CONDENSED CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2012	Dec. 31, 2011
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