Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Current Assets:
Cash and cash equivalents	$ 273,988	$ 298,894
Receivables, net	323,059	293,541
Inventories (Note 6)	195,169	172,748
Other current assets	22,816	23,553
Total current assets	815,032	788,736
Property, Plant and Equipment:
Cost	1,648,841	1,603,286
Less: Accumulated depreciation	(1,050,126)	(1,004,843)
Property, plant and equipment, net	598,715	598,443
Goodwill, net	22,480	25,118
Other intangible assets, net	14,988	18,538
Long-term investments (Note 3)	28,055	28,270
Other non-current assets	12,961	11,756
Total assets	1,492,231	1,470,861
Current Liabilities:
Current maturities of long-term debt (Note 13)	23,686	22,500
Accounts payable	209,302	204,977
Accrued liabilities	93,895	92,776
Total current liabilities	326,883	320,253
Deferred income taxes	18,798	10,962
Long-term debt, less current maturities (Notes 13)	262,551	268,299
Other non-current liabilities	105,585	130,433
Commitments and Contingencies (Note 7)
Equity:
Common stock, $1 par value; authorized 60,000,000 shares; 26,286,587 issued shares in 2018 and 26,070,787 issued shares in 2017	26,287	26,071
Additional paid-in capital	180,368	170,408
Accumulated other comprehensive loss (Note 10)	(126,007)	(99,563)
Retained earnings	792,134	721,741
Less: Common treasury stock, at cost, 3,773,946 shares in 2018 and 3,561,509 shares in 2017	(95,131)	(78,561)
Total Stepan Company stockholders’ equity	777,651	740,096
Noncontrolling interests (Note 2)	763	818
Total equity	778,414	740,914
Total liabilities and equity	$ 1,492,231	$ 1,470,861