Goodwill and Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2019

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill [Table Text Block]

The following table presents the changes in the carrying amount of our goodwill (in thousands):

	Total
Balance as of January 1, 2019	$	11,195
Currency translation	46
Balance as of March 31, 2019	$	11,241

Schedule of Intangible Assets and Goodwill [Table Text Block]

Intangible assets, carried at cost less accumulated amortization and amortized on a straight-lined basis, were as follows (in thousands):

	Weighted Average	March 31, 2019
	Amortization Life in Years	Cost		Accumulated Amortization		Net
Patents	10	$	20,314	$	12,475	$	7,839
Customer contracts	9	5,319		5,319		—
Non-contractual customer relationships	9	57,949		15,080		42,869
Trademarks	4	425		425		—
Trade name	15	7,456		1,747		5,709
Developed technology	11	82,507		17,140		65,367
Total amortized intangible assets		$	173,970	$	52,186	$	121,784
IPR&D		$	9,269	—		$	9,269
Total intangible assets		$	183,239	$	52,186	$	131,053

	Weighted Average	December 31, 2018
	Amortization Life in Years	Cost		Accumulated Amortization		Net
Patents	10	$	19,399	$	12,147	$	7,252
Customer contracts	9	5,319		5,272		47
Non-contractual customer relationships	9	57,916		13,363		44,553
Trademarks	4	425		425		—
Trade name	15	7,456		1,618		5,838
Developed technology	11	82,857		15,361		67,496
Total amortized intangible assets		$	173,372	$	48,186	$	125,186
IPR&D		$	8,235			$	8,235
Total intangible assets		$	181,607	$	48,186	$	133,421

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

As of March 31, 2019 estimated annual amortization for our intangible assets for each of the next five years is approximately (in thousands):

Remainder of 2019	$	17,048
2020	16,099
2021	15,897
2022	15,773
2023	15,624
Thereafter	41,343
Total	$	121,784