Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Revenues:
Product	$ 517,944	$ 388,397	$ 360,344
Services and other revenues	174,679	96,162	80,556
Total revenues	692,623	484,559	440,900
Cost of revenues:
Cost of product revenues	302,437	198,418	173,419
Cost of services and other revenues	76,386	38,211	33,621
Total cost of revenues	378,823	236,629	207,040
Gross profit	313,800	247,930	233,860
Operating expenses:
Research and development	57,799	35,160	27,802
Selling, general and administrative	249,520	167,581	156,475
Gain on business combination	0	(3,443)	0
Total operating expenses	307,319	199,298	184,277
Income from operations	6,481	48,632	49,583
Interest and other income (expense), net	(8,429)	(2,388)	(1,079)
Income (loss) before provision for income taxes	(1,948)	46,244	48,504
Provision for (benefit from) income taxes	(2,551)	15,484	17,986
Net income	$ 603	$ 30,760	$ 30,518
Net income per share:
Basic (in dollars per share)	$ 0.02	$ 0.86	$ 0.86
Diluted (in dollars per share)	$ 0.02	$ 0.84	$ 0.83
Weighted-average shares:
Basic (in shares)	36,156	35,857	35,650
Diluted (in shares)	36,864	36,718	36,622