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Stock Compensation Plans | 12 Months Ended
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Dec. 31, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |
Stock Compensation Plans | Stock Compensation Plans The Company's 2014 Long-Term Incentive Compensation Plan, dated February 28, 2014 and subsequently approved by Shareholders on May 2, 2014 (the "2014 LT Plan") is authorized to issue up to 1.75 million shares of common stock as options, share appreciation rights, restricted shares and units, performance shares and units and other stock or cash-based awards. Approximately 410 thousand shares remain available for issuance at December 31, 2018. Stock-based compensation expense for all stock-based compensation awards are based on the grant-date fair value. The Company recognizes these compensation costs on a straight-line basis over the requisite service period of the award. Total compensation expense recognized in the Consolidated Statement of Income for all stock compensation programs was $6.6 million, $6.1 million, and $7.0 million in 2018, 2017 and 2016, respectively. Non-Qualified Stock Options ("Options") The Company granted non-qualified stock options during 2015 under the 2014 LT Plan, upon hiring of a senior executive. The options have a term of seven years and have three year annual graded vesting. The fair value of the options was estimated at the date of grant under the Black-Scholes option pricing model with the following assumptions. Expected volatility was estimated based on the historical volatility of the Company's common shares over the 5.5 years prior to the grant date. The average expected life was based on the contractual term of the plan. The risk-free rate is based on the U.S. Treasury Strips available with maturity period consistent with the expected life. Forfeitures are estimated at the date of grant based on historical experience. The weighted average assumptions used in the determination of fair value for stock option awards were as follows:
| 2015
Risk free interest rate | 1.80 | %
Dividend yield | 1.58 | %
Volatility factor of the expected market price of the common shares | 0.35 |
Expected life for the options (in years) | 5.50 |
A reconciliation of the number of Options outstanding and exercisable under the 2014 LT Plan as of December 31, 2018, and changes during the period then ended, is as follows:
| Shares (in thousands) |  | Weighted- Average Exercise Price |  | Weighted- Average Remaining Contractual Term |  | Aggregate Intrinsic Value (000's)
Options outstanding at January 1, 2018 | 325 |  |  | $ | 35.40 |  |  |  |  |
Options granted | — |  |  | — |  |  |  |  |
Options exercised |  |  |  | — |  |  |  |  |
Options cancelled / forfeited | — |  |  | — |  |  |  |  |
Options outstanding at December 31, 2018 | 325 |  |  | $ | 35.40 |  |  | — |  |  | $ | — |
Vested and expected to vest at December 31, 2018 | 325 |  |  | $ | 35.40 |  |  | — |  |  | $ | — |
Options exercisable at December 31, 2018 | 325 |  |  | $ | 35.40 |  |  | — |  |  | $ | — |
| Year ended December 31,
(in thousands) | 2018
Total intrinsic value of Options exercised | $ | — |
Total fair value of shares vested | $ | 1,123 |
Weighted average fair value of Options granted | $ | — |
As of December 31, 2018, there was no unrecognized compensation cost related to Options granted under the 2014 LT Plan. Restricted Stock Awards The LT Plans permit awards of restricted stock. These shares carry voting and dividend equivalent rights upon vesting; however, sale of the shares is restricted prior to vesting. Restricted shares vest over a period of 3 years, with one-third vesting each January 1 of the following first, second, and third years. Total restricted stock expense is equal to the market value of the Company's common shares on the date of the award and is recognized over the service period on a straight-line basis. In 2018, there were 133.4 thousand shares issued to members of management and directors. A summary of the status of the Company's non-vested restricted shares as of December 31, 2018, and changes during the period then ended, is presented below:
| Shares (in thousands) |  | Weighted-Average Grant-Date Fair Value
Non-vested restricted shares at January 1, 2018 | 229 |  |  | $ | 34.22 |
Granted | 133 |  |  | 34.36 |
Vested | (137 | ) |  | 34.25 |
Forfeited | (7 | ) |  | 35.23 |
Non-vested restricted shares at December 31, 2018 | 218 |  |  | $ | 34.25 |
| Year ended December 31,
| 2018 |  | 2017 |  | 2016
Total fair value of shares vested (000's) | $ | 4,681 |  |  | $ | 3,751 |  |  | $ | 4,038 |
Weighted average fair value of restricted shares granted | $ | 34.36 |  |  | $ | 37.13 |  |  | $ | 27.20 |
As of December 31, 2018, there was $2.3 million of total unrecognized compensation cost related to non-vested restricted shares granted under the LT Plans. That cost is expected to be fully amortized by November 2021. EPS-Based Performance Share Units (“EPS PSUs”) The LT Plans also allow for the award of EPS PSUs. Each EPS PSU gives the participant the right to receive common shares dependent on the achievement of specified performance results over a 3-year performance period. At the end of the performance period, the number of shares of stock issued will be determined by adjusting the award downward from a target award. Fair value of EPS PSUs issued is based on the market value of the Company's common shares on the date of the award. The related compensation expense is recognized over the performance period when achievement of the award is probable and is adjusted for changes in the number of shares expected to be issued if changes in performance are expected. In 2018, there were 96.8 thousand PSUs issued to members of management. Currently, the Company is accounting for the awards granted in 2016, 2017 and 2018 at 0%, 23% and 38% of the maximum amount available for issuance, respectively. EPS PSUs Activity A summary of the status of the Company's EPS PSUs as of December 31, 2018, and changes during the period then ended, is presented below:
