Stock-Based Compensation - Additional Information (Details) $ in Thousands	Sep. 30, 2021 USD ($) plan shares	Dec. 31, 2020 USD ($) shares
Share-based Compensation
Number of equity based compensation plan \| plan	5
Other accrued liabilities	$ 6,115	$ 5,821
Cash Settled Awards
Share-based Compensation
Outstanding shares \| shares	32,085	30,009
Other accrued liabilities	$ 276	$ 396

Amount of expenses incurred but not yet paid classified as other, due within one year or the normal operating cycle, if longer.

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