CONDENSED CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012	Jun. 30, 2012	Dec. 31, 2011
Current assets:
Cash and cash equivalents	$ 88,669	$ 223,166	$ 227,962	$ 88,579
Receivables, net of allowances of $502 and $401	163,681	124,635
Inventories of products	336,622	340,323
Inventories of materials and supplies	10,730	10,331
Deferred income taxes	8,117	7,869
Other current assets	27,439	28,363
Total current assets	635,258	734,687
Property, plant and equipment, less accumulated depreciation of $330,881 and $311,779	387,883	381,205
Intangible assets, less accumulated amortization of $73,546 and $68,531	60,222	63,393
Investment in unconsolidated joint venture	13,231	13,582
Debt issuance costs	10,257	10,846
Deferred income taxes	344	79
Other long-term assets	25,339	25,397
Total assets	1,132,534	1,229,189
Current liabilities:
Current portion of long-term debt	0	15,074
Accounts payable-trade	97,468	99,167
Other payables and accruals	39,132	50,978
Deferred income taxes	464	513
Due to related party	21,165	16,080
Total current liabilities	158,229	181,812
Long-term debt, net of current portion	351,066	432,943
Deferred income taxes	21,101	22,273
Other long-term liabilities	102,529	99,946
Total liabilities	632,925	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 June 30, 2013; 32,277 shares issued and outstanding at December 31, 2012	325	323
Additional paid in capital	359,795	354,957
Retained earnings	171,526	171,445
Accumulated other comprehensive loss	(47,144)	(34,510)
Total Kraton stockholders' equity	484,502	492,215
Noncontrolling interest	15,107	0
Total equity	499,609	492,215	539,175	517,794
Total liabilities and equity	$ 1,132,534	$ 1,229,189