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Joint Ventures and Variable Interest Entities (Details) $ in Thousands | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Sep. 30, 2014 USD ($) item | Jun. 30, 2014 USD ($) | Mar. 31, 2014 USD ($) | Dec. 31, 2013 USD ($) | Sep. 30, 2013 USD ($) | Jun. 30, 2013 USD ($) | Mar. 31, 2013 USD ($) | Dec. 31, 2012 USD ($) | Sep. 30, 2014 USD ($) item | Sep. 30, 2013 USD ($) | Sep. 30, 2012 USD ($) | Sep. 30, 2011 USD ($)
Financial information |  |  |  |  |  |  |  |  |  |  |  |
Number of employees in some joint ventures | item | 0 |  |  |  |  |  |  |  | 0 |  |  |
Current assets | $ 3,434,113 |  |  |  | $ 3,131,602 |  |  |  | $ 3,434,113 | $ 3,131,602 |  |
TOTAL ASSETS | 6,123,377 |  |  |  | 5,665,623 |  |  |  | 6,123,377 | 5,665,623 |  |
Current liabilities | 2,455,769 |  |  |  | 2,053,549 |  |  |  | 2,455,769 | 2,053,549 |  |
TOTAL LIABILITIES | 3,850,897 |  |  |  | 3,591,529 |  |  |  | 3,850,897 | 3,591,529 |  |
Total AECOM equity | 2,186,517 |  |  |  | 2,021,443 |  |  |  | 2,186,517 | 2,021,443 |  |
Noncontrolling interests | 85,963 |  |  |  | 52,651 |  |  |  | 85,963 | 52,651 |  |
TOTAL STOCKHOLDERS' EQUITY | 2,272,480 |  |  |  | 2,074,094 |  |  |  | 2,272,480 | 2,074,094 | $ 2,224,488 | $ 2,395,137
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY | 6,123,377 |  |  |  | 5,665,623 |  |  |  | 6,123,377 | 5,665,623 |  |
AECOM's investment in joint ventures | 142,901 |  |  |  | 106,422 |  |  |  | 142,901 | 106,422 |  |
Gross Profit | 129,100 | $ 108,500 | $ 87,400 | $ 78,200 | 140,200 | $ 131,800 | $ 99,900 | $ 78,100 | 403,176 | 449,988 | 421,859 |
Joint ventures summarized financial information |  |  |  |  |  |  |  |  |  |  |  |
Revenue | 2,562,500 | 1,968,200 | 1,872,200 | 1,953,900 | 2,079,100 | 2,067,500 | 1,989,600 | 2,017,300 | 8,356,783 | 8,153,495 | 8,218,180 |
Cost of revenue. | 2,433,400 | 1,859,700 | 1,784,800 | 1,875,700 | 1,938,900 | 1,935,700 | 1,889,700 | 1,939,200 | 7,953,607 | 7,703,507 | 7,796,321 |
Gross Profit | 129,100 | 108,500 | 87,400 | 78,200 | 140,200 | 131,800 | 99,900 | 78,100 | 403,176 | 449,988 | 421,859 |
Net income (loss) | 64,700 | 69,100 | 42,500 | 56,500 | 78,200 | 71,300 | 54,700 | 39,000 | 232,764 | 243,196 | (56,933) |
Summary of AECOM's equity in earnings of unconsolidated joint ventures: |  |  |  |  |  |  |  |  |  |  |  |
Total | $ 8,400 | $ 6,000 | $ 7,400 | $ 36,100 | 6,400 | $ 4,100 | $ 7,900 | $ 5,900 | $ 57,924 | 24,319 | 48,650 |
Minimum |  |  |  |  |  |  |  |  |  |  |  |
Financial information |  |  |  |  |  |  |  |  |  |  |  |
Number of partners required to form joint ventures | item | 2 |  |  |  |  |  |  |  | 2 |  |  |
Consolidated Joint Ventures |  |  |  |  |  |  |  |  |  |  |  |
Financial information |  |  |  |  |  |  |  |  |  |  |  |
Current assets | $ 314,100 |  |  |  | 185,700 |  |  |  | $ 314,100 | 185,700 |  |
Non-current assets | 106,200 |  |  |  |  |  |  |  | 106,200 |  |  |
