Accumulated Other Comprehensive Loss (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]      
Balance at December 31, $ (221,958)    
Unrealized net (losses) gains arising during the year 8,209 $ (43,181) $ 15,671
Net current period other comprehensive (loss) income (1,411) (43,145) 20,222
Balance at December 31, (222,631) (221,958)  
Defined benefit plan, actuarial gain (loss) 31,078 (103,497)  
AOCL attributable to shareholders of Crawford & Company      
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]      
Balance at December 31, (221,958) (179,210)  
Other comprehensive loss before reclassifications (19,688) (8,203)  
Unrealized net (losses) gains arising during the year 8,209 (43,181)  
Amounts reclassified from accumulated other comprehensive income, total [1] 10,806 8,636  
Net current period other comprehensive (loss) income (673) (42,748) 20,271
Balance at December 31, (222,631) (221,958) (179,210)
Foreign currency translation adjustments      
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]      
Balance at December 31, (4,659) 3,544  
Other comprehensive loss before reclassifications (19,688) (8,203)  
Net current period other comprehensive (loss) income (19,688) (8,203)  
Balance at December 31, (24,347) (4,659) 3,544
Retirement liabilities      
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]      
Balance at December 31, (217,299) (182,754)  
Unrealized net (losses) gains arising during the year 8,209 (43,181)  
Amounts reclassified from accumulated other comprehensive income, total [1] 10,806 8,636  
Net current period other comprehensive (loss) income 19,015 (34,545)  
Balance at December 31, (198,284) $ (217,299) $ (182,754)
Foreign pension plans | Netherlands      
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]      
Defined benefit plan, actuarial gain (loss) 5,500    
Deferred tax assets, effect of defined benefit plan curtailments 1,400    
Other comprehensive income (loss), finalization of pension and other postretirement benefit plan valuation, before tax $ 4,100    
[1] Retirement liabilities reclassified to net income are related to the amortization of actuarial losses and are included in "Selling, general, and administrative expenses" in the Company's Consolidated Statements of Operations. See Note 8, "Retirement Plans" for additional details.