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v3.21.4

Consolidated Balance Sheets Details - Other Current Assets (Details) | 9 Months Ended | 12 Months Ended
--- | --- | ---
Nov. 30, 2021 | Feb. 28, 2021
Condensed Balance Sheet Statements, Captions [Line Items] |  |
Other current assets greater than five percent of current assets | none | none
Other Long-Term Assets Greater than Five Percent of Total Assets | none | none

X
- Definition Other Current Assets Greater than Five Percent of Current Assets + References No definition available. + Details
Name: | bbry_OtherCurrentAssetsGreaterthanfivepercentofCurrentAssets
Namespace Prefix: | bbry_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Other Long-Term Assets Greater than Five Percent of Total Assets + References No definition available. + Details
Name: | bbry_OtherLongTermAssetsGreaterThanFivePercentOfTotalAssets
Namespace Prefix: | bbry_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | srt_CondensedBalanceSheetStatementsCaptionsLineItems
Namespace Prefix: | srt_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration