INTANGIBLE ASSETS - (Tables)

12 Months Ended

Dec. 31, 2017

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Intangible Assets and Goodwill

The following table summarizes intangible assets:

	As of December 31, 2017
	Estimated Useful Lives	Gross		Accumulated Amortization			Net
Indefinite-lived intangible assets:
Trademarks	—	$	12,900	$	—		$	12,900
In-process research and development	—	900		—			900
Other	—	242		—			242
Subtotal		14,042		—			14,042
Subject to amortization
Developed technology	4 - 6 years	62,000		(61,808		)	192
Licensed technology	4 - 6 years	52,800		(52,602		)	198
Customer relationships	4 - 7 years	29,700		(29,700		)	—
Patents and other	2 - 17 years	6,060		(1,593		)	4,467
Subtotal		150,560		(145,703		)	4,857
Total		$	164,602	$	(145,703	)	$	18,899

	As of December 31, 2016
	Estimated Useful Lives	Gross		Accumulated Amortization			Net
Indefinite-lived intangible assets:
Trademarks	—	$	12,900	$	—		$	12,900
In-process research and development	—	900		—			900
Other	—	220		—			220
Subtotal		14,020		—			14,020
Subject to amortization
Developed technology	4 - 6 years	62,000		(58,026		)	3,974
Licensed technology	4 - 6 years	52,600		(52,475		)	125
Customer relationships	4 - 7 years	29,700		(27,048		)	2,652
Patents and other	2 - 17 years	3,302		(1,315		)	1,987
Subtotal		147,602		(138,864		)	8,738
Total		$	161,622	$	(138,864	)	$	22,758

Schedule of Expected Amortization Expense

As of December 31, 2017, the expected amortization expense for each of the next five years and thereafter is as follows:

2018	$	615
2019	600
2020	575
2021	516
2022	516
Thereafter	2,035
Total	$	4,857