CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Income Statement [Abstract]
Net sales	$ 482,123	$ 413,121
Cost of goods sold	285,426	274,485
Gross profit	196,697	138,636
Operating expenses
Selling, general and administrative	71,443	58,676
Research and development	28,677	27,659
Amortization of acquisition related intangible assets	3,862	4,023
Other operating expense (income)	(343)	888
Total operating expense	103,639	91,246
Income from operations	93,058	47,390
Other income (expense)
Interest income	826	768
Interest expense	(1,114)	(2,864)
Foreign currency gain (loss), net	1,721	(1,279)
Unrealized gain on investments	(5,548)	3,655
Other income	1,876	2,317
Total other income (expense)	(2,239)	2,597
Income before income taxes and noncontrolling interest	90,819	49,987
Income tax provision	16,646	9,434
Net income	74,173	40,553
Less net income attributable to noncontrolling interest	(1,482)	(1,101)
Net income attributable to common stockholders	$ 72,691	$ 39,452
Earnings per share attributable to common stockholders:
Basic	$ 1.61	$ 0.89
Diluted	$ 1.59	$ 0.87
Number of shares used in earnings per share computation:
Basic	45,104	44,408
Diluted	45,844	45,243