Identifiable Intangible Assets - (Tables)

3 Months Ended

Mar. 31, 2017

Identifiable Intangible Assets [Abstract]

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

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

	Gross Carrying Amount		Accumulated Amortization		Net
March 31, 2017
Finite-lived intangibles:
Developed technology	$	65,527	$	57,388	$	8,139
Customer and distributor relationships	9,560		8,592		968
Trade names	4,361		3,700		661
Total identifiable intangible assets	$	79,448	$	69,680	$	9,768
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