CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Income Statement [Abstract]
Net sales	$ 521,273	$ 471,422	$ 1,504,368	$ 1,324,991
Cost of goods sold	303,455	290,191	883,327	845,322
Gross profit	217,818	181,231	621,041	479,669
Operating expenses
Selling, general and administrative	68,545	67,803	209,055	186,759
Research and development	32,787	31,458	92,226	89,104
Amortization of acquisition related intangible assets	3,938	4,056	11,780	12,139
Other operating expense (income)	102	667	(3,762)	1,673
Total operating expense	105,372	103,984	309,299	289,675
Income from operations	112,446	77,247	311,742	189,994
Other (expense) income
Interest income	862	765	2,549	2,351
Interest expense	(2,724)	(1,417)	(5,428)	(6,298)
Foreign currency gain (loss), net	(1,008)	805	2,532	(984)
Unrealized (loss) gain on investments	(2,648)	5,922	(15,960)	14,838
Other income	2,218	2,244	5,741	6,398
Total other (expense) income	(3,300)	8,319	(10,566)	16,305
Income before income taxes and noncontrolling interest	109,146	85,566	301,176	206,299
Income tax provision	20,172	14,766	55,279	36,320
Net income	88,974	70,800	245,897	169,979
Less net income attributable to noncontrolling interest	(2,588)	(2,376)	(6,665)	(6,729)
Net income attributable to common stockholders	$ 86,386	$ 68,424	$ 239,232	$ 163,250
Earnings per share attributable to common stockholders:
Basic	$ 1.90	$ 1.52	$ 5.28	$ 3.65
Diluted	$ 1.88	$ 1.50	$ 5.21	$ 3.59
Number of shares used in earnings per share computation:
Basic	45,475	44,986	45,283	44,689
Diluted	46,014	45,642	45,938	45,507