Derivative Liabilities Transferred to Stockholders' Equity

No definition available.

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- Definition

Share-based compensation net.

+ References

No definition available.

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- Definition

Fair value portion of borrowing which can be exchanged for a specified number of another security at the option of the issuer or the holder, for example, but not limited to, the entity's common stock.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Convertible Security
-URI http://asc.fasb.org/extlink&oid=6509036

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- Definition

Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities not subject to a master netting arrangement and not elected to be offset.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
-Section 55
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=51825145&loc=SL20226008-175313

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
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-URI http://asc.fasb.org/extlink&oid=49121117&loc=d3e13495-108611

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-Publisher FASB
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-Section 50
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-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 45
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41271-113958

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

The net change in the difference between the fair value and the carrying value, or in the comparative fair values, of derivative instruments, including options, swaps, futures, and forward contracts, held at each balance sheet date, that was included in earnings for the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585

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Change in Fair Value of Derivative Liabilities (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Derivatives, Fair Value [Line Items]
Beginning Balance	$ 7,519	$ 17,994
Record initial fair value of derivative liability	1,368
(Gain) loss on change in fair value of derivative liabilities	1,106	(13,472)	$ (47,710)
Transfer derivative liability to equity	(1,814)
Ending Balance	8,170	7,519	17,994
2014 Notes
Derivatives, Fair Value [Line Items]
Record initial fair value of derivative liability		3,500
Warrant
Derivatives, Fair Value [Line Items]
Compensation income for change in fair value of warrants issued to former employees	(9)	(503)	(3,703)
Warrants Issued October 2009
Derivatives, Fair Value [Line Items]
Beginning Balance	119	6,894
(Gain) loss on change in fair value of derivative liabilities	(110)	(6,272)
Ending Balance		119	6,894
Warrants Issued October 2009 \| Warrant
Derivatives, Fair Value [Line Items]
Compensation income for change in fair value of warrants issued to former employees	(9)	(503)
Embedded Derivative Financial Instruments
Derivatives, Fair Value [Line Items]
Beginning Balance	7,400	11,100
(Gain) loss on change in fair value of derivative liabilities	270	(7,200)
Ending Balance	8,170	7,400	$ 11,100
Embedded Derivative Financial Instruments \| 2014 Notes
Derivatives, Fair Value [Line Items]
Record initial fair value of derivative liability		$ 3,500
Embedded Derivative Financial Instruments \| 2015 Notes
Derivatives, Fair Value [Line Items]
Record initial fair value of derivative liability	500
Preferred Stock Purchase Option
Derivatives, Fair Value [Line Items]
Record initial fair value of derivative liability	868
(Gain) loss on change in fair value of derivative liabilities	946
Transfer derivative liability to equity	$ (1,814)