Net Income Attributable to Shareholders of Crawford & Company per Common Share - Schedule of Computations of Basic Net Income Attributable to Shareholders of Crawford & Company per Common Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Class A Non-Voting
Numerator:
Allocation of undistributed earnings	$ 3,657	$ 5,288	$ 6,388	$ 13,143
Dividends paid	2,091	2,041	6,246	5,513
Net income attributable to common shareholders, basic	$ 5,748	$ 7,329	$ 12,634	$ 18,656
Denominator:
Weighted-average common shares outstanding, basic	29,880	29,140	29,732	28,980
Earnings per share - basic	$ 0.19	$ 0.25	$ 0.42	$ 0.64
Class B Voting
Numerator:
Allocation of undistributed earnings	$ 2,356	$ 3,601	$ 4,166	$ 9,000
Dividends paid	1,349	1,389	4,074	3,771
Net income attributable to common shareholders, basic	$ 3,705	$ 4,990	$ 8,240	$ 12,771
Denominator:
Weighted-average common shares outstanding, basic	19,255	19,837	19,390	19,845
Earnings per share - basic	$ 0.19	$ 0.25	$ 0.42	$ 0.64