v3.21.2
Property and Equipment, net - Summary of Property and Equipment, Net (Detail) - Bird Rides [Member] - USD ($)
$ in Thousands
Sep. 30, 2021
Dec. 31, 2020
Dec. 31, 2019
Schedule Of Property And Equipment, Net [Line Items]      
Less: Accumulated Depreciation   $ (4,600) $ (3,730)
Property and equipment, net $ 1,852 4,152 11,536
Computer Hardware, Software, And Equipment [Member]      
Schedule Of Property And Equipment, Net [Line Items]      
Property, plant and equipment, gross   5,009 6,612
Furniture and Fixtures [Member]      
Schedule Of Property And Equipment, Net [Line Items]      
Property, plant and equipment, gross   1,354 6,347
Leasehold Improvements [Member]      
Schedule Of Property And Equipment, Net [Line Items]      
Property, plant and equipment, gross   $ 2,389 $ 2,307