Employee Benefit Plan	12 Months Ended
Dec. 31, 2021
Compensation And Retirement Disclosure [Abstract]
Employee Benefit Plan	(15) Employee Benefit Plan The Company sponsors a benefit plan to provide retirement benefits for its employees, known as the MicroStrategy 401(k) Savings Plan (the “401(k) Plan”). Participants may make voluntary contributions to the 401(k) Plan of up to 50% of their annual base pre-tax compensation, cash bonuses, and commissions not to exceed the federally determined maximum allowable contribution amounts. Participants may designate all or a portion of the 401(k) Plan elective deferral contributions as Roth elective deferral contributions instead of pre-tax elective deferral contributions. The 401(k) Plan permits for discretionary Company contributions. The Company makes a matching contribution to each 401(k) Plan participant in the amount of 50% of the first 12% of a participant’s contributions, up to a maximum of $5,000 per year. Further, all active participants become fully vested in the Company’s matching contributions after completing four years of employment, vesting in increments based on the participant’s years of employment with the Company. The Company made contributions to the 401(k) Plan totaling $2.9 million, $3.3 million, and $4.1 million during the years ended December 31, 2021, 2020, and 2019, respectively.

The entire disclosure for an entity's employee compensation and benefit plans, including, but not limited to, postemployment and postretirement benefit plans, defined benefit pension plans, defined contribution plans, non-qualified and supplemental benefit plans, deferred compensation, share-based compensation, life insurance, severance, health care, unemployment and other benefit plans.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-URI http://asc.fasb.org/topic&trid=2228938

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 712
-URI http://asc.fasb.org/topic&trid=2197446

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-URI http://asc.fasb.org/topic&trid=2235017

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