Business Segments (Tables)

12 Months Ended

Dec. 31, 2017

Segment Disclosures [Abstract]

Schedule of Segment Reporting Information, by Segment [Table Text Block]

		2017		2016		2015
Segment assets
	North America (including Corporate)	$	324,260	$	321,404	$	317,082
	EMEA		177,267		147,021		162,647
	Asia/Pacific		196,891		200,218		181,389
	South America		23,708		23,385		19,609
	Total segment assets	$	722,126	$	692,028	$	680,727

		2017		2016		2015
Segment long-lived assets
	North America (including Corporate)	$	88,818	$	86,775	$	87,421
	EMEA		28,507		25,630		27,101
	Asia/Pacific		22,427		22,040		23,096
	South America		2,691		2,858		2,573
	Total segment long-lived assets	$	142,443	$	137,303	$	140,191

		2017		2016		2015
Capital expenditures
	North America (including Corporate)	$	3,919	$	2,918	$	4,166
	EMEA		3,936		3,263		3,081
	Asia/Pacific		2,458		3,269		3,169
	South America		559		504		617
	Total segment capital expenditures	$	10,872	$	9,954	$	11,033

		2017		2016		2015
Depreciation
	North America	$	5,791	$	5,672	$	5,577
	EMEA		3,368		3,323		2,975
	Asia/Pacific		2,669		2,765		2,812
	South America		649		672		832
	Total segment depreciation	$	12,477	$	12,432	$	12,196

		2017		2016		2015
Net sales
	North America	$	356,598	$	336,174	$	344,248
	EMEA		226,243		200,917		179,717
	Asia/Pacific		201,008		179,131		181,056
	South America		36,233		30,443		32,534
	Total net sales	$	820,082	$	746,665	$	737,555
		2017		2016		2015
Operating earnings, excluding indirect operating expenses
	North America	$	77,694	$	77,833	$	80,239
	EMEA		35,350		33,810		28,236
	Asia/Pacific		48,342		45,866		45,107
	South America		3,927		1,386		1,785
	Total operating earnings, excluding indirect operating expenses		165,313		158,895		155,367

Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Table Text Block]

		2017		2016		2015
Operating earnings, excluding indirect operating expenses
	North America	$	77,694	$	77,833	$	80,239
	EMEA		35,350		33,810		28,236
	Asia/Pacific		48,342		45,866		45,107
	South America		3,927		1,386		1,785
Total operating earnings, excluding indirect operating expenses			165,313		158,895		155,367
Non-operating charges			(65,142)		(65,316)		(66,999)
Restructuring and related activities			—		439		(6,790)
Combination-related expenses			(29,938)		(1,531)		—
Depreciation of corporate assets and amortization			(7,489)		(7,134)		(7,010)
Operating income			62,744		85,353		74,568
Other expense, net			(718)		(492)		(3,377)
Interest expense			(3,892)		(2,889)		(2,585)
Interest income			2,534		2,037		1,624
Income before taxes and equity in net income of
	associated companies	$	60,668	$	84,009	$	70,230

Schedule of Product Information [Table Text Block]

	2017		2016		2015
Rolling lubricants	17.8	%	19.0	%	18.6	%
Machining and grinding compounds	15.8	%	14.9	%	15.3	%
Hydraulic fluids	11.6	%	12.0	%	12.6	%
Corrosion preventives	11.4	%	11.8	%	12.0	%
Specialty greases	10.0	%	10.1	%	8.5	%