Condensed Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
Revenues:
Total revenues	$ 1,511,041	$ 1,534,130
Costs and expenses:
Cost of services and product development	429,307	475,030
Selling, general and administrative	726,349	730,308
Depreciation	25,365	28,866
Amortization of intangibles	20,066	21,894
Gain from sale of divested operation	(6,138)	0
Total costs and expenses	1,194,949	1,256,098
Operating income	316,092	278,032
Interest expense, net	(21,048)	(13,413)
Other (expense) income, net	(2,632)	2,389
Income before income taxes	292,412	267,008
Provision for income taxes	70,068	56,069
Net income	$ 222,344	$ 210,939
Net income per share:
Basic (in dollars per share)	$ 3.19	$ 2.73
Diluted (in dollars per share)	$ 3.18	$ 2.71
Weighted average shares outstanding:
Basic (in shares)	69,796	77,357
Diluted (in shares)	69,965	77,790
Insights
Revenues:
Total revenues	$ 1,294,195	$ 1,255,569
Conferences
Revenues:
Total revenues	78,325	72,597
Consulting
Revenues:
Total revenues	119,129	139,706
Other
Revenues:
Total revenues	$ 19,392	$ 66,258