Stock-based Compensation - Summary Of Restricted Stock Option Activity (Parenthetical) (Detail) - 2017 Amended Equity Incentive Plan [Member] - Bird Rides [Member] - shares shares in Millions |
12 Months Ended | |
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Dec. 31, 2020 |
Dec. 31, 2019 |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||
| Restricted stock awards granted not subject to immediate vesting requirements | 4.8 | 7.2 |
| Restricted stock units [Member] | ||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||
| Share based compensation by share based award vesting period | 48 months | 48 months |
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- Definition Restricted stock awards granted not subject to immediate vesting requirements. No definition available.
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- Definition Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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