Kraton (KRA) 10-Q 31 Oct 13 2013 Q3 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information	9 Months Ended
	Sep. 30, 2013	Oct. 28, 2013
Document Document And Entity Information [Abstract]	'	'
Document Type	'10-Q	'
Amendment Flag	'false	'
Document Period End Date	30-Sep-13	'
Document Fiscal Year Focus	'2013	'
Document Fiscal Period Focus	'Q3	'
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	'	32,528,011

CONDENSED_CONSOLIDATED_BALANCE

CONDENSED CONSOLIDATED BALANCE SHEETS (USD $)	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2012	Dec. 31, 2011
In Thousands, unless otherwise specified
Current assets:	'	'	'	'
Cash and cash equivalents	$144,630	$223,166	$202,271	$88,579
Receivables, net of allowances of $414 and $401	142,886	124,635	'	'
Inventories of products	313,775	340,323	'	'
Inventories of materials and supplies	10,694	10,331	'	'
Deferred income taxes	9,032	7,869	'	'
Other current assets	19,601	28,363	'	'
Total current assets	640,618	734,687	'	'
Property, plant and equipment, less accumulated depreciation of $346,587 and $311,779	402,609	381,205	'	'
Intangible assets, less accumulated amortization of $76,152 and $68,531	58,447	63,393	'	'
Investment in unconsolidated joint venture	13,754	13,582	'	'
Debt issuance costs	9,756	10,846	'	'
Deferred income taxes	617	79	'	'
Other long-term assets	26,047	25,397	'	'
Total assets	1,151,848	1,229,189	'	'
Current liabilities:	'	'	'	'
Current portion of long-term debt	0	15,074	'	'
Accounts payable-trade	93,193	99,167	'	'
Other payables and accruals	39,687	50,978	'	'
Deferred income taxes	412	513	'	'
Due to related party	22,813	16,080	'	'
Total current liabilities	156,105	181,812	'	'
Long-term debt, net of current portion	351,028	432,943	'	'
Deferred income taxes	21,355	22,273	'	'
Other long-term liabilities	103,051	99,946	'	'
Total liabilities	631,539	736,974	'	'
Commitments and contingencies (note 10)	'	'	'	'
Kraton stockholders’ equity:	'	'	'	'
Preferred stock, $0.01 par value; 100,000 shares authorized; none issued	0	0	'	'
Common stock, $0.01 par value; 500,000 shares authorized; 32,528 shares issued and outstanding at September 30, 2013; 32,277 shares issued and outstanding at December 31, 2012	325	323	'	'
Additional paid in capital	361,627	354,957	'	'
Retained earnings	165,928	171,445	'	'
Accumulated other comprehensive loss	-37,898	-34,510	'	'
Total Kraton stockholders’ equity	489,982	492,215	'	'
Noncontrolling interest	30,327	0	'	'
Total equity	520,309	492,215	531,600	517,794
Total liabilities and equity	$1,151,848	$1,229,189	'	'

CONDENSED_CONSOLIDATED_BALANCE1

CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, except Per Share data, unless otherwise specified
Statement Of Financial Position [Abstract]	'	'
Receivables, allowances	$414	$401
Property, plant and equipment, accumulated depreciation	346,587	311,779
Intangible assets, accumulated amortization	$76,152	$68,531
Preferred stock, par value	$0.01	$0.01
Preferred stock, shares authorized	100,000	100,000
Preferred stock, shares issued	'	'
Common stock, par value	$0.01	$0.01
Common stock, shares authorized	500,000	500,000
Common stock, shares issued	32,528	32,277
Common stock, shares outstanding	32,528	32,277

CONDENSED_CONSOLIDATED_STATEME

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (USD $)	3 Months Ended		9 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Income Statement [Abstract]	'	'	'	'
Sales revenue	$327,109	$342,635	$1,001,759	$1,126,704
Cost of goods sold	279,659	299,882	834,537	934,952
Gross profit	47,450	42,753	167,222	191,752
Operating expenses:	'	'	'	'
Research and development	7,413	7,401	23,772	22,957
Selling, general and administrative	22,430	23,447	73,548	76,223
Depreciation and amortization	15,814	16,109	46,653	47,843
Impairment of long-lived assets	0	5,434	0	5,434
Total operating expenses	45,657	52,391	143,973	152,457
Earnings of unconsolidated joint venture	117	133	372	433
Interest expense, net	5,741	7,634	24,948	22,106
Income (loss) before income taxes	-3,831	-17,139	-1,327	17,622
Income tax expense (benefit)	2,021	-1,640	4,372	4,361
Consolidated net income (loss)	-5,852	-15,499	-5,699	13,261
Net loss attributable to noncontrolling interest	-254	0	-182	0
Net income (loss) attributable to Kraton	($5,598)	($15,499)	($5,517)	$13,261
Earnings (loss) per common share:	'	'	'	'
Basic	($0.17)	($0.48)	($0.17)	$0.41
Diluted	($0.17)	($0.48)	($0.17)	$0.41
Weighted average common shares outstanding:	'	'	'	'
Basic	32,073	31,943	32,069	31,927
Diluted	32,073	31,943	32,069	32,202

CONDENSED_CONSOLIDATED_STATEME1

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Statement Of Income And Comprehensive Income [Abstract]	'	'	'	'
Net income (loss) attributable to Kraton	($5,598)	($15,499)	($5,517)	$13,261
Other comprehensive income (loss):	'	'	'	'
Foreign currency translation adjustments, net of tax of $0	9,511	7,020	-3,735	-6,025
Unrealized gain (loss) of interest rate swaps, net of tax of $0	0	-9	837	-143
Unrealized gain (loss) of net investment hedge, net of tax of $0	-265	-1,155	-490	648
Other comprehensive income (loss), net of tax	9,246	5,856	-3,388	-5,520
Comprehensive income (loss) attributable to Kraton	3,648	-9,643	-8,905	7,741
Comprehensive income attributable to noncontrolling interest	178	0	111	0
Consolidated comprehensive income (loss)	$3,826	($9,643)	($8,794)	$7,741

CONDENSED_CONSOLIDATED_STATEME2

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (Parenthetical) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Statement Of Income And Comprehensive Income [Abstract]	'	'	'	'
Foreign currency translation adjustments, tax effect	$0	$0	$0	$0
Unrealized gain (loss) of interest rate swaps, tax effect	0	0	0	0
Unrealized gain (loss) of net investment hedge, tax effect	$0	$0	$0	$0

CONDENSED_CONSOLIDATED_STATEME3

CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY (USD $)	Total	Common Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Total Kraton Stockholders' Equity	Noncontrolling Interest
In Thousands
Beginning Balance at Dec. 31, 2011	$517,794	$321	$347,455	$187,636	($17,618)	$517,794	$0
Net income (Net Loss)	13,261	0	0	13,261	0	13,261	0
Other comprehensive income (loss)	-5,520	0	0	0	-5,520	-5,520	0
Exercise of stock options	820	2	818	0	0	820	0
Non-cash compensation related to equity awards	5,245	0	5,245	0	0	5,245	0
Ending Balance at Sep. 30, 2012	531,600	323	353,518	200,897	-23,138	531,600	0
Beginning Balance at Dec. 31, 2012	492,215	323	354,957	171,445	-34,510	492,215	0
Net income (Net Loss)	-5,699	0	0	-5,517	0	-5,517	-182
Other comprehensive income (loss)	-3,095	0	0	0	-3,388	-3,388	293
Consolidation of variable interest entity	30,216	0	0	0	0	0	30,216
Exercise of stock options	310	2	308	0	0	310	0
Non-cash compensation related to equity awards	6,362	0	6,362	0	0	6,362	0
Ending Balance at Sep. 30, 2013	$520,309	$325	$361,627	$165,928	($37,898)	$489,982	$30,327

CONDENSED_CONSOLIDATED_STATEME4

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012
CASH FLOWS FROM OPERATING ACTIVITIES	'	'
Consolidated net income (loss)	($5,699)	$13,261
Adjustments to reconcile consolidated net income (loss) to net cash provided by operating activities:	'	'
Depreciation and amortization	46,653	47,843
Amortization of debt premium	-114	-72
Amortization of debt issuance costs	6,841	2,235
(Gain) loss on property, plant and equipment	-37	415
Impairment of long-lived assets	0	5,434
Earnings from unconsolidated joint venture, net of dividends received	51	-33
Deferred income tax benefit	-2,737	-6,172
Share-based compensation	6,362	5,245
Decrease (increase) in:	'	'
Accounts receivable	-18,737	-23,059
Inventories of products, materials and supplies	25,538	53,056
Other assets	5,772	-721
Increase (decrease) in:	'	'
Accounts payable-trade	-8,081	7,909
Other payables and accruals	-12,334	-8,768
Other long-term liabilities	3,304	-1,554
Due to related party	11,305	7,169
Net cash provided by operating activities	58,087	102,188
CASH FLOWS FROM INVESTING ACTIVITIES	'	'
Purchase of property, plant and equipment	-57,922	-42,436
Purchase of software and other intangibles	-3,106	-1,789
Settlement of net investment hedge	-2,490	1,648
Net cash used in investing activities	-63,518	-42,577
CASH FLOWS FROM FINANCING ACTIVITIES	'	'
Proceeds from debt	40,000	101,250
Repayments of debt	-136,875	-45,626
Capital lease payments	-950	0
Contribution from noncontrolling interest	30,216	0
Proceeds from the exercise of stock options	310	820
Debt issuance costs	-4,794	-3,156
Net cash provided by (used in) financing activities	-72,093	53,288
Effect of exchange rate differences on cash	-1,012	793
Net increase (decrease) in cash and cash equivalents	-78,536	113,692
Cash and cash equivalents, beginning of period	223,166	88,579
Cash and cash equivalents, end of period	144,630	202,271
Supplemental disclosures:	'	'
Cash paid during the period for income taxes, net of refunds received	7,397	12,695
Cash paid during the period for interest, net of capitalized interest	24,207	23,854
Capitalized interest	2,951	1,877
Supplemental non-cash disclosures:	'	'
Capital accruals	7,170	2,715
Capital lease liability included in accounts payable	$1,950	$0

General

General	9 Months Ended
	Sep. 30, 2013
General	'
	1. General
	Description of our Business. We are a leading global producer of styrenic block copolymers (“SBCs”) and other engineered polymers. We market our products under the Kraton®, CariflexTM and NEXARTM brands. SBCs are highly-engineered synthetic elastomers, which we invented and commercialized almost 50 years ago, that enhance the performance of numerous end use products by imparting greater flexibility, resilience, strength, durability and processability.
	Our polymers are typically formulated or compounded with other products to achieve improved, customer-specific performance characteristics in a variety of applications. We seek to maximize the value of our product portfolio by emphasizing complex or specialized polymers and innovations that yield higher margins. We sometimes refer to these complex or specialized polymers or innovations as being more “differentiated.”
	Our products are found in many everyday applications, including personal care products such as disposable diapers and the rubberized grips of toothbrushes, razor blades and power tools. Our products are also used to impart tack and shear properties in a wide variety of adhesive products and to impart characteristics such as flexibility and durability in sealants and corrosion resistance in coatings. Our paving and roofing applications provide durability, extending road and roof life.
	We also produce Cariflex isoprene rubber and isoprene rubber latex. Our Cariflex products are highly-engineered, non-SBC synthetic substitutes for natural rubber and natural rubber latex. Our Cariflex products, which have not been found to contain the proteins present in natural rubber latex and are, therefore, not known to cause allergies, are used in applications such as surgical gloves and condoms. We believe the versatility of Cariflex provides opportunities for new, high-margin applications.
	We have a portfolio of innovations at various stages of development and commercialization, including
	polyvinyl chloride alternatives for wire and cable, and medical applications;
	polymers and compounds for soft skin and coated fabric applications for transportation and consumer markets;
	our NEXAR family of membrane polymers for water filtration, heating, ventilation, air conditioning and breathable fabrics; and
	synthetic cement formulations and other oilfield applications.
	We manufacture our polymers at five manufacturing facilities globally, including our flagship facility in Belpre, Ohio, as well as facilities in Germany, France, Brazil and Japan. The facility in Japan is operated by an unconsolidated manufacturing joint venture. The terms “Kraton,” “our company,” “we,” “our,” “ours” and “us” as used in this report refer collectively to Kraton Performance Polymers, Inc. and its consolidated subsidiaries.
	Basis of Presentation. The accompanying unaudited condensed consolidated financial statements presented herein are for us and our consolidated subsidiaries, each of which is a wholly-owned subsidiary, except our 50% investment in our joint venture, Kraton Formosa Polymers Corporation (“KFPC”), located in Mailiao, Taiwan. KFPC is a variable interest entity for which we have determined that we are the primary beneficiary and, therefore, have consolidated into our financial statements. Our 50% investment in our joint venture located in Kashima, Japan is accounted for under the equity method of accounting. All significant intercompany transactions have been eliminated. These interim financial statements should be read in conjunction with the consolidated financial statements included in our Annual Report on Form 10-K for the year ended December 31, 2012 and reflect all normal recurring adjustments that are, in the opinion of management, necessary to present fairly our results of operations and financial position. Amounts reported in our Condensed Consolidated Statements of Operations are not necessarily indicative of amounts expected for the respective annual periods or any other interim period, in particular due to the effect of seasonal changes and weather conditions that typically affect our sales into our Paving and Roofing end use market.
	Our significant accounting policies have been disclosed in Note 1 Description of Business, Basis of Presentation and Significant Accounting Policies in our most recent Annual Report on Form 10-K. There have been no changes to the policies disclosed therein. The accompanying unaudited condensed consolidated financial statements we present in this report have been prepared in accordance with those policies.
	Use of Estimates. The preparation of condensed consolidated financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the condensed consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.
	Significant items subject to such estimates and assumptions include
	the useful lives of fixed assets;
	allowances for doubtful accounts and sales returns;
	the valuation of derivatives, deferred tax assets, property, plant and equipment, inventory, investments and share-based compensation; and
	liabilities for employee benefit obligations, asset retirement obligations (“ARO”), income tax uncertainties and other contingencies.
	Income Tax in Interim Periods. We conduct operations in separate legal entities in different jurisdictions. As a result, income tax amounts are reflected in these condensed consolidated financial statements for each of those jurisdictions. Tax laws and tax rates vary substantially in these jurisdictions and are subject to change based on the political and economic climate in those countries. We file our tax returns in accordance with our interpretations of each jurisdiction’s tax laws. We record our tax provision or benefit on an interim basis using the estimated annual effective tax rate. This rate is applied to the current period ordinary income or loss to determine the income tax provision or benefit allocated to the interim period.
	Losses from jurisdictions for which no benefit can be realized and the income tax effects of unusual and infrequent items are excluded from the estimated annual effective tax rate. Valuation allowances are provided against the future tax benefits that arise from the losses in jurisdictions for which no benefit can be realized. The effects of unusual and infrequent items are recognized in the impacted interim period as discrete items.
	The estimated annual effective tax rate may be significantly affected by nondeductible expenses and by our projected earnings mix by tax jurisdiction. Adjustments to the estimated annual effective income tax rate are recognized in the period during which such estimates are revised.
	We have established valuation allowances against a variety of deferred tax assets, including net operating loss carryforwards, foreign tax credits and other income tax credits. Valuation allowances take into consideration our ability to realize these deferred tax assets and reduce the value of such assets to the amount that is deemed more likely than not to be recoverable. Our ability to realize these deferred tax assets is dependent on achieving our forecast of future taxable operating income over an extended period of time. We review our forecast in relation to actual results and expected trends on a quarterly basis. If we fail to achieve our operating income targets, we may change our assessment regarding the recoverability of our net deferred tax assets and such change could result in a valuation allowance being recorded against some or all of our net deferred tax assets. A change in our valuation allowance would impact our income tax expense/benefit and our stockholders’ equity and could have a significant impact on our results of operations or financial condition in future periods.

New_Accounting_Pronouncements

New Accounting Pronouncements	9 Months Ended
	Sep. 30, 2013
New Accounting Pronouncements	'
	2. New Accounting Pronouncements
	Adoption of Accounting Standards
	We have implemented all new accounting pronouncements that are in effect and that management believes would materially affect our financial statements. Management does not believe that there are any other new accounting pronouncements that have been issued that may have a material impact on our financial position or results of operations.

ShareBased_Compensation

Share-Based Compensation	9 Months Ended
	Sep. 30, 2013
Share-Based Compensation	'
	3. Share-Based Compensation
	We account for share-based awards under the provisions of ASC 718, “Compensation—Stock Compensation.” Accordingly, share-based compensation cost is measured at the grant date based on the fair value of the award and we expense these costs using the straight-line method over the requisite service period. Share-based compensation expense was $1.8 million and $1.5 million for the three months ended September 30, 2013 and 2012, respectively, and $6.4 million and $5.2 million for the nine months ended September 30, 2013 and 2012, respectively. We have historically recorded these costs in selling, general and administrative expenses; however, beginning in the second quarter of 2013, a portion of these costs were recorded in cost of goods sold and research and development expenses.

Detail_of_Certain_Balance_Shee

Detail of Certain Balance Sheet Accounts	9 Months Ended
	Sep. 30, 2013
Detail of Certain Balance Sheet Accounts	'
	4. Detail of Certain Balance Sheet Accounts
		September 30,			December 31,
		2013			2012
		(In thousands)
	Inventories of products:
	Finished products	$	229,651		$	260,510
	Work in progress		2,367			6,759
	Raw materials		81,757			73,054
	Total inventories of products	$	313,775		$	340,323
	Other payables and accruals:
	Employee related	$	12,704		$	13,423
	Income taxes payable		2,343			3,638
	Other		24,640			33,917
	Total other payables and accruals	$	39,687		$	50,978
	Other long-term liabilities:
	Pension and other postretirement benefits	$	84,889		$	84,005
	Other		18,162			15,941
	Total other long-term liabilities	$	103,051		$	99,946
	Accumulated other comprehensive loss:
	Foreign currency translation adjustments	$	23,221		$	26,956
	Net unrealized loss on interest rate swaps		0			(837	)
	Net unrealized loss on net investment hedge		(1,926	)		(1,436	)
	Pension liability		(59,193	)		(59,193	)
	Total accumulated other comprehensive loss	$	(37,898	)	$	(34,510	)

Earnings_Per_Share_EPS

Earnings Per Share ("EPS")	9 Months Ended
	Sep. 30, 2013
Earnings Per Share ("EPS")	'
	5. Earnings Per Share (“EPS”)
	Basic EPS is computed by dividing net income attributable to Kraton by the weighted-average number of shares outstanding during the period.
	Diluted EPS is computed by dividing net income attributable to Kraton by the diluted weighted-average number of shares outstanding during the period and, accordingly, reflects the potential dilution that could occur if securities or other agreements to issue common stock, such as stock options, were exercised, settled or converted into common stock and were dilutive. The diluted weighted-average number of shares used in our diluted EPS calculation is determined using the treasury stock method.
	Unvested awards of share-based payments with rights to receive dividends or dividend equivalents, such as our restricted stock awards, are considered to be participating securities, and therefore, the two-class method is used for purposes of calculating EPS. Under the two-class method, a portion of net income is allocated to these participating securities and is excluded from the calculation of EPS allocated to common stock. Our restricted stock awards are subject to forfeiture and restrictions on transfer until vested and have identical voting, income and distribution rights to the unrestricted common shares outstanding.
	The computation of diluted EPS excludes the effect of the potential exercise of stock options that are anti-dilutive. The number of stock options excluded from the computation was 1,643,950 and 757,687 for the three months ended September 30, 2013 and 2012, and 1,643,950 and 737,033 for the nine months ended September 30, 2013 and 2012, respectively. For the three months ended September 30, 2013, the weighted average restricted share units and performance share units of 57,591 and 67,585, respectively, and 51,106 and 51,988 for the nine months ended September 30, 2013, respectively, are not included as a component of diluted EPS as they are anti-dilutive.
	The effects of share-based compensation awards on the diluted weighted-average number of shares outstanding used in calculating diluted EPS are as follows:
		Three months ended											Three months ended
		30-Sep-13											30-Sep-12
		Net			Weighted				Loss				Net			Weighted				Loss
		Loss			Average				Per				Loss			Average				Per
		Attributable			Shares				Share				Attributable			Shares				Share
		to Kraton			Outstanding								to Kraton			Outstanding
		(In thousands, except per share data)											(In thousands, except per share data)
	Basic:
	As reported	$	(5,598	)		32,528						$		(15,499	)		32,251
	Amounts allocated to unvested restricted shares		78			(455	)							148			(308	)
	Amounts available to common stockholders		(5,520	)		32,073		$		(0.17	)			(15,351	)		31,943		$		(0.48	)
	Diluted:
	Amounts allocated to unvested restricted shares		(78	)		455								(148	)		308
	Non participating share units		0			0								0			0
	Stock options added under the treasury stock method		0			0								0			0
	Amounts reallocated to unvested restricted shares		78			(455	)							148			(308	)
	Amounts available to stockholders and assumed conversions	$	(5,520	)		32,073		$		(0.17	)	$		(15,351	)		31,943		$		(0.48	)
		Nine months ended											Nine months ended
		30-Sep-13											30-Sep-12
		Net			Weighted				Loss				Net			Weighted				Earnings
		Loss			Average				Per				Income			Average				Per
		Attributable			Shares				Share				Attributable			Shares				Share
		to Kraton			Outstanding								to Kraton			Outstanding
		(In thousands, except per share data)											(In thousands, except per share data)
	Basic:
	As reported	$	(5,517	)		32,471						$		13,261			32,210
	Amounts allocated to unvested restricted shares		68			(402	)							(117	)		(283	)
	Amounts available to common stockholders		(5,449	)		32,069		$		(0.17	)			13,144			31,927		$		0.41
	Diluted:
	Amounts allocated to unvested restricted shares		(68	)		402								117			283
	Non participating share units		0			0								0			29
	Stock options added under the treasury stock method		0			0								0			246
	Amounts reallocated to unvested restricted shares		68			(402	)							(116	)		(283	)
	Amounts available to stockholders and assumed conversions	$	(5,449	)		32,069		$		(0.17	)	$		13,145			32,202		$		0.41

