Note 8 - Goodwill and Identifiable Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2018

Notes Tables

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

	December 31, 201 8						December 31, 201 7
	Gross		Accumulated Amortization		Net		Gross		Accumulated Amortization		Net
Developed technology	$	186,800	$	86,378	$	100,422	$	126,300	$	53,533	$	72,767
Customer relationships		70,540		21,681		48,859		70,540		11,954		58,586
Trade name		2,310		1,350		960		2,310		888		1,422
Patents		1,579		881		698		1,579		734		845
Software		61,406		31,898		29,508		47,039		18,226		28,813
In-process research and development		—		—		—		60,500		—		60,500
	$	322,635	$	142,188	$	180,447	$	308,268	$	85,335	$	222,933

Finite-lived Intangible Assets Amortization Expense [Table Text Block]

	Year Ended December 31,
	201 8		2017		2016
Cost of revenue	$	32,845	$	28,502	$	12,223
Research and development		19,311		18,352		336
Sales and marketing		9,727		9,727		1,209
General and administrative		609		643		402
	$	62,492	$	57,224	$	14,170

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]

2019	$	68,159
2020		38,841
2021		32,887
2022		24,261
2023		15,460
Thereafter		839
	$	180,447

Finite Lived Intangible Assets Remaining Amortization Period [Table Text Block]

Developed technology	3.5
Customer relationship	5.0
Trade name	2.6
Patents	8.1
Software	1.7