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Changes in Equity and Comprehensive Income (Tables) | 3 Months Ended
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Mar. 31, 2013
Summary Of Changes In Equity | A summary of the changes in equity for the three months ended March 31, 2013 and 2012 is provided below:
| Three Months Ended March 31,
| 2013 |  | 2012
(in thousands) | Total Shareholders’ Equity |  | Noncontrolling Interests |  | Total Equity |  | Total Shareholders’ Equity |  | Noncontrolling Interests |  | Total Equity
Balance, beginning of period | $ | 918,383 |  |  | $ | 8,993 |  |  | $ | 927,376 |  |  | $ | 813,553 |  |  | $ | 8,503 |  |  | $ | 822,056 |
Dividends | (16,144 | ) |  | — |  |  | (16,144 | ) |  | (15,090 | ) |  | — |  |  | (15,090 | )
Reacquisition on open market | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
Exercise of stock options, net of shares reacquired | 13,609 |  |  | — |  |  | 13,609 |  |  | 7,323 |  |  | — |  |  | 7,323 |
Stock compensation expense | 5,379 |  |  | — |  |  | 5,379 |  |  | 4,007 |  |  | — |  |  | 4,007 |
Excess tax benefit from stock based compensation | 2,928 |  |  | — |  |  | 2,928 |  |  | 2,947 |  |  | — |  |  | 2,947 |
Net income | 57,791 |  |  | 151 |  |  | 57,942 |  |  | 51,662 |  |  | 134 |  |  | 51,796 |
Other comprehensive income (loss) | (17,807 | ) |  | 10 |  |  | (17,797 | ) |  | 22,791 |  |  | 26 |  |  | 22,817 |
Comprehensive income | 39,984 |  |  | 161 |  |  | 40,145 |  |  | 74,453 |  |  | 160 |  |  | 74,613 |
Balance, end of period | $ | 964,139 |  |  | $ | 9,154 |  |  | $ | 973,293 |  |  | $ | 887,193 |  |  | $ | 8,663 |  |  | $ | 895,856 |
Classification Of Accumulated Other Comprehensive Income Reflected On Consolidated Balance Sheets | The table below provides the accumulated balances for each classification of accumulated other comprehensive income (loss), as reflected on the Condensed Consolidated Balance Sheets.
|  | Defined Benefit Pension and Other Postretirement Items* |  | Currency Translation Adjustment |  | Total
Balance as of December 31, 2012 | $ | (197,806 | ) |  | $ | 69,729 |  |  | $ | (128,077 | )
| Other comprehensive income before reclassifications | — |  |  | (19,910 | ) |  | (19,910 | )
| Amounts reclassified from accumulated other comprehensive income | 2,104 |  |  | — |  |  | 2,104 |
Net current-period other comprehensive income (loss) | 2,104 |  |  | (19,910 | ) |  | (17,806 | )
Balance as of March 31, 2013 | $ | (195,702 | ) |  | $ | 49,819 |  |  | $ | (145,883 | )
* Net of tax benefit of $88,580 and $89,540 for March 31, 2013 and December 31, 2012, respectively.

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- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=20435746&loc=SL7669686-108580 + Details
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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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