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Earnings per Share Earnings per Share (Tables) | 9 Months Ended
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Sep. 30, 2021
Earnings Per Share [Abstract] |
Schedule of Weighted Average Number of Shares [Table Text Block] | The following table summarizes the dilutive effect of RSUs and options to purchase common stock for the three and nine months ended September 30, 2021 and 2020:
|  | Three months ended September 30, |  | Nine months ended September 30,
|  | 2021 |  | 2020 |  | 2021 |  | 2020
Weighted average common shares—basic |  | 42,889,922 |  |  | 43,457,704 |  |  | 43,061,707 |  |  | 43,707,331 |
Dilutive effect of restricted stock units |  | 204,177 |  |  | — |  |  | 267,675 |  |  | — |
Dilutive effect of stock options |  | — |  |  | — |  |  | 16,395 |  |  | — |
Weighted average common shares—diluted |  | 43,094,099 |  |  | 43,457,704 |  |  | 43,345,777 |  |  | 43,707,331 |

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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=124432515&loc=d3e3550-109257 + Details
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