CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Income Statement [Abstract]
Revenue	$ 79,875,000	$ 97,522,000	$ 165,024,000	$ 205,183,000
Costs, expenses and other:
Cost of revenue	21,212,000	30,888,000	50,675,000	73,984,000
Sales and marketing	26,473,000	26,724,000	56,603,000	61,194,000
General and administrative	24,448,000	8,170,000	46,200,000	39,617,000
Product development	24,843,000	22,839,000	54,963,000	59,358,000
Impairment of goodwill	0	0	3,627,000	0
Impairment of intangibles and other assets	8,347,000	0	10,568,000	0
Restructuring costs	3,119,000	2,387,000	6,428,000	13,902,000
Gain on divestiture	558,000	0	558,000	(17,591,000)
Amortization of purchased intangible assets	674,000	876,000	1,565,000	1,750,000
Total costs, expenses and other	109,674,000	91,884,000	231,187,000	232,214,000
(Loss) income from operations	(29,799,000)	5,638,000	(66,163,000)	(27,031,000)
Other income (expense), net:
Interest (expense) income, net	(837,000)	136,000	495,000	1,937,000
Gain on debt extinguishment	73,083,000	1,151,000	73,083,000	7,200,000
Other income, net	606,000	3,742,000	369,000	12,355,000
Total other income	72,852,000	5,029,000	73,947,000	21,492,000
Income (loss) before provision for (benefit from) income taxes	43,053,000	10,667,000	7,784,000	(5,539,000)
Provision for (benefit from) income taxes	1,258,000	(155,000)	1,620,000	1,059,000
Net Income (loss)	$ 41,795,000	$ 10,822,000	$ 6,164,000	$ (6,598,000)
Net loss per share of common stock:
Basic (in dollars per share)	$ 0.47	$ 0.14	$ 0.07	$ (0.09)
Diluted (in dollars per share)	$ (0.33)	$ 0.12	$ (0.70)	$ (0.09)
Weighted average shares outstanding:
Basic (in shares)	88,708,514	76,902,416	88,396,816	76,341,729
Diluted (in shares)	94,978,234	91,500,059	94,973,001	76,341,729