Revenue Recognition - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Disaggregation of Revenue [Line Items]
Revenues	$ 261,669	$ 265,842	$ 750,590	$ 790,065
Crawford Claims Solutions
Disaggregation of Revenue [Line Items]
Revenues	98,369	86,250	257,407	255,572
Crawford Claims Solutions \| U.S.
Disaggregation of Revenue [Line Items]
Revenues	51,716	35,982	117,488	103,743
Crawford Claims Solutions \| U.K.
Disaggregation of Revenue [Line Items]
Revenues	15,394	15,123	47,033	47,325
Crawford Claims Solutions \| Australia
Disaggregation of Revenue [Line Items]
Revenues	13,066	11,886	35,211	35,220
Crawford Claims Solutions \| Canada
Disaggregation of Revenue [Line Items]
Revenues	8,272	12,008	26,382	36,276
Crawford Claims Solutions \| Europe
Disaggregation of Revenue [Line Items]
Revenues	6,537	7,429	20,734	21,265
Crawford Claims Solutions \| Rest of World
Disaggregation of Revenue [Line Items]
Revenues	3,384	3,822	10,559	11,743
Crawford TPA Solutions
Disaggregation of Revenue [Line Items]
Revenues	87,210	99,495	270,870	296,807
Crawford TPA Solutions \| U.S.
Disaggregation of Revenue [Line Items]
Revenues	70,726	80,376	217,992	237,391
Crawford TPA Solutions \| U.K.
Disaggregation of Revenue [Line Items]
Revenues	2,522	2,730	8,150	8,243
Crawford TPA Solutions \| Canada
Disaggregation of Revenue [Line Items]
Revenues	6,415	8,210	19,924	25,466
Crawford TPA Solutions \| Europe and Rest of World
Disaggregation of Revenue [Line Items]
Revenues	7,547	8,179	24,804	25,707
Crawford TPA Solutions \| Claims Management Services
Disaggregation of Revenue [Line Items]
Revenues	51,617	56,471	158,633	169,116
Crawford TPA Solutions \| Claims Management Services \| U.S.
Disaggregation of Revenue [Line Items]
Revenues	35,133	37,352	105,755	109,700
Crawford TPA Solutions \| Claims Management Services \| U.K.
Disaggregation of Revenue [Line Items]
Revenues	2,522	2,730	8,150	8,243
Crawford TPA Solutions \| Claims Management Services \| Canada
Disaggregation of Revenue [Line Items]
Revenues	6,415	8,210	19,924	25,466
Crawford TPA Solutions \| Claims Management Services \| Europe and Rest of World
Disaggregation of Revenue [Line Items]
Revenues	7,547	8,179	24,804	25,707
Crawford TPA Solutions \| Medical Management Services
Disaggregation of Revenue [Line Items]
Revenues	35,593	43,024	112,237	127,691
Crawford TPA Solutions \| Medical Management Services \| U.S.
Disaggregation of Revenue [Line Items]
Revenues	35,593	43,024	112,237	127,691
Crawford TPA Solutions \| Medical Management Services \| U.K.
Disaggregation of Revenue [Line Items]
Revenues	0	0	0	0
Crawford TPA Solutions \| Medical Management Services \| Canada
Disaggregation of Revenue [Line Items]
Revenues	0	0	0	0
Crawford TPA Solutions \| Medical Management Services \| Europe and Rest of World
Disaggregation of Revenue [Line Items]
Revenues	0	0	0	0
Crawford Specialty Solutions
Disaggregation of Revenue [Line Items]
Revenues	67,545	68,932	196,794	206,237
Crawford Specialty Solutions \| U.S.
Disaggregation of Revenue [Line Items]
Revenues	30,285	29,819	83,582	91,158
Crawford Specialty Solutions \| U.K.
Disaggregation of Revenue [Line Items]
Revenues	12,144	12,991	39,819	38,399
Crawford Specialty Solutions \| Australia
Disaggregation of Revenue [Line Items]
Revenues	6,122	6,157	17,030	17,489
Crawford Specialty Solutions \| Canada
Disaggregation of Revenue [Line Items]
Revenues	7,580	8,132	22,033	25,295
Crawford Specialty Solutions \| Europe
Disaggregation of Revenue [Line Items]
Revenues	5,099	5,143	15,378	14,796
Crawford Specialty Solutions \| Rest of World
Disaggregation of Revenue [Line Items]
Revenues	6,315	6,690	18,952	19,100
Crawford Specialty Solutions \| Global Technical Services
Disaggregation of Revenue [Line Items]
Revenues	44,002	45,990	133,380	135,628
Crawford Specialty Solutions \| Global Technical Services \| U.S.
Disaggregation of Revenue [Line Items]
Revenues	10,210	10,202	30,311	30,888
Crawford Specialty Solutions \| Global Technical Services \| U.K.
Disaggregation of Revenue [Line Items]
Revenues	10,805	11,728	34,835	34,444
Crawford Specialty Solutions \| Global Technical Services \| Australia
Disaggregation of Revenue [Line Items]
Revenues	5,789	5,935	16,379	16,881
Crawford Specialty Solutions \| Global Technical Services \| Canada
Disaggregation of Revenue [Line Items]
Revenues	5,793	6,294	17,549	19,522
Crawford Specialty Solutions \| Global Technical Services \| Europe
Disaggregation of Revenue [Line Items]
Revenues	5,090	5,141	15,354	14,793
Crawford Specialty Solutions \| Global Technical Services \| Rest of World
Disaggregation of Revenue [Line Items]
Revenues	6,315	6,690	18,952	19,100
Crawford Specialty Solutions \| Contractor Connection
Disaggregation of Revenue [Line Items]
Revenues	23,543	22,942	63,414	70,609
Crawford Specialty Solutions \| Contractor Connection \| U.S.
Disaggregation of Revenue [Line Items]
Revenues	20,075	19,617	53,271	60,270
Crawford Specialty Solutions \| Contractor Connection \| U.K.
Disaggregation of Revenue [Line Items]
Revenues	1,339	1,263	4,984	3,955
Crawford Specialty Solutions \| Contractor Connection \| Australia
Disaggregation of Revenue [Line Items]
Revenues	333	222	651	608
Crawford Specialty Solutions \| Contractor Connection \| Canada
Disaggregation of Revenue [Line Items]
Revenues	1,787	1,838	4,484	5,773
Crawford Specialty Solutions \| Contractor Connection \| Europe
Disaggregation of Revenue [Line Items]
Revenues	9	2	24	3
Crawford Specialty Solutions \| Contractor Connection \| Rest of World
Disaggregation of Revenue [Line Items]
Revenues	$ 0	$ 0	$ 0	$ 0