Goodwill and Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2017

Goodwill And Intangible Assets Disclosure [Abstract]

Schedule of Goodwill [Table Text Block]

		North						South
		America		EMEA		Asia/Pacific		America		Total
Balance as of December 31, 2015		$	42,443	$	19,280	$	15,244	$	2,144	$	79,111
	Goodwill additions (reductions)		3,311		(114)		—		—		3,197
	Currency translation adjustments		(264)		(977)		(678)		415		(1,504)
Balance as of December 31, 2016			45,490		18,189		14,566		2,559		80,804
	Goodwill additions		1,832		—		—		—		1,832
	Currency translation adjustments		249		2,315		890		(56)		3,398
Balance as of December 31, 2017		$	47,571	$	20,504	$	15,456	$	2,503	$	86,034

Schedule of Finite-Lived Intangible Assets [Table Text Block]

	Gross Carrying				Accumulated
	Amount				Amortization
	2017		2016		2017		2016
Customer lists and rights to sell	$	76,581	$	71,454	$	25,394	$	20,043
Trademarks, formulations and product technology		33,025		31,436		14,309		11,748
Other		6,114		6,023		5,514		5,151
Total definite-lived intangible assets	$	115,720	$	108,913	$	45,217	$	36,942

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]

For the year ended December 31, 2018	$	7,348
For the year ended December 31, 2019		7,244
For the year ended December 31, 2020		6,956
For the year ended December 31, 2021		6,576
For the year ended December 31, 2022		6,449