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Net Income Attributable to Shareholders of Crawford & Company per Common Share - Schedule of Shares Issued and Included in Weighted-average Common Shares used to Compute Basic and Diluted Earnings per Share (Details) - Class A Non-Voting - shares shares in Thousands | 3 Months Ended
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Mar. 31, 2022 | Mar. 31, 2021
CRD-A Issued under the Non-Employee Director Stock Plan |  |
Share-based Compensation Arrangement |  |
Shares issued repurchased activity | 94 | 92
CRD-A Issued under the U.K. ShareSave Scheme |  |
Share-based Compensation Arrangement |  |
Shares issued repurchased activity | 0 | 1
Employee Stock Purchase Plan |  |
Share-based Compensation Arrangement |  |
Shares issued repurchased activity | (6) | 0

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- Definition Shares issued repurchased activity. + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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