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Shareholders' Equity (Tables) | 12 Months Ended
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Dec. 31, 2012
Shareholders' Equity [Abstract] |
Schedule of Activity in Shareholders' Equity |
|  |  |  |  | Accumulated items of other comprehensive income Amount |  |
| Class A | Class B | Additional paid-in capital Amount | Retained earnings Amount | Treasury Stock
| Common Stock | Common Stock | Class A
(in thousands) | Shares | Amount | Shares | Amount | Shares | Amount
Balance: January 1, 2010 | 36,149 | 36 | 3,236 | 3 | 382,674 | 380,335 | (82,136) | 8,497 | (258,299)
Compensation and benefits paid or payable in shares | 286 | - | - | - | 4,659 | - | - | - | -
Options exercised | 7 | - | - | - | 576 | - | - | - |
Shares issued to Directors | - | - | - | - | (33) | - | - | (12) | 268
Net income | - | - | - | - | - | 37,636 | - | - | -
Dividends declared | - | - | - | - | - | (14,923) | - | - | -
Cumulative translation adjustments | - | - | - | - | - | - | (10,208) | - | -
Pension and postretirement liability adjustments | - | - | - | - | - | - | (14,052) | - | -
Derivative valuation adjustment | - | - | - | - | - | - | (276) | - | -
Balance: December 31, 2010 | 36,442 | $36 | 3,236 | $3 | $387,876 | $403,048 | ($106,672) | 8,485 | ($258,031)
Compensation and benefits paid or payable in shares | 57 | 1 | - | - | 2,712 | - | - | - | -
Options exercised | 42 | - | - | - | 883 | - | - | - |
Shares issued to Directors | - | - | - | - | 24 | - | - | (5) | 111
Net income | - | - | - | - | - | 34,938 | - | - | -
Dividends declared | - | - | - | - | - | (15,942) | - | - | -
Cumulative translation adjustments | - | - | - | - | - | - | (13,070) | - | -
Pension and postretirement liability adjustments | - | - | - | - | - | - | (17,749) | - | -
Derivative valuation adjustment | - | - | - | - | - | - | (2,318) | - | -
Balance: December 31, 2011 | 36,541 | $37 | 3,236 | $3 | $391,495 | $422,044 | ($139,809) | 8,480 | ($257,920)
Compensation and benefits paid or payable in shares | 34 | - | - | - | 2,573 | - | - | - | -
Options exercised | 67 | - | - | - | 1,352 | - | - | - |
Shares issued to Directors | - | - | - | - | (39) | - | - | (12) | 256
Net income | - | - | - | - | - | 30,977 | - | - | -
Dividends declared | - | - | - | - | - | (17,246) | - | - | -
Cumulative translation adjustments | - | - | - | - | - | - | 11,452 | - | -
Settlement of certain pension plan liabilities | - | - | - | - | - | - | 79,204 | - | -
Pension and postretirement liability adjustments | - | - | - | - | - | - | (30,584) | - | -
Derivative valuation adjustment | - | - | - | - | - | - | (284) | - | -
Balance: December 31, 2012 | 36,642 | $37 | 3,236 | $3 | $ 395,381 | $435,775 | ($80,021) | 8,468 | ($257,664)

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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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