Revenue Recognition - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Disaggregation of Revenue [Line Items]
Revenues	$ 242,875	$ 267,846	$ 488,921	$ 524,223
Crawford Claims Solutions
Disaggregation of Revenue [Line Items]
Revenues	81,451	86,003	159,038	169,322
Crawford Claims Solutions \| U.S.
Disaggregation of Revenue [Line Items]
Revenues	34,344	33,825	65,772	67,761
Crawford Claims Solutions \| U.K.
Disaggregation of Revenue [Line Items]
Revenues	16,294	15,831	31,639	32,202
Crawford Claims Solutions \| Canada
Disaggregation of Revenue [Line Items]
Revenues	7,971	12,147	18,110	24,268
Crawford Claims Solutions \| Australia
Disaggregation of Revenue [Line Items]
Revenues	12,200	12,815	22,145	23,334
Crawford Claims Solutions \| Europe
Disaggregation of Revenue [Line Items]
Revenues	7,236	7,371	14,197	13,836
Crawford Claims Solutions \| Rest of World
Disaggregation of Revenue [Line Items]
Revenues	3,406	4,014	7,175	7,921
Crawford TPA Solutions
Disaggregation of Revenue [Line Items]
Revenues	86,725	99,518	183,660	197,312
Crawford TPA Solutions \| U.S.
Disaggregation of Revenue [Line Items]
Revenues	69,173	79,819	147,266	157,015
Crawford TPA Solutions \| U.K.
Disaggregation of Revenue [Line Items]
Revenues	2,763	2,983	5,628	5,513
Crawford TPA Solutions \| Canada
Disaggregation of Revenue [Line Items]
Revenues	6,047	7,884	13,509	17,256
Crawford TPA Solutions \| Europe and Rest of World
Disaggregation of Revenue [Line Items]
Revenues	8,742	8,832	17,257	17,528
Crawford TPA Solutions \| Claims Management Services
Disaggregation of Revenue [Line Items]
Revenues	52,150	55,734	107,016	112,645
Crawford TPA Solutions \| Claims Management Services \| U.S.
Disaggregation of Revenue [Line Items]
Revenues	34,598	36,035	70,622	72,348
Crawford TPA Solutions \| Claims Management Services \| U.K.
Disaggregation of Revenue [Line Items]
Revenues	2,763	2,983	5,628	5,513
Crawford TPA Solutions \| Claims Management Services \| Canada
Disaggregation of Revenue [Line Items]
Revenues	6,047	7,884	13,509	17,256
Crawford TPA Solutions \| Claims Management Services \| Europe and Rest of World
Disaggregation of Revenue [Line Items]
Revenues	8,742	8,832	17,257	17,528
Crawford TPA Solutions \| Medical Management Services
Disaggregation of Revenue [Line Items]
Revenues	34,575	43,784	76,644	84,667
Crawford TPA Solutions \| Medical Management Services \| U.S.
Disaggregation of Revenue [Line Items]
Revenues	34,575	43,784	76,644	84,667
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	66,240	71,360	129,249	137,305
Crawford Specialty Solutions \| U.S.
Disaggregation of Revenue [Line Items]
Revenues	28,371	32,881	53,297	61,339
Crawford Specialty Solutions \| U.K.
Disaggregation of Revenue [Line Items]
Revenues	13,504	12,720	27,678	25,408
Crawford Specialty Solutions \| Canada
Disaggregation of Revenue [Line Items]
Revenues	6,835	8,772	14,453	17,163
Crawford Specialty Solutions \| Australia
Disaggregation of Revenue [Line Items]
Revenues	5,930	6,015	10,908	11,332
Crawford Specialty Solutions \| Europe
Disaggregation of Revenue [Line Items]
Revenues	5,121	4,894	10,279	9,653
Crawford Specialty Solutions \| Rest of World
Disaggregation of Revenue [Line Items]
Revenues	6,479	6,078	12,634	12,410
Crawford Specialty Solutions \| Global Technical Services
Disaggregation of Revenue [Line Items]
Revenues	45,470	45,265	89,378	89,638
Crawford Specialty Solutions \| Global Technical Services \| U.S.
Disaggregation of Revenue [Line Items]
Revenues	10,502	10,414	20,101	20,685
Crawford Specialty Solutions \| Global Technical Services \| U.K.
Disaggregation of Revenue [Line Items]
Revenues	12,016	11,561	24,033	22,718
Crawford Specialty Solutions \| Global Technical Services \| Canada
Disaggregation of Revenue [Line Items]
Revenues	5,619	6,517	11,756	13,228
Crawford Specialty Solutions \| Global Technical Services \| Australia
Disaggregation of Revenue [Line Items]
Revenues	5,742	5,802	10,590	10,945
Crawford Specialty Solutions \| Global Technical Services \| Europe
Disaggregation of Revenue [Line Items]
Revenues	5,112	4,893	10,264	9,652
Crawford Specialty Solutions \| Global Technical Services \| Rest of World
Disaggregation of Revenue [Line Items]
Revenues	6,479	6,078	12,634	12,410
Crawford Specialty Solutions \| Contractor Connection
Disaggregation of Revenue [Line Items]
Revenues	20,770	26,095	39,871	47,667
Crawford Specialty Solutions \| Contractor Connection \| U.S.
Disaggregation of Revenue [Line Items]
Revenues	17,869	22,467	33,196	40,654
Crawford Specialty Solutions \| Contractor Connection \| U.K.
Disaggregation of Revenue [Line Items]
Revenues	1,488	1,159	3,645	2,690
Crawford Specialty Solutions \| Contractor Connection \| Canada
Disaggregation of Revenue [Line Items]
Revenues	1,216	2,255	2,697	3,935
Crawford Specialty Solutions \| Contractor Connection \| Australia
Disaggregation of Revenue [Line Items]
Revenues	188	213	318	387
Crawford Specialty Solutions \| Contractor Connection \| Europe
Disaggregation of Revenue [Line Items]
Revenues	9	1	15	1
Crawford Specialty Solutions \| Contractor Connection \| Rest of World
Disaggregation of Revenue [Line Items]
Revenues	$ 0	$ 0	$ 0	$ 0