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Stock-Based Compensation - Additional Information (Details) $ in Thousands	Mar. 31, 2021 USD ($) plan shares	Dec. 31, 2020 USD ($) shares
Share-based Compensation
Number of equity based compensation plan | plan	5
Other accrued liabilities	$ 7,239	$ 5,821
Cash Settled Awards
Share-based Compensation
Outstanding shares | shares	29,824	30,009
Other accrued liabilities	$ 177	$ 396

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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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Number of equity instruments other than options outstanding, including both vested and non-vested instruments.

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