Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2016

Goodwill and Intangible Assets Disclosure [Abstract]

Intangible Assets Schedule

Intangible assets consist of the following:

	As of December 31, 2016
	Carrying Value		Accumulated  Amortization		Net Intangible
Amortizable intangible assets:
Product technology	$	15,700	$	7,614	$	8,086
Patents and trademarks	13,328		4,927		8,401
Customer relationships	5,466		837		4,629
Other	8,013		6,850		1,163
Total	$	42,507	$	20,228	$	22,279

	As of December 31, 2015
	Carrying Value		Accumulated  Amortization		Net Intangible
Amortizable intangible assets:
Product technology	$	10,494	$	7,204	$	3,290
Patents and trademarks	13,048		4,130		8,918
Customer relationships	3,087		287		2,800
Other	7,670		6,693		977
Total	$	34,299	$	18,314	$	15,985

Estimated Amortization Expense Schedule

The estimated amortization expense for each of the years 2017 through 2021 and thereafter is as follows:

Years ending December 31,	Amount
2017	$	3,895
2018	3,733
2019	3,297
2020	3,175
2021	2,954
Thereafter	5,225
	$	22,279