SHARE-BASED COMPENSATION - Equity Compensation Plan and RSU Acitivity (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
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| Restricted Stock Unit Activity [Abstract] | |||
| RSUs issued | 1,292,000 | 3,064,000 | 1,123,000 |
| RSUs forfeited | (396,000) | (379,000) | (27,000) |
| Net RSUs issued and increase (decrease) to paid-in capital | 896,000 | 2,685,000 | 1,096,000 |
| RSUs vested and released | 1,496,000 | 474,000 | 611,000 |
| RSUs issued, Amount | $ 10,078 | $ 35,628 | $ 10,381 |
| Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures To Paid In Capital | $ 8,850 | $ 34,511 | $ 10,101 |
| Equity Compensation Plan [Abstract] | |||
| Additional shares available for grant during the next period | 1,500,000 | ||
| Shares available for grant | 1,700,000 | ||
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- References No definition available.
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- References No definition available.
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- Definition Change in Paid in Capital as a result of net restricted stock units issued No definition available.
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- Definition The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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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). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The net total number of shares (or other type of equity) under an equity-based award plan, other than a stock option plan, that were granted, vested and forfeited during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition 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. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Gross number of share options (or share units) granted during the period. No definition available.
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- Definition Aggregate value of stock related to Restricted Stock Awards issued during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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