CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Income Statement [Abstract]
Net sales	$ 440,448	$ 288,669	$ 853,569	$ 569,386
Cost of goods sold	280,646	187,177	555,131	372,052
Gross profit	159,802	101,492	298,438	197,334
Operating expenses
Selling, general and administrative	60,280	45,372	118,956	87,587
Research and development	29,987	21,322	57,646	45,000
Amortization of acquisition related intangible assets	4,060	4,021	8,083	8,242
Other operating expense (income)	118	(92)	1,006	(216)
Total operating expense	94,445	70,623	185,691	140,613
Income from operations	65,357	30,869	112,747	56,721
Other income (expense)
Interest income	818	168	1,586	441
Interest expense	(2,017)	(2,653)	(4,881)	(3,898)
Foreign currency (loss) gain, net	(510,000)	(3,600,000)	(1,789,000)	(3,525,000)
Unrealized gain on investments	5,261		8,916
Other income	1,837	1,274	4,154	1,275
Total other income (expense)	5,389,000	(4,811,000)	7,986,000	(5,707,000)
Income before income taxes and noncontrolling interest	70,746	26,058	120,733	51,014
Income tax provision	12,120	4,670	21,554	9,226
Net income	58,626	21,388	99,179	41,788
Less net income attributable to noncontrolling interest	(3,252)	(355)	(4,353)	(587)
Net income attributable to common stockholders	$ 55,374	$ 21,033	$ 94,826	$ 41,201
Earnings per share attributable to common stockholders:
Basic	$ 1.24	$ 0.41	$ 2.13	$ 0.80
Diluted	$ 1.22	$ 0.40	$ 2.09	$ 0.78
Number of shares used in earnings per share computation:
Basic	44,667	51,527	44,538	51,431
Diluted	45,380	52,569	45,327	52,517