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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