EQUITY AND EARNINGS PER SHARE EQUITY AND EARNINGS PER SHARE - Changes in Outstanding Options (Details) |
12 Months Ended |
|---|---|
|
Dec. 31, 2017
$ / shares
shares
| |
| Number of Options | |
| Beginning Balance (in shares) | shares | 5,126,906 |
| Expired (in shares) | shares | (116,330) |
| Ending Balance (in shares) | shares | 5,010,576 |
| Weighted Average Strike Price | |
| Beginning Balance (in dollars per share) | $ / shares | $ 2.79 |
| Expired (in dollars per share) | $ / shares | 13.13 |
| Ending Balance (in dollars per share) | $ / shares | $ 2.55 |
| Weighted Average Life Remaining | |
| Exercisable, Number of Options (in shares) | shares | 3,858,081 |
| Exercisable, Weighted Average Strike Price (in shares) | $ / shares | $ 2.58 |
| Weighted Average Life Remaining (in years) | 5 years 7 months 1 day |
| Weighted Average Life Remaining (in years), Exercisable | 5 years 7 months 10 days |
| X | ||||||||||
- Definition Number of Options [Roll Forward] No definition available.
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Weighted Average Strike Price [Roll Forward] No definition available.
|
| X | ||||||||||
- Definition The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Number of options or other stock instruments for which the right to exercise has lapsed under the terms of the plan agreements. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Number of options outstanding, including both vested and non-vested options. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Weighted average price at which grantees could have acquired the underlying shares with respect to stock options of the plan that expired. No definition available.
|
| X | ||||||||||
- Definition Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|