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Digital Assets - Additional Information (Detail) - Bitcoin | 9 Months Ended
--- | ---
Sep. 30, 2025 | Sep. 30, 2024
Digital Assets [Line Items] |  |
Number of bitcoins sold | 0 | 0

X
- Definition Digital assets. + References No definition available. + Details
Name: | mstr_DigitalAssetsLineItems
Namespace Prefix: | mstr_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of bitcoins sold. + References No definition available. + Details
Name: | mstr_NumberOfBitcoinsSold
Namespace Prefix: | mstr_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration