Face (par) amount of debt instrument at time of issuance.

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

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- Definition

Gross amount of debt extinguished.

+ References

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- Definition

Amount of the cost of borrowed funds accounted for as interest expense for debt.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
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- Definition

Number of shares issued during the period as a result of the conversion of convertible securities.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
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DEBT (restated) (Convertible Notes due 2015) (Narrative) (Details) - USD ($) shares in Millions	1 Months Ended	12 Months Ended
	Mar. 31, 2013	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Nov. 30, 2013	Mar. 22, 2013	Aug. 31, 2010
Common Stock [Member]
Debt Instrument [Line Items]
Conversion of convertible debt (in shares)				0.6
Convertible Debt [Member]
Debt Instrument [Line Items]
Extinguishment of debt	$ 48,500,000			$ 6,400,000
Convertible Secured Notes Due 2015 [Member]
Debt Instrument [Line Items]
Extinguishment of debt				48,500,000
Debt, face amount						$ 6,500,000	$ 55,000,000.0
Interest expense		$ 0	$ 0	$ 2,100,000
Senior Secured Notes Due 2015 [Member]
Debt Instrument [Line Items]
Debt, face amount					$ 61,100,000