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Commitments and Contingencies (Narrative) (Details) | 12 Months Ended
--- | ---
Sep. 30, 2012 USD ($) | Sep. 30, 2012 CNY
Commitments And Contingencies 2 | 25.00% | 25.00%
Commitments And Contingencies 3 |  | 550,000,000
Commitments And Contingencies 4 | 82,200,000 |
Commitments And Contingencies 5 |  | 663,612,000
Commitments And Contingencies 6 | 105,400,000 |
Commitments And Contingencies 7 |  | 220,991,420
Commitments And Contingencies 8 | 33,000,000 |
Commitments And Contingencies 9 |  | 329,666,477
Commitments And Contingencies 10 | 51,600,000 |
Commitments And Contingencies 11 |  | 260,142,199
Commitments And Contingencies 12 | 40,900,000 |
Commitments And Contingencies 13 | 7,800,000 |
Commitments And Contingencies 14 | $ 11,200,000 |

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