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Earnings Per Share (Details) - shares | 12 Months Ended
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Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items] |  |  |
Stock Issued During Period, Shares, Acquisitions |  | 1,037,205 | 435,457
Common Stock [Member] |  |  |
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items] |  |  |
Stock Issued During Period, Shares, Acquisitions |  | 1,037,205 | 435,457
Treasury Stock, Shares, Acquired | 76,000 | 421,253 | 50,000
Common Stock [Member] | share repurchase program [Member] |  |  |
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items] |  |  |
Treasury Stock, Shares, Acquired |  | 334,603 |
2017 Employees Long Term Incentive Plan [Member] |  |  |
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items] |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross | 62,265 | 74,440 |
2017 Employees Long Term Incentive Plan [Member] | Common Stock [Member] |  |  |
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items] |  |  |
Treasury Stock, Shares, Acquired | 76,000 | 86,650 | 50,000
2017 Employees Long Term Incentive Plan [Member] | Restricted Stock Units (RSUs) [Member] |  |  |
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items] |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross |  | 15,700 | 13,637
2017 Employees Long Term Incentive Plan [Member] | Performance Shares [Member] |  |  |
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items] |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross | 62,265 | 58,740 | 48,053

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