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STOCKHOLDERS' EQUITY AND EARNINGS PER SHARE (Tables) | 12 Months Ended
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Dec. 31, 2015
STOCKHOLDERS' EQUITY AND EARNINGS PER SHARE |
Earnings per share calculations | The following table presents EPS calculations for the years ended December 31, 2015, 2014 and 2013:
|  | Year Ended December 31,
($ in thousands, except per share data, shares in thousands) |  | 2015 |  | 2014 |  | 2013
Basic |  |  |  |  |  |
Net income (1) |  | $ | 384,677 |  |  | $ | 345,878 |  |  | $ | 293,324 |
Less: Preferred stock dividends |  | — |  |  | — |  |  | 3,428 |
Earnings allocated to participating securities |  | 3 |  |  | 506 |  |  | 1,682 |
Net income allocated to common stockholders (1) |  | $ | 384,674 |  |  | $ | 345,372 |  |  | $ | 288,214 |
Basic weighted-average common shares outstanding |  | 143,818 |  |  | 142,952 |  |  | 137,342 |
Basic EPS (1) |  | $ | 2.67 |  |  | $ | 2.42 |  |  | $ | 2.10 |
Diluted |  |  |  |  |  |
Net income allocated to common stockholders (1) |  | $ | 384,674 |  |  | $ | 345,372 |  |  | $ | 288,214 |
Add: Convertible preferred stock dividends |  | — |  |  | — |  |  | 3,428 |
Net income allocated to diluted common stockholders (1) |  | $ | 384,674 |  |  | $ | 345,372 |  |  | $ | 291,642 |
Basic weighted-average common shares outstanding |  | 143,818 |  |  | 142,952 |  |  | 137,342 |
Diluted potential common shares (2) |  | 694 |  |  | 611 |  |  | 2,232 |
Diluted weighted-average common shares outstanding |  | 144,512 |  |  | 143,563 |  |  | 139,574 |
Diluted EPS (1) |  | $ | 2.66 |  |  | $ | 2.41 |  |  | $ | 2.09 |
(1) | Prior periods were restated to reflect the retrospective application of adopting the new accounting guidance related to the Company’s investments in qualified affordable housing projects ASU 2014-01. Please see Note 9 — Investments in Qualified Affordable Housing Partnerships, Tax Credit and Other Investments, Net to the Consolidated Financial Statements for additional information.
(2) | Includes dilutive shares from stock options, and RSUs for the years ended December 31, 2015, 2014 and 2013. Also includes dilutive shares from warrants for the years ended December 31,

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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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