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Earnings per Share (Tables) | 9 Months Ended
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Sep. 30, 2013
Earnings Per Share [Abstract] |
Schedule of Computation of Basic and Diluted EPS | The computation of basic and diluted EPS is as follows:
|  | Three Months Ended September 30, |  |  | Nine Months Ended September 30, |
|  | 2013 |  |  | 2012 |  |  | 2013 |  |  | 2012 |
($ in thousands, except per share amounts) |  |  |  |  |  |  |  |  |  |  |  |
Net Income |  | $ | 21,302 |  |  | $ | 11,642 |  |  | $ | 50,270 |  |  | $ | 25,459 |
Noncontrolling interests |  |  | (213 | ) |  |  | — |  |  |  | 164 |  |  |  | — |
Allocation of earnings to preferred stockholders |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (64 | )
Net Income Attributable to Common Stockholders |  | $ | 21,089 |  |  | $ | 11,642 |  |  |  | 50,434 |  |  | $ | 25,395 |
Shares (in thousands): |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic: Weighted-average number of shares outstanding |  |  | 7,995 |  |  |  | 7,843 |  |  |  | 7,879 |  |  |  | 7,692 |
Plus: Incremental shares from assumed conversion of dilutive instruments |  |  | 232 |  |  |  | 274 |  |  |  | 246 |  |  |  | 363 |
Diluted: Weighted-average number of shares outstanding |  |  | 8,227 |  |  |  | 8,117 |  |  |  | 8,125 |  |  |  | 8,055 |
Earnings per share - basic |  | $ | 2.64 |  |  | $ | 1.48 |  |  | $ | 6.40 |  |  | $ | 3.30 |
Earnings per share - diluted |  | $ | 2.56 |  |  | $ | 1.43 |  |  | $ | 6.21 |  |  | $ | 3.15 |

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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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