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Earnings Per Share (Tables) | 12 Months Ended
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Sep. 30, 2012
Summary of Basic and Diluted EPS | The following table sets forth the computation of basic and diluted EPS:
|  | September 30, |
|  | 2012 |  |  | 2011 |  |  | 2010 |
Income (loss) attributable to common and participating preferred stockholders: |  |  |  |  |  |  |  |  |  |  |  |
Income (loss) from continuing operations |  | $ | 29,915 |  |  | $ | 22,226 |  |  | $ | (149,134 | )
Loss from discontinued operations |  |  | — |  |  |  | — |  |  |  | (2,735 | )
Net income (loss) |  | $ | 29,915 |  |  | $ | 22,226 |  |  | $ | (151,869 | )
Participating shares at end of period: |  |  |  |  |  |  |  |  |  |  |  |
Common stock outstanding |  |  | 139,357 |  |  |  | 139,346 |  |  |  | 139,197 |
Preferred stock (as-converted basis) |  |  | 62,839 |  |  |  | 60,989 |  |  |  | — |
Total |  |  | 202,196 |  |  |  | 200,335 |  |  |  | 139,197 |
Percentage of income (loss) allocated to: |  |  |  |  |  |  |  |  |  |  |  |
Common stock |  |  | 68.9 | % |  |  | 69.6 | % |  |  | 100 | %
Preferred stock |  |  | 31.1 | % |  |  | 30.4 | % |  |  | — |
Income (loss) attributable to common shares — basic: |  |  |  |  |  |  |  |  |  |  |  |
Income (loss) from continuing operations |  | $ | 20,618 |  |  | $ | 15,460 |  |  | $ | (149,134 | )
Loss from discontinued operations |  |  | — |  |  |  | — |  |  |  | (2,735 | )
Net income (loss) |  | $ | 20,618 |  |  | $ | 15,460 |  |  | $ | (151,869 | )
Dilutive adjustments to income (loss) attributable to common stock from assumed conversion of preferred stock, net of tax: |  |  |  |  |  |  |  |  |  |  |  |
Income allocated to preferred stock in basic calculation |  | $ | — |  |  | $ | 6,766 |  |  | $ | — |
Reversal of preferred stock dividends and accretion |  |  | — |  |  |  | 19,833 |  |  |  | — |
Reversal of income related to fair value of preferred stock conversion feature |  |  | — |  |  |  | (27,910 | ) |  |  | — |
Net adjustment |  | $ | — |  |  | $ | (1,311 | ) |  | $ | — |
Income (loss) attributable to common shares — diluted: |  |  |  |  |  |  |  |  |  |  |  |
Income (loss) from continuing operations |  | $ | 20,618 |  |  | $ | 14,149 |  |  | $ | (149,134 | )
Loss from discontinued operations |  |  | — |  |  |  | — |  |  |  | (2,735 | )
Net income (loss) |  | $ | 20,618 |  |  | $ | 14,149 |  |  | $ | (151,869 | )
Weighted-average common shares outstanding — basic |  |  | 139,356 |  |  |  | 139,233 |  |  |  | 132,399 |
Dilutive effect of preferred stock |  |  | — |  |  |  | 19,064 |  |  |  | — |
Dilutive effect of stock options |  |  | 81 |  |  |  | 87 |  |  |  | — |
Dilutive effect of restricted stock and restricted stock units |  |  | 381 |  |  |  | — |  |  |  | — |
Weighted-average shares outstanding — diluted |  |  | 139,818 |  |  |  | 158,384 |  |  |  | 132,399 |
Basic income (loss) per common share attributable to controlling interest: |  |  |  |  |  |  |  |  |  |  |  |
Continuing operations |  | $ | 0.15 |  |  | $ | 0.11 |  |  | $ | (1.13 | )
Discontinued operations |  |  | — |  |  |  | — |  |  |  | (0.02 | )
Net income (loss) |  | $ | 0.15 |  |  | $ | 0.11 |  |  | $ | (1.15 | )
Diluted income (loss) per common share attributable to controlling interest: |  |  |  |  |  |  |  |  |  |  |  |
Continuing operations |  | $ | 0.15 |  |  | $ | 0.09 |  |  | $ | (1.13 | )
Discontinued operations |  |  | — |  |  |  | — |  |  |  | (0.02 | )
Net income (loss) |  | $ | 0.15 |  |  | $ | 0.09 |  |  | $ | (1.15 | )

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
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Period Type: | duration