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Earnings Per Share | 9 Months Ended
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Sep. 30, 2013
Earnings Per Share [Abstract] |
Earnings Per Share | Earnings Per Common Share. Basic and diluted earnings per common share were calculated as follows (in thousands, except per share data):
| Three Months Ended September 30, 2013
| Net Earnings |  | Weighted Average Shares |  | Per Share
Basic earnings per common share | $ | 27,622 |  |  | 53,438 |  |  | $ | 0.52 |
Effect of dilutive stock awards | — |  |  | 374 |  |  |
Diluted earnings per common share | $ | 27,622 |  |  | 53,812 |  |  | $ | 0.51 |
| Three Months Ended September 30, 2012
| Net Earnings |  | Weighted Average Shares |  | Per Share
Basic earnings per common share | $ | 39,910 |  |  | 58,882 |  |  | $ | 0.68 |
Effect of dilutive stock awards | — |  |  | 430 |  |  |
Diluted earnings per common share | $ | 39,910 |  |  | 59,312 |  |  | $ | 0.67 |
| Nine Months Ended September 30, 2013
| Net Earnings |  | Weighted Average Shares |  | Per Share
Basic earnings per common share | $ | 116,083 |  |  | 55,423 |  |  | $ | 2.09 |
Effect of dilutive stock awards | — |  |  | 377 |  |  |
Diluted earnings per common share | $ | 116,083 |  |  | 55,800 |  |  | $ | 2.08 |
| Nine Months Ended September 30, 2012
| Net Earnings |  | Weighted Average Shares |  | Per Share
Basic earnings per common share | $ | 136,033 |  |  | 59,098 |  |  | $ | 2.30 |
Effect of dilutive stock awards | — |  |  | 511 |  |  |
Diluted earnings per common share | $ | 136,033 |  |  | 59,609 |  |  | $ | 2.28 |
For the three-month periods ended September 30, 2013 and 2012, the number of anti-dilutive stock awards that were outstanding but not included in the computation of diluted earnings per common share were 1,183,826 and 691,491, respectively. For the nine-month periods ended September 30, 2013 and 2012, the number of anti-dilutive stock awards that were outstanding but not included in the computation of diluted earnings per common share were 1,340,372 and 1,059,078, respectively.

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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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