CONDENSED CONSOLIDATED STATEMENTS OF INCOME - UNAUDITED - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Income Statement [Abstract]
Revenue	$ 273,308	$ 263,209	$ 799,876	$ 771,462
Cost of revenue (exclusive of depreciation, shown separately below)	138,462	134,705	415,014	401,185
Other operating expenses:
Research and development	35,754	34,384	103,365	99,350
Selling, general and administrative	59,026	54,923	173,833	152,988
Depreciation	5,896	6,225	17,685	18,604
Restructuring and reorganization charges	14,193	209	46,304	3,029
Total operating expenses	253,331	230,446	756,201	675,156
Operating income	19,977	32,763	43,675	96,306
Other income (expense):
Interest expense	(4,328)	(3,636)	(10,286)	(10,861)
Amortization of original issue discount	0	(794)	0	(2,350)
Interest and investment income, net	281	78	537	286
Loss on derivative liability upon debt conversion	0	0	(7,456)	0
Other, net	2,790	(5,875)	6,044	(6,530)
Total other	(1,257)	(10,227)	(11,161)	(19,455)
Income before income taxes	18,720	22,536	32,514	76,851
Income tax provision	(6,239)	(6,406)	(8,603)	(21,769)
Net income	$ 12,481	$ 16,130	$ 23,911	$ 55,082
Weighted-average shares outstanding:
Basic	30,941	31,756	31,219	31,825
Diluted	31,159	31,960	31,487	32,033
Earnings per common share:
Basic	$ 0.40	$ 0.51	$ 0.77	$ 1.73
Diluted	$ 0.40	$ 0.50	$ 0.76	$ 1.72