v3.26.1
PROPERTY AND EQUIPMENT, NET - Schedule of Depreciation Expense (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Property, Plant, and Equipment [Line Items]        
Depreciation $ 8,117 $ 3,881 $ 11,159 $ 8,506
Income Statement Location [Axis]: byon:TechnologyExpense        
Property, Plant, and Equipment [Line Items]        
Depreciation 4,223 3,787 7,176 8,250
Income Statement Location [Axis]: us-gaap:CostOfGoodsAndServicesSold        
Property, Plant, and Equipment [Line Items]        
Depreciation 0 16 0 89
Income Statement Location [Axis]: us-gaap:GeneralAndAdministrativeExpense        
Property, Plant, and Equipment [Line Items]        
Depreciation 3,056 78 3,145 167
Income Statement Location [Axis]: us-gaap:SellingAndMarketingExpense        
Property, Plant, and Equipment [Line Items]        
Depreciation $ 838 $ 0 $ 838 $ 0