BORROWINGS (Long-term Debt) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
Debt Instrument [Line Items]
Long-term debt, less current portion	$ 90,204	$ 723,888
Less: current portion	651,909
Carrying Value [Member]
Debt Instrument [Line Items]
Long-term debt, less current portion	90,204	723,888
Total debt	742,113	723,888
Less: current portion	651,909
Carrying Value [Member] \| Facility Agreement [Member]
Debt Instrument [Line Items]
Long term debt	583,303	578,295
Carrying Value [Member] \| Subordinated Loan [Member]
Debt Instrument [Line Items]
Long term debt	48,099	43,255
Carrying Value [Member] \| 5.00% Convertible Senior Unsecured Notes [Member]
Debt Instrument [Line Items]
Long term debt	15,268	13,077
Carrying Value [Member] \| 8.00% Convertible Senior Unsecured Notes [Member]
Debt Instrument [Line Items]
Long term debt	26,837	25,203
Carrying Value [Member] \| 5.75% Convertible Senior Unsecured Notes [Member]
Debt Instrument [Line Items]
Long term debt	68,606	64,058
Principal Amount [Member]
Debt Instrument [Line Items]
Debt	793,766	783,948
Less: current portion	655,107
Long term debt	138,659	783,948
Principal Amount [Member] \| Facility Agreement [Member]
Debt Instrument [Line Items]
Debt	583,303	578,295
Principal Amount [Member] \| Subordinated Loan [Member]
Debt Instrument [Line Items]
Debt	51,891	47,384
Principal Amount [Member] \| 5.00% Convertible Senior Unsecured Notes [Member]
Debt Instrument [Line Items]
Debt	39,922	38,949
Principal Amount [Member] \| 8.00% Convertible Senior Unsecured Notes [Member]
Debt Instrument [Line Items]
Debt	46,846	47,516
Principal Amount [Member] \| 5.75% Convertible Senior Unsecured Notes [Member]
Debt Instrument [Line Items]
Debt	$ 71,804	$ 71,804

Debt Instrument Face Amount Current

No definition available.

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- Definition

Debt Instruments Face Amount Noncurrent

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
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- Definition

Including the current and noncurrent portions, carrying amount of debt identified as being convertible into another form of financial instrument (typically the entity's common stock) as of the balance sheet date, which originally required full repayment more than twelve months after issuance or greater than the normal operating cycle of the company.

+ References

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19, 20, 22

-Article 5

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.16)

-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 16

-Article 9

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-Publisher FASB

-Name Accounting Standards Codification

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-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

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- Definition

The stated principal amount of the debt instrument at time of issuance, which may vary from the carrying amount because of unamortized premium or discount.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 45

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 55

-Paragraph 8

-URI http://asc.fasb.org/extlink&oid=6584090&loc=d3e28878-108400

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher AICPA

-Name Accounting Principles Board Opinion (APB)

-Number 21

-Paragraph 16, 20

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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- Definition

Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.16)

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

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-Publisher SEC

-Name Regulation S-X (SX)

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Reference 4: http://www.xbrl.org/2003/role/presentationRef

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-Number 210

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-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

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-Paragraph 1

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-Name Accounting Standards Codification

-Topic 944

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-Paragraph 1

-Subparagraph (SX 210.7-03.16)

-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

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- Definition

Carrying amount of long-term debt, net of unamortized discount or premium, scheduled to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.19,20)

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-Name Regulation S-X (SX)

-Number 210

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-Publisher SEC

-Name Regulation S-X (SX)

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- Definition

Carrying amount of long-term debt, net of unamortized discount or premium, excluding amounts to be repaid within one year or the normal operating cycle, if longer (current maturities). Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5

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