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Earnings Per Share - Share-based Compensation (Details) - shares | 3 Months Ended
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Mar. 31, 2021 | Mar. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Total exercised or released (in shares) | 1,649,778 | 615,599
Options |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Options exercised (in shares) | 656,368 | 0
Restricted Stock Units |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Options exercised (in shares) | 701,757 | 340,883
Performance Share Units |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Options exercised (in shares) | 291,653 | 274,716

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