LongTerm_Debt

Long-Term Debt	9 Months Ended
	Sep. 30, 2013
Long-Term Debt	'
	6. Long-Term Debt
	Long-term debt consists of the following:
		September 30,		December 31,
		2013		2012
		(In thousands)
	Term loans	$	0	$	96,875
	6.75% unsecured notes		351,028		351,142
	Total long-term debt		351,028		448,017
	Less current portion of long-term debt		0		15,074
	Long-term debt, less current portion	$	351,028	$	432,943
	Senior Secured Credit Facilities. In March 2013, we entered into an asset-based revolving credit facility consisting of a $150.0 million U.S. senior secured revolving credit facility and a $100.0 million Dutch senior secured revolving credit facility (the “Senior Secured Credit Facilities”). The Senior Secured Credit Facilities replaced our then existing senior secured credit facility, and we repaid in full all outstanding amounts payable under the previously existing indebtedness. Borrowing under the Senior Secured Credit Facilities is subject to borrowing base limitations based on the level of receivables and inventory available for security.
	We may request up to an aggregate of $100.0 million of additional revolving facility commitments of which up to an aggregate of $40.0 million may be additional Dutch revolving facility commitments, provided that we satisfy additional conditions described in the Senior Secured Credit Facilities, and provided further that the U.S. revolver commitment is at least 60% of the commitments after giving effect to such increase.
	Kraton Polymers U.S. LLC and Kraton Polymers Nederland B.V. are the borrowers under the Senior Secured Credit Facilities, and Kraton Performance Polymers, Inc., Kraton Polymers LLC, Elastomers Holdings LLC and Kraton Polymers Capital Corporation are guarantors. The Senior Secured Credit Facilities are secured by receivables and inventory. The Senior Secured Credit Facilities terminate on March 27, 2018; however, we may from time to time request that the lenders extend the maturity of their commitments. Availability under the Senior Secured Credit Facilities is limited to the lesser of the borrowing base and total commitments (less certain reserves).
	U.S. borrowings under the Senior Secured Credit Facilities (other than swingline loans) bear interest at a rate equal to, at the applicable borrower’s option, either (a) a base rate determined by reference to the greater of (1) the prime rate of Bank of America, N.A., (2) the federal funds rate plus 0.50% and (3) LIBOR plus 1.0%, or (b) a rate based on LIBOR, in each case plus an applicable margin. U.S. swingline loans shall bear interest at a base rate determined by reference to the greater of (1) the prime rate of Bank of America, N.A., (2) the federal funds rate plus 0.50% or (3) LIBOR plus 1.0%, in each case plus an applicable margin.
	Dutch borrowings under the Senior Secured Credit Facilities bear interest at a rate equal to, at the applicable borrower’s option, either (a) a fluctuating rate, with respect to Euros, Pounds Sterling and Dollars outside of the U.S. and Canada, equal to the rate announced by the European Central Bank and used as a base rate by the local branch of Bank of America in the jurisdiction in which such currency is funded, or (b) a rate based on LIBOR, in each case plus an applicable margin.
	The applicable margin is subject to a minimum of 0.5% and a maximum of 1.0% with respect to U.S. base rate loans, and a minimum of 1.5% and maximum of 2.0% for foreign base rate borrowings and LIBOR loans and is subject to adjustment based on the borrowers’ excess availability of the applicable facility for the most recent fiscal quarter.
	In addition to paying interest on outstanding principal amounts under the Senior Secured Credit Facilities, the borrowers will be required to pay a commitment fee in respect of the unutilized commitments at an annual rate of 0.375%.
	The Senior Secured Credit Facilities contain a financial covenant that if either (a) excess availability is less than the greater of (i) 12.5% of the lesser of the commitments and the borrowing base and (ii) $31,250,000 or (b) U.S. availability is less than the greater of (i) 12.5% of the lesser of the U.S. commitments and U.S. borrowing base and (ii) $18,750,000, then following such event, Kraton and its restricted subsidiaries must maintain a fixed charge coverage ratio of at least 1.0 to 1.0. The Senior Secured Credit Facilities contain certain customary events of default, including, without limitation, a failure to make payments under the facility, cross-default and cross-judgment default, certain bankruptcy events and certain change of control events.
	As of September 30, 2013, our available borrowing capacity was $187.3 million of which $0.0 million was drawn. As of the date of this filing, our available borrowing capacity was $196.4 million, of which $0.0 million was drawn.
	6.75% Senior Notes due 2019. Kraton Polymers LLC and its wholly-owned financing subsidiary Kraton Polymers Capital Corporation issued $350.0 million aggregate principal amount of 6.75% senior notes that mature on March 1, 2019 pursuant to an indenture, dated February 11, 2011 ($250.0 million senior notes) and supplemental indenture thereto dated March 20, 2012 ($100.0 million senior notes). The indenture provides that the notes are general unsecured, senior obligations and will be unconditionally guaranteed on a senior unsecured basis. We pay interest on the notes at 6.75% per annum, semi-annually in arrears on March 1 and September 1 of each year.
	Debt Maturities. The remaining principal payments on our outstanding total debt as of September 30, 2013, are as follows:
		Principal
		Payments
		(In thousands)
	December 31:
	2019		350,000
	Total debt	$	350,000
	See Note 8 Fair Value Measurements, Financial Instruments and Credit Risk for fair value information related to our long-term debt.

Debt_Issuance_Costs

Debt Issuance Costs	9 Months Ended
	Sep. 30, 2013
Debt Issuance Costs	'
	7. Debt Issuance Costs
	We capitalize the debt issuance costs related to issuing long-term debt and amortize these costs using the effective interest method, except for costs related to revolving debt, which are amortized using the straight-line method. We had net debt issuance costs of $11.9 million and $13.9 million (of which $2.2 million and $3.1 million were included in other current assets) as of September 30, 2013 and December 31, 2012, respectively. In connection with the March 2013 refinancing of our indebtedness, we charged to interest expense $5.0 million of unamortized debt issuance costs related to our previously existing indebtedness and we capitalized $4.8 million of debt issuance costs related to our new indebtedness. We amortized $0.5 million and $0.7 million of debt issuance costs for the three months ended September 30, 2013 and 2012, respectively, and $1.8 million (which excludes the $5.0 million of accelerated amortization) and $2.2 million of debt issuance costs for the nine months ended September 30, 2013 and 2012, respectively.

Fair_Value_Measurements_Financ

Fair Value Measurements, Financial Instruments and Credit Risk	9 Months Ended
	Sep. 30, 2013
Fair Value Measurements, Financial Instruments and Credit Risk	'
	8. Fair Value Measurements, Financial Instruments and Credit Risk
	ASC 820, “Fair Value Measurements and Disclosures” defines fair value, establishes a consistent framework for measuring fair value and expands disclosure requirements about fair value measurements. ASC 820 requires entities to, among other things, maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value.
	ASC 820 defines fair value as the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date.
	ASC 820 specifies a hierarchy of valuation techniques based on whether the inputs to those valuation techniques are observable or unobservable. Observable inputs reflect market data obtained from independent sources, while unobservable inputs reflect our market assumptions.
	In accordance with ASC 820, these two types of inputs have created the following fair value hierarchy:
	Level 1—Inputs that are quoted prices (unadjusted) for identical assets or liabilities in active markets;
	Level 2—Inputs other than quoted prices included within Level 1 that are observable for the asset or liability, either directly or indirectly, for substantially the full term of the asset or liability, including:
	Quoted prices for similar assets or liabilities in active markets
	Quoted prices for identical or similar assets or liabilities in markets that are not active
	Inputs other than quoted prices that are observable for the asset or liability
	Inputs that are derived principally from or corroborated by observable market data by correlation or other means; and
	Level 3—Inputs that are unobservable and reflect our assumptions used in pricing the asset or liability based on the best information available under the circumstances (e.g., internally derived assumptions surrounding the timing and amount of expected cash flows).
	Recurring Fair Value Measurements. The following tables set forth by level within the fair value hierarchy our financial assets and liabilities that were accounted for at fair value on a recurring basis as of September 30, 2013 and December 31, 2012. These financial assets and liabilities are classified in their entirety based on the lowest level of input that is significant to the fair value measurement.
	Our assessment of the significance of a particular input to the fair value measurement requires judgment, which judgment may affect the valuation of their fair value and their placement within the fair value hierarchy levels.
		Balance Sheet Location		September 30,				Fair Value Measurements at Reporting Date Using
				2013				Quoted Prices				Significant						Significant
								in Active				Other						Unobservable
								Markets for				Observable						Inputs
								Identical Assets				Inputs						(Level 3)
								(Level 1)				(Level 2)
								(In thousands)
	Retirement plan asset—noncurrent	Other long-term assets			1,672					1,672			0						0
	Derivative liability—current	Other payables and accruals			(22	)				0			(22	)					0
	Total			$	1,650			$		1,672		$	(22	)			$		0
		Balance Sheet Location		December 31,				Fair Value Measurements at Reporting Date Using
				2012				Quoted Prices				Significant				Significant
								in Active				Other				Unobservable
								Markets for				Observable				Inputs
								Identical Assets				Inputs				(Level 3)
								(Level 1)				(Level 2)
								(In thousands)
	Derivative asset—current	Other current assets		$	34			$		0		$	34			$		0
	Retirement plan asset—noncurrent	Other long-term assets			860					860			0					0
	Derivative liability—current	Other payables and accruals			(578	)				0			(578	)				0
	Derivative liability—noncurrent	Other long-term liabilities			(258	)				0			(258	)				0
	Total			$	58			$		860		$	(802	)		$		0
	The use of derivatives creates exposure to credit risk relating to potential losses that could be recognized in the event that the counterparties to these instruments fail to perform their obligations under the contracts. We seek to minimize this risk by limiting our counterparties to major financial institutions with acceptable credit ratings and by monitoring the total value of positions with individual counterparties. In the event of a default by one of our counterparties, we may not receive payments provided for under the terms of our derivatives.
	The following table presents the carrying values and approximate fair values of our long-term debt.
		September 30, 2013														December 31, 2012
		Carrying							Fair								Carrying				Fair
		Value							Value								Value				Value
		(In thousands)
	Term loans	$	0				$				0				$			96,875		$		96,875
	6.75% unsecured notes	$	351,028				$				358,810				$			351,142		$		364,000
	The term loans are variable interest rate instruments, and as such, the fair value approximates their carrying value.
	Financial Instruments
	Interest Rate Swap Agreements. Periodically, we enter into interest rate swap agreements to hedge or otherwise protect against interest rate fluctuations on a portion of our variable rate debt. These interest rate swap agreements are designated as cash flow hedges on our exposure to the variability of future cash flows.
	In June 2011, we entered into a $75.0 million notional amount interest rate swap agreement with respect to a portion of our outstanding term loans. This agreement was effective on July 15, 2011 and was set to expire on June 15, 2014. However, on March 27, 2013, in connection with the refinancing of our credit facility, we terminated and settled the interest rate swap agreement, and as a result, recognized $0.7 million of interest expense for the three months ended March 31, 2013. We recorded an unrealized loss of $0.1 million in accumulated other comprehensive loss related to the effective portion of this interest rate swap agreement for the three months ended March 31, 2012.
	Fair Value Hedges. In April 2012, we entered into a series of non-deliverable forward contracts to reduce our exposure to fluctuations in the Canadian dollar (“CAD”) against the U.S. dollar in connection with the funding of certain capital expenditures. These non-deliverable forward contracts qualified for hedge accounting and were designated as fair value hedges in accordance with ASC 815-25 “Fair Value Hedges.” The only non-deliverable forward contract outstanding as of September 30, 2013 had a notional amount of CAD $1.6 million with a settlement date of October 8, 2013. This hedge was effective in offsetting our exposure to the CAD, and therefore the $0.1 million gain on the hedge was offset by the $0.1 million loss on the exposure associated with the funding of our semi-works facility for the three months ended September 30, 2013. There was no net impact for the nine months ended September 30, 2013. Similarly, for the three months ended September 30, 2012, the $0.1 million gain on the hedge was offset by the $0.1 million loss on the exposure to the CAD and for the nine months ended September 30, 2012 the $0.1 million loss on the hedge was offset by the $0.1 million gain on the exposure to the CAD.
	Net Investment Hedges. During 2012, we entered into a series of non-deliverable forward and foreign currency option contracts to protect our net investment in our European subsidiaries against adverse changes in exchange rates by fixing the U.S. dollar/Euro exchange rate. The notional amounts of these contracts ranged from €50.0 million to €100.0 million with all contracts expiring after thirty days. In June 2013, we entered into a €11.6 million notional amount non-deliverable forward contract to protect our net investment in our subsidiary in Taiwan against adverse changes in exchange rates by fixing the New Taiwan Dollar/Euro exchange rate. These contracts qualify for hedge accounting and were designated as net investment hedges in accordance with ASC 815-35 “Net Investment Hedges.” We recorded in accumulated other comprehensive loss an aggregate $0.5 million loss related to the settlement of the effective portion of these contracts during the nine months ended September 30, 2013.We recorded in accumulated other comprehensive loss an aggregate $0.6 million gain related to the settlement of the effective portion of these contracts during the nine months ended September 30, 2012.
	Foreign Currency Hedges. Periodically, we enter into foreign currency agreements to hedge or otherwise protect against fluctuations in foreign currency exchange rates. These agreements typically do not qualify for hedge accounting and gains/losses resulting from both the up-front premiums and/or settlement of the hedges at expiration of the agreements are recognized in the period in which they are incurred. During the nine months ended September 30, 2013 and 2012, we entered into a series of foreign currency option and forward contracts to reduce our exposure to exchange rate volatility. The contracts were structured such that the underlying foreign currency exchange gains/losses would be offset by the mark-to-market impact of the hedging instruments and reduce the impact of foreign currency exchange movements throughout the period. These contracts did not qualify for hedge accounting. For the three months ended September 30, 2013 and 2012, we settled these hedges and recorded an aggregate gain of $0.3 million and a gain of $0.1 million, respectively. For the nine months ended September 30, 2013 and 2012, we recorded an aggregate loss of $1.5 million and a gain of $1.2 million, respectively. In all periods, the gains or losses on settlement of these hedges offset the underlying foreign currency exchange gains and losses recorded in cost of goods sold.
	Credit Risk
	We analyze the counterparties’ financial condition prior to extending credit and we establish credit limits and monitor the appropriateness of those limits on an ongoing basis. We also obtain cash, letters of credit or other acceptable forms of security from customers to provide credit support, where appropriate, based on our financial analysis of the customer and the contractual terms and conditions applicable to each transaction.

Income_Taxes

Income Taxes	9 Months Ended
	Sep. 30, 2013
Income Taxes	'
	9. Income Taxes
	Our income tax provision was $2.0 million expense and $1.6 million benefit for the three months ended September 30, 2013 and 2012, and $4.4 million expense for both the nine months ended September 30, 2013 and 2012, respectively. Our effective tax rate was 52.8% expense and 9.6% benefit for the three months ended September 30, 2013 and 2012, and 329.5% and 24.7% expense for the nine months ended September 30, 2013 and 2012, respectively. Our effective tax rates differed from the U.S. corporate statutory tax rate of 35.0%, primarily due to the mix of pre-tax income or loss earned in certain jurisdictions and the change in our valuation allowance.
	As of September 30, 2013 and December 31, 2012, a valuation allowance of $98.3 million and $90.4 million, respectively, has been provided for net operating loss carryforwards and other deferred tax assets. We record a valuation allowance when it is more likely than not that some portion, or all, of the deferred tax assets will not be realized. We increased our valuation allowance by $3.6 million for the three months ended September 30, 2013, of which $3.5 million represents current period net operating losses and $0.1 million represents changes in other comprehensive income (loss).  We increased our valuation allowance by $9.8 million for the three months ended September 30, 2012, due to net operating losses. We increased our valuation allowance by $7.9 million for the nine months ended September 30, 2013, of which $8.0 million represents current period net operating losses, partially offset by $0.1 million, which represents changes in other comprehensive income (loss). We increased our valuation allowance by $9.6 million for the nine months ended September 30, 2012, due to net operating losses. Excluding the change in our valuation allowance, our effective tax rate would have been 38.3% and 66.4% benefit for the three months ended September 30, 2013 and 2012, respectively, and a 276.9% and 29.1% benefit for the nine months ended September 30, 2013 and 2012, respectively, primarily due to the mix of pre-tax income or loss earned in certain tax jurisdictions.
	As of September 30, 2013 and December 31, 2012, we had total unrecognized tax benefits of $6.9 million and $5.1 million, respectively, related to uncertain foreign tax positions, all of which, if recognized, would impact our effective tax rate. During the three months ended September 30, 2013 and 2012, we had an increase in uncertain tax positions of $0.7 million and $0.4 million, respectively, and $1.8 million and $1.5 million during the nine months ended September 30, 2013 and 2012, respectively, primarily related to uncertain tax positions in Europe. We recorded interest and penalties related to unrecognized tax benefits within our provision for income taxes. We believe that no current tax positions that have resulted in unrecognized tax benefits will significantly increase or decrease within one year.
	We file income tax returns in the U.S. federal jurisdiction and in various state and foreign jurisdictions. For our U.S. federal income tax returns, the statute of limitations has expired through the tax year ended December 31, 2003. As a result of net operating loss carryforwards from 2004, the statute of limitations remains open for all years subsequent to 2003. In addition, open tax years for state and foreign jurisdictions remain subject to examination.

Commitments_and_Contingencies

Commitments and Contingencies	9 Months Ended
	Sep. 30, 2013
Commitments and Contingencies	'
	10. Commitments and Contingencies
	Legal Proceedings. We received notice from the tax authorities in Brazil assessing R$5.9 million in connection with tax credits that were generated from the purchase of certain goods. The credits were subsequently applied against taxes owed. The tax authorities assert that the goods purchased were not eligible to earn a credit. We have appealed this assessment and contend that the tax credits were earned. While the outcome of this proceeding cannot be predicted with certainty, we do not expect this matter to have a material adverse effect upon our financial position, results of operations or cash flows.
	We and certain of our subsidiaries, from time to time, are parties to various other legal proceedings, claims and disputes that have arisen in the ordinary course of business. These claims may involve significant amounts, some of which would not be covered by insurance. A substantial settlement payment or judgment in excess of our accruals could have a material adverse effect on our financial position, results of operations or cash flows. While the outcome of these proceedings cannot be predicted with certainty, our management does not expect any of these existing matters, individually or in the aggregate, to have a material adverse effect upon our financial position, results of operations or cash flows.
	Asset Retirement Obligations.
	The changes in the aggregate carrying amount of our ARO liability are as follows:
		ARO Liability
		(In thousands)
	Balance at December 31, 2012	$	9,837
	Accretion expense		377
	Foreign currency translation		93
	Balance at September 30, 2013	$	10,307
	There have been no other material changes to our Commitments and Contingencies disclosed in our most recently filed Annual Report on Form 10-K.

Employee_Benefits

Employee Benefits	9 Months Ended
	Sep. 30, 2013
Employee Benefits	'
	11. Employee Benefits
	Retirement Plans.
	The components of net periodic benefit cost related to U.S. pension benefits are as follows:
		Three months ended							Nine months ended
		September 30,							September 30,
		2013			2012			2013					2012
		(in thousands)							(in thousands)
	Service cost	$	828		$	795		$		2,528		$		2,385
	Interest cost		1,384			1,394				4,179				4,185
	Expected return on plan assets		(1,654	)		(1,464	)			(4,959	)			(4,455	)
	Amortization of prior service cost		880			683				2,745				2,048
	Net periodic benefit cost	$	1,438		$	1,408		$		4,493		$		4,163
	We made contributions of $4.8 million and $6.8 million to our pension plan in the nine months ended September 30, 2013 and 2012, respectively.
	The components of net periodic benefit cost related to other post-retirement benefits are as follows:
		Three months ended							Nine months ended
		September 30,							September 30,
		2013			2012			2013					2012
		(in thousands)							(in thousands)
	Service cost	$	130		$	127		$		420		$		383
	Interest cost		285			305				870				915
	Amortization of prior service cost		161			150				525				450
	Net periodic benefit cost	$	576		$	582		$		1,815		$		1,748

Industry_Segment_and_Foreign_O

Industry Segment and Foreign Operations	9 Months Ended
	Sep. 30, 2013
Industry Segment and Foreign Operations	'
	12. Industry Segment and Foreign Operations
	We operate in one segment for the manufacturing and marketing of engineered polymers. In accordance with the provisions of ASC 280, “Segment Reporting,” our chief operating decision-maker has been identified as the President and Chief Executive Officer, who reviews operating results to make decisions about allocating resources and assessing performance for the entire company. Since we operate in one segment and in one group of similar products, all financial segment and product line information required by ASC 280 can be found in the condensed consolidated financial statements.
	We manufacture our products along the following primary product lines based upon polymer chemistry and process technologies:
	un-hydrogenated SBCs (“USBCs”);
	hydrogenated SBCs (“HSBCs”);
	Cariflex™ isoprene rubber and isoprene rubber latex; and
	compounds.
	Sales revenue for our four primary product lines is as follows:
		Three months ended					Nine months ended
		September 30,					September 30,
		2013		2012		2013				2012
		(in thousands)					(in thousands)
	USBCs	$	192,714	$	208,119	$		582,030	$		670,219
	HSBCs		98,572		103,400			311,603			353,921
	Cariflex™		28,231		24,193			84,504			76,643
	Compounds		7,187		6,685			22,635			23,799
	Other		405		238			987			2,122
		$	327,109	$	342,635	$		1,001,759	$		1,126,704
	For geographic reporting, sales revenue is attributed to the geographic location in which the customers’ facilities are located. Long-lived assets consist primarily of property, plant and equipment, which are attributed to the geographic location in which they are located and are presented at historical cost.
	Sales revenue and long-lived assets by geographic region are as follows:
		Three months ended					Nine months ended
		September 30,					September 30,
		2013		2012		2013				2012
		(in thousands)					(in thousands)
	Sales revenue:
	United States	$	99,726	$	103,114	$		313,963	$		375,453
	Germany		49,263		52,078			134,948			152,277
	Japan		20,341		23,561			57,472			64,757
	China		17,872		19,324			54,065			59,241
	Brazil		14,701		11,807			41,582			37,627
	France		12,534		12,361			35,729			39,188
	Belgium		9,751		10,745			32,865			36,340
	Italy		9,424		10,445			32,822			34,945
	Thailand		10,457		10,750			30,621			32,382
	United Kingdom		8,011		7,411			28,770			30,499
	Netherlands		6,118		6,076			22,332			26,867
	Malaysia		6,664		2,673			19,802			12,789
	Turkey		7,743		5,293			19,333			24,071
	Mexico		4,460		3,443			14,143			9,891
	Sweden		4,333		5,361			13,905			14,067
	Taiwan		3,649		4,744			13,588			14,784
	Canada		3,585		4,170			13,264			14,769
	Argentina		3,798		3,371			12,709			11,144
	Austria		3,699		4,467			9,769			14,622
	South Korea		2,532		4,068			9,691			12,457
	Poland		5,589		6,758			9,400			16,879
	Australia		507		4,348			7,492			13,128
	All other countries		22,352		26,267			73,494			78,527
		$	327,109	$	342,635	$		1,001,759	$		1,126,704
		September 30,		December 31,
		2013		2012
		(In thousands)
	Long-lived assets, at cost:
	United States	$	438,137	$	411,969
	France		122,061		118,275
	Brazil		77,612		79,585
	Germany		61,475		55,581
	Netherlands		25,874		15,255
	Taiwan		10,755		0
	China		6,997		5,906
	Japan		1,808		1,978
	All other countries		4,477		4,435
		$	749,196	$	692,984

Related_Party_Transactions

Related Party Transactions	9 Months Ended
	Sep. 30, 2013
Related Party Transactions	'
	13. Related Party Transactions
	We own a 50% equity investment in a SBC manufacturing joint venture with JSR Corporation (“JSR”) under the name of Kraton JSR Elastomers K.K. (“KJE”) located in Kashima, Japan. We and JSR separately, but with equal rights, participate in distributions in the sales of the thermoplastic rubber produced by KJE.
	The aggregate amounts of related-party transactions were as follows:
		Three months ended					Nine months ended
		September 30,					September 30,
		2013		2012		2013			2012
		(in thousands)					(in thousands)
	Purchases from related party	$	15,215	$	8,518	$		37,940	$	39,188
	Our due to related party is solely related to our commercial arrangement associated with KJE, which requires payment by each party within 150 days of invoice.

