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Earnings Per Share | 6 Months Ended
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Jun. 30, 2014
Earnings Per Share [Abstract] |
Earnings Per Share | Earnings Per Share The following table sets forth the computation of earnings per common share and earnings per common share - assuming dilution:
| Three Months Ended June 30, |  | Six Months Ended June 30,
| 2014 |  | 2013 |  | 2014 |  | 2013
| (Dollars in thousands, except per share data)
Numerator: |  |  |  |  |  |  |
Net income - numerator for earnings per common share | $ | 36,744 |  |  | $ | 120,113 |  |  | $ | 26,991 |  |  | $ | 146,144 |
Denominator: |  |  |  |  |  |  |
Weighted average common shares outstanding (1) | 74,461,264 |  |  | 64,254,387 |  |  | 73,495,286 |  |  | 63,786,577 |
Effect of dilutive securities: |  |  |  |  |  |  |
Convertible senior notes | 2,259,425 |  |  | 5,009,622 |  |  | 2,843,987 |  |  | 5,082,208 |
2015 warrants | 1,595,519 |  |  | — |  |  | 1,981,815 |  |  | — |
Stock options and deferred compensation agreements | 1,154,726 |  |  | 1,118,056 |  |  | 1,220,996 |  |  | 1,013,455 |
Restricted stock units | 46,870 |  |  | — |  |  | 40,679 |  |  | — |
Denominator for earnings per common share - assuming dilution | 79,517,804 |  |  | 70,382,065 |  |  | 79,582,763 |  |  | 69,882,240 |
Earnings per common share | $ | 0.49 |  |  | $ | 1.87 |  |  | $ | 0.37 |  |  | $ | 2.29 |
Earnings per common share - assuming dilution | $ | 0.46 |  |  | $ | 1.71 |  |  | $ | 0.34 |  |  | $ | 2.09 |
(1) | Weighted average common shares outstanding include shares vested under the NMO Deferred Compensation Plan and exclude unallocated shares held by the ESOP.
Options to purchase shares of our common stock that were outstanding during the respective periods indicated but were not included in the computation of diluted earnings per share because the options' exercise price was greater than the average market price of the common shares are as follows:
Period |  | Number of Shares |  | Range of Exercise Prices
|  |  |  | Minimum |  | Maximum
Three months ended June 30, 2014 |  | 1,277,650 |  | $24.79 |  | $24.79
Three months ended June 30, 2013 |  | — |  | $— |  | $—
Six months ended June 30, 2014 |  | 1,277,650 |  | $24.79 |  | $24.79
Six months ended June 30, 2013 |  | — |  | $— |  | $—

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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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