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Earnings per Common Share (Tables) | 3 Months Ended
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Mar. 31, 2022
Earnings Per Share [Abstract] |
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] |
|  | Three Months Ended March 31, |
(dollars in thousands, except for per share data) |  | 2022 |  |  | 2021 |
Net income available to common stockholders |  | $ | 29,872 |  |  | $ | 32,999 |
Earnings allocated to participating securities |  |  | (80 | ) |  |  | (186 | )
Income attributable to common stock |  | $ | 29,792 |  |  | $ | 32,813 |
Weighted average common shares outstanding, including participating securities |  |  | 39,560 |  |  |  | 39,738 |
Weighted average participating securities |  |  | (107 | ) |  |  | (181 | )
Weighted average common shares outstanding |  |  | 39,453 |  |  |  | 39,557 |
Incremental shares from assumed conversions of options, performance units and restricted shares |  |  | 274 |  |  |  | 232 |
Weighted average common and equivalent shares outstanding |  |  | 39,727 |  |  |  | 39,789 |
Earnings per common share: |  |  |  |  |  |  |  |
Basic |  | $ | 0.76 |  |  | $ | 0.83 |
Diluted |  |  | 0.75 |  |  |  | 0.82 |

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- References No definition available. + Details
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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257 + Details
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