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Stockholders' Equity (Tables) | 6 Months Ended
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Jun. 30, 2015
Equity [Abstract] |
Cash Dividends | The Company pai d cash dividends during the six months ended June 30, 2014 and 201 5 as follows:
2014: | Per Share |  |  | Total |
|  |  |  |  | (in thousands) |
Paid on March 27, 2014 | $ | 0.10 |  |  | $ | 14,456 |
Paid on June 26, 2014 |  | 0.10 |  |  |  | 14,562 |
Total cash dividends | $ | 0.20 |  |  | $ | 29,018 |
2015: | Per Share |  |  | Total |
|  |  |  |  | (in thousands) |
Paid on March 25, 2015 | $ | 0.10 |  |  | $ | 14,640 |
Paid on June 24, 2015 |  | 0.10 |  |  |  | 14,712 |
Total cash dividends | $ | 0.20 |  |  | $ | 29,352 |
Treasury Stock Acquisition | Treasury stock acquisitions during the six months ended June 30, 2015 were as follows (dollars in thousands):
| June 30, 2015 |
| Shares |  |  | Cost |
Treasury shares at beginning of period |  | 42,818,585 |  |  | $ | 899,035 |
Acquisitions pursuant to long-term incentive plans |  | 380,037 |  |  |  | 7,830 |
Purchases pursuant to the 2013 buyback program |  | 8,618 |  |  |  | 180 |
Treasury shares at end of period |  | 43,207,240 |  |  | $ | 907,045 |

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- Definition Tabular disclosure of treasury stock, including, but not limited to, average cost per share, description of share repurchase program, shares repurchased, shares held for each class of treasury stock. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6405834&loc=d3e23315-112656 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6405834&loc=d3e23285-112656 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6405813&loc=d3e23239-112655 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6405834&loc=d3e23309-112656 + Details
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