,293,000
TOTAL ASSETS | 5,808,025,000 |  | 5,664,568,000
Current liabilities | 2,233,124,000 |  | 2,078,402,000
TOTAL LIABILITIES | 3,697,899,000 |  | 3,440,080,000
Total AECOM equity | 2,049,468,000 |  | 2,169,464,000
Noncontrolling interests | 60,658,000 |  | 55,024,000
TOTAL STOCKHOLDERS' EQUITY | 2,110,126,000 |  | 2,224,488,000
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY | 5,808,025,000 |  | 5,664,568,000
AECOM's investment in joint ventures | 86,323,000 |  | 91,049,000
Joint ventures summarized financial information |  |  |
Total revenue | 2,017,272,000 | 2,029,180,000 |
Summary of AECOM's equity in earnings of unconsolidated joint ventures: |  |  |
Total | 5,915,000 | 8,962,000 |
Greater than or equal to |  |  |
Financial information |  |  |
Number of partners required to form joint ventures | 2 |  |
Consolidated joint ventures |  |  |
Financial information |  |  |
Current assets | 208,400,000 |  | 243,200,000
TOTAL ASSETS | 208,400,000 |  | 243,200,000
Current liabilities | 39,800,000 |  | 43,100,000
TOTAL LIABILITIES | 39,800,000 |  | 43,100,000
Total AECOM equity | 121,700,000 |  | 145,100,000
Noncontrolling interests | 46,900,000 |  | 55,000,000
TOTAL STOCKHOLDERS' EQUITY | 168,600,000 |  | 200,100,000
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY | 208,400,000 |  | 243,200,000
Joint ventures summarized financial information |  |  |
Total revenue | 130,700,000 | 100,200,000 |
Unconsolidated joint ventures |  |  |
Financial information |  |  |
Current assets | 587,700,000 |  | 598,800,000
Non-current assets | 16,100,000 |  | 15,200,000
TOTAL ASSETS | 603,800,000 |  | 614,000,000
Current liabilities | 416,400,000 |  | 411,200,000
Non-current liabilities | 3,200,000 |  | 2,700,000
TOTAL LIABILITIES | 419,600,000 |  | 413,900,000
TOTAL STOCKHOLDERS' EQUITY | 184,200,000 |  | 200,100,000
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY | 603,800,000 |  | 614,000,000
AECOM's investment in joint ventures | 86,300,000 |  | 91,000,000
Joint ventures summarized financial information |  |  |
Total revenue | 527,500,000 | 523,700,000 |
Summary of AECOM's equity in earnings of unconsolidated joint ventures: |  |  |
Pass through joint ventures | 1,500,000 | 900,000 |
Other joint ventures | 4,400,000 | 8,100,000 |
Total | $ 5,900,000 | $ 9,000,000 |

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- Definition Represents the entity's proportionate share for the period of the net income (loss) of its other joint ventures to which the equity method of accounting is applied. Other joint ventures are those which have their own employees and operating expenses, and to which the entity generally makes a capital contribution. + References No definition available. + Details
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- Definition Represents the entity's proportionate share for the period of the net income (loss) of its pass through joint ventures to which the equity method of accounting is applied. Pass through joint ventures are those in which the entities' own employees perform work for the joint venture, which is then billed to a third-party customer by the joint venture. + References No definition available. + Details
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