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CASH, CASH EQUIVALENTS AND INVESTMENTS (Details 9) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
CASH, CASH EQUIVALENTS AND INVESTMENTS
Combined fair value of the long term investments in available-for-sale securities	$ 53,971
Long-term investments	74,588	62,443
Roll-forward of financial assets using unobservable inputs (Level 3)
Less: Impairment Charge	(9,400)	(3,043)	(476)
Convertible Bond
CASH, CASH EQUIVALENTS AND INVESTMENTS
Combined fair value of the long term investments in available-for-sale securities	45,971
Preferred Shares
CASH, CASH EQUIVALENTS AND INVESTMENTS
Combined fair value of the long term investments in available-for-sale securities	8,000
Recurring
CASH, CASH EQUIVALENTS AND INVESTMENTS
Short-term investment		296
Long-term investments	53,971	31,000
Nonrecurring | Equity securities | Privately-held companies
Roll-forward of financial assets using unobservable inputs (Level 3)
Investments in financial assets	20,600	31,400
Level 1 | Recurring
CASH, CASH EQUIVALENTS AND INVESTMENTS
Short-term investment		296
Level 3
CASH, CASH EQUIVALENTS AND INVESTMENTS
Combined fair value of the long term investments in available-for-sale securities	54,000
Roll-forward of financial assets using unobservable inputs (Level 3)
Investments in financial assets	31,000
Less: Impairment Charge	(9,142)
Investments in financial assets	53,971
Level 3 | Convertible Bond
Roll-forward of financial assets using unobservable inputs (Level 3)
Investments in financial assets	32,113	23,000
Level 3 | Preferred Shares
Roll-forward of financial assets using unobservable inputs (Level 3)
Investments in financial assets		8,000
Level 3 | Recurring
CASH, CASH EQUIVALENTS AND INVESTMENTS
Long-term investments	$ 53,971	$ 31,000
Minimum
CASH, CASH EQUIVALENTS AND INVESTMENTS
Maturity period of bank notes receivable	3 months
Maximum
CASH, CASH EQUIVALENTS AND INVESTMENTS
Maturity period of bank notes receivable	1 year

X

- Definition

Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 25

-Paragraph 1

-Subparagraph (b)

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-Publisher FASB

-Name Accounting Standards Codification

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- Definition

The amount by which the fair value of an investment is less than the amortized cost basis or carrying amount of that investment at the balance sheet date and the decline in fair value is deemed to be other than temporary, before considering whether or not such amount is recognized in earnings or other comprehensive income.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

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-Paragraph 28

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- Definition

Fair value portion of investment securities, including, but not limited to, marketable securities, derivative financial instruments, and investments accounted for under the equity method.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

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-URI http://asc.fasb.org/extlink&oid=6505594



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-Publisher FASB

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-URI http://asc.fasb.org/extlink&oid=6526789



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The total amount of investments that are intended to be held for an extended period of time (longer than one operating cycle).

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

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-Section S99

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Fair value portion of an agreement for an unconditional promise by the maker to pay the holder a definite sum of money at a future date.

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-Publisher FASB

-Name Accounting Standards Codification

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Maturity period of bank notes receivable.

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No definition available.

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