Consolidating Balance Sheet (Parenthetical) (Detail) (USD $)	3 Months Ended			6 Months Ended			12 Months Ended
	Jun. 30, 2014		Jun. 30, 2013	Jun. 30, 2014		Jun. 30, 2013	Dec. 31, 2013
Supplemental Guarantor Information [Line Items]
Preferred stock, shares issued
Preferred stock, par value	$ 0.01			$ 0.01			$ 0.01
Preferred stock, shares authorized	100,000,000			100,000,000			100,000,000
Common stock, par value	$ 0.01			$ 0.01			$ 0.01
Common stock, shares authorized	500,000,000			500,000,000			500,000,000
6.75% Unsecured Notes Due 2019
Supplemental Guarantor Information [Line Items]
Debt instrument interest rate	6.75%		6.75%	6.75%		6.75%	6.75%
Debt instrument maturity date	Mar. 01, 2019		Mar. 01, 2019	Mar. 01, 2019		Mar. 01, 2019	Mar. 01, 2019
Eliminations
Supplemental Guarantor Information [Line Items]
Preferred stock, shares issued	0			0			0
Kraton
Supplemental Guarantor Information [Line Items]
Preferred stock, shares issued	0			0			0
Kraton Polymers L L C
Supplemental Guarantor Information [Line Items]
Preferred stock, shares issued	0	[1]		0	[1]		0	[1]
Guarantor Subsidiaries
Supplemental Guarantor Information [Line Items]
Preferred stock, shares issued	0			0			0
Non-Guarantor Subsidiaries
Supplemental Guarantor Information [Line Items]
Preferred stock, shares issued	0			0			0

[1] Kraton Polymers LLC and Kraton Polymers Capital Corporation, a financing subsidiary, collectively, the Issuers, are co-issuers of the 6.75% senior notes due March 1, 2019. Kraton Polymers Capital Corporation has minimal assets and income. We do not believe that separate financial information concerning the Issuers would provide additional information that would be material to investors in making an investment decision.