Goodwill and Intangible Assets - Summary of Activity in Carrying Value of Goodwill by Reporting Unit (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2022 USD ($)
Goodwill [Line Items]
Beginning Balance	$ 158,817
Acquisition	42,886
Goodwill impairment charge	(201,703)
Ending Balance	0
Ecommerce
Goodwill [Line Items]
Beginning Balance	152,876
Acquisition	42,886
Goodwill impairment charge	(195,762)
Ending Balance	0
Wholesale
Goodwill [Line Items]
Beginning Balance	1,720
Acquisition	0
Goodwill impairment charge	(1,720)
Ending Balance	0
TDA
Goodwill [Line Items]
Beginning Balance	4,221
Acquisition	0
Goodwill impairment charge	(4,221)
Ending Balance	$ 0