Schedule of Estimated Fair Value Assumption of Term Loan and 2017 Notes (Detail) (Convertible 2017 Notes, USD $)	9 Months Ended
Sep. 30, 2014
Debt Instrument [Line Items]
Conversion Rate	0.8663
Term Loans
Debt Instrument [Line Items]
Stock price	$ 0.34
Conversion Rate	863.3
Conversion Price	$ 1.16
Maturity date	Mar. 15, 2017
Risk-free interest rate	0.80%
Estimated stock volatility	85.00%
Estimated credit spread	15.00%

Conversion price.

No definition available.

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- Definition

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

+ References

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- Definition

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

+ References

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

-Publisher SEC

-Name Regulation S-X (SX)

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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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