CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (LOSS) - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Income Statement [Abstract]
Revenue	$ 672,502	$ 984,992	$ 1,098,499
Costs and expenses:
Cost of revenue (exclusive of depreciation and amortization shown separately below)	38,758	57,769	57,297
Selling and marketing expense	433,588	702,238	773,990
General and administrative expense	117,700	152,383	153,472
Product development	47,197	55,553	52,865
Depreciation	19,070	20,095	17,910
Amortization of intangibles	7,694	25,306	42,738
Goodwill impairment	38,600	0	0
Change in fair value of contingent consideration	0	0	(8,249)
Restructuring and severance	10,118	4,428	53
Litigation settlements and contingencies	388	(18)	392
Total costs and expenses	713,113	1,017,754	1,090,468
Operating (loss) income	(40,611)	(32,762)	8,031
Other (expense) income, net:
Interest income (expense), net	21,685	(26,014)	(46,867)
Other (expense) income	(105,993)	3,843	123,272
(Loss) income before income taxes	(124,919)	(54,933)	84,436
Income tax benefit (expense)	2,515	(133,019)	(11,298)
Net (loss) income from continuing operations	(122,404)	(187,952)	73,138
Loss from discontinued operations, net of tax	0	0	(4,023)
Net (loss) income	(122,404)	(187,952)	69,115
Comprehensive (loss) income	$ (122,404)	$ (187,952)	$ 69,115
Weighted average shares outstanding:
Basic (in shares)	12,941	12,793	13,199
Diluted (in shares)	12,941	12,793	13,695
(Loss) income per share from continuing operations:
Basic (in dollars per share)	$ (9.46)	$ (14.69)	$ 5.54
Diluted (in dollars per share)	(9.46)	(14.69)	5.34
Loss per share from discontinued operations:
Basic (in dollars per share)	0	0	(0.30)
Diluted (in dollars per share)	0	0	(0.29)
Net (loss) income per share:
Basic (in dollars per share)	(9.46)	(14.69)	5.24
Diluted (in dollars per share)	$ (9.46)	$ (14.69)	$ 5.05