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Common Stock and Stock-Based Awards - Dividends and Share Repurchase Authorization (Narrative) (Details) - USD ($) $ / shares in Units, $ in Thousands |  |  | 12 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
Jan. 12, 2024 | Dec. 13, 2023 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021 | Feb. 19, 2020 | Oct. 26, 2018 | Mar. 06, 2018 | Dec. 07, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |
Dividends paid |  |  | $ 23,455 | $ 23,156 | $ 23,260 |  |  |  |
Quarterly cash dividend declared |  | $ 0.165 |  |  |  |  |  |  |
Dividends payable, date of record |  | Dec. 29, 2023 |  |  |  |  |  |  |
Repurchase of common shares remaining authorized amount |  |  | $ 154,600 |  |  |  |  |  |
Repurchase of common Shares |  |  | 0 | 400,000 | 1,400,000 |  |  |  |
Repurchase of common shares, value |  |  |  | $ 9,400 | $ 40,200 |  |  |  |
Repurchase of common shares, average cost per share |  |  |  | $ 24.96 | $ 29.11 |  |  |  |
Quarterly Dividend Rate Q1 2018 Through January 2020 [Member] |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |
Quarterly cash dividend declared |  |  | $ 0.15 |  |  |  |  |  |
Quarterly Dividend Rate February 2020 Through April 2020 [Member] |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |
Quarterly cash dividend declared |  |  | 0.16 |  |  |  |  |  |
Quarterly Dividend Rate Since May 2021 [Member] |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |
Quarterly cash dividend declared |  |  | $ 0.165 |  |  |  |  |  |
Subsequent Event [Member] |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |
Dividends paid | $ 5,900 |  |  |  |  |  |  |  |
Maximum [Member] |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |
Repurchase of common shares program authorized amount |  |  |  |  |  | $ 150,000 | $ 100,000 | $ 250,000 | $ 100,000

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