Variable_Interest_Entity

Variable Interest Entity	9 Months Ended
	Sep. 30, 2013
Variable Interest Entity	'
	14. Variable Interest Entity
	In February 2013, we executed definitive agreements providing for a 50/50 joint venture with Formosa Petrochemical Corporation (“FPCC”) to build, own and operate a 30 kiloton HSBC plant at FPCC’s petrochemical site in Mailiao, Taiwan. The joint venture company, Kraton Formosa Polymers Corporation (“KFPC”), is a Taiwan entity with each of Kraton and FPCC having equal representation on the board. Both Kraton and FPCC made an initial investment of approximately $15.2 million at inception, with an additional Kraton contribution of $15.0 million in August 2013. We have exclusive rights to purchase all production from KFPC. Additionally, we will be obligated to purchase a minimum volume each year, with the minimum obligation increasing over the first three years the plant is operational. As such, we have determined that we are the primary beneficiary of this variable interest entity and, therefore, have consolidated KFPC in our financial statements as of and for the nine months ended September 30, 2013 and have reflected FPCC’s ownership as a noncontrolling interest.
	The following table summarizes the fair value of KFPC assets and liabilities as of February 27, 2013 recorded upon initial consolidation in our condensed consolidated balance sheet and the carrying amounts of such assets and liabilities as of September 30, 2013, before intercompany eliminations.
		September 30,		February 27,
		2013		2013
		(In thousands)
	Cash and cash equivalents	$	48,900	$	30,348
	Other current assets		455		0
	Property, plant and equipment		10,742		0
	Intangible assets		10,257		0
	Other long-term assets		320		0
	Total assets	$	70,674	$	30,348
	Current liabilities		2,882		0
	Other long-term liabilities		7,138		0
	Total liabilities	$	10,020	$	0

Supplemental_Guarantor_Informa

Supplemental Guarantor Information	9 Months Ended
	Sep. 30, 2013
Supplemental Guarantor Information	'
	15. Supplemental Guarantor Information
	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 Performance Polymers, Inc. and Elastomers Holdings LLC, a U.S. holding company and wholly-owned subsidiary of Kraton Polymers LLC, collectively, (“the Guarantors”), fully and unconditionally guarantee on a joint and several basis, the Issuers’ obligations under the 6.75% senior notes. Our remaining subsidiaries are not guarantors of the 6.75% senior notes. We do not believe that separate financial statements and other disclosures concerning the guarantor subsidiaries would provide any additional information that would be material to investors in making an investment decision.
	KRATON PERFORMANCE POLYMERS, INC.
	CONDENSED CONSOLIDATING BALANCE SHEET
	September 30, 2013
	(Unaudited)
	(In thousands, except par value)
		Kraton			Kraton			Guarantor			Non‑Guarantor			Eliminations			Consolidated
					Polymers			Subsidiaries			Subsidiaries
					LLC (1)
	ASSETS
	Current assets:
	Cash and cash equivalents	$	0		$	0		$	10,454		$	134,176		$	0		$	144,630
	Receivables, net of allowances of $414		0			10			45,923			96,953			0			142,886
	Inventories of products		0			0			179,869			133,906			0			313,775
	Inventories of materials and supplies		0			0			8,485			2,209			0			10,694
	Deferred income taxes		0			0			5,768			3,264			0			9,032
	Other current assets		0			3,186			1,482			14,933			0			19,601
	Total current assets		0			3,196			251,981			385,441			0			640,618
	Property, plant and equipment, less accumulated depreciation of $346,587		0			49,525			231,383			121,701			0			402,609
	Intangible assets, less accumulated amortization of $76,152		0			35,920			22,713			(186	)		0			58,447
	Investment in consolidated subsidiaries		527,880			1,306,496			0			0			(1,834,376	)		0
	Investment in unconsolidated joint venture		0			813			0			12,941			0			13,754
	Debt issuance costs		0			6,319			2,018			1,419			0			9,756
	Deferred income taxes		0			0			0			617			0			617
	Other long-term assets		0			1,619			552,087			117,763			(645,422	)		26,047
	Total assets	$	527,880		$	1,403,888		$	1,060,182		$	639,696		$	(2,479,798	)	$	1,151,848
	LIABILITIES AND STOCKHOLDERS’ AND MEMBER’S EQUITY
	Current liabilities:
	Accounts payable-trade		0			99			35,354			57,740			0			93,193
	Other payables and accruals		0			1,969			21,259			16,459			0			39,687
	Deferred income taxes		0			0			0			412			0			412
	Due to related party		0			0			0			22,813			0			22,813
	Total current liabilities		0			2,068			56,613			97,424			0			156,105
	Long-term debt, net of current portion		0			351,028			0			0			0			351,028
	Deferred income taxes		0			10,642			5,768			4,945			0			21,355
	Other long-term liabilities		0			513,004			91,096			144,373			(645,422	)		103,051
	Total liabilities		0			876,742			153,477			246,742			(645,422	)		631,539
	Commitments and contingencies (note 10)
	Stockholders’ and member’s equity:
	Preferred stock, $0.01 par value; 100,000 shares authorized; none issued		0			0			0			0			0			0
	Common stock, $0.01 par value; 500,000 shares authorized; 32,528 shares issued and outstanding		325			0			0			0			0			325
	Additional paid in capital		361,627			0			0			0			0			361,627
	Member’s equity		0			527,880			959,792			346,704			(1,834,376	)		0
	Retained earnings		165,928			0			0			0			0			165,928
	Accumulated other comprehensive income (loss)		0			(734	)		(53,087	)		15,923			0			(37,898	)
	Kraton stockholders’ and member’s equity		527,880			527,146			906,705			362,627			(1,834,376	)		489,982
	Noncontrolling interest		0			0			0			30,327			0			30,327
	Total stockholders’ and member’s equity		527,880			527,146			906,705			392,954			(1,834,376	)		520,309
	Total liabilities and stockholders’ and member’s equity	$	527,880		$	1,403,888		$	1,060,182		$	639,696		$	(2,479,798	)	$	1,151,848
	(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.
	KRATON PERFORMANCE POLYMERS, INC.
	CONDENSED CONSOLIDATING BALANCE SHEET
	December 31, 2012
	(In thousands, except par value)
		Kraton			Kraton			Guarantor			Non‑Guarantor			Eliminations			Consolidated
					Polymers			Subsidiaries			Subsidiaries
					LLC (1)
	ASSETS
	Current assets:
	Cash and cash equivalents	$	0		$	0		$	80,903		$	142,263		$	0		$	223,166
	Receivables, net of allowances of $401		0			426			44,728			79,481			0			124,635
	Inventories of products		0			0			180,776			159,547			0			340,323
Inventories of materials and supplies		0			0			8,013			2,318			0			10,331
Deferred income taxes		0			0			5,768			2,101			0			7,869
Other current assets		0			3,787			691			23,885			0			28,363
Total current assets		0			4,213			320,879			409,595			0			734,687
Property, plant and equipment, less accumulated depreciation of $311,779		0			56,626			222,956			101,623			0			381,205
Intangible assets, less accumulated amortization of $68,531		0			41,056			22,337			0			0			63,393
Investment in consolidated subsidiaries		526,725			1,258,814			0			0			(1,785,539	)		0
Investment in unconsolidated joint venture		0			813			0			12,769			0			13,582
Debt issuance costs		0			10,846			0			0			0			10,846
Deferred income taxes		0			0			0			79			0			79
Other long-term assets		0			1,500			480,756			193,141			(650,000	)		25,397
Total assets	$	526,725		$	1,373,868		$	1,046,928		$	717,207		$	(2,435,539	)	$	1,229,189
LIABILITIES AND STOCKHOLDERS’ AND MEMBER’S EQUITY
Current liabilities:
Current portion of long-term debt	$	0		$	15,074		$	0		$	0		$	0		$	15,074
Accounts payable-trade		0			2,072			44,304			52,791			0			99,167
Other payables and accruals		0			8,995			21,744			20,239			0			50,978
Due to related party		0			0			0			16,080			0			16,080
Deferred income taxes		0			0			0			513			0			513
Total current liabilities		0			26,141			66,048			89,623			0			181,812
Long-term debt, net of current portion		0			432,943			0			0			0			432,943
Deferred income taxes		0			12,206			5,768			4,299			0			22,273
Other long-term liabilities		0			377,032			89,825			283,089			(650,000	)		99,946
Total liabilities		0			848,322			161,641			377,011			(650,000	)		736,974
Commitments and contingencies (note 10)
Stockholders’ and member’s equity:
Preferred stock, $0.01 par value; 100,000 shares authorized; none issued		0			0			0			0			0			0
Common stock, $0.01 par value; 500,000 shares authorized; 32,277 shares issued and outstanding		323			0			0			0			0			323
Additional paid in capital		354,957			0			0			0			0			354,957
Member’s equity		0			526,725			938,374			320,440			(1,785,539	)		0
Retained earnings		171,445			0			0			0			0			171,445
Accumulated other comprehensive income (loss)		0			(1,179	)		(53,087	)		19,756			0			(34,510	)
Total stockholders’ and member’s equity		526,725			525,546			885,287			340,196			(1,785,539	)		492,215
Total liabilities and stockholders’ and member’s equity	$	526,725		$	1,373,868		$	1,046,928		$	717,207		$	(2,435,539	)	$	1,229,189
(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.
KRATON PERFORMANCE POLYMERS, INC.
CONDENSED CONSOLIDATING STATEMENT OF OPERATIONS
Three months ended September 30, 2013
(Unaudited)
(In thousands)
	Kraton			Kraton			Guarantor			Non‑Guarantor			Eliminations			Consolidated
				Polymers			Subsidiaries			Subsidiaries
				LLC (1)
Sales revenue	$	0		$	0		$	156,550		$	210,570		$	(40,011	)	$	327,109
Cost of goods sold		0			(244	)		134,863			185,051			(40,011	)		279,659
Gross profit		0			244			21,687			25,519			0			47,450
Operating expenses:
Research and development		0			0			4,307			3,106			0			7,413
Selling, general and administrative		0			6			15,268			7,156			0			22,430
Depreciation and amortization		0			4,080			7,902			3,832			0			15,814
Total operating expenses		0			4,086			27,477			14,094			0			45,657
Earnings (loss) in consolidated subsidiaries		(5,852	)		6,621			0			0			(769	)		0
Earnings of unconsolidated joint venture		0			0			0			117			0			117
Interest expense (income), net		0			9,381			(3,766	)		126			0			5,741
Income (loss) before income taxes		(5,852	)		(6,602	)		(2,024	)		11,416			(769	)		(3,831	)
Income tax expense (benefit)		0			(750	)		11			2,760			0			2,021
Consolidated net income (loss)		(5,852	)		(5,852	)		(2,035	)		8,656			(769	)		(5,852	)
Net loss attributable to noncontrolling interest		0			0			0			(254	)		0			(254	)
Net income (loss) attributable to Kraton	$	(5,852	)	$	(5,852	)	$	(2,035	)	$	8,910		$	(769	)	$	(5,598	)
(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.
KRATON PERFORMANCE POLYMERS, INC.
CONDENSED CONSOLIDATING STATEMENT OF OPERATIONS
Three months ended September 30, 2012
(Unaudited)
(In thousands)
	Kraton			Kraton			Guarantor			Non‑Guarantor			Eliminations			Consolidated
				Polymers			Subsidiaries			Subsidiaries
				LLC (1)
Sales revenue	$	0		$	0		$	163,070		$	218,801		$	(39,236	)	$	342,635
Cost of goods sold		0			(210	)		147,891			191,437			(39,326	)		299,882
Gross profit		0			210			15,179			27,364			0			42,753
Operating expenses:
Research and development		0			0			4,770			2,631			0			7,401
Selling, general and administrative		0			11			16,151			7,285			0			23,447
Depreciation and amortization		0			4,079			8,715			3,315			0			16,109
Impairment of long-lived assets		0			0			5,434			0			0			5,434
Total operating expenses		0			4,090			35,070			13,231			0			52,391
Loss in consolidated subsidiaries		(15,499	)		(3,041	)		0			0			18,540			0
Earnings of unconsolidated joint venture		0			0			0			133			0			133
Interest expense (income), net		0			9,696			(3,632	)		1,570			0			7,634
Income (loss) before income taxes		(15,499	)		(16,617	)		(16,259	)		12,696			18,540			(17,139	)
Income tax expense (benefit)		0			(1,118	)		(661	)		139			0			(1,640	)
Net income (loss)	$	(15,499	)	$	(15,499	)	$	(15,598	)	$	12,557		$	18,540		$	(15,499	)
(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.
KRATON PERFORMANCE POLYMERS, INC.
CONDENSED CONSOLIDATING STATEMENT OF OPERATIONS
Nine months ended September 30, 2013
(Unaudited)
(In thousands)
	Kraton			Kraton			Guarantor			Non‑Guarantor			Eliminations			Consolidated
				Polymers			Subsidiaries			Subsidiaries
				LLC (1)
Sales revenue	$	0		$	0		$	498,775		$	624,015		$	(121,031	)	$	1,001,759
Cost of goods sold		0			1,720			407,224			546,624			(121,031	)		834,537
Gross profit (loss)		0			(1,720	)		91,551			77,391			0			167,222
Operating expenses:
Research and development		0			0			13,087			10,685			0			23,772
Selling, general and administrative		0			154			50,840			22,554			0			73,548
Depreciation and amortization		0			12,239			23,521			10,893			0			46,653
Total operating expenses		0			12,393			87,448			44,132			0			143,973
Earnings (loss) in consolidated subsidiaries		(5,699	)		41,165			0			0			(35,466	)		0
Earnings of unconsolidated joint venture		0			0			0			372			0			372
Interest expense (income), net		0			34,315			(10,886	)		1,519			0			24,948
Income (loss) before income taxes		(5,699	)		(7,263	)		14,989			32,112			(35,466	)		(1,327	)
Income tax expense (benefit)		0			(1,564	)		32			5,904			0			4,372
Consolidated net income (loss)		(5,699	)		(5,699	)		14,957			26,208			(35,466	)		(5,699	)
Net loss attributable to noncontrolling interest		0			0			0			(182	)		0			(182	)
Net income (loss) attributable to Kraton	$	(5,699	)	$	(5,699	)	$	14,957		$	26,390		$	(35,466	)	$	(5,517	)
(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.
KRATON PERFORMANCE POLYMERS, INC.
CONDENSED CONSOLIDATING STATEMENT OF OPERATIONS
Nine months ended September 30, 2012
(Unaudited)
(In thousands)
	Kraton			Kraton			Guarantor			Non‑Guarantor			Eliminations			Consolidated
				Polymers			Subsidiaries			Subsidiaries
				LLC (1)
Sales revenue	$	0		$	0		$	558,547		$	685,969		$	(117,812	)	$	1,126,704
Cost of goods sold		0			(1,295	)		473,510			580,549			(117,812	)		934,952
Gross profit		0			1,295			85,037			105,420			0			191,752
Operating expenses:
Research and development		0			0			14,483			8,474			0			22,957
Selling, general and administrative		0			11			52,124			24,088			0			76,223
Depreciation and amortization		0			12,238			25,874			9,731			0			47,843
Impairment of long-lived assets		0			0			5,434			0			0			5,434
Total operating expenses		0			12,249			97,915			42,293			0			152,457
Earnings in consolidated subsidiaries		13,261			51,692			0			0			(64,953	)		0
Earnings of unconsolidated joint venture		0			0			0			433			0			433
Interest expense (income), net		0			29,028			(11,145	)		4,223			0			22,106
Income (loss) before income taxes		13,261			11,710			(1,733	)		59,337			(64,953	)		17,622
Income tax expense (benefit)		0			(1,551	)		(1,778	)		7,690			0			4,361
Net income	$	13,261		$	13,261		$	45		$	51,647		$	(64,953	)	$	13,261
(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.
KRATON PERFORMANCE POLYMERS, INC.
CONDENSED CONSOLIDATING STATEMENT OF COMPREHENSIVE INCOME (LOSS)
Three months ended September 30, 2013
(Unaudited)
(In thousands)
	Kraton			Kraton			Guarantor			Non‑Guarantor			Eliminations			Consolidated
				Polymers			Subsidiaries			Subsidiaries
				LLC (1)
Net income (loss) attributable to Kraton	$	(5,852	)	$	(5,852	)	$	(2,035	)	$	8,910		$	(769	)	$	(5,598	)
Other comprehensive income (loss):
Foreign currency translation adjustments, net of tax of $0		0			(201	)		0			9,712			0			9,511
Unrealized gain (loss) of net investment hedge, net of tax of $0		0			36			0			(301	)		0			(265	)
Other comprehensive income (loss), net of tax		0			(165	)		0			9,411			0			9,246
Comprehensive income (loss) attributable to Kraton		(5,852	)		(6,017	)		(2,035	)		18,321			(769	)		3,648
Comprehensive income attributable to noncontrolling interest		0			0			0			178			0			178
Consolidated comprehensive income (loss)	$	(5,852	)	$	(6,017	)	$	(2,035	)	$	18,499		$	(769	)	$	3,826
(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.
KRATON PERFORMANCE POLYMERS, INC.
CONDENSED CONSOLIDATING STATEMENT OF COMPREHENSIVE INCOME (LOSS)
Three months ended September 30, 2012
(Unaudited)
(In thousands)
	Kraton			Kraton			Guarantor			Non‑Guarantor			Eliminations			Consolidated
				Polymers			Subsidiaries			Subsidiaries
				LLC (1)
Net income (loss) attributable to Kraton	$	(15,499	)	$	(15,499	)	$	(15,598	)	$	12,557		$	18,540		$	(15,499	)
Other comprehensive income (loss):
Foreign currency translation adjustments, net of tax of $0		0			(122	)		1			7,141			0			7,020
Unrealized loss on interest rate swaps, net of tax of $0		0			(9	)		0			0			0			(9	)
Unrealized loss of net investment hedge, net of tax of $0		0			(1,155	)		0			0			0			(1,155	)
Other comprehensive income (loss), net of tax		0			(1,286	)		1			7,141			0			5,856
Consolidated comprehensive income (loss)	$	(15,499	)	$	(16,785	)	$	(15,597	)	$	19,698		$	18,540		$	(9,643	)
(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.
KRATON PERFORMANCE POLYMERS, INC.
CONDENSED CONSOLIDATING STATEMENT OF COMPREHENSIVE INCOME (LOSS)
Nine months ended September 30, 2013
(Unaudited)
(In thousands)
	Kraton			Kraton			Guarantor			Non‑Guarantor			Eliminations			Consolidated
				Polymers			Subsidiaries			Subsidiaries
				LLC (1)
Net income (loss) attributable to Kraton	$	(5,699	)	$	(5,699	)	$	14,957		$	26,390		$	(35,466	)	$	(5,517	)
Other comprehensive income (loss):
Foreign currency translation adjustments, net of tax of $0		0			(203	)		0			(3,532	)		0			(3,735	)
Unrealized gain on interest rate swaps, net of tax of $0		0			837			0			0			0			837
Unrealized loss of net investment hedge, net of tax of $0		0			(189	)		0			(301	)		0			(490	)
Other comprehensive income (loss), net of tax		0			445			0			(3,833	)		0			(3,388	)
Comprehensive income (loss) attributable to Kraton		(5,699	)		(5,254	)		14,957			22,557			(35,466	)		(8,905	)
Comprehensive income attributable to noncontrolling interest		0			0			0			111			0			111
Consolidated comprehensive income (loss)	$	(5,699	)	$	(5,254	)	$	14,957		$	22,668		$	(35,466	)	$	(8,794	)
(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.
KRATON PERFORMANCE POLYMERS, INC.
CONDENSED CONSOLIDATING STATEMENT OF COMPREHENSIVE INCOME
Nine months ended September 30, 2012
(Unaudited)
(In thousands)
	Kraton			Kraton			Guarantor			Non‑Guarantor			Eliminations			Consolidated
				Polymers			Subsidiaries			Subsidiaries
				LLC (1)
Net income attributable to Kraton	$	13,261		$	13,261		$	45		$	51,647		$	(64,953	)	$	13,261
Other comprehensive income (loss):
Foreign currency translation adjustments, net of tax of $0		0			(190	)		0			(5,835	)		0			(6,025	)
Unrealized loss on interest rate swaps, net of tax of $0		0			(143	)		0			0			0			(143	)
Unrealized gain of net investment hedge, net of tax of $0		0			648			0			0			0			648
Other comprehensive income (loss), net of tax		0			315			0			(5,835	)		0			(5,520	)
Consolidated comprehensive income	$	13,261		$	13,576		$	45		$	45,812		$	(64,953	)	$	7,741
(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.
KRATON PERFORMANCE POLYMERS, INC.
CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS
Nine months ended September 30, 2013
(Unaudited)
(In thousands)
	Kraton			Kraton			Guarantor			Non‑Guarantor			Eliminations			Consolidated
				Polymers			Subsidiaries			Subsidiaries
				LLC (1)
Cash flows provided by (used in) operating activities	$	0		$	14,859		$	(65,805	)	$	109,033		$	0		$	58,087
Cash flows provided by (used in) investing activities:
Repayments of intercompany loans		0			68,962			0			0			(68,962	)		0
Purchase of property, plant and equipment		0			0			(26,414	)		(31,508	)		0			(57,922	)
Purchase of software and other intangibles		0			0			(2,861	)		(245	)		0			(3,106	)
Settlement of net investment hedge		0			(2,490	)		0			0			0			(2,490	)
Net cash provided by (used in) investing activities		0			66,472			(29,275	)		(31,753	)		(68,962	)		(63,518	)
Cash flows provided by (used in) financing activities:
Proceeds from debt		0			0			40,000			0			0			40,000
Repayments of debt		0			(96,875	)		(40,000	)		0			0			(136,875	)
Capital lease payments		0			0			(950	)		0			0			(950	)
Cash contributions from member		0			15,544			0			(15,544	)		0			0
Cash distributions to member		(310	)		0			0			310			0			0
Contribution from noncontrolling interest		0			0			0			30,216			0			30,216
Proceeds from the exercise of stock options		310			0			0			0			0			310
Debt issuance costs		0			0			(3,310	)		(1,484	)		0			(4,794	)
Proceeds from (repayments of) intercompany loans		0			0			28,891			(97,853	)		68,962			0
Net cash provided by (used in) financing activities		0			(81,331	)		24,631			(84,355	)		68,962			(72,093	)
Effect of exchange rate differences on cash		0			0			0			(1,012	)		0			(1,012	)
Net decrease in cash and cash equivalents		0			0			(70,449	)		(8,087	)		0			(78,536	)
Cash and cash equivalents, beginning of period		0			0			80,903			142,263			0			223,166
Cash and cash equivalents, end of period	$	0		$	0		$	10,454		$	134,176		$	0		$	144,630
(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.
KRATON PERFORMANCE POLYMERS, INC.
CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS
Nine months ended September 30, 2012
(Unaudited)
(In thousands)
	Kraton			Kraton			Guarantor			Non‑Guarantor			Eliminations			Consolidated
				Polymers			Subsidiaries			Subsidiaries
				LLC (1)
Cash flows provided by (used in) operating activities	$	0		$	(69,068	)	$	136,814		$	34,442		$	0		$	102,188
Cash flows provided by (used in) investing activities:
Repayments of intercompany loans		0			14,132			0			0			(14,132	)		0
Purchase of property, plant and equipment		0			0			(33,094	)		(9,342	)		0			(42,436	)
Purchase of software and other intangibles		0			0			(1,842	)		53			0			(1,789	)
Settlement of net investment hedge		0			1,648			0			0			0			1,648
Net cash provided by (used in) investing activities		0			15,780			(34,936	)		(9,289	)		(14,132	)		(42,577	)
Cash flows provided by (used in) financing activities:
Proceeds from debt		0			101,250			0			0			0			101,250
Repayments of debt		0			(45,626	)		0			0			0			(45,626	)
Cash contributions from member		0			820			0			0			(820	)		0
Cash distributions to member		(820	)		0			0			0			820			0
Proceeds from the exercise of stock options		820			0			0			0			0			820
Debt issuance costs		0			(3,156	)		0			0			0			(3,156	)
Proceeds from (repayments of) intercompany loans		0			0			(33,722	)		19,590			14,132			0
Net cash provided by (used in) financing activities		0			53,288			(33,722	)		19,590			14,132			53,288
Effect of exchange rate differences on cash		0			0			0			793			0			793
Net increase in cash and cash equivalents		0			0			68,156			45,536			0			113,692
Cash and cash equivalents, beginning of period		0			0			6,030			82,549			0			88,579
Cash and cash equivalents, end of period	$	0		$	0		$	74,186		$	128,085		$	0		$	202,271
(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.

