SHAREHOLDER'S EQUITY (Details) - USD ($) shares in Thousands, $ in Thousands |
3 Months Ended | 6 Months Ended | ||||||
|---|---|---|---|---|---|---|---|---|
Jun. 30, 2019 |
Jun. 30, 2018 |
Dec. 31, 2017 |
Sep. 30, 2017 |
Jun. 30, 2017 |
Jun. 30, 2019 |
Jun. 30, 2018 |
Dec. 31, 2018 |
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| ESPP [Line items] | ||||||||
| Other current liabilities | $ 763 | $ 763 | $ 1,279 | |||||
| Other long term liabilities | 944 | 944 | 1,041 | |||||
| Total Dividend Equivalent Liability | $ 1,707 | $ 1,707 | $ 2,320 | |||||
| Espp Shares Market Value | 85.00% | 85.00% | ||||||
| Employee stock purchase plan, authorized shares | 1,000 | 1,000 | ||||||
| ESPP Share Discount | 15.00% | 15.00% | ||||||
| Number of shares purchased | 0 | 0 | 0 | |||||
| Non cash compensation expense recognized | $ 2,634 | $ 2,951 | $ 5,473 | $ 6,055 | ||||
| Stock Repurchase Prgram Authorized Amount | $ 100,000 | $ 100,000 | ||||||
| Number of Shares Authorized to be Repurchased | 0 | 0 | ||||||
| ESPP [Member] | ||||||||
| ESPP [Line items] | ||||||||
| Number of shares purchased | 159 | 100 | ||||||
| Non cash compensation expense recognized | $ 131 | $ 125 | ||||||
| X | ||||||||||
- Definition Dividend equivalent liability noncurrent inlude the right upon vesting to receive a cash payment equal to the aggregate amount of divdiends, in any, that holder would have recevied on the shares of common stock underlying their RSUs if such RSUs had been vested during the period. No definition available.
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- Definition Percentage of discount rate related to ESPP Shares. No definition available.
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- Definition Percentage of market value of ESPP Shares. No definition available.
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- Definition Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Carrying value as of the balance sheet date of dividends declared but unpaid on equity securities issued by the entity and outstanding. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Carrying value as of the balance sheet date of dividends declared but unpaid on equity securities issued by the entity and outstanding. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Definition The shares or units in an ESOP trust that have been assigned to individual participant accounts based on a known formula. IRS rules require allocations to be nondiscriminatory generally based on compensation, length of service, or a combination of both. For any particular participant such shares or units may be vested, unvested, or partially vested. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Number of shares of capital stock issued (purchased by employees) in connection with an employee stock ownership plan. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of stock repurchase plan authorized. No definition available.
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- Definition The number of shares authorized to be repurchased by an entity's Board of Directors under a stock repurchase plan. No definition available.
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- Details
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