TOTAL ASSETS | 420,300 |  |  |  | 185,700 |  |  |  | 420,300 | 185,700 |  |
Current liabilities | 229,100 |  |  |  | 38,900 |  |  |  | 229,100 | 38,900 |  |
TOTAL LIABILITIES | 229,100 |  |  |  | 38,900 |  |  |  | 229,100 | 38,900 |  |
Total AECOM equity | 116,600 |  |  |  | 106,800 |  |  |  | 116,600 | 106,800 |  |
Noncontrolling interests | 74,600 |  |  |  | 40,000 |  |  |  | 74,600 | 40,000 |  |
TOTAL STOCKHOLDERS' EQUITY | 191,200 |  |  |  | 146,800 |  |  |  | 191,200 | 146,800 |  |
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY | 420,300 |  |  |  | 185,700 |  |  |  | 420,300 | 185,700 |  |
Joint ventures summarized financial information |  |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  | 614,500 | 490,900 | 468,600 |
Unconsolidated Joint Ventures |  |  |  |  |  |  |  |  |  |  |  |
Financial information |  |  |  |  |  |  |  |  |  |  |  |
Current assets | 539,600 |  |  |  | 525,500 |  |  |  | 539,600 | 525,500 |  |
Non-current assets | 273,700 |  |  |  | 98,700 |  |  |  | 273,700 | 98,700 |  |
TOTAL ASSETS | 813,300 |  |  |  | 624,200 |  |  |  | 813,300 | 624,200 |  |
Current liabilities | 397,900 |  |  |  | 384,100 |  |  |  | 397,900 | 384,100 |  |
Non-current liabilities | 91,000 |  |  |  | 17,500 |  |  |  | 91,000 | 17,500 |  |
TOTAL LIABILITIES | 488,900 |  |  |  | 401,600 |  |  |  | 488,900 | 401,600 |  |
TOTAL STOCKHOLDERS' EQUITY | 324,400 |  |  |  | 222,600 |  |  |  | 324,400 | 222,600 |  |
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY | 813,300 |  |  |  | 624,200 |  |  |  | 813,300 | 624,200 |  |
AECOM's investment in joint ventures | 142,900 |  |  |  | $ 106,400 |  |  |  | 142,900 | 106,400 |  |
Joint ventures summarized financial information |  |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  | 2,000,000 | 2,100,000 | 2,000,000 |
Summary of AECOM's equity in earnings of unconsolidated joint ventures: |  |  |  |  |  |  |  |  |  |  |  |
Pass through joint ventures |  |  |  |  |  |  |  |  | 10,200 | 6,400 | 5,200 |
Other joint ventures |  |  |  |  |  |  |  |  | 47,700 | 17,900 | 43,400 |
Total |  |  |  |  |  |  |  |  | 57,900 | $ 24,300 | $ 48,600 |
Consolidated joint venture during the year ended 09/30/2014 |  |  |  |  |  |  |  |  |  |  |  |
Financial information |  |  |  |  |  |  |  |  |  |  |  |
TOTAL ASSETS | 207,800 |  |  |  |  |  |  |  | 207,800 |  |  |
TOTAL LIABILITIES | 48,100 |  |  |  |  |  |  |  | 48,100 |  |  |
Equity in earnings of unconsolidated joint ventures |  |  |  |  |  |  |  |  |  |  |  |
Gain (loss) from equity in earnings of joint ventures due to the change in control |  |  |  |  |  |  |  |  | 37,400 |  |  |
Gain (loss) from equity in earnings of joint ventures due to the change in control, net of tax |  |  |  |  |  |  |  |  | 23,400 |  |  |
Fair value of the previously held equity interest, excluding control premium | $ 58,000 |  |  |  |  |  |  |  | $ 58,000 |  |  |

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