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Earnings Per Share | 12 Months Ended
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Dec. 31, 2020
Earnings Per Share [Abstract] |
Earnings Per Share | Earnings per Share The following table provides a reconciliation of the numerators and denominators of basic and diluted earnings per share ("EPS"):
2020 |  | Income |  | Shares |  | Per Share
($ in thousands, except per share amounts) |  | (Numerator) |  | (Denominator) |  | Amount
Basic EPS: |  |  |  |  |  |
Net income available to common stockholders |  | $ | 246,355 |  |  | 59,862 |  |  | $ | 4.12 |
Effect of dilutive securities: |  |  |  |  |  |
Stock compensation plans |  | — |  |  | 431 |  |  |
Diluted EPS: |  |  |  |  |  |
Net income available to common stockholders |  | $ | 246,355 |  |  | 60,293 |  |  | $ | 4.09 |
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 |

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- Definition The entire disclosure for earnings per share. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=109243012&loc=SL65017193-207537 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -URI http://asc.fasb.org/topic&trid=2144383 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3630-109257 + Details
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