FAIR VALUE DISCLOSURES - TEXTUAL (Details) (Convertible Debt, USD $)	Sep. 30, 2013	Dec. 31, 2012
Convertible Debt
Derivative [Line Items]
Convertible notes fair value	$ 100,000	$ 68,800,000
Derivative, Convertible Notes Embedded Derivative Fair Value Disclosure	$ 0	$ 17,200,000

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.

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

Name:	us-gaap_ConvertibleDebtFairValueDisclosures
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant