Revenue - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Disaggregation of Revenue [Line Items]
Net revenue	$ 334,949	$ 391,148
Intercompany Eliminations
Disaggregation of Revenue [Line Items]
Net revenue	(27,632)	(39,284)
Brand Direct | Operating Segments
Disaggregation of Revenue [Line Items]
Net revenue	204,456	204,240
Marketplace | Operating Segments
Disaggregation of Revenue [Line Items]
Net revenue	149,782	216,385
Technology Solutions | Operating Segments
Disaggregation of Revenue [Line Items]
Net revenue	8,343	9,807
Customer acquisition
Disaggregation of Revenue [Line Items]
Net revenue	322,701	375,974
Customer acquisition | Intercompany Eliminations
Disaggregation of Revenue [Line Items]
Net revenue	(27,632)	(39,284)
Customer acquisition | Brand Direct | Operating Segments
Disaggregation of Revenue [Line Items]
Net revenue	200,551	198,873
Customer acquisition | Marketplace | Operating Segments
Disaggregation of Revenue [Line Items]
Net revenue	149,782	216,385
Customer acquisition | Technology Solutions | Operating Segments
Disaggregation of Revenue [Line Items]
Net revenue	0	0
Managed services
Disaggregation of Revenue [Line Items]
Net revenue	6,199	10,181
Managed services | Intercompany Eliminations
Disaggregation of Revenue [Line Items]
Net revenue	0	0
Managed services | Brand Direct | Operating Segments
Disaggregation of Revenue [Line Items]
Net revenue	3,905	5,367
Managed services | Marketplace | Operating Segments
Disaggregation of Revenue [Line Items]
Net revenue	0	0
Managed services | Technology Solutions | Operating Segments
Disaggregation of Revenue [Line Items]
Net revenue	2,294	4,814
Software services
Disaggregation of Revenue [Line Items]
Net revenue	6,049	4,993
Software services | Intercompany Eliminations
Disaggregation of Revenue [Line Items]
Net revenue	0	0
Software services | Brand Direct | Operating Segments
Disaggregation of Revenue [Line Items]
Net revenue	0	0
Software services | Marketplace | Operating Segments
Disaggregation of Revenue [Line Items]
Net revenue	0	0
Software services | Technology Solutions | Operating Segments
Disaggregation of Revenue [Line Items]
Net revenue	$ 6,049	$ 4,993