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Goodwill and Other Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2019

Goodwill And Other Intangible Assets Disclosure [Abstract]

Schedule of Intangible Assets and Goodwill [Table Text Block]

														Weighted
														Average
		March 31, 2019							December 31, 2018					Life	(a)
		(in thousands)
Amortizable intangible assets:		Gross			Accumulated Amortization				Gross			Accumulated Amortization
Existing technology	$	41,285		$	(17,173)			$	41,268		$	(16,215)		6.9	Years
Trade names		7,786			(3,007)				7,828			(2,861)		7.5	Years
Distribution agreements/customer relationships		22,538			(9,780)				22,657			(9,509)		10.4	Years
In-process research and development		1,387			(45)				1,387			(30)		7.2	Years
Patents		218			(218)				211			(204)		-	Years
Total amortizable intangible assets		73,214		$	(30,223)				73,351		$	(28,819)

Indefinite-lived intangible assets:
Goodwill		57,375							57,304
Other indefinite-lived intangible assets		1,228							1,232
Total goodwill and other indefinite-lived intangible assets		58,603							58,536

Total intangible assets, gross	$	131,817						$	131,887

(a) Weighted average life as of March 31, 2019.

Goodwill Rollforward [Table Text Block]

			(in thousands)
Balance at December 31, 2018		$	57,304
	Effect of change in currency translation		71
Balance at March 31, 2019		$	57,375