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Earnings per Share | 12 Months Ended
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Dec. 31, 2015
Earnings Per Share [Abstract] |
Earnings per Share | Earnings per Share The following table summarizes the composition of the weighted-average common shares (denominator) used in the basic and diluted earnings per share computation for the years ending December 31:
| 2015 |  | 2014 |  | 2013
Weighted average common shares issued | 105,563,455 |  |  | 105,563,455 |  |  | 105,563,455 |
Average treasury shares | (16,045,900 | ) |  | (12,294,217 | ) |  | (8,363,083 | )
Average unearned nonvested shares | (160,788 | ) |  | (154,584 | ) |  | (172,215 | )
Weighted average common shares and common stock equivalents used to calculate basic earnings per share | 89,356,767 |  |  | 93,114,654 |  |  | 97,028,157 |
Additional common stock equivalents (nonvested stock) used to calculate diluted earnings per share | — |  |  | — |  |  | 1,675 |
Weighted average common shares and common stock equivalents used to calculate diluted earnings per share | 89,356,767 |  |  | 93,114,654 |  |  | 97,029,832 |
The following table shows the number of shares and the price per share related to common stock equivalents that were not included in the computation of diluted earnings per share for the years ended December 31, because to do so would have been anti-dilutive.
| 12/31/2015 |  | 12/31/2014 |  | 12/31/2013
|  |  | Price Range |  |  |  | Price Range |  |  |  | Price Range
| Shares |  | From |  | To |  | Shares |  | From |  | To |  | Shares |  | From |  | To
Stock Options | — |  |  | $ | — |  |  | $ | — |  |  | 15,000 |  |  | $ | 14.55 |  |  | $ | 14.55 |  |  | 27,000 |  |  | $ | 14.41 |  |  | $ | 14.55 |
Restricted Stock | 92,002 |  |  | 6.82 |  |  | 9.84 |  |  | 106,977 |  |  | 5.26 |  |  | 9.26 |  |  | 81,770 |  |  | 4.41 |  |  | 7.57 |

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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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