Goodwill and Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2018

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, 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
	Currency translation adjustments		(268)		(1,169)		(869)		(395)		(2,701)
Balance as of December 31, 2018		$	47,303	$	19,335	$	14,587	$	2,108	$	83,333

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

	Gross Carrying				Accumulated
	Amount				Amortization
	2018		2017		2018		2017
Customer lists and rights to sell	$	74,989	$	76,581	$	29,587	$	25,394
Trademarks, formulations and product technology		33,275		33,025		16,469		14,309
Other		5,840		6,114		5,566		5,514
Total definite-lived intangible assets	$	114,104	$	115,720	$	51,622	$	45,217

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

For the year ended December 31, 2019	$	7,160
For the year ended December 31, 2020		6,879
For the year ended December 31, 2021		6,529
For the year ended December 31, 2022		6,374
For the year ended December 31, 2023		6,155