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Earnings per Share | 9 Months Ended
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Sep. 30, 2013
Earnings Per Share [Abstract] |
Earnings per Share | 11. Earnings per Share Basic earnings per share (“EPS”) excludes dilution for potential common stock issuances and is computed by dividing net income available to common shareholders by the weighted-average number of common shares outstanding for the period. Diluted EPS reflects the potential dilution that could occur if securities or other contracts to issue common stock were exercised or converted into common stock. For the calculation of diluted EPS, the basic weighted-average number of shares is increased by the dilutive effect of RSUs and stock options using the treasury stock method. 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 |
For the three and nine months ended September 30, 2013, respectively, there were 3,115 instruments excluded from the above computation of weighted-average shares for diluted EPS because the effect would be anti-dilutive. For the three and nine months ended September 30, 2012, respectively, there were no instruments excluded from the above computation of weighted-average shares for diluted EPS because the effect would be anti-dilutive.

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- Definition The entire disclosure for earnings per share. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=7655603&loc=d3e1278-109256 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=7655603&loc=d3e1252-109256 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 55 -Paragraph 52 -URI http://asc.fasb.org/extlink&oid=32703322&loc=d3e4984-109258 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.21) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 + Details
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