v3.21.2
Acquisitions - Summary of Recognized Identified Assets Acquired and Liabilities Assumed (Detail) - Bird Rides [Member] - USD ($)
$ in Thousands
9 Months Ended 12 Months Ended
Sep. 30, 2021
Dec. 31, 2020
Dec. 31, 2019
Business Acquisition [Line Items]      
Goodwill $ 124,059 $ 131,255 $ 1,296
CIRC [Member]      
Business Acquisition [Line Items]      
Current assets 68,667 68,667  
Vehicles 140 140  
Net liabilities assumed (975) (975)  
Total assets acquired, net 73,291 73,291  
Total purchase price 190,000 190,000  
Goodwill 116,709 116,709  
CIRC [Member] | Customer relationships [Member]      
Business Acquisition [Line Items]      
Intangible 1,621 1,621  
CIRC [Member] | Government relationships [Member]      
Business Acquisition [Line Items]      
Intangible $ 3,838 $ 3,838