Employee Benefit Plan	12 Months Ended
Dec. 31, 2020
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 currently 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. Prior to 2019, the Company made matching contributions in the amount of 50% of the first 6% of a participant’s contributions, up to a maximum of $3,000 per year, and participants became fully vested in the Company’s matching contributions after completing six 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 $3.3 million, $4.1 million, and $2.4 million during the years ended December 31, 2020, 2019, and 2018, respectively.

Employee Benefit Plan

12 Months Ended

Dec. 31, 2020

Compensation And Retirement Disclosure [Abstract]

(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 currently 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. Prior to 2019, the Company made matching contributions in the amount of 50% of the first 6% of a participant’s contributions, up to a maximum of $3,000 per year, and participants became fully vested in the Company’s matching contributions after completing six 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 $3.3 million, $4.1 million, and $2.4 million during the years ended December 31, 2020, 2019, and 2018, respectively.