Subsequent_Events

Subsequent Events	9 Months Ended
	Sep. 30, 2013
Subsequent Events	'
	16. Subsequent Events
	We have evaluated significant events and transactions that occurred after the balance sheet date and determined that there were no events or transactions other than those disclosed above that would require recognition or disclosure in our condensed consolidated financial statements for the period ended September 30, 2013.

General_Policies

General (Policies)	9 Months Ended
	Sep. 30, 2013
Description of our Business	'
	Description of our Business. We are a leading global producer of styrenic block copolymers (“SBCs”) and other engineered polymers. We market our products under the Kraton®, CariflexTM and NEXARTM brands. SBCs are highly-engineered synthetic elastomers, which we invented and commercialized almost 50 years ago, that enhance the performance of numerous end use products by imparting greater flexibility, resilience, strength, durability and processability.
	Our polymers are typically formulated or compounded with other products to achieve improved, customer-specific performance characteristics in a variety of applications. We seek to maximize the value of our product portfolio by emphasizing complex or specialized polymers and innovations that yield higher margins. We sometimes refer to these complex or specialized polymers or innovations as being more “differentiated.”
	Our products are found in many everyday applications, including personal care products such as disposable diapers and the rubberized grips of toothbrushes, razor blades and power tools. Our products are also used to impart tack and shear properties in a wide variety of adhesive products and to impart characteristics such as flexibility and durability in sealants and corrosion resistance in coatings. Our paving and roofing applications provide durability, extending road and roof life.
	We also produce Cariflex isoprene rubber and isoprene rubber latex. Our Cariflex products are highly-engineered, non-SBC synthetic substitutes for natural rubber and natural rubber latex. Our Cariflex products, which have not been found to contain the proteins present in natural rubber latex and are, therefore, not known to cause allergies, are used in applications such as surgical gloves and condoms. We believe the versatility of Cariflex provides opportunities for new, high-margin applications.
	We have a portfolio of innovations at various stages of development and commercialization, including
	polyvinyl chloride alternatives for wire and cable, and medical applications;
	polymers and compounds for soft skin and coated fabric applications for transportation and consumer markets;
	our NEXAR family of membrane polymers for water filtration, heating, ventilation, air conditioning and breathable fabrics; and
	synthetic cement formulations and other oilfield applications.
	We manufacture our polymers at five manufacturing facilities globally, including our flagship facility in Belpre, Ohio, as well as facilities in Germany, France, Brazil and Japan. The facility in Japan is operated by an unconsolidated manufacturing joint venture. The terms “Kraton,” “our company,” “we,” “our,” “ours” and “us” as used in this report refer collectively to Kraton Performance Polymers, Inc. and its consolidated subsidiaries.
Basis of Presentation	'
	Basis of Presentation. The accompanying unaudited condensed consolidated financial statements presented herein are for us and our consolidated subsidiaries, each of which is a wholly-owned subsidiary, except our 50% investment in our joint venture, Kraton Formosa Polymers Corporation (“KFPC”), located in Mailiao, Taiwan. KFPC is a variable interest entity for which we have determined that we are the primary beneficiary and, therefore, have consolidated into our financial statements. Our 50% investment in our joint venture located in Kashima, Japan is accounted for under the equity method of accounting. All significant intercompany transactions have been eliminated. These interim financial statements should be read in conjunction with the consolidated financial statements included in our Annual Report on Form 10-K for the year ended December 31, 2012 and reflect all normal recurring adjustments that are, in the opinion of management, necessary to present fairly our results of operations and financial position. Amounts reported in our Condensed Consolidated Statements of Operations are not necessarily indicative of amounts expected for the respective annual periods or any other interim period, in particular due to the effect of seasonal changes and weather conditions that typically affect our sales into our Paving and Roofing end use market.
	Our significant accounting policies have been disclosed in Note 1 Description of Business, Basis of Presentation and Significant Accounting Policies in our most recent Annual Report on Form 10-K. There have been no changes to the policies disclosed therein. The accompanying unaudited condensed consolidated financial statements we present in this report have been prepared in accordance with those policies.
Use of Estimates	'
	Use of Estimates. The preparation of condensed consolidated financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the condensed consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.
	Significant items subject to such estimates and assumptions include
	the useful lives of fixed assets;
	allowances for doubtful accounts and sales returns;
	the valuation of derivatives, deferred tax assets, property, plant and equipment, inventory, investments and share-based compensation; and
	liabilities for employee benefit obligations, asset retirement obligations (“ARO”), income tax uncertainties and other contingencies.
Income Tax in Interim Periods	'
	Income Tax in Interim Periods. We conduct operations in separate legal entities in different jurisdictions. As a result, income tax amounts are reflected in these condensed consolidated financial statements for each of those jurisdictions. Tax laws and tax rates vary substantially in these jurisdictions and are subject to change based on the political and economic climate in those countries. We file our tax returns in accordance with our interpretations of each jurisdiction’s tax laws. We record our tax provision or benefit on an interim basis using the estimated annual effective tax rate. This rate is applied to the current period ordinary income or loss to determine the income tax provision or benefit allocated to the interim period.
	Losses from jurisdictions for which no benefit can be realized and the income tax effects of unusual and infrequent items are excluded from the estimated annual effective tax rate. Valuation allowances are provided against the future tax benefits that arise from the losses in jurisdictions for which no benefit can be realized. The effects of unusual and infrequent items are recognized in the impacted interim period as discrete items.
	The estimated annual effective tax rate may be significantly affected by nondeductible expenses and by our projected earnings mix by tax jurisdiction. Adjustments to the estimated annual effective income tax rate are recognized in the period during which such estimates are revised.
	We have established valuation allowances against a variety of deferred tax assets, including net operating loss carryforwards, foreign tax credits and other income tax credits. Valuation allowances take into consideration our ability to realize these deferred tax assets and reduce the value of such assets to the amount that is deemed more likely than not to be recoverable. Our ability to realize these deferred tax assets is dependent on achieving our forecast of future taxable operating income over an extended period of time. We review our forecast in relation to actual results and expected trends on a quarterly basis. If we fail to achieve our operating income targets, we may change our assessment regarding the recoverability of our net deferred tax assets and such change could result in a valuation allowance being recorded against some or all of our net deferred tax assets. A change in our valuation allowance would impact our income tax expense/benefit and our stockholders’ equity and could have a significant impact on our results of operations or financial condition in future periods.

Detail_of_Certain_Balance_Shee1

Detail of Certain Balance Sheet Accounts (Tables)	9 Months Ended
	Sep. 30, 2013
Detail of Certain Balance Sheet Accounts	'
		September 30,			December 31,
		2013			2012
		(In thousands)
	Inventories of products:
	Finished products	$	229,651		$	260,510
	Work in progress		2,367			6,759
	Raw materials		81,757			73,054
	Total inventories of products	$	313,775		$	340,323
	Other payables and accruals:
	Employee related	$	12,704		$	13,423
	Income taxes payable		2,343			3,638
	Other		24,640			33,917
	Total other payables and accruals	$	39,687		$	50,978
	Other long-term liabilities:
	Pension and other postretirement benefits	$	84,889		$	84,005
	Other		18,162			15,941
	Total other long-term liabilities	$	103,051		$	99,946
	Accumulated other comprehensive loss:
	Foreign currency translation adjustments	$	23,221		$	26,956
	Net unrealized loss on interest rate swaps		0			(837	)
	Net unrealized loss on net investment hedge		(1,926	)		(1,436	)
	Pension liability		(59,193	)		(59,193	)
	Total accumulated other comprehensive loss	$	(37,898	)	$	(34,510	)

Earnings_Per_Share_EPS_Tables

Earnings Per Share ("EPS") (Tables)	9 Months Ended
	Sep. 30, 2013
Effects of Share-Based Compensation Awards on Diluted Weighted-Average Number of Shares Outstanding used in Calculating Diluted Earnings Per Share	'
	The effects of share-based compensation awards on the diluted weighted-average number of shares outstanding used in calculating diluted EPS are as follows:
		Three months ended											Three months ended
		30-Sep-13											30-Sep-12
		Net			Weighted				Loss				Net			Weighted				Loss
		Loss			Average				Per				Loss			Average				Per
		Attributable			Shares				Share				Attributable			Shares				Share
		to Kraton			Outstanding								to Kraton			Outstanding
		(In thousands, except per share data)											(In thousands, except per share data)
	Basic:
	As reported	$	(5,598	)		32,528						$		(15,499	)		32,251
	Amounts allocated to unvested restricted shares		78			(455	)							148			(308	)
	Amounts available to common stockholders		(5,520	)		32,073		$		(0.17	)			(15,351	)		31,943		$		(0.48	)
	Diluted:
	Amounts allocated to unvested restricted shares		(78	)		455								(148	)		308
	Non participating share units		0			0								0			0
	Stock options added under the treasury stock method		0			0								0			0
	Amounts reallocated to unvested restricted shares		78			(455	)							148			(308	)
	Amounts available to stockholders and assumed conversions	$	(5,520	)		32,073		$		(0.17	)	$		(15,351	)		31,943		$		(0.48	)
		Nine months ended											Nine months ended
		30-Sep-13											30-Sep-12
		Net			Weighted				Loss				Net			Weighted				Earnings
		Loss			Average				Per				Income			Average				Per
		Attributable			Shares				Share				Attributable			Shares				Share
		to Kraton			Outstanding								to Kraton			Outstanding
		(In thousands, except per share data)											(In thousands, except per share data)
	Basic:
	As reported	$	(5,517	)		32,471						$		13,261			32,210
	Amounts allocated to unvested restricted shares		68			(402	)							(117	)		(283	)
	Amounts available to common stockholders		(5,449	)		32,069		$		(0.17	)			13,144			31,927		$		0.41
	Diluted:
	Amounts allocated to unvested restricted shares		(68	)		402								117			283
	Non participating share units		0			0								0			29
	Stock options added under the treasury stock method		0			0								0			246
	Amounts reallocated to unvested restricted shares		68			(402	)							(116	)		(283	)
	Amounts available to stockholders and assumed conversions	$	(5,449	)		32,069		$		(0.17	)	$		13,145			32,202		$		0.41

LongTerm_Debt_Tables

Long-Term Debt (Tables)	9 Months Ended
	Sep. 30, 2013
Long-Term Debt	'
	Long-term debt consists of the following:
		September 30,		December 31,
		2013		2012
		(In thousands)
	Term loans	$	0	$	96,875
	6.75% unsecured notes		351,028		351,142
	Total long-term debt		351,028		448,017
	Less current portion of long-term debt		0		15,074
	Long-term debt, less current portion	$	351,028	$	432,943
Principal Payments on Outstanding Total Debt	'
	Debt Maturities. The remaining principal payments on our outstanding total debt as of September 30, 2013, are as follows:
		Principal
		Payments
		(In thousands)
	December 31:
	2019		350,000
	Total debt	$	350,000

Fair_Value_Measurements_Financ1

Fair Value Measurements, Financial Instruments and Credit Risk (Tables)	9 Months Ended
	Sep. 30, 2013
Summary of Measurement of Financial Assets and Liabilities at Fair Value on Recurring Basis	'
	Our assessment of the significance of a particular input to the fair value measurement requires judgment, which judgment may affect the valuation of their fair value and their placement within the fair value hierarchy levels.
		Balance Sheet Location		September 30,				Fair Value Measurements at Reporting Date Using
				2013				Quoted Prices				Significant						Significant
								in Active				Other						Unobservable
								Markets for				Observable						Inputs
								Identical Assets				Inputs						(Level 3)
								(Level 1)				(Level 2)
								(In thousands)
	Retirement plan asset—noncurrent	Other long-term assets			1,672					1,672			0						0
	Derivative liability—current	Other payables and accruals			(22	)				0			(22	)					0
	Total			$	1,650			$		1,672		$	(22	)			$		0
		Balance Sheet Location		December 31,				Fair Value Measurements at Reporting Date Using
				2012				Quoted Prices				Significant				Significant
								in Active				Other				Unobservable
								Markets for				Observable				Inputs
								Identical Assets				Inputs				(Level 3)
								(Level 1)				(Level 2)
								(In thousands)
	Derivative asset—current	Other current assets		$	34			$		0		$	34			$		0
	Retirement plan asset—noncurrent	Other long-term assets			860					860			0					0
	Derivative liability—current	Other payables and accruals			(578	)				0			(578	)				0
	Derivative liability—noncurrent	Other long-term liabilities			(258	)				0			(258	)				0
	Total			$	58			$		860		$	(802	)		$		0
Carrying Value and Approximate Fair Value of Long-Term Debt	'
	The following table presents the carrying values and approximate fair values of our long-term debt.
		September 30, 2013														December 31, 2012
		Carrying							Fair								Carrying				Fair
		Value							Value								Value				Value
		(In thousands)
	Term loans	$	0				$				0				$			96,875		$		96,875
	6.75% unsecured notes	$	351,028				$				358,810				$			351,142		$		364,000

Commitments_and_Contingencies_

Commitments and Contingencies (Tables)	9 Months Ended
	Sep. 30, 2013
Changes in Aggregate Carrying Amount of Asset Retirement Obligation Liability	'
	The changes in the aggregate carrying amount of our ARO liability are as follows:
		ARO Liability
		(In thousands)
	Balance at December 31, 2012	$	9,837
	Accretion expense		377
	Foreign currency translation		93
	Balance at September 30, 2013	$	10,307

Employee_Benefits_Tables

Employee Benefits (Tables)	9 Months Ended
	Sep. 30, 2013
U.S. Retirement Benefit Plan	'
Components of Net Periodic Benefit Cost	'
	The components of net periodic benefit cost related to U.S. pension benefits are as follows:
		Three months ended							Nine months ended
		September 30,							September 30,
		2013			2012			2013					2012
		(in thousands)							(in thousands)
	Service cost	$	828		$	795		$		2,528		$		2,385
	Interest cost		1,384			1,394				4,179				4,185
	Expected return on plan assets		(1,654	)		(1,464	)			(4,959	)			(4,455	)
	Amortization of prior service cost		880			683				2,745				2,048
	Net periodic benefit cost	$	1,438		$	1,408		$		4,493		$		4,163
Post-Retirement Benefits Other Than Pensions	'
Components of Net Periodic Benefit Cost	'
	The components of net periodic benefit cost related to other post-retirement benefits are as follows:
		Three months ended							Nine months ended
		September 30,							September 30,
		2013			2012			2013					2012
		(in thousands)							(in thousands)
	Service cost	$	130		$	127		$		420		$		383
	Interest cost		285			305				870				915
	Amortization of prior service cost		161			150				525				450
	Net periodic benefit cost	$	576		$	582		$		1,815		$		1,748

Industry_Segment_and_Foreign_O1

Industry Segment and Foreign Operations (Tables)	9 Months Ended
	Sep. 30, 2013
Sales Revenue for Primary Product Lines	'
	Sales revenue for our four primary product lines is as follows:
		Three months ended					Nine months ended
		September 30,					September 30,
		2013		2012		2013				2012
		(in thousands)					(in thousands)
	USBCs	$	192,714	$	208,119	$		582,030	$		670,219
	HSBCs		98,572		103,400			311,603			353,921
	Cariflex™		28,231		24,193			84,504			76,643
	Compounds		7,187		6,685			22,635			23,799
	Other		405		238			987			2,122
		$	327,109	$	342,635	$		1,001,759	$		1,126,704
Sales Revenue by Geographic Region	'
	Sales revenue and long-lived assets by geographic region are as follows:
		Three months ended					Nine months ended
		September 30,					September 30,
		2013		2012		2013				2012
		(in thousands)					(in thousands)
	Sales revenue:
	United States	$	99,726	$	103,114	$		313,963	$		375,453
	Germany		49,263		52,078			134,948			152,277
	Japan		20,341		23,561			57,472			64,757
	China		17,872		19,324			54,065			59,241
	Brazil		14,701		11,807			41,582			37,627
	France		12,534		12,361			35,729			39,188
	Belgium		9,751		10,745			32,865			36,340
	Italy		9,424		10,445			32,822			34,945
	Thailand		10,457		10,750			30,621			32,382
	United Kingdom		8,011		7,411			28,770			30,499
	Netherlands		6,118		6,076			22,332			26,867
	Malaysia		6,664		2,673			19,802			12,789
	Turkey		7,743		5,293			19,333			24,071
	Mexico		4,460		3,443			14,143			9,891
	Sweden		4,333		5,361			13,905			14,067
	Taiwan		3,649		4,744			13,588			14,784
	Canada		3,585		4,170			13,264			14,769
	Argentina		3,798		3,371			12,709			11,144
	Austria		3,699		4,467			9,769			14,622
	South Korea		2,532		4,068			9,691			12,457
	Poland		5,589		6,758			9,400			16,879
	Australia		507		4,348			7,492			13,128
	All other countries		22,352		26,267			73,494			78,527
		$	327,109	$	342,635	$		1,001,759	$		1,126,704
Long-Lived Assets by Geographic Region	'
		September 30,		December 31,
		2013		2012
		(In thousands)
	Long-lived assets, at cost:
	United States	$	438,137	$	411,969
	France		122,061		118,275
	Brazil		77,612		79,585
	Germany		61,475		55,581
	Netherlands		25,874		15,255
	Taiwan		10,755		0
	China		6,997		5,906
	Japan		1,808		1,978
	All other countries		4,477		4,435
		$	749,196	$	692,984

