Document And Entity Information	9 Months Ended
	Sep. 30, 2014	Oct. 24, 2014
Document Information [Line Items]
Entity Registrant Name	GP STRATEGIES CORP
Entity Central Index Key	0000070415
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Trading Symbol	GPX
Entity Common Stock, Shares Outstanding		17,093,573
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Sep. 30, 2014
Document Fiscal Period Focus	Q3
Document Fiscal Year Focus	2014