Stock-Based Compensation - Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
Mar. 31, 2022	Mar. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Proceeds from stock issued in connection with the employee stock purchase plan	$ 8,882	$ 8,046
Employee stock purchase plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares available for grant (in shares)	7,700,000
Estimated remaining weighted average period	10 months 24 days
Unrecognized stock-based compensation expense	$ 10,100
Common stock purchased (in shares)	255,697
Share price (in usd per share)	$ 34.73
Employee contributions	$ 2,000
RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized stock-based compensation expense, unvested RSUs or PSUs	$ 311,100
Estimated remaining weighted average period	3 years 2 months 12 days
Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Estimated remaining weighted average period	2 months 12 days
Unrecognized stock-based compensation expense, outstanding stock options	$ 1,000
PSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized stock-based compensation expense, unvested RSUs or PSUs	$ 9,100
Estimated remaining weighted average period	3 years 10 months 24 days
Vesting period	4 years
2018 Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares available for grant (in shares)	22,000,000

Total of the carrying values as of the balance sheet date of obligations incurred through that date and payable for obligations related to services received from employees, such as accrued salaries and bonuses, payroll taxes and fringe benefits.

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Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

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Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Price of a single share of a number of saleable stocks of a company.

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