CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (LOSS) - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Net sales	$ 1,189,935	$ 863,381	$ 681,003
Cost of sales	461,297	322,471	264,672
Gross margin	728,638	540,910	416,331
Operating expenses:
Sales, general and administrative	401,575	515,007	307,286
Research and development	233,810	194,026	123,195
Total operating expenses	635,385	709,033	430,481
Income (loss) from operations	93,253	(168,123)	(14,150)
Interest and other income, net	103,265	26,748	7,859
Income (loss) before provision (benefit) for income taxes	196,518	(141,375)	(6,291)
Provision (benefit) for income taxes	49,379	(81,357)	(4,567)
Net income (loss)	$ 147,139	$ (60,018)	$ (1,724)
Net income (loss) per share:
Basic (in dollars per share)	$ 2.07	$ (0.91)	$ (0.03)
Diluted (in dollars per share)	$ 2.03	$ (0.91)	$ (0.03)
Weighted average shares outstanding:
Basic (in shares)	71,093	66,191	61,782
Diluted (in shares)	72,534	66,191	61,782
Net income (loss)	$ 147,139	$ (60,018)	$ (1,724)
Foreign currency translation adjustments	(4,818)	(1,251)	1,237
Unrealized losses on available-for-sale investments	(1,044)	(207)
Comprehensive income (loss)	141,277	(61,476)	(487)
Product
Net sales	801,388	608,525	500,250
Cost of sales	363,219	260,098	224,131
Service
Net sales	388,547	254,856	180,753
Cost of sales	$ 98,078	$ 62,373	$ 40,541