Business Segments (Tables)

3 Months Ended

Mar. 31, 2015

Segment Reporting Measurement Disclosures [Abstract]

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

		Three Months Ended
		March 31,
		2015		2014
Net sales
	North America	$	83,002	$	76,716
	EMEA		43,185		49,189
	Asia/Pacific		45,000		41,937
	South America		10,143		13,832
Total net sales		$	181,330	$	181,674
Operating earnings, excluding indirect operating expenses
	North America	$	17,825	$	15,711
	EMEA		6,571		8,096
	Asia/Pacific		10,434		9,918
	South America		1,252		1,509
Total operating earnings, excluding indirect operating expenses			36,082		35,234
Indirect operating expenses			(16,591)		(15,048)
Amortization expense			(1,627)		(813)
Consolidated operating income			17,864		19,373
Other expense, net			(194)		(473)
Interest expense			(587)		(525)
Interest income			320		453
Consolidated income before taxes and equity in net income of associated companies		$	17,403	$	18,828