Consolidated Condensed Statements of Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Income Statement [Abstract]
Product revenues	$ 332,962	$ 243,384	$ 861,334	$ 797,924
Type of Revenue [Extensible List]	us-gaap:ProductMember	us-gaap:ProductMember	us-gaap:ProductMember	us-gaap:ProductMember
Cost of sales	$ 252,610	$ 173,997	$ 657,492	$ 561,655
Gross margin	80,352	69,387	203,842	236,269
Operating expenses:
Net research and development expenses	22,666	20,590	62,425	56,420
Selling, general and administrative expenses	34,859	27,344	96,109	83,093
Restructuring expenses	6	749	561	3,631
Total operating expenses	57,531	48,683	159,095	143,144
Operating income	22,821	20,704	44,747	93,125
Interest income (expense), net	714	(515)	(1,285)	(2,184)
Foreign currency (loss) gain	(8,285)	133	(1,516)	391
Other income	361	10	698	13
Earnings before income tax	15,611	20,332	42,644	91,345
Income tax expense	5,784	4,646	13,998	17,959
Net income	$ 9,827	$ 15,686	$ 28,646	$ 73,386
Basic earnings per share	$ 0.30	$ 0.47	$ 0.87	$ 2.22
Diluted earnings per share	$ 0.29	$ 0.47	$ 0.86	$ 2.19
Weighted average number of shares – basic	33,162,181	33,177,743	33,105,854	33,075,399
Weighted average number of shares – diluted	33,470,439	33,609,084	33,459,750	33,488,900