Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Revenue	$ 259,422	$ 168,813	$ 611,409	$ 461,183
Cost of revenue	116,382	75,655	274,329	206,794
Gross profit	143,040	93,158	337,080	254,389
Operating expenses:
Research and development	37,717	27,742	95,346	80,746
Selling, general and administrative	43,503	34,692	116,550	100,302
Litigation expense	1,841	692	6,264	1,473
Total operating expenses	83,061	63,126	218,160	182,521
Income from operations	59,979	30,032	118,920	71,868
Other income, net	2,494	2,257	5,980	7,827
Income before income taxes	62,473	32,289	124,900	79,695
Income tax expense	6,907	2,761	3,412	3,293
Net income	$ 55,566	$ 29,528	$ 121,488	$ 76,402
Net income per share
Basic (in dollars per share)	$ 1.24	$ 0.68	$ 2.72	$ 1.77
Diluted (in dollars per share)	$ 1.18	$ 0.64	$ 2.59	$ 1.68
Weighted-average shares outstanding:
Basic (in shares)	44,970	43,308	44,737	43,055
Diluted (in shares)	46,955	45,833	46,819	45,516