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Stockholders' Equity (Details) | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Dec. 31, 2019 USD ($) $ / shares shares | Dec. 31, 2020 USD ($) vote $ / shares shares | Dec. 31, 2019 USD ($) $ / shares shares | Dec. 31, 2018 USD ($) shares | Feb. 19, 2021 USD ($)
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |
Common stock shares authorized (in shares) | shares | 300,000,000.0 | 300,000,000.0 | 300,000,000.0 |  |
Common stock par or stated value (in dollars per share) | $ / shares | $ 0.01 | $ 0.01 | $ 0.01 |  |
Preferred stock authorized shares (in shares) | shares |  | 10,000,000.0 |  |  |
Preferred stock par or stated value (in dollars per share) | $ / shares |  | $ 0.01 |  |  |
Common stock, voting rights per share held | vote |  | 1 |  |  |
Remaining authorized repurchase amount |  | $ 201,600,000 |  |  |
Treasury stock repurchased (in shares) | shares |  | 6,500,000 | 1,300,000 | 0 |
Treasury stock repurchased |  | $ 285,900,000 | $ 102,300,000 |  |
Charitable stock donation | $ 8,900,000 | 0 | 8,900,000 | $ 0 |
Charitable stock donation (in shares) | shares | (100,000) |  |  |  |
Subsequent Event |  |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |
Authorized amount of stock to be repurchased |  |  |  |  | $ 400,000,000.0
Performance-based Restricted Stock Units |  |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |
Treasury stock repurchased |  | $ 45,900,000 | $ 3,400,000 | $ 4,600,000 |

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