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Changes in Shareholders' Equity (Tables) | 9 Months Ended
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Sep. 30, 2015
Equity [Abstract] |
Changes in the Components of Shareholders' Equity | Changes in the components of shareholders’ equity for the nine months ended September 30, 2015 were as follows:
|  | Issued Common Shares |  |  | Treasury Shares |  |  | Common Stock |  |  | Additional Paid-In Capital |  |  | Retained Earnings |  |  | Treasury Stock |  |  | Accumulated Other Comprehensive Loss |  |  | Totals |
December 31, 2014 |  |  | 118,820 |  |  |  | 69,333 |  |  | $ | 1,188 |  |  | $ | 604,284 |  |  | $ | 220,753 |  |  | $ | (425,685 | ) |  | $ | (695 | ) |  | $ | 399,845 |
Net income |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 36,013 |  |  |  | — |  |  |  | — |  |  |  | 36,013 |
Other comprehensive income |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 62 |  |  |  | 62 |
Share repurchases |  |  | — |  |  |  | 3,895 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (36,482 | ) |  |  | — |  |  |  | (36,482 | )
Restricted stock |  |  | 360 |  |  |  | — |  |  |  | 4 |  |  |  | (4 | ) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Stock options exercised |  |  | 935 |  |  |  | — |  |  |  | 9 |  |  |  | 6,555 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 6,564 |
Share-based compensation |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 4,319 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 4,319 |
Tax effect from employee share plans |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 369 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 369 |
Convertible bond retirement |  |  | 5,069 |  |  |  | — |  |  |  | 51 |  |  |  | 32,840 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 32,891 |
Business acquisitions |  |  | 214 |  |  |  | — |  |  |  | 2 |  |  |  | 1,974 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 1,976 |
September 30, 2015 |  |  | 125,398 |  |  |  | 73,228 |  |  | $ | 1,254 |  |  | $ | 650,337 |  |  | $ | 256,766 |  |  | $ | (462,167 | ) |  | $ | (633 | ) |  | $ | 445,557 |

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- Definition Tabular disclosure of changes in the separate accounts comprising stockholders' equity (in addition to retained earnings) and of the changes in the number of shares of equity securities during at least the most recent annual fiscal period and any subsequent interim period presented is required to make the financial statements sufficiently informative if both financial position and results of operations are presented. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 + Details
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