v3.21.2
Segment Information - Summary Of Reportable Segments Based On The Geographic Areas (Detail) - Reportable Geographical Components [Member] - Bird Rides [Member]
9 Months Ended 12 Months Ended
Sep. 30, 2021
Dec. 31, 2020
North America (NA) [Member]    
Segment Reporting Disclosure Of Entitys Reportable Segments [Line Items]    
Description Includes Canada and the United States Includes Canada and the United States
Europe, Middle East & Africa (EMEA) [Member]    
Segment Reporting Disclosure Of Entitys Reportable Segments [Line Items]    
Description Includes all countries within the Europeon Union, the United Kingdom and countries within the Middle East Includes all countries within the EU, UK, and countries within the Middle East
Other [Member]    
Segment Reporting Disclosure Of Entitys Reportable Segments [Line Items]    
Description Includes South America, China, Mexico, Australia, New Zealand Includes South America, China, Mexico, Australia, New Zealand