Stock-based Compensation	3 Months Ended
Mar. 31, 2022
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Stock-based Compensation	Note 6 – Stock-based Compensation We granted restricted stock units (“RSUs”) in July 2019 to certain members of management, pursuant to retention agreements entered into with these employees (the “IPO Grants”). These RSUs vest upon satisfaction of both a performance-based vesting condition (the “IPO Condition”), which was satisfied when we completed our IPO on February 4, 2020, and a service-based vesting condition, which will be satisfied with respect to one-third of an employee’s RSUs on each anniversary from the date of our IPO for three consecutive years, subject to the employee’s continued employment through the applicable vesting date. Additionally, we established an equity incentive plan for purposes of granting stock-based compensation awards to certain members of our senior management, our non-executive directors and to certain employees, to incentivize their performance and align their interests with ours. We have granted RSUs to certain employees and non-employee directors that have a service-based vesting condition. In addition, we have granted performance stock units (“PSUs”) to certain members of management that have a performance-based vesting condition. We account for forfeitures of outstanding but unvested grants in the period they occur. A maximum of 10.5 million shares of common stock were initially available for issuance under equity incentive awards granted pursuant to the plan. In the three months ended March 31, 2022, 0.2 million RSUs and 0.2 million PSUs were granted, respectively. As of March 31, 2022, there were stock-based compensation awards representing 0.7 million shares outstanding compared to 0.4 million shares outstanding as of December 31, 2021. For each of the three months ended March 31, 2022 and 2021, stock-based compensation expense was $2 million.

Stock-based Compensation

3 Months Ended

Mar. 31, 2022

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Note 6 – Stock-based Compensation

We granted restricted stock units (“RSUs”) in July 2019 to certain members of management, pursuant to retention agreements entered into with these employees (the “IPO Grants”). These RSUs vest upon satisfaction of both a performance-based vesting condition (the “IPO Condition”), which was satisfied when we completed our IPO on February 4, 2020, and a service-based vesting condition, which will be satisfied with respect to one-third of an employee’s RSUs on each anniversary from the date of our IPO for three consecutive years, subject to the employee’s continued employment through the applicable vesting date.

Additionally, we established an equity incentive plan for purposes of granting stock-based compensation awards to certain members of our senior management, our non-executive directors and to certain employees, to incentivize their performance and align their interests with ours. We have granted RSUs to certain employees and non-employee directors that have a service-based vesting condition. In addition, we have granted performance stock units (“PSUs”) to certain members of management that have a performance-based vesting condition. We account for forfeitures of outstanding but unvested grants in the period they occur. A maximum of 10.5 million shares of common stock were initially available for issuance under equity incentive awards granted pursuant to the plan. In the three months ended March 31, 2022, 0.2 million RSUs and 0.2 million PSUs were granted, respectively.

As of March 31, 2022, there were stock-based compensation awards representing 0.7 million shares outstanding compared to 0.4 million shares outstanding as of December 31, 2021. For each of the three months ended March 31, 2022 and 2021, stock-based compensation expense was $2 million.