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Shares (Tables) | 12 Months Ended
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Dec. 31, 2023
Equity [Abstract] |
Schedule of common shares |
|  | Common shares |  | Treasury shares |  | Common shares, net of treasury shares
Issued and outstanding at December 31, 2021 |  | 30,022,928 |  |  | (1,564,813) |  |  | 28,458,115 |
Retired through share purchase program |  | (2,195,646) |  |  | — |  |  | (2,195,646) |
Purchase of treasury shares |  | — |  |  | (26,012) |  |  | (26,012) |
Settlement of certain equity classified stock-based compensation |  | — |  |  | 184,364 |  |  | 184,364 |
Issued and outstanding at December 31, 2022 |  | 27,827,282 |  |  | (1,406,461) |  |  | 26,420,821 |
Purchase of treasury shares |  | — |  |  | (20,955) |  |  | (20,955) |
Settlement of certain equity classified stock-based compensation |  | — |  |  | 337,229 |  |  | 337,229 |
Issued and outstanding at December 31, 2023 |  | 27,827,282 |  |  | (1,090,187) |  |  | 26,737,095 |
Schedule of net income per share |
Year ended December 31, |  | 2023 |  | 2022
Net income |  | $ | 63,141 |  |  | $ | 67,372 |
Interest from convertible debentures (after tax) |  | 5,925 |  |  | 5,893 |
Diluted net income available to common shareholders |  | $ | 69,066 |  |  | $ | 73,265 |
Weighted-average number of common shares |  | 26,566,846 |  |  | 27,406,140 |
Weighted-average effect of dilutive securities |  |  |  |
Dilutive effect of treasury shares |  | 1,260,436 |  |  | 1,485,275 |
Dilutive effect of 5.00% convertible debentures |  | 2,148,438 |  |  | 2,095,236 |
Dilutive effect of 5.50% convertible debentures |  | 3,051,020 |  |  | 3,020,199 |
Weighted-average number of diluted common shares |  | 33,026,740 |  |  | 34,006,850 |
Basic net income per share |  | $ | 2.38 |  |  | $ | 2.46 |
Diluted net income per share |  | $ | 2.09 |  |  | $ | 2.15 |
Schedule of dividends |
|  | Date declared |  | Per share |  | Shareholders on record as of |  | Paid or payable to shareholders |  | Total paid or payable
Q1 2022 |  | February 15, 2022 |  | $ | 0.08 |  |  | March 4, 2022 |  | April 8, 2022 |  | $ | 2,277 |
Q2 2022 |  | April 26, 2022 |  | $ | 0.08 |  |  | May 27, 2022 |  | July 8, 2022 |  | $ | 2,232 |
Q3 2022 |  | July 26, 2022 |  | $ | 0.08 |  |  | August 31, 2022 |  | October 7, 2022 |  | $ | 2,127 |
Q4 2022 |  | October 25, 2022 |  | $ | 0.08 |  |  | November 30, 2022 |  | January 6, 2023 |  | $ | 2,098 |
Q1 2023 |  | February 14, 2023 |  | $ | 0.10 |  |  | March 3, 2023 |  | April 6, 2023 |  | $ | 2,621 |
Q2 2023 |  | April 25, 2023 |  | $ | 0.10 |  |  | May 26, 2023 |  | July 7, 2023 |  | $ | 2,641 |
Q3 2023 |  | July 25, 2023 |  | $ | 0.10 |  |  | August 31, 2023 |  | October 6, 2023 |  | $ | 2,674 |
Q4 2023 |  | October 31, 2023 |  | $ | 0.10 |  |  | November 30, 2023 |  | January 5, 2024 |  | $ | 2,674 |

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 260 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482662/260-10-50-1 + Details
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