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Share-based Compensation Schedule of Share Based Payments Award Valuation Assumptions (Tables) | 6 Months Ended
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Jun. 30, 2020
Share-based Payment Arrangement [Abstract] |
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] | The grant date fair values of options granted under the 2018 Plan were determined using the Black-Scholes valuation approach with the following assumptions:
| For the Six Months Ended June 30, 2020
Risk-free interest rate | 0.51% - 1.40%
Expected exercise term (years) | 6.0
Expected dividend yield | 2.2% - 2.7%
Expected volatility | 45% - 46%

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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. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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