v3.21.2
Income Taxes - Summary of Reconciliation of the Statutory Federal Income Tax Rate to the Company's Effective Tax Rate (Detail) - Bird Rides [Member]
3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Dec. 31, 2020
Dec. 31, 2019
Federal statutory income tax rate         21.00% 21.00%
Stock-based compensation         (0.37%) (0.23%)
Valuation allowance         (22.93%) (21.56%)
Foreign Rate Differential         1.92% 0.75%
Cumulative Translation Adjustment         1.04 0.00
Other         (0.69%) (0.03%)
Effective income tax rate 0.05% 0.03% 0.07% 0.03% (0.03%) (0.07%)