CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands		12 Months Ended
		Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Income Statement [Abstract]
Revenue		$ 1,006,090	$ 1,037,098	$ 811,020
Cost of revenue		284,185	277,271	206,421
Gross margin		721,905	759,827	604,599
Research, development, and engineering expenses		141,133	135,372	130,982
Selling, general, and administrative expenses		312,107	309,354	267,593
Loss from Catastrophes		20,779	0	0
Restructuring charges		1,657	0	15,924
Intangible asset impairment charges		0	0	19,571
Operating income		246,229	315,101	170,529
Foreign currency gain (loss)		(1,837)	(2,270)	3,697
Investment income		6,715	6,660	12,994
Other income (expense)		(412)	(591)	(309)
Income before income tax expense		250,695	318,900	186,911
Income tax expense on continuing operations		35,170	39,019	10,725
Net income		$ 215,525	$ 279,881	$ 176,186
Net Income per weighted-average common and common-equivalent share:
Net income (in dollars per share)		$ 1.24	$ 1.59	$ 1.02
Diluted earnings per weighted-average common and common-equivalent share (1):
Net income (in dollars per share)		$ 1.23	$ 1.56	$ 1.00
Weighted-average common and common-equivalent shares outstanding:
Basic (in shares)		173,407	176,463	173,489
Diluted (in shares)		174,869	179,916	176,592
Cash dividends per common share (in dollars per share)	[1]	$ 0.265	$ 0.245	$ 2.225

[1] 172,440