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Stockholders' Equity - Repurchase of Common Stock (Details) - USD ($) $ / shares in Units, $ in Millions | 3 Months Ended | 9 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | ---
Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2022 | Sep. 30, 2021 | Aug. 02, 2021 | May 31, 2018 | Mar. 31, 2017 | Jul. 31, 2015
Equity, Class of Treasury Stock [Line Items] |  |  |  |  |  |  |  |
Stock repurchase program, authorized amount |  |  |  |  | $ 1,000.0 |  | $ 1,500.0 | $ 1,500.0
Stock repurchase program, remaining authorizations | $ 616.4 |  | $ 616.4 |  |  |  |  |
Number of shares repurchased (in shares) | 614,190 | 527,058 | 4,527,887 | 6,585,112 |  |  |  |
Value of shares repurchased | $ 30.0 | $ 29.9 | $ 280.1 | $ 327.7 |  |  |  |
Shares acquired, average price per share (in usd per share) | $ 48.81 | $ 56.75 | $ 61.86 | $ 49.77 |  |  |  |
Common Stock |  |  |  |  |  |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |  |  |  |  |  |
Number of shares repurchased (in shares) |  |  |  | 35,100 |  |  |  |
Value of shares repurchased |  |  |  | $ 1.6 |  |  |  |
New Share Repurchase Program |  |  |  |  |  |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |  |  |  |  |  |
Stock repurchase program, authorized amount |  |  |  |  |  | $ 1,000.0 |  |

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