| Component: (Network and Table) | |
|---|---|
| Network | 2403404 - Disclosure - Goodwill and Intangible Assets Schedule of Acquired Indefinite-Lived Intangible Assets (Details) (http://www.crawfordandcompany.com/role/GoodwillAndIntangibleAssetsScheduleOfAcquiredIndefiniteLivedIntangibleAssetsDetails) |
| Table | Schedule of Acquired Indefinite-lived Intangible Assets by Major Class [Table] |
| Reporting Entity [Axis] | 0000025475 (http://www.sec.gov/CIK) |
| Indefinite-lived Intangible Assets [Axis] | Trade name |
| Acquired Indefinite-lived Intangible Assets [Line Items] | Period [Axis] | |
|---|---|---|
2016-12-31 | 2015-12-31 | |
Indefinite-lived intangible assets (excluding goodwill), gross | ||
Indefinite-lived intangible assets, accumulated impairments | ( | ( |
Indefinite-lived intangible assets (excluding goodwill) | ||