Related_Party_Transactions_Tab

Related Party Transactions (Tables)	9 Months Ended
	Sep. 30, 2013
Aggregate Amounts of Related-Party Transactions	'
	The aggregate amounts of related-party transactions were as follows:
		Three months ended					Nine months ended
		September 30,					September 30,
		2013		2012		2013			2012
		(in thousands)					(in thousands)
	Purchases from related party	$	15,215	$	8,518	$		37,940	$	39,188

Variable_Interest_Entity_Table

Variable Interest Entity (Tables)	9 Months Ended
	Sep. 30, 2013
Schedule of Fair Value and Carrying Value of Assets and Liabilities	'
	The following table summarizes the fair value of KFPC assets and liabilities as of February 27, 2013 recorded upon initial consolidation in our condensed consolidated balance sheet and the carrying amounts of such assets and liabilities as of September 30, 2013, before intercompany eliminations.
		September 30,		February 27,
		2013		2013
		(In thousands)
	Cash and cash equivalents	$	48,900	$	30,348
	Other current assets		455		0
	Property, plant and equipment		10,742		0
	Intangible assets		10,257		0
	Other long-term assets		320		0
	Total assets	$	70,674	$	30,348
	Current liabilities		2,882		0
	Other long-term liabilities		7,138		0
	Total liabilities	$	10,020	$	0

Supplemental_Guarantor_Informa1

Supplemental Guarantor Information (Tables)	9 Months Ended
	Sep. 30, 2013
Consolidating Balance Sheet	'
	KRATON PERFORMANCE POLYMERS, INC.
	CONDENSED CONSOLIDATING BALANCE SHEET
	September 30, 2013
	(Unaudited)
	(In thousands, except par value)
		Kraton			Kraton			Guarantor			Non‑Guarantor			Eliminations			Consolidated
					Polymers			Subsidiaries			Subsidiaries
					LLC (1)
	ASSETS
	Current assets:
	Cash and cash equivalents	$	0		$	0		$	10,454		$	134,176		$	0		$	144,630
	Receivables, net of allowances of $414		0			10			45,923			96,953			0			142,886
	Inventories of products		0			0			179,869			133,906			0			313,775
	Inventories of materials and supplies		0			0			8,485			2,209			0			10,694
	Deferred income taxes		0			0			5,768			3,264			0			9,032
	Other current assets		0			3,186			1,482			14,933			0			19,601
	Total current assets		0			3,196			251,981			385,441			0			640,618
	Property, plant and equipment, less accumulated depreciation of $346,587		0			49,525			231,383			121,701			0			402,609
	Intangible assets, less accumulated amortization of $76,152		0			35,920			22,713			(186	)		0			58,447
	Investment in consolidated subsidiaries		527,880			1,306,496			0			0			(1,834,376	)		0
	Investment in unconsolidated joint venture		0			813			0			12,941			0			13,754
	Debt issuance costs		0			6,319			2,018			1,419			0			9,756
	Deferred income taxes		0			0			0			617			0			617
	Other long-term assets		0			1,619			552,087			117,763			(645,422	)		26,047
	Total assets	$	527,880		$	1,403,888		$	1,060,182		$	639,696		$	(2,479,798	)	$	1,151,848
	LIABILITIES AND STOCKHOLDERS’ AND MEMBER’S EQUITY
	Current liabilities:
	Accounts payable-trade		0			99			35,354			57,740			0			93,193
	Other payables and accruals		0			1,969			21,259			16,459			0			39,687
	Deferred income taxes		0			0			0			412			0			412
	Due to related party		0			0			0			22,813			0			22,813
	Total current liabilities		0			2,068			56,613			97,424			0			156,105
	Long-term debt, net of current portion		0			351,028			0			0			0			351,028
	Deferred income taxes		0			10,642			5,768			4,945			0			21,355
	Other long-term liabilities		0			513,004			91,096			144,373			(645,422	)		103,051
	Total liabilities		0			876,742			153,477			246,742			(645,422	)		631,539
	Commitments and contingencies (note 10)
	Stockholders’ and member’s equity:
	Preferred stock, $0.01 par value; 100,000 shares authorized; none issued		0			0			0			0			0			0
	Common stock, $0.01 par value; 500,000 shares authorized; 32,528 shares issued and outstanding		325			0			0			0			0			325
	Additional paid in capital		361,627			0			0			0			0			361,627
	Member’s equity		0			527,880			959,792			346,704			(1,834,376	)		0
	Retained earnings		165,928			0			0			0			0			165,928
	Accumulated other comprehensive income (loss)		0			(734	)		(53,087	)		15,923			0			(37,898	)
	Kraton stockholders’ and member’s equity		527,880			527,146			906,705			362,627			(1,834,376	)		489,982
	Noncontrolling interest		0			0			0			30,327			0			30,327
	Total stockholders’ and member’s equity		527,880			527,146			906,705			392,954			(1,834,376	)		520,309
	Total liabilities and stockholders’ and member’s equity	$	527,880		$	1,403,888		$	1,060,182		$	639,696		$	(2,479,798	)	$	1,151,848
	(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.
	KRATON PERFORMANCE POLYMERS, INC.
	CONDENSED CONSOLIDATING BALANCE SHEET
	December 31, 2012
	(In thousands, except par value)
		Kraton			Kraton			Guarantor			Non‑Guarantor			Eliminations			Consolidated
					Polymers			Subsidiaries			Subsidiaries
					LLC (1)
	ASSETS
	Current assets:
	Cash and cash equivalents	$	0		$	0		$	80,903		$	142,263		$	0		$	223,166
	Receivables, net of allowances of $401		0			426			44,728			79,481			0			124,635
	Inventories of products		0			0			180,776			159,547			0			340,323
	Inventories of materials and supplies		0			0			8,013			2,318			0			10,331
	Deferred income taxes		0			0			5,768			2,101			0			7,869
Other current assets		0			3,787			691			23,885			0			28,363
Total current assets		0			4,213			320,879			409,595			0			734,687
Property, plant and equipment, less accumulated depreciation of $311,779		0			56,626			222,956			101,623			0			381,205
Intangible assets, less accumulated amortization of $68,531		0			41,056			22,337			0			0			63,393
Investment in consolidated subsidiaries		526,725			1,258,814			0			0			(1,785,539	)		0
Investment in unconsolidated joint venture		0			813			0			12,769			0			13,582
Debt issuance costs		0			10,846			0			0			0			10,846
Deferred income taxes		0			0			0			79			0			79
Other long-term assets		0			1,500			480,756			193,141			(650,000	)		25,397
Total assets	$	526,725		$	1,373,868		$	1,046,928		$	717,207		$	(2,435,539	)	$	1,229,189
LIABILITIES AND STOCKHOLDERS’ AND MEMBER’S EQUITY
Current liabilities:
Current portion of long-term debt	$	0		$	15,074		$	0		$	0		$	0		$	15,074
Accounts payable-trade		0			2,072			44,304			52,791			0			99,167
Other payables and accruals		0			8,995			21,744			20,239			0			50,978
Due to related party		0			0			0			16,080			0			16,080
Deferred income taxes		0			0			0			513			0			513
Total current liabilities		0			26,141			66,048			89,623			0			181,812
Long-term debt, net of current portion		0			432,943			0			0			0			432,943
Deferred income taxes		0			12,206			5,768			4,299			0			22,273
Other long-term liabilities		0			377,032			89,825			283,089			(650,000	)		99,946
Total liabilities		0			848,322			161,641			377,011			(650,000	)		736,974
Commitments and contingencies (note 10)
Stockholders’ and member’s equity:
Preferred stock, $0.01 par value; 100,000 shares authorized; none issued		0			0			0			0			0			0
Common stock, $0.01 par value; 500,000 shares authorized; 32,277 shares issued and outstanding		323			0			0			0			0			323
Additional paid in capital		354,957			0			0			0			0			354,957
Member’s equity		0			526,725			938,374			320,440			(1,785,539	)		0
Retained earnings		171,445			0			0			0			0			171,445
Accumulated other comprehensive income (loss)		0			(1,179	)		(53,087	)		19,756			0			(34,510	)
Total stockholders’ and member’s equity		526,725			525,546			885,287			340,196			(1,785,539	)		492,215
Total liabilities and stockholders’ and member’s equity	$	526,725		$	1,373,868		$	1,046,928		$	717,207		$	(2,435,539	)	$	1,229,189
(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.
Consolidating Statement of Operations	'
	KRATON PERFORMANCE POLYMERS, INC.
	CONDENSED CONSOLIDATING STATEMENT OF OPERATIONS
	Three months ended September 30, 2013
	(Unaudited)
	(In thousands)
		Kraton			Kraton			Guarantor			Non‑Guarantor			Eliminations			Consolidated
					Polymers			Subsidiaries			Subsidiaries
					LLC (1)
	Sales revenue	$	0		$	0		$	156,550		$	210,570		$	(40,011	)	$	327,109
	Cost of goods sold		0			(244	)		134,863			185,051			(40,011	)		279,659
	Gross profit		0			244			21,687			25,519			0			47,450
	Operating expenses:
	Research and development		0			0			4,307			3,106			0			7,413
	Selling, general and administrative		0			6			15,268			7,156			0			22,430
	Depreciation and amortization		0			4,080			7,902			3,832			0			15,814
	Total operating expenses		0			4,086			27,477			14,094			0			45,657
	Earnings (loss) in consolidated subsidiaries		(5,852	)		6,621			0			0			(769	)		0
	Earnings of unconsolidated joint venture		0			0			0			117			0			117
	Interest expense (income), net		0			9,381			(3,766	)		126			0			5,741
	Income (loss) before income taxes		(5,852	)		(6,602	)		(2,024	)		11,416			(769	)		(3,831	)
	Income tax expense (benefit)		0			(750	)		11			2,760			0			2,021
	Consolidated net income (loss)		(5,852	)		(5,852	)		(2,035	)		8,656			(769	)		(5,852	)
	Net loss attributable to noncontrolling interest		0			0			0			(254	)		0			(254	)
	Net income (loss) attributable to Kraton	$	(5,852	)	$	(5,852	)	$	(2,035	)	$	8,910		$	(769	)	$	(5,598	)
	(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.
	KRATON PERFORMANCE POLYMERS, INC.
	CONDENSED CONSOLIDATING STATEMENT OF OPERATIONS
	Three months ended September 30, 2012
	(Unaudited)
	(In thousands)
		Kraton			Kraton			Guarantor			Non‑Guarantor			Eliminations			Consolidated
					Polymers			Subsidiaries			Subsidiaries
					LLC (1)
	Sales revenue	$	0		$	0		$	163,070		$	218,801		$	(39,236	)	$	342,635
	Cost of goods sold		0			(210	)		147,891			191,437			(39,326	)		299,882
	Gross profit		0			210			15,179			27,364			0			42,753
	Operating expenses:
	Research and development		0			0			4,770			2,631			0			7,401
	Selling, general and administrative		0			11			16,151			7,285			0			23,447
	Depreciation and amortization		0			4,079			8,715			3,315			0			16,109
	Impairment of long-lived assets		0			0			5,434			0			0			5,434
	Total operating expenses		0			4,090			35,070			13,231			0			52,391
	Loss in consolidated subsidiaries		(15,499	)		(3,041	)		0			0			18,540			0
	Earnings of unconsolidated joint venture		0			0			0			133			0			133
	Interest expense (income), net		0			9,696			(3,632	)		1,570			0			7,634
	Income (loss) before income taxes		(15,499	)		(16,617	)		(16,259	)		12,696			18,540			(17,139	)
	Income tax expense (benefit)		0			(1,118	)		(661	)		139			0			(1,640	)
	Net income (loss)	$	(15,499	)	$	(15,499	)	$	(15,598	)	$	12,557		$	18,540		$	(15,499	)
	(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.
	KRATON PERFORMANCE POLYMERS, INC.
	CONDENSED CONSOLIDATING STATEMENT OF OPERATIONS
	Nine months ended September 30, 2013
	(Unaudited)
	(In thousands)
		Kraton			Kraton			Guarantor			Non‑Guarantor			Eliminations			Consolidated
					Polymers			Subsidiaries			Subsidiaries
					LLC (1)
	Sales revenue	$	0		$	0		$	498,775		$	624,015		$	(121,031	)	$	1,001,759
	Cost of goods sold		0			1,720			407,224			546,624			(121,031	)		834,537
	Gross profit (loss)		0			(1,720	)		91,551			77,391			0			167,222
	Operating expenses:
	Research and development		0			0			13,087			10,685			0			23,772
	Selling, general and administrative		0			154			50,840			22,554			0			73,548
Depreciation and amortization		0			12,239			23,521			10,893			0			46,653
Total operating expenses		0			12,393			87,448			44,132			0			143,973
Earnings (loss) in consolidated subsidiaries		(5,699	)		41,165			0			0			(35,466	)		0
Earnings of unconsolidated joint venture		0			0			0			372			0			372
Interest expense (income), net		0			34,315			(10,886	)		1,519			0			24,948
Income (loss) before income taxes		(5,699	)		(7,263	)		14,989			32,112			(35,466	)		(1,327	)
Income tax expense (benefit)		0			(1,564	)		32			5,904			0			4,372
Consolidated net income (loss)		(5,699	)		(5,699	)		14,957			26,208			(35,466	)		(5,699	)
Net loss attributable to noncontrolling interest		0			0			0			(182	)		0			(182	)
Net income (loss) attributable to Kraton	$	(5,699	)	$	(5,699	)	$	14,957		$	26,390		$	(35,466	)	$	(5,517	)
(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.
KRATON PERFORMANCE POLYMERS, INC.
CONDENSED CONSOLIDATING STATEMENT OF OPERATIONS
Nine months ended September 30, 2012
(Unaudited)
(In thousands)
	Kraton			Kraton			Guarantor			Non‑Guarantor			Eliminations			Consolidated
				Polymers			Subsidiaries			Subsidiaries
				LLC (1)
Sales revenue	$	0		$	0		$	558,547		$	685,969		$	(117,812	)	$	1,126,704
Cost of goods sold		0			(1,295	)		473,510			580,549			(117,812	)		934,952
Gross profit		0			1,295			85,037			105,420			0			191,752
Operating expenses:
Research and development		0			0			14,483			8,474			0			22,957
Selling, general and administrative		0			11			52,124			24,088			0			76,223
Depreciation and amortization		0			12,238			25,874			9,731			0			47,843
Impairment of long-lived assets		0			0			5,434			0			0			5,434
Total operating expenses		0			12,249			97,915			42,293			0			152,457
Earnings in consolidated subsidiaries		13,261			51,692			0			0			(64,953	)		0
Earnings of unconsolidated joint venture		0			0			0			433			0			433
Interest expense (income), net		0			29,028			(11,145	)		4,223			0			22,106
Income (loss) before income taxes		13,261			11,710			(1,733	)		59,337			(64,953	)		17,622
Income tax expense (benefit)		0			(1,551	)		(1,778	)		7,690			0			4,361
Net income	$	13,261		$	13,261		$	45		$	51,647		$	(64,953	)	$	13,261
(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.
Consolidating Statement of Comprehensive Income (Loss)	'
	KRATON PERFORMANCE POLYMERS, INC.
	CONDENSED CONSOLIDATING STATEMENT OF COMPREHENSIVE INCOME (LOSS)
	Three months ended September 30, 2013
	(Unaudited)
	(In thousands)
		Kraton			Kraton			Guarantor			Non‑Guarantor			Eliminations			Consolidated
					Polymers			Subsidiaries			Subsidiaries
					LLC (1)
	Net income (loss) attributable to Kraton	$	(5,852	)	$	(5,852	)	$	(2,035	)	$	8,910		$	(769	)	$	(5,598	)
	Other comprehensive income (loss):
	Foreign currency translation adjustments, net of tax of $0		0			(201	)		0			9,712			0			9,511
	Unrealized gain (loss) of net investment hedge, net of tax of $0		0			36			0			(301	)		0			(265	)
	Other comprehensive income (loss), net of tax		0			(165	)		0			9,411			0			9,246
	Comprehensive income (loss) attributable to Kraton		(5,852	)		(6,017	)		(2,035	)		18,321			(769	)		3,648
	Comprehensive income attributable to noncontrolling interest		0			0			0			178			0			178
	Consolidated comprehensive income (loss)	$	(5,852	)	$	(6,017	)	$	(2,035	)	$	18,499		$	(769	)	$	3,826
	(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.
	KRATON PERFORMANCE POLYMERS, INC.
	CONDENSED CONSOLIDATING STATEMENT OF COMPREHENSIVE INCOME (LOSS)
	Three months ended September 30, 2012
	(Unaudited)
	(In thousands)
		Kraton			Kraton			Guarantor			Non‑Guarantor			Eliminations			Consolidated
					Polymers			Subsidiaries			Subsidiaries
					LLC (1)
	Net income (loss) attributable to Kraton	$	(15,499	)	$	(15,499	)	$	(15,598	)	$	12,557		$	18,540		$	(15,499	)
	Other comprehensive income (loss):
	Foreign currency translation adjustments, net of tax of $0		0			(122	)		1			7,141			0			7,020
	Unrealized loss on interest rate swaps, net of tax of $0		0			(9	)		0			0			0			(9	)
	Unrealized loss of net investment hedge, net of tax of $0		0			(1,155	)		0			0			0			(1,155	)
	Other comprehensive income (loss), net of tax		0			(1,286	)		1			7,141			0			5,856
	Consolidated comprehensive income (loss)	$	(15,499	)	$	(16,785	)	$	(15,597	)	$	19,698		$	18,540		$	(9,643	)
	(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.
	KRATON PERFORMANCE POLYMERS, INC.
	CONDENSED CONSOLIDATING STATEMENT OF COMPREHENSIVE INCOME (LOSS)
	Nine months ended September 30, 2013
	(Unaudited)
	(In thousands)
		Kraton			Kraton			Guarantor			Non‑Guarantor			Eliminations			Consolidated
					Polymers			Subsidiaries			Subsidiaries
					LLC (1)
	Net income (loss) attributable to Kraton	$	(5,699	)	$	(5,699	)	$	14,957		$	26,390		$	(35,466	)	$	(5,517	)
	Other comprehensive income (loss):
	Foreign currency translation adjustments, net of tax of $0		0			(203	)		0			(3,532	)		0			(3,735	)
	Unrealized gain on interest rate swaps, net of tax of $0		0			837			0			0			0			837
	Unrealized loss of net investment hedge, net of tax of $0		0			(189	)		0			(301	)		0			(490	)
	Other comprehensive income (loss), net of tax		0			445			0			(3,833	)		0			(3,388	)
	Comprehensive income (loss) attributable to Kraton		(5,699	)		(5,254	)		14,957			22,557			(35,466	)		(8,905	)
	Comprehensive income attributable to noncontrolling interest		0			0			0			111			0			111
	Consolidated comprehensive income (loss)	$	(5,699	)	$	(5,254	)	$	14,957		$	22,668		$	(35,466	)	$	(8,794	)
	(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.
	KRATON PERFORMANCE POLYMERS, INC.
	CONDENSED CONSOLIDATING STATEMENT OF COMPREHENSIVE INCOME
	Nine months ended September 30, 2012
	(Unaudited)
	(In thousands)
		Kraton			Kraton			Guarantor			Non‑Guarantor			Eliminations			Consolidated
					Polymers			Subsidiaries			Subsidiaries
					LLC (1)
	Net income attributable to Kraton	$	13,261		$	13,261		$	45		$	51,647		$	(64,953	)	$	13,261
	Other comprehensive income (loss):
	Foreign currency translation adjustments, net of tax of $0		0			(190	)		0			(5,835	)		0			(6,025	)
	Unrealized loss on interest rate swaps, net of tax of $0		0			(143	)		0			0			0			(143	)
Unrealized gain of net investment hedge, net of tax of $0		0			648			0			0			0			648
Other comprehensive income (loss), net of tax		0			315			0			(5,835	)		0			(5,520	)
Consolidated comprehensive income	$	13,261		$	13,576		$	45		$	45,812		$	(64,953	)	$	7,741
(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.
Consolidating Statement of Cash Flows	'
	KRATON PERFORMANCE POLYMERS, INC.
	CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS
	Nine months ended September 30, 2013
	(Unaudited)
	(In thousands)
		Kraton			Kraton			Guarantor			Non‑Guarantor			Eliminations			Consolidated
					Polymers			Subsidiaries			Subsidiaries
					LLC (1)
	Cash flows provided by (used in) operating activities	$	0		$	14,859		$	(65,805	)	$	109,033		$	0		$	58,087
	Cash flows provided by (used in) investing activities:
	Repayments of intercompany loans		0			68,962			0			0			(68,962	)		0
	Purchase of property, plant and equipment		0			0			(26,414	)		(31,508	)		0			(57,922	)
	Purchase of software and other intangibles		0			0			(2,861	)		(245	)		0			(3,106	)
	Settlement of net investment hedge		0			(2,490	)		0			0			0			(2,490	)
	Net cash provided by (used in) investing activities		0			66,472			(29,275	)		(31,753	)		(68,962	)		(63,518	)
	Cash flows provided by (used in) financing activities:
	Proceeds from debt		0			0			40,000			0			0			40,000
	Repayments of debt		0			(96,875	)		(40,000	)		0			0			(136,875	)
	Capital lease payments		0			0			(950	)		0			0			(950	)
	Cash contributions from member		0			15,544			0			(15,544	)		0			0
	Cash distributions to member		(310	)		0			0			310			0			0
	Contribution from noncontrolling interest		0			0			0			30,216			0			30,216
	Proceeds from the exercise of stock options		310			0			0			0			0			310
	Debt issuance costs		0			0			(3,310	)		(1,484	)		0			(4,794	)
	Proceeds from (repayments of) intercompany loans		0			0			28,891			(97,853	)		68,962			0
	Net cash provided by (used in) financing activities		0			(81,331	)		24,631			(84,355	)		68,962			(72,093	)
	Effect of exchange rate differences on cash		0			0			0			(1,012	)		0			(1,012	)
	Net decrease in cash and cash equivalents		0			0			(70,449	)		(8,087	)		0			(78,536	)
	Cash and cash equivalents, beginning of period		0			0			80,903			142,263			0			223,166
	Cash and cash equivalents, end of period	$	0		$	0		$	10,454		$	134,176		$	0		$	144,630
	(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.
	KRATON PERFORMANCE POLYMERS, INC.
	CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS
	Nine months ended September 30, 2012
	(Unaudited)
	(In thousands)
		Kraton			Kraton			Guarantor			Non‑Guarantor			Eliminations			Consolidated
					Polymers			Subsidiaries			Subsidiaries
					LLC (1)
	Cash flows provided by (used in) operating activities	$	0		$	(69,068	)	$	136,814		$	34,442		$	0		$	102,188
	Cash flows provided by (used in) investing activities:
	Repayments of intercompany loans		0			14,132			0			0			(14,132	)		0
	Purchase of property, plant and equipment		0			0			(33,094	)		(9,342	)		0			(42,436	)
	Purchase of software and other intangibles		0			0			(1,842	)		53			0			(1,789	)
	Settlement of net investment hedge		0			1,648			0			0			0			1,648
	Net cash provided by (used in) investing activities		0			15,780			(34,936	)		(9,289	)		(14,132	)		(42,577	)
	Cash flows provided by (used in) financing activities:
	Proceeds from debt		0			101,250			0			0			0			101,250
	Repayments of debt		0			(45,626	)		0			0			0			(45,626	)
	Cash contributions from member		0			820			0			0			(820	)		0
	Cash distributions to member		(820	)		0			0			0			820			0
	Proceeds from the exercise of stock options		820			0			0			0			0			820
	Debt issuance costs		0			(3,156	)		0			0			0			(3,156	)
	Proceeds from (repayments of) intercompany loans		0			0			(33,722	)		19,590			14,132			0
	Net cash provided by (used in) financing activities		0			53,288			(33,722	)		19,590			14,132			53,288
	Effect of exchange rate differences on cash		0			0			0			793			0			793
	Net increase in cash and cash equivalents		0			0			68,156			45,536			0			113,692
	Cash and cash equivalents, beginning of period		0			0			6,030			82,549			0			88,579
	Cash and cash equivalents, end of period	$	0		$	0		$	74,186		$	128,085		$	0		$	202,271
	(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.

