CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (UNAUDITED) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Income Statement [Abstract]
Revenue	$ 72,706	$ 64,984	$ 216,039	$ 177,067
Costs and expenses:
Partner Share and other third-party costs	37,563	34,090	112,996	93,814
Delivery costs	9,125	6,390	23,820	16,076
Sales and marketing expense	18,289	16,733	57,920	46,998
Research and development expense	13,762	11,141	39,634	26,293
General and administration expense	19,972	20,073	61,381	49,136
Acquisition and integration costs (benefit)	(1,867)	1,714	(4,269)	22,926
Change in fair value of contingent consideration	(46,126)	6,261	(114,144)	7,741
Goodwill impairment	0	0	83,149	0
Depreciation and amortization expense	10,468	8,375	30,695	20,273
Total costs and expenses	61,186	104,777	291,182	283,257
Operating Income (Loss), Total	11,520	(39,793)	(75,143)	(106,190)
Other expense:
Interest expense, net	(580)	(3,193)	(2,406)	(9,316)
Foreign currency loss	(4,673)	(1,543)	(10,882)	(1,224)
Total other expense	(5,253)	(4,736)	(13,288)	(10,540)
(Loss) income before income taxes	6,267	(44,529)	(88,431)	(116,730)
Income tax benefit	0	0	1,446	0
Net Income (Loss) Attributable to Parent, Total	6,267	(44,529)	(86,985)	(116,730)
Net Income (Loss) Available to Common Stockholders, Basic, Total	$ 6,267	$ (44,529)	$ (86,985)	$ (116,730)
Net loss per share attributable to common stockholders, basic (in USD per share)	$ 0.19	$ (1.35)	$ (2.60)	$ (3.67)
Net loss per share attributable to common stockholders, diluted (in USD per share)	$ 0.19	$ (1.35)	$ (2.60)	$ (3.67)
Weighted-average common shares outstanding, basic (in shares)	32,950,000	33,101,000	33,455,000	31,802,000
Weighted-average common shares outstanding, diluted (in shares)	33,269,000	33,101,000	33,455,000	31,802,000