Condensed Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Income Statement [Abstract]
Total revenues	$ 314,485	$ 307,142
Operating costs and expenses:
Direct costs	47,067	45,730
Sales and marketing	117,000	115,920
Research, development, and engineering	17,774	17,914
General, administrative, and other related costs	96,783	101,263
Total operating costs and expenses	278,624	280,827
Income from operations	35,861	26,315
Interest expense, net	(1,769)	(4,480)
Loss on sale of businesses	(3,780)	0
Unrealized loss on short-term investments held at the reporting date, net	(10,705)	(20,345)
Gain on investments, net	0	357
Other loss, net	(104)	(908)
Income before income tax (expense) benefit and loss from equity method investment	19,503	939
Income tax (expense) benefit	(8,231)	616
Loss from equity method investment, net of income taxes	(645)	(9,182)
Net income (loss)	$ 10,627	$ (7,627)
Net income (loss) per common share:
Basic (in dollars per share)	$ 0.23	$ (0.16)
Diluted (in dollars per share)	$ 0.23	$ (0.16)
Weighted average shares outstanding:
Basic (in shares)	45,860,033	46,987,249
Diluted (in shares)	45,955,365	46,987,249