CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (UNAUDITED) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Income Statement [Abstract]
Revenues	$ 52,031	$ 67,057	$ 177,178	$ 204,301
Costs and Expenses [Abstract]
Partner Share and other third-party costs	22,001	30,675	78,554	94,476
Delivery costs	5,730	7,830	19,901	21,664
Sales and marketing expense	7,865	13,163	31,954	41,306
Research and development expense	8,799	13,194	31,800	39,712
General and administrative expense	10,854	12,076	37,537	42,712
Acquisition, integration and divestiture costs	0	0	0	162
Change in contingent consideration	0	100	102	110
Impairment of goodwill and intangible assets	58,843	131,595	58,843	131,595
Loss (gain) on disposal or divestiture	320	0	(4,831)	0
Depreciation and amortization expense	6,473	6,970	19,039	19,749
Total costs and expenses	120,885	215,603	272,899	391,486
Operating Loss	(68,854)	(148,546)	(95,721)	(187,185)
Other (expense) income:
Interest expense, net	(2,007)	(1,479)	(5,780)	(3,859)
Foreign currency (loss) gain	(1,812)	4,843	6,263	4,312
Gain on debt extinguishment	0	0	0	13,017
Total other (expense) income	(3,819)	3,364	483	13,470
Loss before income taxes	(72,673)	(145,182)	(95,238)	(173,715)
Net Income (Loss) Attributable to Parent, Total	$ (72,673)	$ (145,182)	$ (95,238)	$ (173,715)
Net loss per share attributable to common stockholders, basic (in USD per share)	$ (1.36)	$ (2.90)	$ (1.81)	$ (3.66)
Net loss per share attributable to common stockholders, diluted (in USD per share)	$ (1.36)	$ (2.90)	$ (1.81)	$ (3.66)
Weighted-average common shares outstanding, basic (in shares)	53,493,000	50,028,000	52,708,000	47,469,000
Weighted-average common shares outstanding, diluted (in shares)	53,493,000	50,028,000	52,708,000	47,469,000