Employee 401(k) Savings Plan	12 Months Ended
	Dec. 31, 2021
Retirement Benefits [Abstract]
Employee 401(k) Savings Plan	Employee 401(k) Savings PlanWe sponsor a 401(k) defined contribution retirement savings plan that covers all U.S. employees who have met minimum age and service requirements subject to the provisions of the Employee Retirement Income Security Act. Under the plan, eligible employees may contribute a portion of their annual compensation into the plan up to the IRS annual limits on a pre-tax or after-tax basis. We have elected to make matching contributions to the plan based on a percentage of employee contributions. The total amount contributed by us is determined by plan provisions for matching contributions, as well as at our discretion. Employer matching and discretionary contributions were $1,151, $1,097 and $993 for the years ended December 31, 2021, 2020 and 2019, respectively.