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Stock Compensation - Restricted Stock and Performance Share Grants | 3 Months Ended
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Mar. 31, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |
Stock Compensation - Restricted Stock and Performance Share Grants | STOCK COMPENSATION - RESTRICTED STOCK AND PERFORMANCE SHARE GRANTS The Company’s stock incentive plans provide for the making of awards to employees based upon time-based criteria or through the achievement of performance-related objectives. The Company has issued three types of stock grant awards under these plans: restricted stock with time-based vesting; performance share grants that only vest upon the achievement of specified performance conditions, such as corporate cash flow goals, or Performance Condition Grants; and performance share grants that include threshold, target, and maximum achievement levels based on the achievement of specific performance milestones, or Performance Milestone Grants. The Company has granted performance share grants that contain both performance-based and market-based conditions. Compensation cost for these awards is recognized based on either the achievement of the performance-based conditions, if they are considered probable, or if they are not considered probable, on the achievement of the market-based condition. Failure to satisfy the threshold performance conditions will result in the forfeiture of shares. Forfeiture of share awards with time-based or performance-based restrictions results in a reversal of previously recognized share-based compensation expense. Forfeiture of share awards with market-based restrictions does not result in a reversal of previously recognized share-based compensation expense. The following is a summary of the Company's performance share grants with performance conditions for the three months ended March 31, 2016:
Performance Share Grants with Performance Conditions
Below threshold performance |  | — |
Threshold performance |  | 205,712 |
Target performance |  | 377,385 |
Maximum performance |  | 569,972 |
The following is a summary of the Company’s stock grant activity, both time and performance share grants, assuming target achievement for outstanding performance share grants for the following periods:
| March 31, 2016 |  | December 31, 2015
Stock grants outstanding beginning of the year at target achievement | 272,353 |  |  | 237,045 |
New stock grants/additional shares due to maximum achievement | 245,781 |  |  | 114,221 |
Vested grants | (36,028 | ) |  | (52,436 | )
Expired/forfeited grants | (524 | ) |  | (26,477 | )
Stock grants outstanding March 31, 2016 at target achievement | 481,582 |  |  | 272,353 |
The unamortized costs associated with nonvested stock grants and the weighted-average period over which it is expected to be recognized as of March 31, 2016 were $5,218,000 and 19 months, respectively. The fair value of restricted stock with time-based vesting features is based upon the Company’s share price on the date of grant and is expensed over the service period. Fair value of performance share grants that cliff vest based on the achievement of performance conditions is based on the share price of the Company’s stock on the day of grant once the Company determines that it is probable that the award will vest. This fair value is expensed over the service period applicable to these grants. For performance share grants that contain a range of shares from zero to maximum we determine, based on historic and projected results, the probability of (1) achieving the performance objective, and (2) the level of achievement. Based on this information, we determine the fair value of the award and measure the expense over the service period related to these grants. Because the ultimate vesting of all performance share grants is tied to the achievement of a performance condition, we estimate whether the performance condition will be met and over what period of time. Ultimately, we adjust compensation cost according to the actual outcome of the performance condition. During the second quarter of 2015, the 2014 performance milestone grants were modified to fix the number of shares to be received rather than have the number of shares to be issued at vesting float with the price of the stock, which converted the awards from liability awards to equity awards. As such, we reclassified $1,065,000 from other liabilities to equity. In accordance with ASC 718, "Compensation - Stock Compensation," this resulted in a probable-to-improbable modification resulting in no impact to earnings. Under the Non-Employee Director Stock Incentive Plan, or NDSI Plan, each non-employee director receives his or her annual compensation in stock. The stock is granted at the end of each quarter based on the quarter ending stock price. The following table summarizes stock compensation costs for the Company's Employee 1998 Stock Incentive Plan, or the Employee Plan, and NDSI Plan for the following periods:
($ in thousands) | Three Months Ended
Employee Plan: | March 31, 2016 |  | March 31, 2015
Expensed | $ | 794 |  |  | $ | 741 |
Capitalized | 56 |  |  | 36 |
| 850 |  |  | 777 |
NDSI Plan - Expensed | 179 |  |  | 212 |
| $ | 1,029 |  |  | $ | 989 |

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