Selected Quarterly Financial Data (Tables)

12 Months Ended

Dec. 31, 2018

Quarterly Financial Information Disclosure [Abstract]

Selected Quarterly Financial Data

	2018
Quarter	First			Second			Third			Fourth			Year
Net Sales	$	499,335		$	519,866		$	507,997		$	466,659		$	1,993,857
Gross Profit		89,570			89,280			84,125			78,528			341,503
Operating Income		39,655			44,685			27,694			39,385			151,419
Interest, net		(3,151	)		(2,672	)		(2,797	)		(2,151	)		(10,771	)
Income Before Income Taxes		37,664			42,497			25,243			34,519			139,923
Net Income		30,716			32,923			22,168			26,943			112,750
Net Income Attributable to Stepan Company		30,723			32,925			22,168			26,946			112,762
Per Diluted Share		1.31			1.41			0.95			1.16			4.83

	2017
Quarter	First			Second			Third			Fourth			Year
Net Sales	$	468,269		$	495,101		$	487,814		$	473,823		$	1,925,007
Gross Profit (a)		92,119			89,988			75,576			80,839			338,522
Operating Income (a)		46,230			39,133			30,434			31,398			147,195
Interest, net		(2,992	)		(2,863	)		(2,763	)		(2,826	)		(11,444	)
Income Before Income Taxes		44,330			37,063			29,312			28,532			139,237
Net Income		31,912			27,896			21,853			9,886			91,547
Net Income Attributable to Stepan Company		31,913			27,882			21,899			9,884			91,578
Per Diluted Share		1.37			1.19			0.94			0.42			3.92

(a) The 2017 gross profit and operating income line items have been immaterially changed from the amounts originally reported as a result of the Company’s first quarter 2018 adoption of ASU No. 2017-7, Compensation –Retirement Benefits (Topic 715): Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost.