Identifiable Intangible Assets - (Tables)

3 Months Ended

Mar. 31, 2016

Identifiable Intangible Assets [Abstract]

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

Purchased intangible assets as of March 31, 2016 and December 31, 2015 are as follows:

	Gross Carrying Amount		Accumulated Amortization		Net
March 31, 2016
Finite-lived intangibles:
Developed technology	$	65,527	$	55,592	$	9,935
Customer and distributor relationships	9,560		8,258		1,302
Trade names	4,361		3,600		761
Total identifiable intangible assets	$	79,448	$	67,450	$	11,998
December 31, 2015
Finite-lived intangibles:
Developed technology	$	65,527	$	55,110	$	10,417
Customer and distributor relationships	9,560		8,170		1,390
Trade names	4,361		3,575		786
Total identifiable intangible assets	$	79,448	$	66,855	$	12,593