Description_of_Business_Basis_

Description of Business, Basis of Presentation, and Significant Accounting Policies - Additional Information (Detail)	1 Months Ended
	Sep. 30, 2013
	Facility
Schedule Of Description Of Business Basis Of Presentation And Significant Accounting Policies [Line Items]	'
Number of manufacturing facilities	5
KFPC	'
Schedule Of Description Of Business Basis Of Presentation And Significant Accounting Policies [Line Items]	'
Percentage of investment in joint venture	50.00%

ShareBased_Compensation_Additi

Share-Based Compensation - Additional Information (Detail) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]	'	'	'	'
Share-based compensation expense	$1.80	$1.50	$6.40	$5.20

Detail_of_Certain_Balance_Shee2

Detail of Certain Balance Sheet Accounts - Inventories of Products and Property, Plant and Equipment (Detail) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Inventories of products:	'	'
Finished products	$229,651	$260,510
Work in progress	2,367	6,759
Raw materials	81,757	73,054
Total inventories of products	313,775	340,323
Other payables and accruals:	'	'
Employee related	12,704	13,423
Income taxes payable	2,343	3,638
Other	24,640	33,917
Total other payables and accruals	39,687	50,978
Other long-term liabilities:	'	'
Pension and other postretirement benefits	84,889	84,005
Other	18,162	15,941
Total other long-term liabilities	103,051	99,946
Accumulated other comprehensive loss:	'	'
Foreign currency translation adjustments	23,221	26,956
Net unrealized loss on interest rate swaps	0	-837
Net unrealized loss on net investment hedge	-1,926	-1,436
Pension liability	-59,193	-59,193
Total accumulated other comprehensive loss	($37,898)	($34,510)

Effects_of_ShareBased_Compensa

Effects of Share-Based Compensation Awards on Diluted Weighted-Average Number of Shares Outstanding used in Calculating Diluted Earnings Per Share (Detail) (USD $)	3 Months Ended		9 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Earnings Per Share [Line Items]	'	'	'	'
Net loss attributable to Kraton	($5,598)	($15,499)	($5,517)	$13,261
Amounts allocated to unvested restricted shares	78	148	68	-117
Net Loss, Basic, Amounts available to common stockholders	-5,520	-15,351	-5,449	13,144
Amounts allocated to unvested restricted shares	-78	-148	-68	117
Amounts reallocated to unvested restricted shares	78	148	68	-116
Net Loss, Diluted, Amounts available to stockholders and assumed conversions	($5,520)	($15,351)	($5,449)	$13,145
Weighted Average Shares Outstanding, Basic, As reported	32,528	32,251	32,471	32,210
Weighted Average Shares Outstanding, amounts allocated to unvested restricted shares	-455	-308	-402	-283
Weighted Average Shares Outstanding, Basic, Amounts available to common stockholders	32,073	31,943	32,069	31,927
Weighted Average Shares Outstanding, amounts allocated to unvested restricted shares	455	308	402	283
Weighted Average Shares Outstanding, Diluted, Non participating Share Units	0	0	0	29
Weighted Average Shares Outstanding, Diluted, Stock options added under the treasury stock method	0	0	0	246
Weighted Average Shares Outstanding, Diluted, amounts reallocated to unvested restricted shares	-455	-308	-402	-283
Amounts available to stockholders and assumed conversions	32,073	31,943	32,069	32,202
Loss per share, basic	($0.17)	($0.48)	($0.17)	$0.41
Loss per share, diluted	($0.17)	($0.48)	($0.17)	$0.41

Earnings_Per_Share_Additional_

Earnings Per Share - Additional Information (Detail)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Stock Options	'	'	'	'
Earnings Per Share Basic [Line Items]	'	'	'	'
Anti-dilutive securities excluded from computation	1,643,950	757,687	1,643,950	737,033
Restricted Share Units	'	'	'	'
Earnings Per Share Basic [Line Items]	'	'	'	'
Anti-dilutive securities excluded from computation	57,591	'	51,106	'
Performance Share Units	'	'	'	'
Earnings Per Share Basic [Line Items]	'	'	'	'
Anti-dilutive securities excluded from computation	67,585	'	51,988	'

LongTerm_Debt_Detail

Long-Term Debt (Detail) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Debt Instrument [Line Items]	'	'
Long-term debt gross	$351,028	$448,017
Less current portion of long-term debt	0	15,074
Long-term debt, less current portion	351,028	432,943
Term loans	'	'
Debt Instrument [Line Items]	'	'
Long-term debt gross	0	96,875
6.75% unsecured notes due 2019	'	'
Debt Instrument [Line Items]	'	'
Long-term debt gross	$351,028	$351,142

LongTerm_Debt_Parenthetical_De

Long-Term Debt (Parenthetical) (Detail)	Sep. 30, 2013
Debt Instrument [Line Items]	'
Debt instrument interest rate	6.75%
6.75% unsecured notes due 2019	'
Debt Instrument [Line Items]	'
Debt instrument interest rate	6.75%

LongTerm_Debt_Additional_Infor

Long-Term Debt - Additional Information (Detail) (USD $)

9 Months Ended

9 Months Ended

12 Months Ended

9 Months Ended

9 Months Ended

9 Months Ended

Sep. 30, 2013

Nov. 01, 2013

Sep. 30, 2013

Sep. 30, 2013

Dec. 31, 2012

Sep. 30, 2012

Mar. 20, 2012

Feb. 11, 2011

Sep. 30, 2013

Mar. 31, 2013

Sep. 30, 2013

Sep. 30, 2013

Nov. 01, 2013

Mar. 31, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Subsequent Event

US commitment and borrowing base

6.75% unsecured notes due 2019

6.75% unsecured notes due 2019

6.75% unsecured notes due 2019

6.75% unsecured notes due 2019

6.75% unsecured notes due 2019

Dutch Senior Secured Revolving Credit Facility

Dutch Senior Secured Revolving Credit Facility

Revolving Credit Facility

U.S. borrowing base

U.S. borrowing base

US Senior Secured Credit Facility

Senior Secured Credit Agreement

Senior Secured Credit Agreement

Senior Secured Credit Agreement

Senior Secured Credit Agreement

Senior Secured Credit Agreement

Senior Secured Credit Agreement

Senior Secured Credit Agreement

Senior Secured Credit Agreement

Senior Secured Credit Agreement

Minimum

Subsequent Event

Minimum

Minimum

Maximum

Maximum

United States Revolving Credit Facility

United States Revolving Credit Facility

Swingline Loans

Swingline Loans

LIBOR Rate Plus

LIBOR Rate Plus

Federal Funds Rate Plus

LIBOR Rate Plus

Federal Funds Rate Plus

LIBOR Rate Plus

Debt Instrument [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Credit facility, borrowing capacity

$31,250,000

'

$18,750,000

'

'

'

'

'

'

$100,000,000

'

'

'

$150,000,000

'

'

'

'

'

'

'

'

'

Additional revolving credit facility commitments

100,000,000

'

'

'

'

'

'

'

40,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Percentage of revolving credit facility commitments

'

'

'

'

'

'

'

'

'

'

60.00%

'

'

'

'

'

'

'

'

'

'

'

'

Percentage added to basis

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0.50%

1.50%

1.00%

2.00%

0.50%

1.00%

0.50%

1.00%

Commitment fee, annual rate

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0.38%

'

'

'

'

'

'

'

'

Financial covenant term

'The Senior Secured Credit Facilities contain a financial covenant that if either (a) excess availability is less than the greater of (i) 12.5% of the lesser of the commitments and the borrowing base and (ii) $31,250,000 or (b) U.S. availability is less than the greater of (i) 12.5% of the lesser of the U.S. commitments and U.S. borrowing base and (ii) $18,750,000, then following such event, Kraton and its restricted subsidiaries must maintain a fixed charge coverage ratio of at least 1.0 to 1.0.

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Percentage of commitment and borrowing base

12.50%

'

12.50%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Fixed charge coverage ratio

1.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Borrowing base

'

'

'

'

'

'

'

'

'

'

'

187,300,000

196,400,000

'

'

'

'

'

'

'

'

'

'

Borrowing base drawn

0

0

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Senior note face amount

'

'

'

$350,000,000

'

'

$100,000,000

$250,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Debt instrument maturity date

'

'

'

1-Mar-19

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Debt instrument frequency of periodic payment

'

'

'

'

'semi-annually

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Debt instrument interest rate

6.75%

'

'

6.75%

6.75%

6.75%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Remaining_Principal_Payments_o

Remaining Principal Payments on Outstanding Total Debt (Detail) (USD $)	Sep. 30, 2013
In Thousands, unless otherwise specified
Debt Disclosure [Abstract]	'
2019	$350,000
Total debt	$350,000

Debt_Issuance_Costs_Additional

Debt Issuance Costs - Additional Information (Detail) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012
Debt Issuance Costs [Line Items]	'	'	'	'	'
Net debt issuance costs	$11.90	'	$11.90	'	$13.90
Debt issuance costs	'	'	4.8	'	'
Amortization of debt issuance costs	0.5	0.7	1.8	2.2	'
Extinguished Indebtedness	'	'	'	'	'
Debt Issuance Costs [Line Items]	'	'	'	'	'
Debt issuance cost charged to interest expense	'	'	5	'	'
Other Current Assets	'	'	'	'	'
Debt Issuance Costs [Line Items]	'	'	'	'	'
Net debt issuance costs	$2.20	'	$2.20	'	$3.10

Summary_of_Financial_Assets_an

Summary of Financial Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail) (Fair Value, Measurements, Recurring, USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Derivatives Fair Value [Line Items]	'	'
Derivative liability, fair value	$1,650	$58
Quoted Prices in Active Markets Identical Assets (Level 1)	'	'
Derivatives Fair Value [Line Items]	'	'
Derivative liability, fair value	1,672	860
Significant Other Observable Inputs (Level 2)	'	'
Derivatives Fair Value [Line Items]	'	'
Derivative liability, fair value	-22	-802
Significant Unobservable Inputs (Level 3)	'	'
Derivatives Fair Value [Line Items]	'	'
Derivative liability, fair value	0	0
Other long-term assets	'	'
Derivatives Fair Value [Line Items]	'	'
Retirement plan asset—noncurrent	1,672	860
Other long-term assets | Quoted Prices in Active Markets Identical Assets (Level 1)	'	'
Derivatives Fair Value [Line Items]	'	'
Retirement plan asset—noncurrent	1,672	860
Other long-term assets | Significant Other Observable Inputs (Level 2)	'	'
Derivatives Fair Value [Line Items]	'	'
Retirement plan asset—noncurrent	0	0
Other long-term assets | Significant Unobservable Inputs (Level 3)	'	'
Derivatives Fair Value [Line Items]	'	'
Retirement plan asset—noncurrent	0	0
Other payables and accruals	'	'
Derivatives Fair Value [Line Items]	'	'
Derivative liability, fair value	-22	-578
Other payables and accruals | Quoted Prices in Active Markets Identical Assets (Level 1)	'	'
Derivatives Fair Value [Line Items]	'	'
Derivative liability, fair value	0	0
Other payables and accruals | Significant Other Observable Inputs (Level 2)	'	'
Derivatives Fair Value [Line Items]	'	'
Derivative liability, fair value	-22	-578
Other payables and accruals | Significant Unobservable Inputs (Level 3)	'	'
Derivatives Fair Value [Line Items]	'	'
Derivative liability, fair value	0	0
Other Current Assets	'	'
Derivatives Fair Value [Line Items]	'	'
Derivative asset, fair value	'	34
Other Current Assets | Quoted Prices in Active Markets Identical Assets (Level 1)	'	'
Derivatives Fair Value [Line Items]	'	'
Derivative asset, fair value	'	0
Other Current Assets | Significant Other Observable Inputs (Level 2)	'	'
Derivatives Fair Value [Line Items]	'	'
Derivative asset, fair value	'	34
Other Current Assets | Significant Unobservable Inputs (Level 3)	'	'
Derivatives Fair Value [Line Items]	'	'
Derivative asset, fair value	'	0
Other long-term liabilities	'	'
Derivatives Fair Value [Line Items]	'	'
Derivative liability, fair value	'	-258
Other long-term liabilities | Quoted Prices in Active Markets Identical Assets (Level 1)	'	'
Derivatives Fair Value [Line Items]	'	'
Derivative liability, fair value	'	0
Other long-term liabilities | Significant Other Observable Inputs (Level 2)	'	'
Derivatives Fair Value [Line Items]	'	'
Derivative liability, fair value	'	-258
Other long-term liabilities | Significant Unobservable Inputs (Level 3)	'	'
Derivatives Fair Value [Line Items]	'	'
Derivative liability, fair value	'	$0

Carrying_Values_and_Approximat

Carrying Values and Approximate Fair Values of Long-Term Debt (Detail) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Term loans | Carrying Value	'	'
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]	'	'
Long-term debt	$0	$96,875
Term loans | Fair Value	'	'
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]	'	'
Long-term debt	0	96,875
6.75% unsecured notes due 2019 | Carrying Value	'	'
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]	'	'
Long-term debt	351,028	351,142
6.75% unsecured notes due 2019 | Fair Value	'	'
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]	'	'
Long-term debt	$358,810	$364,000

Fair_Value_Measurements_Financ2

Fair Value Measurements, Financial Instruments, and Credit Risk - Additional Information (Detail)

3 Months Ended

9 Months Ended

1 Months Ended

3 Months Ended

3 Months Ended

3 Months Ended

9 Months Ended

Sep. 30, 2013

Sep. 30, 2012

Sep. 30, 2013

Sep. 30, 2012

Dec. 31, 2012

Jun. 30, 2011

Mar. 31, 2013

Mar. 31, 2012

Sep. 30, 2013

Jun. 30, 2013

Sep. 30, 2013

Dec. 31, 2012

Dec. 31, 2012

Sep. 30, 2013

Sep. 30, 2012

Sep. 30, 2013

Sep. 30, 2012

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

Interest Rate Swap Agreement

Interest Rate Swap Agreement

Interest Rate Swap Agreement

Fair Value Hedges

Net Investment Hedges

Net Investment Hedges

Net Investment Hedges

Net Investment Hedges

Foreign Currency Hedges

Foreign Currency Hedges

Foreign Currency Hedges

Foreign Currency Hedges

USD ($)

USD ($)

USD ($)

Settlement date of October 8, 2013

EUR (€)

Minimum

Minimum

Maximum

USD ($)

USD ($)

USD ($)

USD ($)

CAD

EUR (€)

EUR (€)

Derivative [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Interest rate swap agreement, notional amount

'

'

'

'

'

$75,000,000

'

'

1,600,000

€ 11,600,000

'

€ 50,000,000

€ 100,000,000

'

'

'

'

Agreement effective date

'

'

'

'

'

15-Jul-11

'

'

'

'

'

'

'

'

'

'

'

Agreement maturity date

'

'

'

'

'

15-Jul-14

'

'

'

'

'

'

'

'

'

'

'

Interest expense recognized

'

'

'

'

'

'

700,000

'

'

'

'

'

'

'

'

'

'

Net unrealized loss on interest rate swaps

0

'

0

'

-837,000

'

'

100,000

'

'

'

'

'

'

'

'

'

Gain on effective portion forward contracts qualified for hedge

100,000

100,000

'

100,000

'

'

'

'

'

'

'

'

'

'

'

'

'

Loss on effective portion forward contracts qualified for hedge

100,000

100,000

'

100,000

'

'

'

'

'

'

'

'

'

'

'

'

'

Unrealized gain (loss) of net investment hedge, net of tax of $0

-265,000

-1,155,000

-490,000

648,000

'

'

'

'

'

'

'

'

'

'

'

'

'

Forward contracts, expiration period

'

'

'

'

'

'

'

'

'

'

'30 days

'

'

'

'

'

'

Aggregate gain (loss) on settlement of hedges

'

'

'

'

'

'

'

'

'

'

'

'

'

$300,000

$100,000

($1,500,000)

$1,200,000

Income_Taxes_Additional_Inform

Income Taxes - Additional Information (Detail) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012
Income Tax Disclosure [Abstract]	'	'	'	'	'
Income tax expense (benefit)	$2,021,000	($1,640,000)	$4,372,000	$4,361,000	'
Effective tax rates	52.80%	9.60%	329.50%	24.70%	'
Statutory tax rate	'	'	35.00%	35.00%	'
Valuation allowance for deferred tax assets	98,300,000	'	98,300,000	'	90,400,000
Increase (Decrease) in valuation allowance	3,600,000	9,800,000	7,900,000	9,600,000	'
Increase in valuation allowance to account for changes in other comprehensive income (loss)	100,000	'	100,000	'	'
Effective income tax rate, excluding change release of valuation allowance	38.30%	66.40%	276.90%	29.10%	'
Unrecognized tax benefits	6,900,000	'	6,900,000	'	5,100,000
Increase in uncertain tax positions primarily related to uncertain tax positions in Europe	700,000	400,000	1,800,000	1,500,000	'
Valuation Allowance, Operating Loss Carryforwards	'	'	'	'	'
Income Tax Disclosure [Abstract]	'	'	'	'	'
Increase (Decrease) in valuation allowance	$3,500,000	'	$8,000,000	'	'

Changes_in_Aggregate_Carrying_

Changes in Aggregate Carrying Amount of Asset Retirement Obligation Liability (Detail) (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013
Commitments And Contingencies Disclosure [Abstract]	'
Beginning balance	$9,837
Accretion expense	377
Foreign currency translation	93
Ending balance	$10,307

Commitments_and_Contingencies_1

Commitments and Contingencies - Additional Information (Detail) (BRL)	9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2013
Commitments And Contingencies Disclosure [Abstract]	'
Tax credits generated from purchase of certain goods	5.9

Components_of_Net_Periodic_Ben

Components of Net Periodic Benefit Cost Related to U.S Pension Benefits (Detail) (U.S. Retirement Benefit Plan, USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
U.S. Retirement Benefit Plan	'	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'	'
Service cost	$828	$795	$2,528	$2,385
Interest cost	1,384	1,394	4,179	4,185
Expected return on plan assets	-1,654	-1,464	-4,959	-4,455
Amortization of prior service cost	880	683	2,745	2,048
Net periodic benefit cost	$1,438	$1,408	$4,493	$4,163

Components_of_Net_Periodic_Cos

Components of Net Periodic Cost Related to Other Post- retirement Benefits (Detail) (Post-Retirement Benefits Other Than Pensions, USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Post-Retirement Benefits Other Than Pensions	'	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'	'
Service cost	$130	$127	$420	$383
Interest cost	285	305	870	915
Amortization of prior service cost	161	150	525	450
Net periodic benefit cost	$576	$582	$1,815	$1,748

Employee_Benefits_Additional_I

Employee Benefits - Additional Information (Detail) (U.S. Retirement Benefit Plan, USD $)	9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012
U.S. Retirement Benefit Plan	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'
Employer Contributions	$4.80	$6.80

Sales_Revenue_for_Four_Primary

Sales Revenue for Four Primary Product Lines (Detail) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Segment Reporting Information [Line Items]	'	'	'	'
Sales revenue for primary product lines	$327,109	$342,635	$1,001,759	$1,126,704
USBCs	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'
Sales revenue for primary product lines	192,714	208,119	582,030	670,219
HSBCs	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'
Sales revenue for primary product lines	98,572	103,400	311,603	353,921
Cariflex	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'
Sales revenue for primary product lines	28,231	24,193	84,504	76,643
Compounds	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'
Sales revenue for primary product lines	7,187	6,685	22,635	23,799
Other	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'
Sales revenue for primary product lines	$405	$238	$987	$2,122

