Equity (Schedule of Earnings per Share) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
Dec. 31, 2014	Dec. 31, 2013
Numerator
Loss from continuing operations	$ (3,130)	$ (3,823)
Income from discontinued operations	59,258	1,769
Net income (loss)	56,128us-gaap_NetIncomeLoss	(2,054)us-gaap_NetIncomeLoss
Undistributed earnings allocated to common shareholders for basic net income (loss) per share	56,128	(2,054)
Undistributed earnings allocated to common shareholders for diluted net income (loss) per share	$ 56,128	$ (2,054)
Denominator:
Denominator for basic net income (loss) per share - weighted average shares outstanding	31,217	29,938
Dilutive options outstanding, unvested stock units and ESPP	0	0
Denominator for diluted net income (loss) per share - adjusted weighted average shares outstanding	31,217	29,938
Net income (loss) per basic and diluted shares:
Net income (loss) per basic and diluted shares, continuing operations (USD per share)	$ (0.10)	$ (0.13)
Net income (loss) per basic and diluted shares, discontinued operations (USD per share)	$ 1.90	$ 0.06
Net income (loss) per basic share and diluted share (USD per share)	$ 1.80us-gaap_EarningsPerShareBasicAndDiluted	$ (0.07)us-gaap_EarningsPerShareBasicAndDiluted
Weighted average antidilutive options, unvested restricted stock units and awards, warrants and ESPP shares excluded from the computation	2,649	3,049
Average market price of common stock (in dollars per share)	$ 5.29	$ 5.04

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Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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Per basic and diluted share amount, after tax, of the gain (loss) on the disposal of discontinued operations, when the per share amount is the same.

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The amount of net income or loss for the period per each share in instances when basic and diluted earnings per share are the same amount and reported as a single line item on the face of the financial statements. Basic earnings per share is the amount of net income or loss for the period per each share of common stock or unit outstanding during the reporting period. Diluted earnings per share includes the amount of net income or loss for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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This element represents the income or loss from continuing operations attributable to the economic entity which may also be defined as revenue less expenses and taxes from ongoing operations before extraordinary items, and noncontrolling interest.

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The amount of net income (loss) from continuing operations per each basic and diluted share of common stock or unit when the per share amount is the same for both basic and diluted shares.

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Amount of income (loss) from a disposal group, net of income tax before extraordinary items allocable to noncontrolling interests. Includes, net of tax, income (loss) from operations during the phase-out period, gain (loss) on disposal, provision (or any reversals of earlier provisions) for loss on disposal, and adjustments of a prior period gain (loss) on disposal.

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Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of share based payment arrangements using the treasury stock method.

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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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Net income after adjustments for dividends on preferred stock (declared in the period) and/or cumulative preferred stock (accumulated for the period).

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Net Income or Loss Available to Common Stockholders plus adjustments resulting from the assumption that dilutive convertible securities were converted, options or warrants were exercised, or that other shares were issued upon the satisfaction of certain conditions.

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The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.

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