Stock Based Compensation (Tables) |
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Components of Stock Based Compensation Expense |
Stock-based compensation expense included the following components:
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Weighted Average Assumption Used To Estimate Fair Value of Stock Options |
The fair value of stock options granted during 2018, 2017 and 2016 and the weighted average assumptions used to estimate the fair value are as follows:
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Schedule of Stock Option Activity |
Activity related to stock options for 2018 is as follows:
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Additional Information Relating to Stock Options |
Additional information relating to stock options is as follows:
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Restricted Stock Units [Member] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Activity Related to Restricted Stock and Restricted Stock Units |
The weighted average grant date fair values of performance-based and time-based restricted stock units granted during 2018, 2017 and 2016 are as follows:
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Schedule of Nonvested Restricted Stock Units Activity |
Activity related to restricted stock units for 2018 is as follows:
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- Definition Schedule Of Share Based Compensation Arrangement By Share Based Payment Award Options Additional Information Table Text Block No definition available.
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- Definition Tabular disclosure of the amount of total share-based compensation cost, including the amounts attributable to each share-based compensation plan and any related tax benefits. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Tabular disclosure of the number and weighted-average grant date fair value for restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock units that were granted, vested, or forfeited during the year. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Tabular disclosure of the weighted-average grant-date fair value of equity options or other equity instruments granted during the year. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Details
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