Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies - Narrative (Details)

v3.23.3
Summary of Significant Accounting Policies - Narrative (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2023
Sep. 30, 2022
Sep. 30, 2023
Sep. 30, 2022
Dec. 31, 2022
Class of Stock [Line Items]          
Accumulated deficit $ 611,605   $ 611,605   $ 577,858
Cash and cash equivalents 86,094 $ 103,791 $ 86,094 $ 103,791 81,084
Customer complementary membership period     60 days    
Contractual liabilities 7,745   $ 7,745   10,878
Fulfillment cost 13,600 19,500 45,500 64,200  
Deferred Revenue          
Class of Stock [Line Items]          
Contractual liabilities 7,700   7,700   10,900
Contract with customer, liability, revenue recognized     10,600    
Other Current Liabilities          
Class of Stock [Line Items]          
Contractual liabilities 100   100   $ 200
Contract with customer, liability, revenue recognized     200    
Shipping and Handling          
Class of Stock [Line Items]          
Fulfillment cost 8,300 12,300 27,600 39,400  
Fulfillment Labor          
Class of Stock [Line Items]          
Fulfillment cost $ 3,000 $ 4,300 $ 10,400 $ 15,400  
Revenue Benchmark | Supplier Concentration Risk | Five Suppliers          
Class of Stock [Line Items]          
Concentration risk, percentage 40.00% 50.00% 40.00% 50.00%