Identifiable Intangible Assets - (Tables)

6 Months Ended

Jun. 30, 2017

Identifiable Intangible Assets [Abstract]

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

Purchased intangible assets as of June 30, 2017 and December 31, 2016 are as follows:

	Gross Carrying Amount		Accumulated Amortization		Net
June 30, 2017
Finite-lived intangibles:
Developed technology	$	65,527	$	57,790	$	7,737
Customer and distributor relationships	9,560		8,670		890
Trade names	4,361		3,725		636
Total identifiable intangible assets	$	79,448	$	70,185	$	9,263
December 31, 2016
Finite-lived intangibles:
Developed technology	$	65,527	$	56,986	$	8,541
Customer and distributor relationships	9,560		8,514		1,046
Trade names	4,361		3,675		686
Total identifiable intangible assets	$	79,448	$	69,175	$	10,273