| Shares (in thousands) |  | Weighted-Average Grant-Date Fair Value
Non-vested at January 1, 2018 | 275 |  |  | $ | 36.61 |
Granted | 97 |  |  | 35.36 |
Vested | — |  |  | — |
Forfeited | (125 | ) |  | 41.85 |
Non-vested at December 31, 2018 | 247 |  |  | $ | 33.47 |
| Year ended December 31,
| 2018 |  | 2017 |  | 2016
Weighted average fair value of PSUs granted | $ | 35.36 |  |  | $ | 39.20 |  |  | $ | 27.54 |
As of December 31, 2018, there was $1.0 million unrecognized compensation cost related to non-vested EPS PSUs granted under the LT Plans. That cost is expected to be fully amortized by December 2020. TSR-Based Performance Share Units (“TSR PSUs”) Beginning in 2016, the Company began granting Total Shareholder Return-Based PSUs ("TSR PSUs"). Each TSR PSU gives the participant the right to receive common shares dependent on total shareholder return over a 3-year period. At the end of the period, the number of shares of stock issued will be determined by adjusting the award downward from a target award. Fair value of TSR PSUs was estimated at the date of grant using a Monte Carlo Simulation with the following assumptions: Expected volatility was estimated based on the historical volatility of the Company's common shares over the 2.83 year period prior to the grant date. The average expected life was based on the contractual term of the plan. The risk-free rate is based on the U.S. Treasury Strips available with maturity period consistent with the expected life. Forfeitures are estimated at the date of grant based on historical experience. In 2018, there were 96.8 thousand TSR PSUs issued to members of management.
| 2018
Risk free interest rate | 2.34 | %
Dividend yield | — | %
Volatility factor of the expected market price of the common shares | 0.37 |
Expected term (in years) | 2.83 |
Correlation coefficient | 0.43 |
TSR PSUs Activity A summary of the status of the Company's PSUs as of December 31, 2018, and changes during the period then ended, is presented below:
| Shares (in thousands) |  | Weighted-Average Grant-Date Fair Value
Non-vested at January 1, 2018 | 183 |  |  | $ | 33.26 |
Granted | 97 |  |  | 46.51 |
Vested | — |  |  | — |
Forfeited | (33 | ) |  | 36.57 |
Non-vested at December 31, 2018 | 247 |  |  | $ | 38.02 |
| Year ended December 31,
| 2018 |  | 2017 |  | 2016
Weighted average fair value of PSUs granted | $ | 46.51 |  |  | $ | 42.53 |  |  | $ | 26.43 |
As of December 31, 2018, there was approximately $1.9 million unrecognized compensation cost related to non-vested TSR PSUs granted under the LT Plans. That cost is expected to be fully amortized by December 2020. Employee Share Purchase Plan (the “ESP Plan”) The Company's 2004 ESP Plan allows employees to purchase common shares through payroll withholdings. The Company has approximately 51 thousand common shares remaining available for issuance to and purchase by employees under this plan. The ESP Plan also contains an option component. The purchase price per share under the ESP Plan is the lower of the market price at the beginning or end of the year. The Company records a liability for withholdings not yet applied towards the purchase of common stock. The fair value of the option component of the ESP Plan is estimated at the date of grant under the Black-Scholes option pricing model with the following assumptions at the grant date. Expected volatility was estimated based on the historical volatility of the Company's common shares over the past year. The average expected life was based on the contractual term of the plan. The risk-free rate is based on the U.S. Treasury yield curve rate with a one year term. Forfeitures are estimated at the date of grant based on historical experience.
| 2018 |  | 2017 |  | 2016
Risk free interest rate | 2.57 | % |  | 1.76 | % |  | 0.61 | %
Dividend yield | 2.23 | % |  | 2.06 | % |  | 1.96 | %
Volatility factor of the expected market price of the common shares | 0.33 |  |  | 0.28 |  |  | 0.36 |
Expected life for the options (in years) | 1.00 |  |  | 1.00 |  |  | 1.00 |

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- Definition The entire disclosure for compensation-related costs for equity-based compensation, which may include disclosure of policies, compensation plan details, allocation of equity compensation, incentive distributions, equity-based arrangements to obtain goods and services, deferred compensation arrangements, employee stock ownership plan details and employee stock purchase plan details. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -URI http://asc.fasb.org/topic&trid=2228938 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 50 -URI http://asc.fasb.org/subtopic&trid=2208855 + Details
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