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Acquisitions - Trust Advisory Group, Ltd. - Narrative (Details) - USD ($) $ in Millions	Sep. 20, 2024	Sep. 30, 2024	Sep. 30, 2023
Business Acquisition [Line Items]
Purchase price allocated to goodwill		$ 61.0	$ 59.3
Trust Advisory Group, Ltd
Business Acquisition [Line Items]
Purchase price	$ 1.5
Holdback amount	1.0
Fair value of contingent consideration, current	$ 1.7
Contingent consideration, liability term	90 days
Purchase price allocated to goodwill	$ 2.0
Purchase price allocated to intangible assets	$ 2.1

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