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Share Repurchases - Additional Information (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions | 3 Months Ended | 6 Months Ended | 9 Months Ended |
--- | --- | --- | --- | ---
Sep. 30, 2025 | Jun. 30, 2025 | Sep. 30, 2025 | Sep. 30, 2024 | Oct. 28, 2021
Accelerated Share Repurchases [Line Items] |  |  |  |  |
Open market share repurchase |  |  | 3.2 |  |
Open market share repurchase amount |  |  | $ 300.0 |  |
Payment for share repurchase |  |  | $ 600.0 | $ 0.0 |
Stock repurchase program remaining authorized repurchase amount |  |  |  |  | $ 1,000.0
Shares Issued Price Per Share | $ 92.81 |  | $ 92.81 |  |
Commercial Bank |  |  |  |  |
Accelerated Share Repurchases [Line Items] |  |  |  |  |
Stock repurchase program remaining authorized repurchase amount |  | $ 528.9 |  |  |
Evergreen Program |  |  |  |  |
Accelerated Share Repurchases [Line Items] |  |  |  |  |
Stock repurchase program, authorized amount | $ 170.0 |  | $ 170.0 |  |
Share Repurchase Program |  |  |  |  |
Accelerated Share Repurchases [Line Items] |  |  |  |  |
Stock repurchase program, authorized amount | $ 130.0 |  | $ 130.0 |  |
Stock repurchased during period, shares | 0.3 | 2.8 | 3.1 |  |
Payment for share repurchase |  | $ 300.0 |  |  |
Shares Issued Price Per Share | $ 95.71 |  | $ 95.71 |  |

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- Definition Amount authorized for purchase of share under share repurchase plan. Includes, but is not limited to, repurchase of stock and unit of ownership. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 505 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481520/505-30-50-4 + Details
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