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Earnings per Common Share | 9 Months Ended
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Sep. 30, 2015
Earnings Per Share [Abstract] |
Earnings Per Common Share | Earnings per Common Share The Company applies the two-class method of computing basic and diluted EPS. Under the two-class method, EPS is determined for each class of common stock and participating security according to dividends declared and participation rights in undistributed earnings. The Company issues restricted shares under share-based compensation plans and preferred shares which qualify as participating securities. The following table sets forth the computation of basic and diluted earnings per share for the three and nine months ended September 30, 2015 and 2014:
|  | Three Months Ended |  | Nine Months Ended
|  | September 30, |  | September 30,
|  | 2015 |  | 2014 |  | 2015 |  | 2014
|  | (in thousands except per share)
Basic EPS: |  |  |  |  |  |  |  |
Net income |  | $ | 25,780 |  |  | $ | 21,583 |  |  | $ | 72,087 |  |  | $ | 62,654 |
Less: Earnings allocated to participating securities: |  |  |  |  |  |  |  |
Preferred Shares |  | 45 |  |  | 42 |  |  | 127 |  |  | 121 |
Nonvested restricted shares |  | 296 |  |  | 216 |  |  | 772 |  |  | 598 |
Earnings allocated to common shareholders |  | $ | 25,439 |  |  | $ | 21,325 |  |  | $ | 71,188 |  |  | $ | 61,935 |
Weighted average common shares outstanding |  | 57,051 |  |  | 52,112 |  |  | 57,007 |  |  | 51,772 |
Basic earnings per common share |  | $ | 0.45 |  |  | $ | 0.41 |  |  | $ | 1.25 |  |  | $ | 1.20 |
Diluted EPS: |  |  |  |  |  |  |  |
Earnings allocated to common shareholders (1) |  | $ | 25,439 |  |  | $ | 21,325 |  |  | $ | 71,188 |  |  | $ | 61,940 |
Weighted average common shares outstanding |  | 57,051 |  |  | 52,112 |  |  | 57,007 |  |  | 51,772 |
Dilutive effect of equity awards |  | 13 |  |  | 404 |  |  | 14 |  |  | 707 |
Weighted average diluted common shares outstanding |  | 57,064 |  |  | 52,516 |  |  | 57,021 |  |  | 52,479 |
Diluted earnings per common share |  | $ | 0.45 |  |  | $ | 0.41 |  |  | $ | 1.25 |  |  | $ | 1.18 |
Potentially dilutive share options that were not included in the computation of diluted EPS because to do so would be anti-dilutive |  | 29 |  |  | 58 |  |  | 40 |  |  | 67 |
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(1) | Earnings allocated to common shareholders for basic and diluted EPS may differ under the two-class method as a result of adding common stock equivalents for options and warrants to dilutive shares outstanding, which alters the ratio used to allocate earnings to common shareholders and participating securities for the purposes of calculating diluted EPS.

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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 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=7655603&loc=d3e1278-109256 Reference 2: 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 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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