Employee benefit plan
 3 Months Ended
Mar. 31, 2022
Retirement Benefits [Abstract]  
Employee benefit plan Employee benefit planThe Company sponsors a defined contribution 401(k) plan for its employees (the “Retirement Savings Plan”). The Retirement Savings Plan is a voluntary contributory plan under which employees may elect to defer compensation for federal income tax purposes under Section 401(k) of the Internal Revenue Code of 1986. All full-time employees age 18+ are eligible to enroll in the plan on their first day of employment. Company matching contributions begin upon employee enrollment in the Retirement Savings Plan. Prior to January 1, 2022, the Company provided an employer match up to 50% of the first 6% of elective contributions, and there were no matching contributions in excess of 3% of compensation. Effective January 1, 2022, the Company provides an employer match up to 100% on the first 1% of elective contributions and 50% on the next 5% of elective contributions. The maximum matching contribution is 3.5% of compensation.For the three months ended March 31, 2022 and 2021, the Company made contributions for the benefit of employees of $1.2 million and $0.7 million, respectively, to the Retirement Savings Plan.