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v3.22.1

Changes in Shareholders' Equity (Schedule of Activity in Shareholders' Equity) (Details) - USD ($) $ / shares in Units, $ in Thousands | 1 Months Ended | 3 Months Ended | 12 Months Ended
--- | --- | --- | ---
Oct. 31, 2021 | Mar. 31, 2022 | Mar. 31, 2021 | Dec. 31, 2021
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |
Balance at beginning of the period |  | $ 877,605 | $ 819,865 | $ 819,865
Net income |  | 28,075 | 27,609 |
Compensation and benefits paid or payable in shares |  | 745 | (13) |
Options exercised |  | 7 | 128 |
Shares issued to Directors' |  | 0 | 0 |
Purchase of Treasury shares |  | (43,937) |  |
Cumulative translation adjustments |  | (1,674) | (16,165) |
Pension and postretirement liability adjustments |  | 74 | 509 |
Derivative valuation adjustment |  | 10,018 | 752 |
Balance at end of the period |  | $ 864,252 | $ 826,211 | $ 877,605
Dividends declared per share, Class A and Class B (in dollars per share) |  | $ 0.21 | $ 0.20 |
Common Class A |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |
Dividends declared |  | $ (6,661) | $ (6,150) |
Dividends declared per share, Class A and Class B (in dollars per share) |  | $ 0.21 | $ 0.20 |
Common Class B |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |
Balance at the beginning of the period (in shares) |  | 104 |  |
Dividends declared |  | $ 0 | $ (324) |
Balance at the end of the period (in shares) |  | 0 |  | 104
Dividends declared per share, Class A and Class B (in dollars per share) |  | $ 0.21 | $ 0.20 |
Common Stock | Common Class A |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |
Balance at the beginning of the period (in shares) |  | 40,760,000 | 39,115,000 | 39,115,000
Balance at beginning of the period |  | $ 41 | $ 39 | $ 39
Compensation and benefits paid or payable in shares (in shares) |  | 21,000 | 20,000 |
Options exercised (in shares) |  | 0 |  |
Balance at the end of the period (in shares) |  | 40,781,000 | 39,141,000 | 40,760,000
Balance at end of the period |  | $ 41 | $ 39 | $ 41
Common Stock | Common Class B |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |
Balance at the beginning of the period (in shares) |  | 0 | 1,618,000 | 1,618,000
Balance at beginning of the period |  | $ 0 | $ 2 | $ 2
Balance at the end of the period (in shares) |  | 0 | 1,618,000 | 0
Balance at end of the period |  | $ 0 | $ 2 | $ 0
Additional paid-in capital |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |
Balance at beginning of the period |  | 436,996 | 433,696 | 433,696
Compensation and benefits paid or payable in shares |  | 745 | (13) |
Options exercised |  | 7 | 128 |
Balance at end of the period |  | 437,748 | 433,811 | 436,996
Retained earnings |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |
Balance at beginning of the period |  | 863,057 | 770,746 | 770,746
Net income |  | 27,737 | 27,582 |
Balance at end of the period |  | 884,133 | 791,854 | 863,057
Retained earnings | Common Class A |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |
Dividends declared |  | (6,661) | (6,150) |
Retained earnings | Common Class B |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |
Dividends declared |  | 0 | (324) |
Accumulated items of other comprehensive income |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |
Balance at beginning of the period |  | (145,984) | (132,408) | (132,408)
Cumulative translation adjustments |  | (1,730) | (15,955) |
Pension and postretirement liability adjustments |  | 74 | 509 |
Derivative valuation adjustment |  | 10,018 | 752 |
Balance at end of the period |  | $ (137,622) | $ (147,102) | $ (145,984)
Treasury Stock |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |
Balance at the beginning of the period (in shares) |  | 8,665,000 | 8,391,000 | 8,391,000
Balance at beginning of the period |  | $ (280,143) | $ (256,009) | $ (256,009)
Purchase of Treasury shares (in shares) |  | 514,686 |  | 285,286
Purchase of Treasury shares | $ 200,000 | $ (43,937) |  | $ (24,400)
Balance at the end of the period (in shares) |  | 9,180,000 | 8,391,000 | 8,665,000
Balance at end of the period |  | $ (324,080) | $ (256,009) | $ (280,143)
Noncontrolling Interest |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |
Balance at beginning of the period |  | 3,638 | 3,799 | 3,799
Net income |  | 338 | 27 |
Cumulative translation adjustments |  | 56 | (210) |
Balance at end of the period |  | $ 4,032 | $ 3,616 | $ 3,638

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