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Net Income (Loss) Attributable to Shareholders of Crawford & Company per Common Share - Additional Information (Details) - $ / shares | 3 Months Ended |
--- | --- | ---
Mar. 31, 2021 | Mar. 31, 2020 | May 09, 2019
Class A Non-Voting |  |  |
Equity, Class of Treasury Stock |  |  |
Shares repurchased (shares) | 90,062 | 155,351 |
Average cost (USD per share) | $ 8.05 | $ 8.42 |
Class B Voting |  |  |
Equity, Class of Treasury Stock |  |  |
Shares repurchased (shares) | 58,837 | 161,459 |
Average cost (USD per share) | $ 7.90 | $ 8.42 |
Repurchase Authorization 2019 | Common Stock |  |  |
Equity, Class of Treasury Stock |  |  |
Number of shares authorized to be repurchased (shares) |  |  | 2,000,000
Number of shares remaining to be repurchased (shares) | 493,198 |  |

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