The price per share of the conversion feature embedded in the debt instrument.

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

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- Definition

Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

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Measure of dispersion, in percentage terms (for instance, the standard deviation or variance), for a given stock price.

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Risk-free interest rate assumption used in valuing an instrument.

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Risk associated with risk of default, credit spread risk and downgrade risk, expressed as a percentage, used as an input to measure fair value.

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

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Debt - Inputs Used In Lattice Model (Details) (USD $)	0 Months Ended		9 Months Ended
Debt - Inputs Used In Lattice Model (Details) (USD $)	Aug. 30, 2013 Rate	Jan. 31, 2013 Rate	Sep. 30, 2014 Rate	Jan. 31, 2013
Debt Instrument [Line Items]
Stock price			$ 0.36
Notes \| Notes Due February 1, 2033
Debt Instrument [Line Items]
Stock price			$ 8.51
Conversion Rate	141.48	141.48	141.4827
Conversion Price			$ 7.07	$ 7.07
Maturity date			Feb. 01, 2033
Risk-free interest rate			1.55%
Estimated stock volatility			45.00%
Estimated credit spread			8.83%