CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Income Statement [Abstract]
Revenue	$ 1,169,258	$ 1,089,752	$ 1,046,487
Cost of revenue (exclusive of depreciation, shown separately below)	615,042	565,168	543,211
Other operating expenses:
Research and development	143,201	137,913	134,691
Selling, general and administrative	247,613	238,018	214,694
Depreciation	23,189	23,598	24,835
Restructuring and reorganization charges	16,336	46,308	4,870
Total operating expenses	1,045,381	1,011,005	922,301
Operating income	123,877	78,747	124,186
Other income (expense):
Interest expense	(31,176)	(16,432)	(14,569)
Amortization of original issue discount	0	0	(3,021)
Interest and investment income, net	4,336	877	365
Loss on derivative liability upon debt conversion	0	(7,456)	0
Other, net	(4,686)	5,045	(6,015)
Total other	(31,526)	(17,966)	(23,240)
Income before income taxes	92,351	60,781	100,946
Income tax provision	(26,105)	(16,721)	(28,615)
Net income	$ 66,246	$ 44,060	$ 72,331
Weighted-average shares outstanding:
Basic	29,938	31,028	31,776
Diluted	30,115	31,298	32,010
Earnings per common share:
Basic	$ 2.21	$ 1.42	$ 2.28
Diluted	$ 2.2	$ 1.41	$ 2.26