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STOCK BASED AND DEFERRED COMPENSATION - Summary of Stock Option Activity (Details) - USD ($) $ / shares in Units, $ in Thousands | 12 Months Ended | 84 Months Ended
--- | --- | ---
Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2016
Options |  |  |  |
Options outstanding at beginning of year (in shares) | 14,400 | 181,440 | 258,815 |
Granted (in shares) | 0 | 0 | 0 | 0
Exercised (in shares) | (14,400) | (147,040) | (60,695) |
Cancelled (in shares) | 0 | (20,000) | (16,680) |
Outstanding at end of year (in shares) | 0 | 14,400 | 181,440 | 0
Weighted Average Exercise Price |  |  |  |
Options outstanding at beginning of year (in dollars per share) | $ 16.11 | $ 18.69 | $ 19.63 |
Exercised (in dollars per share) | $ 16.11 | 19.62 | 17.16 |
Cancelled (in dollars per share) |  | 13.69 | 38.86 |
Outstanding at end of year (in dollars per share) |  | $ 16.11 | $ 18.69 |
Options outstanding at end of year, additional disclosures |  |  |  |
Weighted Average Remaining Contractual Life | 0 years |  |  |
Aggregate Intrinsic Value | $ 0 |  |  | $ 0
Vested at end of year |  |  |  |
Options (in shares) | 0 |  |  | 0
Weighted Average Remaining Contractual Life | 0 years |  |  |
Aggregate Intrinsic Value | $ 0 |  |  | $ 0
Exercisable at end of year |  |  |  |
Options (in shares) | 0 | 14,400 | 181,440 | 0
Weighted Average Exercise Price (in dollars per share) |  | $ 16.11 | $ 18.69 |
Weighted Average Remaining Contractual Life | 0 years |  |  |
Aggregate Intrinsic Value | $ 0 |  |  | $ 0
Price range of options exercised - lower range limit (in dollars per share) | $ 11.48 | 11.48 | 11.48 |
Price range of options exercised - upper range limit (in dollars per share) | $ 22.11 | 22.11 | 42.82 |
Price range of options outstanding - lower range limit (in dollars per share) |  | 11.48 | 11.48 |
Price range of options outstanding - upper range limit (in dollars per share) |  | $ 22.11 | $ 22.11 |

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- 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. + 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)(1)(iii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition 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. + 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)(1)(iv)(3) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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