Sales_Revenue_by_Geographic_Re

Sales Revenue by Geographic Region (Detail) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Segment Reporting Revenue Reconciling Item [Line Items]	'	'	'	'
Sales revenue	$327,109	$342,635	$1,001,759	$1,126,704
Operating Segment	'	'	'	'
Segment Reporting Revenue Reconciling Item [Line Items]	'	'	'	'
Sales revenue	327,109	342,635	1,001,759	1,126,704
Operating Segment | United States	'	'	'	'
Segment Reporting Revenue Reconciling Item [Line Items]	'	'	'	'
Sales revenue	99,726	103,114	313,963	375,453
Operating Segment | Germany	'	'	'	'
Segment Reporting Revenue Reconciling Item [Line Items]	'	'	'	'
Sales revenue	49,263	52,078	134,948	152,277
Operating Segment | Japan	'	'	'	'
Segment Reporting Revenue Reconciling Item [Line Items]	'	'	'	'
Sales revenue	20,341	23,561	57,472	64,757
Operating Segment | China	'	'	'	'
Segment Reporting Revenue Reconciling Item [Line Items]	'	'	'	'
Sales revenue	17,872	19,324	54,065	59,241
Operating Segment | Brazil	'	'	'	'
Segment Reporting Revenue Reconciling Item [Line Items]	'	'	'	'
Sales revenue	14,701	11,807	41,582	37,627
Operating Segment | France	'	'	'	'
Segment Reporting Revenue Reconciling Item [Line Items]	'	'	'	'
Sales revenue	12,534	12,361	35,729	39,188
Operating Segment | Belgium	'	'	'	'
Segment Reporting Revenue Reconciling Item [Line Items]	'	'	'	'
Sales revenue	9,751	10,745	32,865	36,340
Operating Segment | Italy	'	'	'	'
Segment Reporting Revenue Reconciling Item [Line Items]	'	'	'	'
Sales revenue	9,424	10,445	32,822	34,945
Operating Segment | Thailand	'	'	'	'
Segment Reporting Revenue Reconciling Item [Line Items]	'	'	'	'
Sales revenue	10,457	10,750	30,621	32,382
Operating Segment | United Kingdom	'	'	'	'
Segment Reporting Revenue Reconciling Item [Line Items]	'	'	'	'
Sales revenue	8,011	7,411	28,770	30,499
Operating Segment | Netherlands	'	'	'	'
Segment Reporting Revenue Reconciling Item [Line Items]	'	'	'	'
Sales revenue	6,118	6,076	22,332	26,867
Operating Segment | Malaysia	'	'	'	'
Segment Reporting Revenue Reconciling Item [Line Items]	'	'	'	'
Sales revenue	6,664	2,673	19,802	12,789
Operating Segment | Turkey	'	'	'	'
Segment Reporting Revenue Reconciling Item [Line Items]	'	'	'	'
Sales revenue	7,743	5,293	19,333	24,071
Operating Segment | Mexico	'	'	'	'
Segment Reporting Revenue Reconciling Item [Line Items]	'	'	'	'
Sales revenue	4,460	3,443	14,143	9,891
Operating Segment | Sweden	'	'	'	'
Segment Reporting Revenue Reconciling Item [Line Items]	'	'	'	'
Sales revenue	4,333	5,361	13,905	14,067
Operating Segment | Taiwan	'	'	'	'
Segment Reporting Revenue Reconciling Item [Line Items]	'	'	'	'
Sales revenue	3,649	4,744	13,588	14,784
Operating Segment | Canada	'	'	'	'
Segment Reporting Revenue Reconciling Item [Line Items]	'	'	'	'
Sales revenue	3,585	4,170	13,264	14,769
Operating Segment | Argentina	'	'	'	'
Segment Reporting Revenue Reconciling Item [Line Items]	'	'	'	'
Sales revenue	3,798	3,371	12,709	11,144
Operating Segment | Austria	'	'	'	'
Segment Reporting Revenue Reconciling Item [Line Items]	'	'	'	'
Sales revenue	3,699	4,467	9,769	14,622
Operating Segment | South Korea	'	'	'	'
Segment Reporting Revenue Reconciling Item [Line Items]	'	'	'	'
Sales revenue	2,532	4,068	9,691	12,457
Operating Segment | Poland	'	'	'	'
Segment Reporting Revenue Reconciling Item [Line Items]	'	'	'	'
Sales revenue	5,589	6,758	9,400	16,879
Operating Segment | Australia	'	'	'	'
Segment Reporting Revenue Reconciling Item [Line Items]	'	'	'	'
Sales revenue	507	4,348	7,492	13,128
Operating Segment | All other countries	'	'	'	'
Segment Reporting Revenue Reconciling Item [Line Items]	'	'	'	'
Sales revenue	$22,352	$26,267	$73,494	$78,527

LongLived_Assets_by_Geographic

Long-Lived Assets by Geographic Region (Detail) (Operating Segment, USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Certain Long Lived Assets By Geography [Line Items]	'	'
Long-lived assets, at cost	$749,196	$692,984
United States	'	'
Certain Long Lived Assets By Geography [Line Items]	'	'
Long-lived assets, at cost	438,137	411,969
France	'	'
Certain Long Lived Assets By Geography [Line Items]	'	'
Long-lived assets, at cost	122,061	118,275
Brazil	'	'
Certain Long Lived Assets By Geography [Line Items]	'	'
Long-lived assets, at cost	77,612	79,585
Germany	'	'
Certain Long Lived Assets By Geography [Line Items]	'	'
Long-lived assets, at cost	61,475	55,581
Netherlands	'	'
Certain Long Lived Assets By Geography [Line Items]	'	'
Long-lived assets, at cost	25,874	15,255
Taiwan	'	'
Certain Long Lived Assets By Geography [Line Items]	'	'
Long-lived assets, at cost	10,755	0
China	'	'
Certain Long Lived Assets By Geography [Line Items]	'	'
Long-lived assets, at cost	6,997	5,906
Japan	'	'
Certain Long Lived Assets By Geography [Line Items]	'	'
Long-lived assets, at cost	1,808	1,978
All other countries	'	'
Certain Long Lived Assets By Geography [Line Items]	'	'
Long-lived assets, at cost	$4,477	$4,435

Aggregate_Amounts_of_RelatedPa

Aggregate Amounts of Related-Party Transactions (Detail) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Related Party Transactions [Abstract]	'	'	'	'
Purchases from related party	$15,215	$8,518	$37,940	$39,188

Related_Party_Transactions_Add

Related Party Transactions - Additional Information (Detail)	9 Months Ended
	Sep. 30, 2013
Related Party Transaction [Line Items]	'
Maximum number of terms allowed for required related party payment	'150 days
KJE	'
Related Party Transaction [Line Items]	'
Percentage of equity investment	50.00%

Variable_Interest_Entity_Addit

Variable Interest Entity - Additional Information (Detail) (Formosa Petrochemical Corporation, USD $)	1 Months Ended
In Millions, unless otherwise specified	Aug. 31, 2013	Feb. 28, 2013
Formosa Petrochemical Corporation	'	'
Minority Interest [Line Items]	'	'
Definitive agreements	'	'In February 2013, we executed definitive agreements providing for a 50/50 joint venture with Formosa Petrochemical Corporation (“FPCC”) to build, own and operate a 30 kiloton HSBC plant at FPCC’s petrochemical site in Mailiao, Taiwan
Capital contribution to joint venture	'	50.00%
Investments in joint venture	$15	$15.20

Schedule_of_Fair_Value_and_Car

Schedule of Fair Value and Carrying Value of Assets and Liabilities (Detail) (USD $)	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2012	Dec. 31, 2011	Sep. 30, 2013	Feb. 27, 2013
In Thousands, unless otherwise specified					KFPC	KFPC
Cash and cash equivalents	$144,630	$223,166	$202,271	$88,579	$48,900	$30,348
Other current assets	19,601	28,363	'	'	455	0
Property, plant and equipment	402,609	381,205	'	'	10,742	0
Intangible assets	58,447	63,393	'	'	10,257	0
Other long-term assets	26,047	25,397	'	'	320	0
Total assets	1,151,848	1,229,189	'	'	70,674	30,348
Current liabilities	156,105	181,812	'	'	2,882	0
Other long-term liabilities	103,051	99,946	'	'	7,138	0
Total liabilities	$631,539	$736,974	'	'	$10,020	$0

Consolidating_Balance_Sheet_De

Consolidating Balance Sheet (Detail) (USD $)	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2012	Dec. 31, 2011
In Thousands, unless otherwise specified
Current assets:	'	'	'	'
Cash and cash equivalents	$144,630	$223,166	$202,271	$88,579
Receivables, net of allowances	142,886	124,635	'	'
Inventories of products	313,775	340,323	'	'
Inventories of materials and supplies	10,694	10,331	'	'
Deferred income taxes	9,032	7,869	'	'
Other current assets	19,601	28,363	'	'
Total current assets	640,618	734,687	'	'
Property, plant and equipment, less accumulated depreciation	402,609	381,205	'	'
Intangible assets, less accumulated amortization	58,447	63,393	'	'
Investment in consolidated subsidiaries	0	0	'	'
Investment in unconsolidated joint venture	13,754	13,582	'	'
Debt issuance costs	9,756	10,846	'	'
Deferred income taxes	617	79	'	'
Other long-term assets	26,047	25,397	'	'
Total assets	1,151,848	1,229,189	'	'
Current liabilities:	'	'	'	'
Current portion of long-term debt	0	15,074	'	'
Accounts payable-trade	93,193	99,167	'	'
Other payables and accruals	39,687	50,978	'	'
Deferred income taxes	412	513	'	'
Due to related party	22,813	16,080	'	'
Total current liabilities	156,105	181,812	'	'
Long-term debt, net of current portion	351,028	432,943	'	'
Deferred income taxes	21,355	22,273	'	'
Other long-term liabilities	103,051	99,946	'	'
Total liabilities	631,539	736,974	'	'
Commitments and contingencies (note 10)	'	'	'	'
Stockholders’ and member’s equity:	'	'	'	'
Preferred stock, $0.01 par value; 100,000 shares authorized; none issued	0	0	'	'
Common stock, $0.01 par value; 500,000 shares authorized; 32,528 shares issued and outstanding at September 30, 2013; 32,277 shares issued and outstanding at December 31, 2012	325	323	'	'
Additional paid in capital	361,627	354,957	'	'
Member’s equity	0	0	'	'
Retained earnings	165,928	171,445	'	'
Accumulated other comprehensive income (loss)	-37,898	-34,510	'	'
Kraton stockholders’ and member’s equity	489,982	492,215	'	'
Noncontrolling interest	30,327	0	'	'
Total stockholders’ and member’s equity	520,309	492,215	531,600	517,794
Total liabilities and stockholders’ and member’s equity	1,151,848	1,229,189	'	'
Kraton	'	'	'	'
Current assets:	'	'	'	'
Cash and cash equivalents	0	0	0	0
Receivables, net of allowances	0	0	'	'
Inventories of products	0	0	'	'
Inventories of materials and supplies	0	0	'	'
Deferred income taxes	0	0	'	'
Other current assets	0	0	'	'
Total current assets	0	0	'	'
Property, plant and equipment, less accumulated depreciation	0	0	'	'
Intangible assets, less accumulated amortization	0	0	'	'
Investment in consolidated subsidiaries	527,880	526,725	'	'
Investment in unconsolidated joint venture	0	0	'	'
Debt issuance costs	0	0	'	'
Deferred income taxes	0	0	'	'
Other long-term assets	0	0	'	'
Total assets	527,880	526,725	'	'
Current liabilities:	'	'	'	'
Current portion of long-term debt	'	0	'	'
Accounts payable-trade	0	0	'	'
Other payables and accruals	0	0	'	'
Deferred income taxes	0	0	'	'
Due to related party	0	0	'	'
Total current liabilities	0	0	'	'
Long-term debt, net of current portion	0	0	'	'
Deferred income taxes	0	0	'	'
Other long-term liabilities	0	0	'	'
Total liabilities	0	0	'	'
Commitments and contingencies (note 10)	'	'	'	'
Stockholders’ and member’s equity:	'	'	'	'
Preferred stock, $0.01 par value; 100,000 shares authorized; none issued	0	0	'	'
Common stock, $0.01 par value; 500,000 shares authorized; 32,528 shares issued and outstanding at September 30, 2013; 32,277 shares issued and outstanding at December 31, 2012	325	323	'	'
Additional paid in capital	361,627	354,957	'	'
Member’s equity	0	0	'	'
Retained earnings	165,928	171,445	'	'
Accumulated other comprehensive income (loss)	0	0	'	'
Kraton stockholders’ and member’s equity	527,880	'	'	'
Noncontrolling interest	0	'	'	'
Total stockholders’ and member’s equity	527,880	526,725	'	'
Total liabilities and stockholders’ and member’s equity	527,880	526,725	'	'
Kraton Polymers LLC	'	'	'	'
Current assets:	'	'	'	'
Cash and cash equivalents	0	0	0	0
Receivables, net of allowances	10	426	'	'
Inventories of products	0	0	'	'
Inventories of materials and supplies	0	0	'	'
Deferred income taxes	0	0	'	'
Other current assets	3,186	3,787	'	'
Total current assets	3,196	4,213	'	'
Property, plant and equipment, less accumulated depreciation	49,525	56,626	'	'
Intangible assets, less accumulated amortization	35,920	41,056	'	'
Investment in consolidated subsidiaries	1,306,496	1,258,814	'	'
Investment in unconsolidated joint venture	813	813	'	'
Debt issuance costs	6,319	10,846	'	'
Deferred income taxes	0	0	'	'
Other long-term assets	1,619	1,500	'	'
Total assets	1,403,888	1,373,868	'	'
Current liabilities:	'	'	'	'
Current portion of long-term debt	'	15,074	'	'
Accounts payable-trade	99	2,072	'	'
Other payables and accruals	1,969	8,995	'	'
Deferred income taxes	0	0	'	'
Due to related party	0	0	'	'
Total current liabilities	2,068	26,141	'	'
Long-term debt, net of current portion	351,028	432,943	'	'
Deferred income taxes	10,642	12,206	'	'
Other long-term liabilities	513,004	377,032	'	'
Total liabilities	876,742	848,322	'	'
Commitments and contingencies (note 10)	'	'	'	'
Stockholders’ and member’s equity:	'	'	'	'
Preferred stock, $0.01 par value; 100,000 shares authorized; none issued	0	0	'	'
Common stock, $0.01 par value; 500,000 shares authorized; 32,528 shares issued and outstanding at September 30, 2013; 32,277 shares issued and outstanding at December 31, 2012	0	0	'	'
Additional paid in capital	0	0	'	'
Member’s equity	527,880	526,725	'	'
Retained earnings	0	0	'	'
Accumulated other comprehensive income (loss)	-734	-1,179	'	'
Kraton stockholders’ and member’s equity	527,146	'	'	'
Noncontrolling interest	0	'	'	'
Total stockholders’ and member’s equity	527,146	525,546	'	'
Total liabilities and stockholders’ and member’s equity	1,403,888	1,373,868	'	'
Guarantor Subsidiaries	'	'	'	'
Current assets:	'	'	'	'
Cash and cash equivalents	10,454	80,903	74,186	6,030
Receivables, net of allowances	45,923	44,728	'	'
Inventories of products	179,869	180,776	'	'
Inventories of materials and supplies	8,485	8,013	'	'
Deferred income taxes	5,768	5,768	'	'
Other current assets	1,482	691	'	'
Total current assets	251,981	320,879	'	'
Property, plant and equipment, less accumulated depreciation	231,383	222,956	'	'
Intangible assets, less accumulated amortization	22,713	22,337	'	'
Investment in consolidated subsidiaries	0	0	'	'
Investment in unconsolidated joint venture	0	0	'	'
Debt issuance costs	2,018	0	'	'
Deferred income taxes	0	0	'	'
Other long-term assets	552,087	480,756	'	'
Total assets	1,060,182	1,046,928	'	'
Current liabilities:	'	'	'	'
Current portion of long-term debt	'	0	'	'
Accounts payable-trade	35,354	44,304	'	'
Other payables and accruals	21,259	21,744	'	'
Deferred income taxes	0	0	'	'
Due to related party	0	0	'	'
Total current liabilities	56,613	66,048	'	'
Long-term debt, net of current portion	0	0	'	'
Deferred income taxes	5,768	5,768	'	'
Other long-term liabilities	91,096	89,825	'	'
Total liabilities	153,477	161,641	'	'
Commitments and contingencies (note 10)	'	'	'	'
Stockholders’ and member’s equity:	'	'	'	'
Preferred stock, $0.01 par value; 100,000 shares authorized; none issued	0	0	'	'
Common stock, $0.01 par value; 500,000 shares authorized; 32,528 shares issued and outstanding at September 30, 2013; 32,277 shares issued and outstanding at December 31, 2012	0	0	'	'
Additional paid in capital	0	0	'	'
Member’s equity	959,792	938,374	'	'
Retained earnings	0	0	'	'
Accumulated other comprehensive income (loss)	-53,087	-53,087	'	'
Kraton stockholders’ and member’s equity	906,705	'	'	'
Noncontrolling interest	0	'	'	'
Total stockholders’ and member’s equity	906,705	885,287	'	'
Total liabilities and stockholders’ and member’s equity	1,060,182	1,046,928	'	'
Non-Guarantor Subsidiaries	'	'	'	'
Current assets:	'	'	'	'
Cash and cash equivalents	134,176	142,263	128,085	82,549
Receivables, net of allowances	96,953	79,481	'	'
Inventories of products	133,906	159,547	'	'
Inventories of materials and supplies	2,209	2,318	'	'
Deferred income taxes	3,264	2,101	'	'
Other current assets	14,933	23,885	'	'
Total current assets	385,441	409,595	'	'
Property, plant and equipment, less accumulated depreciation	121,701	101,623	'	'
Intangible assets, less accumulated amortization	-186	0	'	'
Investment in consolidated subsidiaries	0	0	'	'
Investment in unconsolidated joint venture	12,941	12,769	'	'
Debt issuance costs	1,419	0	'	'
Deferred income taxes	617	79	'	'
Other long-term assets	117,763	193,141	'	'
Total assets	639,696	717,207	'	'
Current liabilities:	'	'	'	'
Current portion of long-term debt	'	0	'	'
Accounts payable-trade	57,740	52,791	'	'
Other payables and accruals	16,459	20,239	'	'
Deferred income taxes	412	513	'	'
Due to related party	22,813	16,080	'	'
Total current liabilities	97,424	89,623	'	'
Long-term debt, net of current portion	0	0	'	'
Deferred income taxes	4,945	4,299	'	'
Other long-term liabilities	144,373	283,089	'	'
Total liabilities	246,742	377,011	'	'
Commitments and contingencies (note 10)	'	'	'	'
Stockholders’ and member’s equity:	'	'	'	'
Preferred stock, $0.01 par value; 100,000 shares authorized; none issued	0	0	'	'
Common stock, $0.01 par value; 500,000 shares authorized; 32,528 shares issued and outstanding at September 30, 2013; 32,277 shares issued and outstanding at December 31, 2012	0	0	'	'
Additional paid in capital	0	0	'	'
Member’s equity	346,704	320,440	'	'
Retained earnings	0	0	'	'
Accumulated other comprehensive income (loss)	15,923	19,756	'	'
Kraton stockholders’ and member’s equity	362,627	'	'	'
Noncontrolling interest	30,327	'	'	'
Total stockholders’ and member’s equity	392,954	340,196	'	'
Total liabilities and stockholders’ and member’s equity	639,696	717,207	'	'
Eliminations	'	'	'	'
Current assets:	'	'	'	'
Cash and cash equivalents	0	0	0	0
Receivables, net of allowances	0	0	'	'
Inventories of products	0	0	'	'
Inventories of materials and supplies	0	0	'	'
Deferred income taxes	0	0	'	'
Other current assets	0	0	'	'
Total current assets	0	0	'	'
Property, plant and equipment, less accumulated depreciation	0	0	'	'
Intangible assets, less accumulated amortization	0	0	'	'
Investment in consolidated subsidiaries	-1,834,376	-1,785,539	'	'
Investment in unconsolidated joint venture	0	0	'	'
Debt issuance costs	0	0	'	'
Deferred income taxes	0	0	'	'
Other long-term assets	-645,422	-650,000	'	'
Total assets	-2,479,798	-2,435,539	'	'
Current liabilities:	'	'	'	'
Current portion of long-term debt	'	0	'	'
Accounts payable-trade	0	0	'	'
Other payables and accruals	0	0	'	'
Deferred income taxes	0	0	'	'
Due to related party	0	0	'	'
Total current liabilities	0	0	'	'
Long-term debt, net of current portion	0	0	'	'
Deferred income taxes	0	0	'	'
Other long-term liabilities	-645,422	-650,000	'	'
Total liabilities	-645,422	-650,000	'	'
Commitments and contingencies (note 10)	'	'	'	'
Stockholders’ and member’s equity:	'	'	'	'
Preferred stock, $0.01 par value; 100,000 shares authorized; none issued	0	0	'	'
Common stock, $0.01 par value; 500,000 shares authorized; 32,528 shares issued and outstanding at September 30, 2013; 32,277 shares issued and outstanding at December 31, 2012	0	0	'	'
Additional paid in capital	0	0	'	'
Member’s equity	-1,834,376	-1,785,539	'	'
Retained earnings	0	0	'	'
Accumulated other comprehensive income (loss)	0	0	'	'
Kraton stockholders’ and member’s equity	-1,834,376	'	'	'
Noncontrolling interest	0	'	'	'
Total stockholders’ and member’s equity	-1,834,376	-1,785,539	'	'
Total liabilities and stockholders’ and member’s equity	($2,479,798)	($2,435,539)	'	'

