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Stockholders' Equity and Earnings Per Share (Tables) | 9 Months Ended
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Sep. 30, 2017
Stockholders' Equity and Earnings Per Share [Abstract] |
Schedule of earnings per share calculations | The following table presents the EPS calculations for the three and nine months ended September 30, 2017 and 2016:
|  | Three Months Ended September 30, |  | Nine Months Ended September 30,
($ and shares in thousands, except per share data) |  | 2017 |  | 2016 |  | 2017 |  | 2016
Basic |  |  |  |  |  |  |  |
Net income |  | $ | 132,660 |  |  | $ | 110,143 |  |  | $ | 420,726 |  |  | $ | 320,943 |
Basic weighted average number of shares outstanding |  | 144,498 |  |  | 144,122 |  |  | 144,412 |  |  | 144,061 |
Basic EPS |  | $ | 0.92 |  |  | $ | 0.76 |  |  | $ | 2.91 |  |  | $ | 2.23 |
Diluted |  |  |  |  |  |  |  |
Net income |  | $ | 132,660 |  |  | $ | 110,143 |  |  | $ | 420,726 |  |  | $ | 320,943 |
Basic weighted average number of shares outstanding |  | 144,498 |  |  | 144,122 |  |  | 144,412 |  |  | 144,061 |
Diluted potential common shares (1) |  | 1,384 |  |  | 1,116 |  |  | 1,437 |  |  | 1,025 |
Diluted weighted average number of shares outstanding |  | 145,882 |  |  | 145,238 |  |  | 145,849 |  |  | 145,086 |
Diluted EPS |  | $ | 0.91 |  |  | $ | 0.76 |  |  | $ | 2.88 |  |  | $ | 2.21 |
(1) | Includes dilutive shares from RSUs and warrants for the three and nine months ended September 30, 2017 and 2016.

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- Definition Stockholders' Equity and Earnings Per Share [Abstract] + 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/2003/role/presentationRef -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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