Defined Contribution Plans (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Retirement Benefits [Abstract]
Employer matching contribution, percent of employees' gross pay (as a percent)			100.00%
Maximum annual contributions per employee (as a percent)			3.00%
Employer matching contribution, percent of match (as a percent)			50.00%
Maximum additional contribution upon employee (as a percent)			2.00%
Additional maximum contribution per employee (as a percent)			4.00%
Amount of matching contributions	$ 1.4	$ 1.1	$ 4.5	$ 3.7

Defined Contribution Plan, Additional Maximum Annual Contributions Per Employee, Percent

No definition available.

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Defined Contribution Plan, Employer Matching Additional Contribution Upon Employee, Percent

No definition available.

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No definition available.

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Amount of discretionary contributions made by an employer to a defined contribution plan.

No definition available.

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Percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan.

No definition available.

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Percentage employer matches of the employee's percentage contribution matched.

No definition available.

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Maximum percentage of employee gross pay the employee may contribute to a defined contribution plan.

No definition available.

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