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Share Repurchases - Additional Information (Details) - USD ($) $ in Millions	1 Months Ended	12 Months Ended
	Nov. 30, 2023	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Oct. 28, 2021
Accelerated Share Repurchases [Line Items]
Payment for share repurchase		$ 0.0	$ 300.1	$ 0.0
Stock repurchase program remaining authorized repurchase amount					$ 1,000.0
Commercial Bank
Accelerated Share Repurchases [Line Items]
Stock repurchase program remaining authorized repurchase amount		$ 658.9
Evergreen Program
Accelerated Share Repurchases [Line Items]
Payment for share repurchase	$ 229.3
Repurchase Program
Accelerated Share Repurchases [Line Items]
Open market share repurchase	3,300,000
Open market share repurchase amount	$ 300.1
Payment for share repurchase	$ 70.8

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The cash outflow to reacquire common stock during the period.

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Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

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