Consolidating_Balance_Sheet_Pa

Consolidating Balance Sheet (Parenthetical) (Detail) (USD $)	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2012
In Thousands, except Per Share data, unless otherwise specified
Supplemental Guarantor Information [Line Items]	'	'	'
Receivables, allowances	414	401	'
Property, plant and equipment, accumulated depreciation	346,587	311,779	'
Intangible assets, accumulated amortization	76,152	68,531	'
Preferred stock, par value	0.01	0.01	'
Preferred stock, shares authorized	100,000	100,000	'
Preferred stock, shares issued	'	'	'
Common stock, par value	0.01	0.01	'
Common stock, shares authorized	500,000	500,000	'
Common stock, shares issued	32,528	32,277	'
Common stock, shares outstanding	32,528	32,277	'
Debt instrument interest rate	6.75%	'	'
6.75% unsecured notes due 2019	'	'	'
Supplemental Guarantor Information [Line Items]	'	'	'
Debt instrument interest rate	6.75%	6.75%	6.75%
Debt instrument maturity date	'2019-03-01	'2019-03-01	'2019-03-01
Kraton	'	'	'
Supplemental Guarantor Information [Line Items]	'	'	'
Preferred stock, shares issued	'	'	'
Kraton Polymers LLC	'	'	'
Supplemental Guarantor Information [Line Items]	'	'	'
Preferred stock, shares issued	'	'	'
Guarantor Subsidiaries	'	'	'
Supplemental Guarantor Information [Line Items]	'	'	'
Preferred stock, shares issued	'	'	'
Non-Guarantor Subsidiaries	'	'	'
Supplemental Guarantor Information [Line Items]	'	'	'
Preferred stock, shares issued	'	'	'
Eliminations	'	'	'
Supplemental Guarantor Information [Line Items]	'	'	'
Preferred stock, shares issued	'	'	'

Consolidating_Statement_of_Ope

Consolidating Statement of Operations (Detail) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Supplemental Guarantor Information [Line Items]	'	'	'	'
Sales revenue	$327,109	$342,635	$1,001,759	$1,126,704
Cost of goods sold	279,659	299,882	834,537	934,952
Gross profit (loss)	47,450	42,753	167,222	191,752
Operating expenses:	'	'	'	'
Research and development	7,413	7,401	23,772	22,957
Selling, general and administrative	22,430	23,447	73,548	76,223
Depreciation and amortization	15,814	16,109	46,653	47,843
Impairment of long-lived assets	0	5,434	0	5,434
Total operating expenses	45,657	52,391	143,973	152,457
Earnings (loss) in consolidated subsidiaries	0	0	0	0
Earnings of unconsolidated joint venture	117	133	372	433
Interest expense (income), net	5,741	7,634	24,948	22,106
Income (loss) before income taxes	-3,831	-17,139	-1,327	17,622
Income tax expense (benefit)	2,021	-1,640	4,372	4,361
Consolidated net income (loss)	-5,852	-15,499	-5,699	13,261
Net loss attributable to noncontrolling interest	-254	0	-182	0
Net income (loss) attributable to Kraton	-5,598	-15,499	-5,517	13,261
Kraton	'	'	'	'
Supplemental Guarantor Information [Line Items]	'	'	'	'
Sales revenue	0	0	0	0
Cost of goods sold	0	0	0	0
Gross profit (loss)	0	0	0	0
Operating expenses:	'	'	'	'
Research and development	0	0	0	0
Selling, general and administrative	0	0	0	0
Depreciation and amortization	0	0	0	0
Impairment of long-lived assets	'	0	'	0
Total operating expenses	0	0	0	0
Earnings (loss) in consolidated subsidiaries	-5,852	-15,499	-5,699	13,261
Earnings of unconsolidated joint venture	0	0	0	0
Interest expense (income), net	0	0	0	0
Income (loss) before income taxes	-5,852	-15,499	-5,699	13,261
Income tax expense (benefit)	0	0	0	0
Consolidated net income (loss)	-5,852	'	-5,699	'
Net loss attributable to noncontrolling interest	0	'	0	'
Net income (loss) attributable to Kraton	-5,852	-15,499	-5,699	13,261
Kraton Polymers LLC	'	'	'	'
Supplemental Guarantor Information [Line Items]	'	'	'	'
Sales revenue	0	0	0	0
Cost of goods sold	-244	-210	1,720	-1,295
Gross profit (loss)	244	210	-1,720	1,295
Operating expenses:	'	'	'	'
Research and development	0	0	0	0
Selling, general and administrative	6	11	154	11
Depreciation and amortization	4,080	4,079	12,239	12,238
Impairment of long-lived assets	'	0	'	0
Total operating expenses	4,086	4,090	12,393	12,249
Earnings (loss) in consolidated subsidiaries	6,621	-3,041	41,165	51,692
Earnings of unconsolidated joint venture	0	0	0	0
Interest expense (income), net	9,381	9,696	34,315	29,028
Income (loss) before income taxes	-6,602	-16,617	-7,263	11,710
Income tax expense (benefit)	-750	-1,118	-1,564	-1,551
Consolidated net income (loss)	-5,852	'	-5,699	'
Net loss attributable to noncontrolling interest	0	'	0	'
Net income (loss) attributable to Kraton	-5,852	-15,499	-5,699	13,261
Guarantor Subsidiaries	'	'	'	'
Supplemental Guarantor Information [Line Items]	'	'	'	'
Sales revenue	156,550	163,070	498,775	558,547
Cost of goods sold	134,863	147,891	407,224	473,510
Gross profit (loss)	21,687	15,179	91,551	85,037
Operating expenses:	'	'	'	'
Research and development	4,307	4,770	13,087	14,483
Selling, general and administrative	15,268	16,151	50,840	52,124
Depreciation and amortization	7,902	8,715	23,521	25,874
Impairment of long-lived assets	'	5,434	'	5,434
Total operating expenses	27,477	35,070	87,448	97,915
Earnings (loss) in consolidated subsidiaries	0	0	0	0
Earnings of unconsolidated joint venture	0	0	0	0
Interest expense (income), net	-3,766	-3,632	-10,886	-11,145
Income (loss) before income taxes	-2,024	-16,259	14,989	-1,733
Income tax expense (benefit)	11	-661	32	-1,778
Consolidated net income (loss)	-2,035	'	14,957	'
Net loss attributable to noncontrolling interest	0	'	0	'
Net income (loss) attributable to Kraton	-2,035	-15,598	14,957	45
Non-Guarantor Subsidiaries	'	'	'	'
Supplemental Guarantor Information [Line Items]	'	'	'	'
Sales revenue	210,570	218,801	624,015	685,969
Cost of goods sold	185,051	191,437	546,624	580,549
Gross profit (loss)	25,519	27,364	77,391	105,420
Operating expenses:	'	'	'	'
Research and development	3,106	2,631	10,685	8,474
Selling, general and administrative	7,156	7,285	22,554	24,088
Depreciation and amortization	3,832	3,315	10,893	9,731
Impairment of long-lived assets	'	0	'	0
Total operating expenses	14,094	13,231	44,132	42,293
Earnings (loss) in consolidated subsidiaries	0	0	0	0
Earnings of unconsolidated joint venture	117	133	372	433
Interest expense (income), net	126	1,570	1,519	4,223
Income (loss) before income taxes	11,416	12,696	32,112	59,337
Income tax expense (benefit)	2,760	139	5,904	7,690
Consolidated net income (loss)	8,656	'	26,208	'
Net loss attributable to noncontrolling interest	-254	'	-182	'
Net income (loss) attributable to Kraton	8,910	12,557	26,390	51,647
Eliminations	'	'	'	'
Supplemental Guarantor Information [Line Items]	'	'	'	'
Sales revenue	-40,011	-39,236	-121,031	-117,812
Cost of goods sold	-40,011	-39,326	-121,031	-117,812
Gross profit (loss)	0	0	0	0
Operating expenses:	'	'	'	'
Research and development	0	0	0	0
Selling, general and administrative	0	0	0	0
Depreciation and amortization	0	0	0	0
Impairment of long-lived assets	'	0	'	0
Total operating expenses	0	0	0	0
Earnings (loss) in consolidated subsidiaries	-769	18,540	-35,466	-64,953
Earnings of unconsolidated joint venture	0	0	0	0
Interest expense (income), net	0	0	0	0
Income (loss) before income taxes	-769	18,540	-35,466	-64,953
Income tax expense (benefit)	0	0	0	0
Consolidated net income (loss)	-769	'	-35,466	'
Net loss attributable to noncontrolling interest	0	'	0	'
Net income (loss) attributable to Kraton	($769)	$18,540	($35,466)	($64,953)

Consolidating_Statement_of_Ope1

Consolidating Statement of Operations (Parenthetical) (Detail)	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2012
Supplemental Guarantor Information [Line Items]	'	'	'
Debt instrument interest rate	6.75%	'	'
6.75% unsecured notes due 2019	'	'	'
Supplemental Guarantor Information [Line Items]	'	'	'
Debt instrument interest rate	6.75%	6.75%	6.75%
Debt instrument maturity date	'2019-03-01	'2019-03-01	'2019-03-01

Consolidating_Statement_of_Com

Consolidating Statement of Comprehensive Income (Loss) (Detail) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Supplemental Guarantor Information [Line Items]	'	'	'	'
Net income (loss) attributable to Kraton	($5,598)	($15,499)	($5,517)	$13,261
Other comprehensive income (loss):	'	'	'	'
Foreign currency translation adjustments, net of tax of $0	9,511	7,020	-3,735	-6,025
Unrealized gain (loss) of net investment hedge, net of tax of $0	-265	-1,155	-490	648
Unrealized gain (loss) on interest rate swaps, net of tax of $0	0	-9	837	-143
Other comprehensive income (loss), net of tax	9,246	5,856	-3,388	-5,520
Comprehensive income (loss) attributable to Kraton	3,648	-9,643	-8,905	7,741
Comprehensive income attributable to noncontrolling interest	178	0	111	0
Consolidated comprehensive income (loss)	3,826	-9,643	-8,794	7,741
Kraton	'	'	'	'
Supplemental Guarantor Information [Line Items]	'	'	'	'
Net income (loss) attributable to Kraton	-5,852	-15,499	-5,699	13,261
Other comprehensive income (loss):	'	'	'	'
Foreign currency translation adjustments, net of tax of $0	0	0	0	0
Unrealized gain (loss) of net investment hedge, net of tax of $0	0	0	0	0
Unrealized gain (loss) on interest rate swaps, net of tax of $0	'	0	0	0
Other comprehensive income (loss), net of tax	0	0	0	0
Comprehensive income (loss) attributable to Kraton	-5,852	'	-5,699	'
Comprehensive income attributable to noncontrolling interest	0	'	0	'
Consolidated comprehensive income (loss)	-5,852	-15,499	-5,699	13,261
Kraton Polymers LLC	'	'	'	'
Supplemental Guarantor Information [Line Items]	'	'	'	'
Net income (loss) attributable to Kraton	-5,852	-15,499	-5,699	13,261
Other comprehensive income (loss):	'	'	'	'
Foreign currency translation adjustments, net of tax of $0	-201	-122	-203	-190
Unrealized gain (loss) of net investment hedge, net of tax of $0	36	-1,155	-189	648
Unrealized gain (loss) on interest rate swaps, net of tax of $0	'	-9	837	-143
Other comprehensive income (loss), net of tax	-165	-1,286	445	315
Comprehensive income (loss) attributable to Kraton	-6,017	'	-5,254	'
Comprehensive income attributable to noncontrolling interest	0	'	0	'
Consolidated comprehensive income (loss)	-6,017	-16,785	-5,254	13,576
Guarantor Subsidiaries	'	'	'	'
Supplemental Guarantor Information [Line Items]	'	'	'	'
Net income (loss) attributable to Kraton	-2,035	-15,598	14,957	45
Other comprehensive income (loss):	'	'	'	'
Foreign currency translation adjustments, net of tax of $0	0	1	0	0
Unrealized gain (loss) of net investment hedge, net of tax of $0	0	0	0	0
Unrealized gain (loss) on interest rate swaps, net of tax of $0	'	0	0	0
Other comprehensive income (loss), net of tax	0	1	0	0
Comprehensive income (loss) attributable to Kraton	-2,035	'	14,957	'
Comprehensive income attributable to noncontrolling interest	0	'	0	'
Consolidated comprehensive income (loss)	-2,035	-15,597	14,957	45
Non-Guarantor Subsidiaries	'	'	'	'
Supplemental Guarantor Information [Line Items]	'	'	'	'
Net income (loss) attributable to Kraton	8,910	12,557	26,390	51,647
Other comprehensive income (loss):	'	'	'	'
Foreign currency translation adjustments, net of tax of $0	9,712	7,141	-3,532	-5,835
Unrealized gain (loss) of net investment hedge, net of tax of $0	-301	0	-301	0
Unrealized gain (loss) on interest rate swaps, net of tax of $0	'	0	0	0
Other comprehensive income (loss), net of tax	9,411	7,141	-3,833	-5,835
Comprehensive income (loss) attributable to Kraton	18,321	'	22,557	'
Comprehensive income attributable to noncontrolling interest	178	'	111	'
Consolidated comprehensive income (loss)	18,499	19,698	22,668	45,812
Eliminations	'	'	'	'
Supplemental Guarantor Information [Line Items]	'	'	'	'
Net income (loss) attributable to Kraton	-769	18,540	-35,466	-64,953
Other comprehensive income (loss):	'	'	'	'
Foreign currency translation adjustments, net of tax of $0	0	0	0	0
Unrealized gain (loss) of net investment hedge, net of tax of $0	0	0	0	0
Unrealized gain (loss) on interest rate swaps, net of tax of $0	'	0	0	0
Other comprehensive income (loss), net of tax	0	0	0	0
Comprehensive income (loss) attributable to Kraton	-769	'	-35,466	'
Comprehensive income attributable to noncontrolling interest	0	'	0	'
Consolidated comprehensive income (loss)	($769)	$18,540	($35,466)	($64,953)

Consolidating_Statement_of_Com1

Consolidating Statement of Comprehensive Income (Loss) (Parenthetical) (Detail) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2012
					6.75% unsecured notes due 2019	6.75% unsecured notes due 2019	6.75% unsecured notes due 2019
Supplemental Guarantor Information [Line Items]	'	'	'	'	'	'	'
Foreign currency translation adjustments, tax effect	$0	$0	$0	$0	'	'	'
Debt instrument interest rate	6.75%	'	6.75%	'	6.75%	6.75%	6.75%
Debt instrument maturity date	'	'	'	'	'2019-03-01	'2019-03-01	'2019-03-01
Unrealized gain (loss) of interest rate swaps, tax effect	0	0	0	0	'	'	'
Unrealized gain (loss) of net investment hedge, tax effect	$0	$0	$0	$0	'	'	'

Consolidating_Statement_of_Cas

Consolidating Statement of Cash Flows (Detail) (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012
Supplemental Guarantor Information [Line Items]	'	'
Cash flows provided by (used in) operating activities	$58,087	$102,188
Cash flows provided by (used in) investing activities:	'	'
Repayments of intercompany loans	0	0
Purchase of property, plant and equipment	-57,922	-42,436
Purchase of software and other intangibles	-3,106	-1,789
Settlement of net investment hedge	-2,490	1,648
Net cash provided by (used in) investing activities	-63,518	-42,577
Cash flows provided by (used in) financing activities:	'	'
Proceeds from debt	40,000	101,250
Repayments of debt	-136,875	-45,626
Capital lease payments	-950	0
Cash contributions from member	0	0
Cash distributions to member	0	0
Contribution from noncontrolling interest	30,216	0
Proceeds from the exercise of stock options	310	820
Debt issuance costs	-4,794	-3,156
Proceeds from (repayments of) intercompany loans	0	0
Net cash provided by (used in) financing activities	-72,093	53,288
Effect of exchange rate differences on cash	-1,012	793
Net increase (decrease) in cash and cash equivalents	-78,536	113,692
Cash and cash equivalents, beginning of period	223,166	88,579
Cash and cash equivalents, end of period	144,630	202,271
Kraton	'	'
Supplemental Guarantor Information [Line Items]	'	'
Cash flows provided by (used in) operating activities	0	0
Cash flows provided by (used in) investing activities:	'	'
Repayments of intercompany loans	0	0
Purchase of property, plant and equipment	0	0
Purchase of software and other intangibles	0	0
Settlement of net investment hedge	0	0
Net cash provided by (used in) investing activities	0	0
Cash flows provided by (used in) financing activities:	'	'
Proceeds from debt	0	0
Repayments of debt	0	0
Capital lease payments	0	'
Cash contributions from member	0	0
Cash distributions to member	-310	-820
Contribution from noncontrolling interest	0	'
Proceeds from the exercise of stock options	310	820
Debt issuance costs	0	0
Proceeds from (repayments of) intercompany loans	0	0
Net cash provided by (used in) financing activities	0	0
Effect of exchange rate differences on cash	0	0
Net increase (decrease) in cash and cash equivalents	0	0
Cash and cash equivalents, beginning of period	0	0
Cash and cash equivalents, end of period	0	0
Kraton Polymers LLC	'	'
Supplemental Guarantor Information [Line Items]	'	'
Cash flows provided by (used in) operating activities	14,859	-69,068
Cash flows provided by (used in) investing activities:	'	'
Repayments of intercompany loans	68,962	14,132
Purchase of property, plant and equipment	0	0
Purchase of software and other intangibles	0	0
Settlement of net investment hedge	-2,490	1,648
Net cash provided by (used in) investing activities	66,472	15,780
Cash flows provided by (used in) financing activities:	'	'
Proceeds from debt	0	101,250
Repayments of debt	-96,875	-45,626
Capital lease payments	0	'
Cash contributions from member	15,544	820
Cash distributions to member	0	0
Contribution from noncontrolling interest	0	'
Proceeds from the exercise of stock options	0	0
Debt issuance costs	0	-3,156
Proceeds from (repayments of) intercompany loans	0	0
Net cash provided by (used in) financing activities	-81,331	53,288
Effect of exchange rate differences on cash	0	0
Net increase (decrease) in cash and cash equivalents	0	0
Cash and cash equivalents, beginning of period	0	0
Cash and cash equivalents, end of period	0	0
Guarantor Subsidiaries	'	'
Supplemental Guarantor Information [Line Items]	'	'
Cash flows provided by (used in) operating activities	-65,805	136,814
Cash flows provided by (used in) investing activities:	'	'
Repayments of intercompany loans	0	0
Purchase of property, plant and equipment	-26,414	-33,094
Purchase of software and other intangibles	-2,861	-1,842
Settlement of net investment hedge	0	0
Net cash provided by (used in) investing activities	-29,275	-34,936
Cash flows provided by (used in) financing activities:	'	'
Proceeds from debt	40,000	0
Repayments of debt	-40,000	0
Capital lease payments	-950	'
Cash contributions from member	0	0
Cash distributions to member	0	0
Contribution from noncontrolling interest	0	'
Proceeds from the exercise of stock options	0	0
Debt issuance costs	-3,310	0
Proceeds from (repayments of) intercompany loans	28,891	-33,722
Net cash provided by (used in) financing activities	24,631	-33,722
Effect of exchange rate differences on cash	0	0
Net increase (decrease) in cash and cash equivalents	-70,449	68,156
Cash and cash equivalents, beginning of period	80,903	6,030
Cash and cash equivalents, end of period	10,454	74,186
Non-Guarantor Subsidiaries	'	'
Supplemental Guarantor Information [Line Items]	'	'
Cash flows provided by (used in) operating activities	109,033	34,442
Cash flows provided by (used in) investing activities:	'	'
Repayments of intercompany loans	0	0
Purchase of property, plant and equipment	-31,508	-9,342
Purchase of software and other intangibles	-245	53
Settlement of net investment hedge	0	0
Net cash provided by (used in) investing activities	-31,753	-9,289
Cash flows provided by (used in) financing activities:	'	'
Proceeds from debt	0	0
Repayments of debt	0	0
Capital lease payments	0	'
Cash contributions from member	-15,544	0
Cash distributions to member	310	0
Contribution from noncontrolling interest	30,216	'
Proceeds from the exercise of stock options	0	0
Debt issuance costs	-1,484	0
Proceeds from (repayments of) intercompany loans	-97,853	19,590
Net cash provided by (used in) financing activities	-84,355	19,590
Effect of exchange rate differences on cash	-1,012	793
Net increase (decrease) in cash and cash equivalents	-8,087	45,536
Cash and cash equivalents, beginning of period	142,263	82,549
Cash and cash equivalents, end of period	134,176	128,085
Eliminations	'	'
Supplemental Guarantor Information [Line Items]	'	'
Cash flows provided by (used in) operating activities	0	0
Cash flows provided by (used in) investing activities:	'	'
Repayments of intercompany loans	-68,962	-14,132
Purchase of property, plant and equipment	0	0
Purchase of software and other intangibles	0	0
Settlement of net investment hedge	0	0
Net cash provided by (used in) investing activities	-68,962	-14,132
Cash flows provided by (used in) financing activities:	'	'
Proceeds from debt	0	0
Repayments of debt	0	0
Capital lease payments	0	'
Cash contributions from member	0	-820
Cash distributions to member	0	820
Contribution from noncontrolling interest	0	'
Proceeds from the exercise of stock options	0	0
Debt issuance costs	0	0
Proceeds from (repayments of) intercompany loans	68,962	14,132
Net cash provided by (used in) financing activities	68,962	14,132
Effect of exchange rate differences on cash	0	0
Net increase (decrease) in cash and cash equivalents	0	0
Cash and cash equivalents, beginning of period	0	0
Cash and cash equivalents, end of period	$0	$0

Consolidating_Statement_of_Cas1

Consolidating Statement of Cash Flows (Parenthetical) (Detail)	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2012
Supplemental Guarantor Information [Line Items]	'	'	'
Debt instrument interest rate	6.75%	'	'
6.75% unsecured notes due 2019	'	'	'
Supplemental Guarantor Information [Line Items]	'	'	'
Debt instrument interest rate	6.75%	6.75%	6.75%
Debt instrument maturity date	'2019-03-01	'2019-03-01	'2019-03-01