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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 basic and diluted income per common share for the periods presented (dollars and shares in thousands, except per share data).
| Three Months Ended June 30 |  | Six Months Ended June 30
| 2014 |  | 2013 |  | 2014 |  | 2013
Numerator: |  |  |  |  |  |  |
Net income | $ | 99,557 |  |  | $ | 66,252 |  |  | $ | 189,643 |  |  | $ | 128,546 |
Less: distributed and undistributed earnings allocated to participating securities | (1,514 | ) |  | — |  |  | (2,918 | ) |  | — |
Net income attributable to common shareholders | $ | 98,043 |  |  | $ | 66,252 |  |  | $ | 186,725 |  |  | $ | 128,546 |
Denominator: |  |  |  |  |  |  |
Weighted average basic common shares outstanding | 96,906 |  |  | 96,432 |  |  | 96,847 |  |  | 96,424 |
Effect of dilutive securities | 8 |  |  | 1,062 |  |  | 34 |  |  | 1,037 |
Diluted common shares outstanding | 96,914 |  |  | 97,494 |  |  | 96,881 |  |  | 97,461 |
Basic income per common share | $ | 1.01 |  |  | $ | 0.69 |  |  | $ | 1.93 |  |  | $ | 1.33 |
Diluted income per common share | $ | 1.01 |  |  | $ | 0.68 |  |  | $ | 1.93 |  |  | $ | 1.32 |
During the three and six months ended June 30, 2014 and 2013, all outstanding options to purchase shares were included in the computation of diluted common shares outstanding. At June 29, 2014, all remaining options to purchase shares expired.

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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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