CONDENSED CONSOLIDATED STATEMENTS OF INCOME - UNAUDITED - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Income Statement [Abstract]
Revenue	$ 290,318	$ 286,327	$ 585,453	$ 585,066
Cost of revenue (exclusive of depreciation, shown separately below)	152,892	151,142	310,779	306,163
Other operating expenses:
Research and development	38,411	36,645	74,506	72,109
Selling, general and administrative	61,159	62,686	122,881	121,833
Depreciation	5,337	5,573	10,973	11,293
Restructuring and reorganization charges	7,099	2,075	9,097	7,269
Total operating expenses	264,898	258,121	528,236	518,667
Operating income	25,420	28,206	57,217	66,399
Other income (expense):
Interest expense	(7,698)	(7,837)	(15,204)	(15,056)
Interest income	2,103	772	4,719	1,341
Other, net	174	(1,428)	732	(3,860)
Total other	(5,421)	(8,493)	(9,753)	(17,575)
Income before income taxes	19,999	19,713	47,464	48,824
Income tax provision	(6,170)	(5,759)	(14,168)	(13,942)
Net income	$ 13,829	$ 13,954	$ 33,296	$ 34,882
Weighted-average shares outstanding:
Basic	28,546	30,629	28,531	30,524
Diluted	28,600	30,726	28,698	30,668
Earnings per common share:
Basic	$ 0.48	$ 0.46	$ 1.17	$ 1.14
Diluted	$ 0.48	$ 0.45	$ 1.16	$ 1.14