Name:	us-gaap_DebtInstrumentLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Amount of issuance costs recognized in a share-lending arrangement entered into by the entity, in contemplation of a convertible debt offering or other financing, after deduction of accumulated amortization or the effects of subsequent adjustments.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 470

-SubTopic 20

-Section 50

-Paragraph 2A

-URI http://asc.fasb.org/extlink&oid=7656903&loc=SL6757479-112611

+ Details

Name:	us-gaap_DeferredFinanceCostsOwnshareLendingArrangementIssuanceCostsNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The number of shares issued in connection with an own-share lending arrangement entered into by the entity, in contemplation of a convertible debt offering or other financing.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 470

-SubTopic 20

-Section 50

-Paragraph 2A

-Subparagraph (b)(1)

-URI http://asc.fasb.org/extlink&oid=7656903&loc=SL6757479-112611

+ Details

Name:	us-gaap_OwnshareLendingArrangementSharesIssued
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

The number of shares outstanding as of the date of the statement of financial position in connection with an own-share lending arrangement entered into by the entity, in contemplation of a convertible debt offering or other financing.

+ References

No definition available.

+ Details

Name:	us-gaap_OwnshareLendingArrangementSharesOutstanding
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

BORROWINGS (Share Lending Agreement) (Details) (Share Lending Agreement [Member], USD $) In Millions, except Share data, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011	Sep. 30, 2011
Debt Instrument [Line Items]
Share lending agreement, share issued			36,144,570
Borrowed Shares remained outstanding	17,300,000	17,300,000
Unamortized amount of issuance costs associated with the Share Lending Agreement	$ 1.4	$ 2.3
Initially Loaned [Member]
Debt Instrument [Line Items]
Share lending agreement, share issued	32,000,000
Additional Shares [Member]
Debt Instrument [Line Items]
Share lending agreement, share issued	4,100,000