Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Statement of Comprehensive Income [Abstract]
Net Income	$ 9,526	$ 25,589	$ 27,223
Other Comprehensive Income (Loss):
Net foreign currency translation (loss) gain, net of tax benefit of $0, $0 and $0, respectively	(180)	(10,830)	6,323
Amounts reclassified into net income for defined benefit pension plans, net of tax provision of $2,682, $2,686 and $3,432, respectively	8,002	8,076	7,501
Net unrealized gain (loss) on defined benefit plans arising during the year, net of tax (provision) benefit of ($649), $5,333, and $236, respectively	1,036	(18,014)	666
Other Comprehensive Income (Loss)	8,858	(20,768)	14,490
Comprehensive Income	18,384	4,821	41,713
Comprehensive loss attributable to noncontrolling interests and redeemable noncontrolling interests	3,641	1,187	1,248
Comprehensive Income Attributable to Shareholders of Crawford & Company	$ 22,025	$ 6,008	$ 42,961