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INCOME TAXES (Tables)

12 Months Ended

Dec. 31, 2014

INCOME TAXES

Schedule of significant components of the entity's deferred tax assets

		December 31,
		2014			2013
		(In thousands)
Net operating loss carryforwards		$	281,300		$	271,800
Purchased technology			—			6,300
Research credits			23,400			22,700
Capitalized research and development			2,100			6,600
License fees			500			700
Other—net			7,600			10,100
​	​	​	​	​	​	​	​
Total deferred tax assets			314,900			318,200
Valuation allowance for deferred tax assets			(314,900	)		(318,200	)
​	​	​	​	​	​	​	​
Net deferred tax assets		$	—		$	—
​	​	​	​	​	​	​	​
​	​	​	​	​	​	​	​

Schedule of reconciliation of the beginning and ending amounts of unrecognized tax benefits

A reconciliation of the beginning and ending amounts of unrecognized tax benefits is as follows (in thousands):

Balance as of December 31, 2013		$	11,600
Increase related to prior year tax positions			5,100
Increase related to current year tax positions			400
Settlements			—
Reductions due to lapse of applicable statute of limitations			—
​	​	​	​	​
Balance as of December 31, 2014		$	17,100
​	​	​	​	​
​	​	​	​	​

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- Definition

Tabular disclosure of the components of net deferred tax asset or liability recognized in an entity's statement of financial position, including the following: the total of all deferred tax liabilities, the total of all deferred tax assets, the total valuation allowance recognized for deferred tax assets.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32537-109319

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Tabular disclosure of the change in unrecognized tax benefits.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 55

-Paragraph 217

-URI http://asc.fasb.org/extlink&oid=32707879&loc=d3e36027-109320



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-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 15A

-URI http://asc.fasb.org/extlink&oid=6907707&loc=SL6600010-109319

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