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Stock-Based Compensation - Key Components of Outperformance Plan (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
2020 PSU Plan | Operational Performance Unit
Share-based Compensation Arrangement by Share-based Payment Award
Maximum bonus pool	$ 6.7	$ 14.9
2020 PSU Plan | Relative TSR Performance Unit
Share-based Compensation Arrangement by Share-based Payment Award
Maximum bonus pool	6.7	$ 14.9
Outperformance Program
Share-based Compensation Arrangement by Share-based Payment Award
Maximum bonus pool	$ 28.0

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- Definition

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