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CAPITAL TRANSACTIONS (Details 4) |  |  | 12 Months Ended |
--- | --- | --- | --- | ---
Sep. 19, 2014 USD ($) $ / shares | Aug. 29, 2013 USD ($) $ / shares | Dec. 31, 2016 USD ($) $ / shares shares | Dec. 31, 2015 USD ($) $ / shares shares | Dec. 31, 2014 USD ($) installment $ / shares shares | Dec. 31, 2013 shares
Stock options |  |  |  |  |  |
Share Based Compensation |  |  |  |  |  |
Special one-time cash dividend paid per common share (in dollars per share) | $ / shares | $ 1.50 | $ 1.50 |  |  |  |
Outstanding options to purchase (in shares) | shares |  |  | 1,524,000 | 1,683,000 | 2,037,000 | 1,926,000
Exercisable (in shares) | shares |  |  | 1,201,000 | 958,000 |  |
Expected to vest (in shares) | shares |  |  | 306,000 | 588,000 |  |
Aggregate Intrinsic value, outstanding | $ |  |  | $ 4,200,000 | $ 900,000 |  |
Aggregate Intrinsic value, exercisable | $ |  |  | 3,700,000 | 900,000 |  |
Aggregate Intrinsic value, expected to vest | $ |  |  | 400,000 | 0 |  |
Share-based compensation, additional disclosures |  |  |  |  |  |
Share-based compensation expense | $ | $ 0 | $ 0 |  |  |  |
Related tax benefits | $ |  |  | $ 100,000 | 500,000 | $ 300,000 |
RSUs |  |  |  |  |  |
Share Based Compensation |  |  |  |  |  |
Special one-time cash dividend paid per common share (in dollars per share) | $ / shares | $ 1.50 | $ 1.50 |  |  |  |
Share-based compensation, additional disclosures |  |  |  |  |  |
Finnerty Model discount for lack of marketability |  |  | 11.90% |  |  |
Share-based compensation expense | $ | $ 0 | $ 0 | $ 2,400,000 | 2,900,000 | $ 1,000,000 |
Unrecognized share-based compensation expense, options | $ |  |  | 2,000,000 | $ 2,500,000 |  |
Unrecognized share-based compensation expense, other than options | $ |  |  | $ 3,000,000 |  |  |
Weighted-average period over which the remaining compensation expense is expected to be recognized |  |  | 1 year 6 months |  |  |
Minimum statutory withholding requirements that the Company pays on behalf of its employees | shares |  |  | 20,000 | 8,000 |  |
SARs |  |  |  |  |  |
Share Based Compensation |  |  |  |  |  |
Special one-time cash dividend paid per common share (in dollars per share) | $ / shares |  | $ 1.50 |  |  |  |
2012 Stock Incentive Plan | RSUs |  |  |  |  |  |
Number of Shares |  |  |  |  |  |
Units outstanding at the beginning of the period (in shares) | shares |  |  | 744,000 | 180,000 | 32,000 |
Granted (in shares) | shares |  |  | 281,000 | 679,000 | 156,000 |
Issued (in shares) | shares |  |  | (154,000) | (30,000) | 0 |
Forfeited or canceled (in shares) | shares |  |  | (33,000) | (85,000) | (8,000) |
Units outstanding at the end of the period (in shares) | shares |  |  | 838,000 | 744,000 | 180,000 |
Weighted Average Grant Date Fair Value |  |  |  |  |  |
Units outstanding at the beginning of the period (in dollars per share) | $ / shares |  |  | $ 12.48 | $ 15.09 | $ 12.47 |
Granted (in dollars per share) | $ / shares |  |  | 9.49 | 12.61 | 10.73 |
Issued (in dollars per share) | $ / shares |  |  | 13.05 | 13.63 | 0.00 |
Forfeited or canceled (in dollars per share) | $ / shares |  |  | 12.20 | 12.84 | 15.37 |
Units outstanding at the end of the period (in dollars per share) | $ / shares |  |  | $ 11.39 | $ 12.48 | $ 15.09 |
Share-based compensation, additional disclosures |  |  |  |  |  |
Vesting period |  |  |  |  | 1 year |
Number of monthly installments for vesting of stock awards | installment |  |  |  |  | 12 |
2012 Stock Incentive Plan | RSUs | Minimum |  |  |  |  |  |
Share-based compensation, additional disclosures |  |  |  |  |  |
Vesting period |  |  | 12 months |  |  |
2012 Stock Incentive Plan | RSUs | Maximum |  |  |  |  |  |
Share-based compensation, additional disclosures |  |  |  |  |  |
Vesting period |  |  | 48 months |  |  |
2012 Stock Incentive Plan | RSUs | Board of Directors |  |  |  |  |  |
Number of Shares |  |  |  |  |  |
Number of shares subject to restriction period | shares |  |  | 69,000 | 60,000 |  |
Restriction period |  |  | 2 years |  |  |
2012 Stock Incentive Plan | Time-based RSUs |  |  |  |  |  |
Weighted Average Grant Date Fair Value |  |  |  |  |  |
Granted (in dollars per share) | $ / shares |  |  | $ 10.06 |  |  |
Share-based compensation, additional disclosures |  |  |  |  |  |
Vesting period |  |  | 3 years | 3 years |  |
2012 Stock Incentive Plan | Performance-based RSUs |  |  |  |  |  |
Weighted Average Grant Date Fair Value |  |  |  |  |  |
Granted (in dollars per share) | $ / shares |  |  | $ 8.16 | $ 12.13 |  |

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