STOCKHOLDERS’ EQUITY Activity under the entity's 2005 Stock Plan (Details) (USD $)	3 Months Ended	12 Months Ended
Mar. 31, 2015	Dec. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share available for grant after ratio adjustment	8,800,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Options exercised, Number of Options
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number	2,859,000
Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Beginning Balance, Number of Options	3,059,000
Beginning Balance, Weighted Average Exercise Price per Share	4.57
Options cancelled/expired/forfeited, Number of Options	(2,000)
Options cancelled/expired/forfeited, Weighted Average Exercise Price per Share	3.26
Options exercised, Number of Options	(198,000)
Options exercised, Weighted Average Exercise Price	3.51
Ending Balance, Number of Options	2,859,000
Ending Balance, Weighted Average Exercise Price per Share
Restricted Stock Units R S U Non Performance Based [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Restricted stock units issued	(479,000)
Plan adjustment for restricted stock units issued	(273,000)
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Beginning Balance, Available for Grant	13,611,000
Plan adjustment for restricted stock units issued	(210,000)
Stock units cancelled in the period (in shares)	363,000
Ending Balance, Available for Grant	13,831,000
Performance-based Restricted Stock Unites (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Stock units cancelled in the period (in shares)	253,000
Performance-based Restricted Stock Units (RSUs) Cancelled [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Plan adjustment for restricted stock units issued	(144,000)
Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Plan adjustment for restricted stock units issued	(2,000)
Range of Exercise Price $2.13-$10.01 \| Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Ending Balance, Exercise Price per Share, Minimum		$ 2,130.00
Ending Balance, Exercise Price per Share, Maximum		$ 10,010.00
Range of Exercise Price $3.26-$6.28 \| Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Ending Balance, Exercise Price per Share, Minimum	2,660.00
Ending Balance, Exercise Price per Share, Maximum	6,280.00

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Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Cancellations in Period

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Plan Adjustment

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- Definition

The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(2)(iii)(1)

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The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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For presentations that combine terminations, the number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan or that expired.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

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- Definition

Weighted average price of options that were either forfeited or expired.

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-Publisher FASB

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- Definition

Number of options outstanding, including both vested and non-vested options.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

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- Definition

Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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- Definition

As of the balance sheet date, the number of shares into which fully vested and expected to vest stock options outstanding can be converted under the option plan.

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- Definition

Weighted average price at which option holders acquired shares when converting their stock options into shares.

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- Definition

The floor of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range.

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The ceiling of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range.

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Number of share options (or share units) exercised during the current period.

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

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