General form of registration statement for all companies including face-amount certificate companies

Stock-Based Compensation Expense - Additional information (Detail)

v3.22.1
Stock-Based Compensation Expense - Additional information (Detail)
$ / shares in Units, $ in Millions
 1 Months Ended 3 Months Ended 12 Months Ended
Jan. 01, 2022
shares
Dec. 31, 2021
USD ($)
Day
$ / shares
Nov. 04, 2021
shares
Apr. 30, 2022
Mar. 31, 2022
USD ($)
Day
$ / shares
shares
Mar. 31, 2021
shares
Dec. 31, 2021
USD ($)
Day
$ / shares
shares
Dec. 31, 2020
$ / shares
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]                
Share based compensation arrangement by share based payment award, Award vesting period   4 years            
Share based compensation arrangement by share based payment award, Options, Grants in period, Gross | shares         0 100,000    
Expected term             5 years 10 months 28 days 5 years 11 months 1 day
Risk-free interest rate             1.70% 0.70%
Share-based compensation arrangement by share-based payment award fair value assumptions, expected volatility rate             50.80% 46.10%
Expected dividend yield             0.00% 0.00%
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount | $   $ 291.4         $ 291.4  
Two Thousand And Seventeen Equity Incentive Plan [Member] | Bird Rides [Member]                
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]                
Share based compensation arrangement by share based payment award, Award vesting period         4 years   4 years  
Share based compensation arrangement by share based payment award, Number of vesting schedules | Day         2   2  
BRDSTwo Thousand And Twenty One Equity Incentive Plan                
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]                
Share based compensation arrangement by share based payment award, Number of vesting schedules | Day   2            
Number of common shares reserved for future issuance | shares     59,500,730          
Number of common shares reserved for future issuance additions | shares 13,732,005   17,820,688          
Share based compensation arrangement By share based payment award cumulative annual increase percentage     5.00%          
BRDSTwo Thousand And Twenty One Equity Incentive Plan | Subsequent Event [Member]                
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]                
Share based compensation arrangement by share based payment award, Award vesting period       1 year        
Share based compensation arrangement by share based payment award, Vesting basis       quarterly        
One Vesting Schedule [Member]                
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]                
Share based compensation arrangement by share based payment award, Award vesting period   3 years            
One Vesting Schedule [Member] | Two Thousand And Seventeen Equity Incentive Plan [Member] | Maximum [Member]                
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]                
Share based compensation arrangement by share based payment award, Vesting basis         monthly   quarterly  
One Vesting Schedule [Member] | Two Thousand And Seventeen Equity Incentive Plan [Member] | Minimum [Member]                
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]                
Share based compensation arrangement by share based payment award, Vesting basis         quarterly   monthly  
One Vesting Schedule [Member] | Two Thousand And Seventeen Equity Incentive Plan [Member] | Bird Rides [Member]                
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]                
Share based compensation arrangement by share based payment award, Award vesting period         3 years   3 years  
Share based compensation arrangement by share based payment award, Award vesting period, Period of cliff vest         1 year   1 year  
One Vesting Schedule [Member] | BRDSTwo Thousand And Twenty One Equity Incentive Plan                
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]                
Share based compensation arrangement by share based payment award, Award vesting period, Period of cliff vest   1 year            
Share based compensation arrangement by share based payment award, Vesting basis   quarterly            
Second Vesting Schedule [Member]                
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]                
Share based compensation arrangement by share based payment award, Award vesting period   4 years            
Second Vesting Schedule [Member] | Two Thousand And Seventeen Equity Incentive Plan [Member] | Bird Rides [Member]                
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]                
Share based compensation arrangement by share based payment award, Award vesting period         4 years   4 years  
Second Vesting Schedule [Member] | BRDSTwo Thousand And Twenty One Equity Incentive Plan                
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]                
Share based compensation arrangement by share based payment award, Vesting basis   quarterly            
Share-based Payment Arrangement, Option [Member] | Share Based Payment Arrangement Employee                
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]                
weighted-average fair value of stock options granted | $ / shares             $ 6.97 $ 0.46
Restricted Stock Units (RSUs) [Member]                
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]                
Equity Instruments Other than Options, Grants in Period | shares         4,600,000 0 53,900,000  
Management Award R S U [Member]                
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]                
Equity Instruments Other than Options, Grants in Period | shares         29,100,000   29,100,000  
Unrecognized stock-based compensation expense restricted stock units | $   $ 176.3     $ 176.3   $ 176.3  
Share-based compensation arrangement by share-based payment award fair value assumptions, share price | $ / shares   $ 8.34         $ 8.34  
Risk-free interest rate             1.10%  
Share-based compensation arrangement by share-based payment award fair value assumptions, expected volatility rate             60.00%  
Expected dividend yield             0.00%  
Share-based payment arrangement, expense | $         $ 26.0   $ 47.5  
Management Award R S U [Member] | Share-based Payment Arrangement, Tranche One [Member]                
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]                
Share Price | $ / shares   12.5     $ 12.5   $ 12.5  
Management Award R S U [Member] | Share-based Payment Arrangement, Tranche Two [Member]                
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]                
Share Price | $ / shares   20     20   20  
Management Award R S U [Member] | Share-based Payment Arrangement, Tranche Three [Member]                
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]                
Share Price | $ / shares   $ 30     $ 30   $ 30  
Management Award R S U [Member] | Maximum [Member]                
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]                
Expected term             16 days  
Management Award R S U [Member] | Minimum [Member]                
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]                
Expected term             3 days 21 hours