Goodwill and Intangible Assets - Goodwill (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Jun. 30, 2023	Dec. 31, 2023	Dec. 31, 2022
Goodwill [Roll Forward]
Goodwill, beginning balance		$ 77,238	$ 76,558
Additions		5,001	735
Impairment of goodwill		(49,390)	0
Miscellaneous changes			(55)
Goodwill, ending balance		32,849	77,238
Brand Direct | Operating Segments
Goodwill [Roll Forward]
Goodwill, beginning balance		18,321	18,376
Additions		2,308	0
Impairment of goodwill		(15,595)
Miscellaneous changes			(55)
Goodwill, ending balance		5,034	18,321
Marketplace | Operating Segments
Goodwill [Roll Forward]
Goodwill, beginning balance		54,554	54,554
Additions		2,693	0
Impairment of goodwill	$ (33,800)	(33,795)
Miscellaneous changes			0
Goodwill, ending balance		23,452	54,554
Technology Solutions | Operating Segments
Goodwill [Roll Forward]
Goodwill, beginning balance		4,363	3,628
Additions		0	735
Impairment of goodwill		0
Miscellaneous changes			0
Goodwill, ending balance		$ 4,363	$ 4,363