Earnings Per Share - Narrative (Details) (USD $) In Thousands, except Share data in Millions, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Sep. 30, 2014
Stock Options
Earnings Per Share [Line Items]
Stock Issued During Period, Shares, Conversion of Convertible Securities	0.7
Nonvested Stock Awards
Earnings Per Share [Line Items]
Stock Issued During Period, Shares, Conversion of Convertible Securities	1.0
Tangible Equity Units
Earnings Per Share [Line Items]
Stock Issued During Period, Shares, Conversion of Convertible Securities	5.3
Tangible Equity Units outstanding	3.7
Dividend	25.00
Shares of common stock issuable upon conversion	5.3
Debt Instrument, Convertible, Stock Price Trigger, Range One \| TEU Senior Amortizing Notes
Earnings Per Share [Line Items]
Debt Instrument, Convertible, Conversion Ratio	1.72414
Debt Instrument, Convertible, Stock Price Trigger	14.50
Debt Instrument, Convertible, Stock Price Trigger, Range Two \| TEU Senior Amortizing Notes
Earnings Per Share [Line Items]
Debt Instrument, Convertible, Conversion Ratio	1.40746
Debt Instrument, Convertible, Stock Price Trigger	17.75
Senior Notes \| TEU Senior Amortizing Notes
Earnings Per Share [Line Items]
Senior notes	3,401	$ 6,703

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Equity instrument, Convertible, Number of Equity Instruments - Number of Tangible Equity instruments outstanding

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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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 260

-SubTopic 10

-Section 50

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-Publisher FASB

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-Glossary Diluted Earnings Per Share

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-Publisher FASB

-Name Accounting Standards Codification

-Glossary Contingent Stock Agreement

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- Definition

Amount of long-term debt before deduction of unamortized discount or premium. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, with initial maturities beyond one year or the normal operating cycle, if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 20

-Article 5

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- Definition

Ratio applied to the conversion of debt instrument into equity with equity shares divided by debt principal amount.

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-Publisher FASB

-Name Accounting Standards Codification

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-Glossary Conversion Rate

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- Definition

The number of equity instruments that the holder of the debt instrument would receive if the debt was converted to equity.

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Price of the entity's common stock which would be required to be attained for the conversion feature embedded in the debt instrument to become effective.

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- Definition

Price of a single share of a number of saleable stocks of a company.

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