Business	3 Months Ended
Mar. 31, 2015
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Business	Business CDI Corp. and its subsidiaries (the “Company” or “CDI”) provide customer-focused engineering, information technology and staffing solutions. The Company's customers operate in a variety of industries, ranging from Oil, Gas and Chemical 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.

Business

3 Months Ended

Mar. 31, 2015

Organization, Consolidation and Presentation of Financial Statements [Abstract]

CDI Corp. and its subsidiaries (the “Company” or “CDI”) provide customer-focused engineering, information technology and staffing solutions. The Company's customers operate in a variety of industries, ranging from Oil, Gas and Chemical 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.