Consolidating Statement of Cash Flows (Detail) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2014		Jun. 30, 2013
Supplemental Guarantor Information [Line Items]
Cash flows provided by (used in) operating activities	$ (51,558)		$ (4,449)
CASH FLOWS FROM INVESTING ACTIVITIES
Proceeds from intercompany loans
Purchase of property, plant and equipment	(52,975)		(34,742)
Purchase of software and other intangibles	(1,789)		(1,945)
Settlement of net investment hedge			(2,225)
Net cash used in investing activities	(54,764)		(38,912)
CASH FLOWS FROM FINANCING ACTIVITIES
Proceeds from debt	24,000		40,000
Repayments of debt	(24,000)		(136,875)
Capital lease payments	(4,495)		(950)
Purchase of treasury stock	(667)
Cash contributions from member
Cash distributions to member
Contribution from noncontrolling interest			15,174
Proceeds from the exercise of stock options	1,036		310
Debt issuance costs			(4,794)
Payments on intercompany loans
Net cash used in financing activities	(4,126)		(87,135)
Effect of exchange rate differences on cash	467		(4,001)
Net decrease in cash and cash equivalents	(109,981)		(134,497)
Cash and cash equivalents, beginning of period	175,872		223,166
Cash and cash equivalents, end of period	65,891		88,669
Eliminations
Supplemental Guarantor Information [Line Items]
Cash flows provided by (used in) operating activities
CASH FLOWS FROM INVESTING ACTIVITIES
Proceeds from intercompany loans	(15,800)		(80,705)
Purchase of property, plant and equipment
Purchase of software and other intangibles
Settlement of net investment hedge
Net cash used in investing activities	(15,800)		(80,705)
CASH FLOWS FROM FINANCING ACTIVITIES
Proceeds from debt
Repayments of debt
Capital lease payments
Purchase of treasury stock
Cash contributions from member	667
Cash distributions to member	(667)
Contribution from noncontrolling interest
Proceeds from the exercise of stock options
Debt issuance costs
Payments on intercompany loans	15,800		80,705
Net cash used in financing activities	15,800		80,705
Effect of exchange rate differences on cash
Net decrease in cash and cash equivalents
Cash and cash equivalents, beginning of period
Cash and cash equivalents, end of period
Kraton
Supplemental Guarantor Information [Line Items]
Cash flows provided by (used in) operating activities
CASH FLOWS FROM INVESTING ACTIVITIES
Proceeds from intercompany loans
Purchase of property, plant and equipment
Purchase of software and other intangibles
Settlement of net investment hedge
Net cash used in investing activities
CASH FLOWS FROM FINANCING ACTIVITIES
Proceeds from debt
Repayments of debt
Capital lease payments
Purchase of treasury stock	(667)
Cash contributions from member
Cash distributions to member	(369)		(310)
Contribution from noncontrolling interest
Proceeds from the exercise of stock options	1,036		310
Debt issuance costs
Payments on intercompany loans
Net cash used in financing activities
Effect of exchange rate differences on cash
Net decrease in cash and cash equivalents
Cash and cash equivalents, beginning of period
Cash and cash equivalents, end of period
Kraton Polymers L L C
Supplemental Guarantor Information [Line Items]
Cash flows provided by (used in) operating activities	(15,142)	[1]	2,851	[1]
CASH FLOWS FROM INVESTING ACTIVITIES
Proceeds from intercompany loans	15,800	[1]	80,705	[1]
Purchase of property, plant and equipment	(384)	[1]		[1]
Purchase of software and other intangibles	(1,194)	[1]		[1]
Settlement of net investment hedge		[1]	(2,225)	[1]
Net cash used in investing activities	14,222	[1]	78,480	[1]
CASH FLOWS FROM FINANCING ACTIVITIES
Proceeds from debt		[1]		[1]
Repayments of debt		[1]	(96,875)	[1]
Capital lease payments		[1]		[1]
Purchase of treasury stock		[1]
Cash contributions from member		[1]	15,544	[1]
Cash distributions to member	1,036	[1]		[1]
Contribution from noncontrolling interest		[1]		[1]
Proceeds from the exercise of stock options		[1]		[1]
Debt issuance costs		[1]		[1]
Payments on intercompany loans		[1]		[1]
Net cash used in financing activities	1,036	[1]	(81,331)	[1]
Effect of exchange rate differences on cash		[1]		[1]
Net decrease in cash and cash equivalents	116	[1]		[1]
Cash and cash equivalents, beginning of period		[1]		[1]
Cash and cash equivalents, end of period	116	[1]		[1]
Guarantor Subsidiaries
Supplemental Guarantor Information [Line Items]
Cash flows provided by (used in) operating activities	35,993		(63,585)
CASH FLOWS FROM INVESTING ACTIVITIES
Proceeds from intercompany loans
Purchase of property, plant and equipment	(23,607)		(9,412)
Purchase of software and other intangibles	(595)		(1,770)
Settlement of net investment hedge
Net cash used in investing activities	(24,202)		(11,182)
CASH FLOWS FROM FINANCING ACTIVITIES
Proceeds from debt	24,000		40,000
Repayments of debt	(24,000)		(40,000)
Capital lease payments	(4,495)		(950)
Purchase of treasury stock
Cash contributions from member	(667)
Cash distributions to member
Contribution from noncontrolling interest
Proceeds from the exercise of stock options
Debt issuance costs			(3,310)
Payments on intercompany loans	(15,800)		17,148
Net cash used in financing activities	(20,962)		12,888
Effect of exchange rate differences on cash
Net decrease in cash and cash equivalents	(9,171)		(61,879)
Cash and cash equivalents, beginning of period	11,792		80,903
Cash and cash equivalents, end of period	2,621		19,024
Non-Guarantor Subsidiaries
Supplemental Guarantor Information [Line Items]
Cash flows provided by (used in) operating activities	(72,409)		56,285
CASH FLOWS FROM INVESTING ACTIVITIES
Proceeds from intercompany loans
Purchase of property, plant and equipment	(28,984)		(25,330)
Purchase of software and other intangibles			(175)
Settlement of net investment hedge
Net cash used in investing activities	(28,984)		(25,505)
CASH FLOWS FROM FINANCING ACTIVITIES
Proceeds from debt
Repayments of debt
Capital lease payments
Purchase of treasury stock
Cash contributions from member			(15,544)
Cash distributions to member			310
Contribution from noncontrolling interest			15,174
Proceeds from the exercise of stock options
Debt issuance costs			(1,484)
Payments on intercompany loans			(97,853)
Net cash used in financing activities			(99,397)
Effect of exchange rate differences on cash	467		(4,001)
Net decrease in cash and cash equivalents	(100,926)		(72,618)
Cash and cash equivalents, beginning of period	164,080		142,263
Cash and cash equivalents, end of period	$ 63,154		$ 69,645

[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.