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Stock-Based Compensation Plans | 6 Months Ended
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Jun. 30, 2019
Stock-Based Compensation Plans [Abstract] |
Stock-Based Compensation Plans | 9. Stock-Based Compensation Plans On February 22, 2019, the Compensation/Incentive Committee of the Board of Directors (“CIC”) granted 6,864 Performance Stock Units (“PSUs”) contingent upon the achievement of certain total shareholder return (“TSR”) targets as compared to the TSR of a group of peer companies for the three year period ending December 31, 2021, the date at which such awards vest. The cumulative compensation cost of the TSR-based PSU award to be recorded over the three year service period is $3.0 million. On February 22, 2019, the CIC also granted 6,864 PSUs contingent upon the achievement of certain earnings per share (“EPS”) targets for the three year period ending December 31, 2021. At the end of each reporting period, the Company estimates the number of shares that it believes will ultimately be earned and records the corresponding expense over the service period of the award. We currently estimate the cumulative compensation cost of the EPS-based PSUs to be recorded over the three year service period is $2.2 million.

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