Business	9 Months Ended
Sep. 30, 2015
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Business	Business CDI Corp. and its subsidiaries (the “Company” or “CDI”) provide engineering, information technology and staffing solutions. The Company's customers operate in a variety of industries, ranging from Oil, Gas and Chemicals to Aerospace and Industrial Equipment, and High Technology, and include corporate, federal, state and municipal entities. The Company serves customers through offices and delivery centers in the United States (U.S.), Canada and the United Kingdom (UK). The Company also provides staffing services through its global MRINetwork® of franchisees. On October 6, 2015, the Company acquired EdgeRock Technologies, LLC, a provider of enterprise resource planning (ERP) and specialist information technology (IT) staffing talent, including business intelligence and data analytics (see Note 13—Subsequent Events).

Business

9 Months Ended

Sep. 30, 2015

Organization, Consolidation and Presentation of Financial Statements [Abstract]

CDI Corp. and its subsidiaries (the “Company” or “CDI”) provide engineering, information technology and staffing solutions. The Company's customers operate in a variety of industries, ranging from Oil, Gas and Chemicals to Aerospace and Industrial Equipment, and High Technology, and include corporate, federal, state and municipal entities. The Company serves customers through offices and delivery centers in the United States (U.S.), Canada and the United Kingdom (UK). The Company also provides staffing services through its global MRINetwork® of franchisees.

On October 6, 2015, the Company acquired EdgeRock Technologies, LLC, a provider of enterprise resource planning (ERP) and specialist information technology (IT) staffing talent, including business intelligence and data analytics (see Note 13—Subsequent Events).