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Changes in Stockholders' Equity (Tables) | 3 Months Ended
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Mar. 31, 2013
Shareholders' Equity [Abstract] |
Schedule of Activity in Shareholders' Equity | The following table summarizes changes in Stockholders' Equity:
(in thousands) |  | Class A Common Stock |  | Class B Common Stock |  | Additional paid in capital |  | Retained earnings |  | Accumulated items of other comprehensive income |  | Treasury stock |  | Total Shareholders' Equity
December 31, 2012 |  | $37 |  |  | $3 |  |  | $395,381 |  |  | $435,775 |  |  | ($80,021 | ) |  | ($257,664 | ) |  | $493,511 |
Net income |  | - |  |  | - |  |  | - |  |  | 11,511 |  |  | - |  |  | - |  |  | 11,511 |
Dividends declared |  | - |  |  | - |  |  | - |  |  | (4,421 | ) |  | - |  |  | - |  |  | (4,421 | )
Compensation and benefits paid or payable in Class A Common Stock |  | - |  |  | - |  |  | (698 | ) |  | - |  |  | - |  |  | - |  |  | (698 | )
Options exercised |  | - |  |  | - |  |  | 2,315 |  |  | - |  |  | - |  |  | - |  |  | 2,315 |
Cumulative translation adjustment |  | - |  |  | - |  |  | - |  |  | - |  |  | (11,288 | ) |  | - |  |  | (11,288 | )
Change in pension liability adjustment |  | - |  |  | - |  |  | - |  |  | - |  |  | 1,169 |  |  | - |  |  | 1,169 |
Change in derivative valuation adjustment |  | - |  |  | - |  |  | - |  |  | - |  |  | 279 |  |  | - |  |  | 279 |
March 31, 2013 |  | $37 |  |  | $3 |  |  | $396,998 |  |  | $442,865 |  |  | ($89,861 | ) |  | ($257,664 | ) |  | $492,378 |

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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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