Document and Entity Information	6 Months Ended
	Jun. 30, 2014	Jul. 25, 2014
Document And Entity Information [Line Items]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2014
Document Fiscal Year Focus	2014
Document Fiscal Period Focus	Q2
Trading Symbol	KRA
Entity Registrant Name	KRATON PERFORMANCE POLYMERS, INC.
Entity Central Index Key	0001321646
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		32,798,667