CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Income Statement [Abstract]
Net sales	$ 1,482,073	$ 1,311,120	$ 1,661,739
Cost of goods sold	1,019,637	875,258	1,003,557
Gross profit	462,436	435,862	658,182
Operating expenses
Selling, general and administrative	241,606	233,913	257,939
Research and development	162,175	134,051	134,868
Amortization of acquisition related intangible assets	22,227	16,499	15,282
Loss (gain) on disposal of fixed assets	572	(7,641)	(2,045)
Restructuring charge	394	8,591	1,583
Other operating income	0	(1)	(16)
Total operating expense	426,974	385,412	407,611
Income from operations	35,462	50,450	250,571
Other (expense) income
Interest income	28,304	18,303	13,338
Interest expense	(2,776)	(2,334)	(5,700)
Foreign currency loss, net	(12,818)	(6,308)	(5,264)
Unrealized gain (loss) on investments	28,561	(321)	18,267
Impairment of equity investment	(5,817)	0	0
Gain on disposal of subsidiary	13,730	0	0
Other (expense) income	(687)	2,892	6,721
Total other (expense) income	48,497	12,232	27,362
Income before income taxes and noncontrolling interest	83,959	62,682	277,933
Income tax provision	14,789	11,840	47,285
Net income	69,170	50,842	230,648
Less: net income attributable to noncontrolling interest	(3,029)	(6,818)	(3,466)
Net income attributable to common stockholders	$ 66,141	$ 44,024	$ 227,182
Earnings per share attributable to common stockholders:
Basic	$ 1.43	$ 0.95	$ 4.96
Diluted	$ 1.43	$ 0.95	$ 4.91
Number of shares used in earnings per share computation:
Basic	46,340	46,208	45,803
Diluted	46,414	46,408	46,311