Stock-Based Compensation	6 Months Ended
Jun. 30, 2020
Stock-Based Compensation
Stock-Based Compensation	10. Stock-Based Compensation The Company maintains two equity compensation plans under which stock-based compensation has been granted: the 2017 Long-Term Incentive Plan (which was amended and restated as of April 23, 2020) (the “LTIP”) and the 2007 Long-Term Incentive Plan (the “2007 Plan”). Upon the adoption of the original LTIP in 2017, awards were no longer granted under the 2007 Plan. The LTIP provides for grants of (a) incentive stock options qualified as such under U.S. federal income tax laws, (b) stock options that do not qualify as incentive stock options, (c) stock appreciation rights, (d) restricted stock awards, (e) restricted stock units, (f) performance share awards, (g) phantom stock units, (h) stock bonuses, (i) dividend equivalents, and (j) any combination of such grants. Ordinarily the number of restricted stock awards and ROIC-based performance share awards are determined by dividing the amount of the equity compensation award allocated to each award type, by the closing price of the Company’s common stock on the date of the grant. However, as a result of the negative impact of the COVID-19 pandemic on the Company’s stock price during late March and early April of 2020, the Company’s compensation committee elected to utilize the Company's average closing stock price during the last 30 trading days of 2019 to determine the number of restricted stock and ROIC-based performance shares granted in 2020. The use of this 30-trading day average resulted in the utilization of an average stock price of $33.57, instead of the grant date closing stock price of $26.75. The Company has outstanding grants of time-vested stock awards in the form of restricted stock awards and restricted stock units. During the six months ended June 30, 2020, the Company granted 104,857 shares of time-vested stock awards under the LTIP to employees and to our non-employee directors at a weighted average grant date fair value of $26.75. These time-vested stock awards granted to non-employee directors vest over one year, time-vested stock awards granted to employees vest ratably on April 27, 2021, March 23, 2022 and March 23, 2023. During the six months ended June 30, 2020, 77,397 shares of time-vested stock awards vested at a weighted average grant date fair value of $34.31. During the six months ended June 30, 2020, the Company granted 79,788 performance share awards under the LTIP at target, which cliff vest on December 31, 2022, at a weighted average grant date fair value of $34.10. The number of shares ultimately earned under a performance award may vary from zero to 200% of the target shares awarded, based upon the Company’s performance compared to certain metrics. The metrics used were determined at the time of the grant by the Compensation Committee of the Board of Directors and were either based on internal measures, such as the Company’s financial performance compared to target, or on a market-based metric, such as the Company’s stock performance compared to a peer group. Performance awards granted cliff vest upon attainment of the stated performance targets and minimum service requirements and are paid in shares of the Company’s common stock. During the six months ended June 30, 2020, plan participants exercised options to purchase 4,575 shares of the Company’s common stock with a weighted average exercise price of $17.85. The Company recognizes stock-based compensation expense related to restricted stock awards and restricted stock units based on the grant date fair value, which was the closing price of the Company’s stock on the date of grant. The fair value is expensed over the service period, which is generally three years. For performance awards, the Company recognizes stock-based compensation expense based on the grant date fair value of the award. The fair value of internal metric-based performance awards is determined by the closing stock price of the Company’s common stock on the date of the grant. The fair value of market-based performance awards is computed using a Monte Carlo simulation. Performance awards are expensed over the service period of approximately 2.8 years, and the Company adjusts the stock-based compensation expense related to internal metric-based performance awards according to its determination of the shares expected to vest at each reporting date.

Stock-Based Compensation

6 Months Ended

Jun. 30, 2020

10. Stock-Based Compensation

The Company maintains two equity compensation plans under which stock-based compensation has been granted: the 2017 Long-Term Incentive Plan (which was amended and restated as of April 23, 2020) (the “LTIP”) and the 2007 Long-Term Incentive Plan (the “2007 Plan”). Upon the adoption of the original LTIP in 2017, awards were no longer granted under the 2007 Plan. The LTIP provides for grants of (a) incentive stock options qualified as such under U.S. federal income tax laws, (b) stock options that do not qualify as incentive stock options, (c) stock appreciation rights, (d) restricted stock awards, (e) restricted stock units, (f) performance share awards, (g) phantom stock units, (h) stock bonuses, (i) dividend equivalents, and (j) any combination of such grants.

Ordinarily the number of restricted stock awards and ROIC-based performance share awards are determined by dividing the amount of the equity compensation award allocated to each award type, by the closing price of the Company’s common stock on the date of the grant. However, as a result of the negative impact of the COVID-19 pandemic on the Company’s stock price during late March and early April of 2020, the Company’s compensation committee elected to utilize the Company's average closing stock price during the last 30 trading days of 2019 to determine the number of restricted stock and ROIC-based performance shares granted in 2020. The use of this 30-trading day average resulted in the utilization of an average stock price of $33.57, instead of the grant date closing stock price of $26.75.

The Company has outstanding grants of time-vested stock awards in the form of restricted stock awards and restricted stock units. During the six months ended June 30, 2020, the Company granted 104,857 shares of time-vested stock awards under the LTIP to employees and to our non-employee directors at a weighted average grant date fair value of $26.75. These time-vested stock awards granted to non-employee directors vest over one year, time-vested stock awards granted to employees vest ratably on April 27, 2021, March 23, 2022 and March 23, 2023. During the six months ended June 30, 2020, 77,397 shares of time-vested stock awards vested at a weighted average grant date fair value of $34.31.

During the six months ended June 30, 2020, the Company granted 79,788 performance share awards under the LTIP at target, which cliff vest on December 31, 2022, at a weighted average grant date fair value of $34.10. The number of shares ultimately earned under a performance award may vary from zero to 200% of the target shares awarded, based upon the Company’s performance compared to certain metrics. The metrics used were determined at the time of the grant by the Compensation Committee of the Board of Directors and were either based on internal measures, such as the Company’s financial performance compared to target, or on a market-based metric, such as the Company’s stock performance compared to a peer group. Performance awards granted cliff vest upon attainment of the stated performance targets and minimum service requirements and are paid in shares of the Company’s common stock.

During the six months ended June 30, 2020, plan participants exercised options to purchase 4,575 shares of the Company’s common stock with a weighted average exercise price of $17.85.

The Company recognizes stock-based compensation expense related to restricted stock awards and restricted stock units based on the grant date fair value, which was the closing price of the Company’s stock on the date of grant. The fair value is expensed over the service period, which is generally three years.

For performance awards, the Company recognizes stock-based compensation expense based on the grant date fair value of the award. The fair value of internal metric-based performance awards is determined by the closing stock price of the Company’s common stock on the date of the grant. The fair value of market-based performance awards is computed using a Monte Carlo simulation. Performance awards are expensed over the service period of approximately 2.8 years, and the Company adjusts the stock-based compensation expense related to internal metric-based performance awards according to its determination of the shares expected to vest at each reporting date.