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v3.22.1

Share Capital and Capital In Excess of Par Value (Details) - USD ($) shares in Thousands, $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2022 | Mar. 31, 2021
Changes in share capital and capital in excess of par value |  |
Balance at the beginning of the period | $ 768,797 |
Balance at the beginning of the period (in shares) | 96 |
Purchase and retirement of common shares | $ (1,152) | $ (7,423)
Purchase and retirement of common shares (in shares) | (33) | (234)
Balance at the end of the period | $ 769,506 | $ 758,586
Balance at the end of the period (in shares) | 99 | 96
Stock dividends (as a percent) | 3.00% | 3.00%
Treasury Stock |  |
Changes in share capital and capital in excess of par value |  |
Balance at the beginning of the period | $ (1,992) | $ (1,992)
Balance at the beginning of the period (in shares) | 96 | 93
Issuance of 3% stock dividend (in shares) | 3 | 3
Balance at the end of the period | $ (1,992) | $ (1,992)
Balance at the end of the period (in shares) | 99 | 96
Capital in Excess of Par Value |  |
Changes in share capital and capital in excess of par value |  |
Balance at the beginning of the period | $ 709,880 | $ 706,930
Issuance of 3% stock dividend | 41,068 | 32,495
Purchase and retirement of common shares | (1,129) | (7,260)
Balance at the end of the period | 749,819 | 732,165
Class B Common Stock | Common Stock. |  |
Changes in share capital and capital in excess of par value |  |
Balance at the beginning of the period | $ 19,300 | $ 18,758
Balance at the beginning of the period (in shares) | 27,793 | 27,012
Issuance of 3% stock dividend | $ 579 | $ 562
Issuance of 3% stock dividend (in shares) | 833 | 809
Balance at the end of the period | $ 19,879 | $ 19,320
Balance at the end of the period (in shares) | 28,626 | 27,821
Common Stock | Common Stock. |  |
Changes in share capital and capital in excess of par value |  |
Balance at the beginning of the period | $ 27,322 | $ 27,134
Balance at the beginning of the period (in shares) | 39,344 | 39,073
Issuance of 3% stock dividend | $ 817 | $ 808
Issuance of 3% stock dividend (in shares) | 1,176 | 1,163
Purchase and retirement of common shares | $ (23) | $ (163)
Purchase and retirement of common shares (in shares) | (33) | (234)
Balance at the end of the period | $ 28,116 | $ 27,779
Balance at the end of the period (in shares) | 40,487 | 40,002

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