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Stocholders' Equity (Tables) | 3 Months Ended
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Mar. 31, 2020
Earnings Per Share [Abstract] |
Schedule of Weighted Average Number of Shares [Table Text Block] |
| Three Months Ended March 31,
| 2020 |  | 2019
Computation of diluted weighted average shares outstanding: |  |  |
Basic weighted average shares outstanding | 53,607,104 |  |  | 51,880,534 |
Incremental shares from assumed exercise of stock options and vesting of restricted stock | 1,172,217 |  |  | 1,285,139 |
Incremental shares from assumed conversion of convertible debentures | — |  |  | 2,411,194 |
Diluted weighted average shares outstanding | 54,779,321 |  |  | 55,576,867 |

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- Definition Tabular disclosure of the weighted average number of shares used in calculating basic net earnings per share (or unit) and diluted earnings per share (or unit). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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