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Earnings Per Share (Tables) | 12 Months Ended
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Dec. 31, 2019
Earnings Per Share [Abstract] |
Schedule of Reconciliation of Earnings Per Share |
2019 |  | Income |  | Shares |  | Per Share
($ in thousands, except per share amounts) |  | (Numerator) |  | (Denominator) |  | Amount
Basic EPS: |  |  |  |  |  |  |  |  |
Net income available to common stockholders |  | $ | 271,623 |  |  | 59,421 |  |  | $ | 4.57 |
Effect of dilutive securities: |  |  |  |  |  |  |  |  |
Stock compensation plans |  | — |  |  | 583 |  |  |  |
Diluted EPS: |  |  |  |  |  |  |  |  |
Net income available to common stockholders |  | $ | 271,623 |  |  | 60,004 |  |  | $ | 4.53 |
2018 |  | Income |  | Shares |  | Per Share
($ in thousands, except per share amounts) |  | (Numerator) |  | (Denominator) |  | Amount
Basic EPS: |  |  |  |  |  |  |  |  |
Net income available to common stockholders |  | $ | 178,939 |  |  | 58,950 |  |  | $ | 3.04 |
Effect of dilutive securities: |  |  |  |  |  |  |  |  |
Stock compensation plans |  | — |  |  | 763 |  |  |  |
Diluted EPS: |  |  |  |  |  |  |  |  |
Net income available to common stockholders |  | $ | 178,939 |  |  | 59,713 |  |  | $ | 3.00 |
2017 |  | Income |  | Shares |  | Per Share
($ in thousands, except per share amounts) |  | (Numerator) |  | (Denominator) |  | Amount
Basic EPS: |  |  |  |  |  |  |  |  |
Net income available to common stockholders |  | $ | 168,826 |  |  | 58,458 |  |  | $ | 2.89 |
Effect of dilutive securities: |  |  |  |  |  |  |  |  |
Stock compensation plans |  | — |  |  | 899 |  |  |  |
Diluted EPS: |  |  |  |  |  |  |  |  |
Net income available to common stockholders |  | $ | 168,826 |  |  | 59,357 |  |  | $ | 2.84 |

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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://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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