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Business Combinations - Summary of Estimated Fair Values of Net Assets Acquired (Detail) $ in Millions | Mar. 31, 2025 USD ($)
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Business Acquisition Actual Revenue And Pre Tax Income Loss [Line Items] |
Cash and cash equivalents | $ 20.8
Fiduciary assets | 117.9
Other current assets | 27.0
Fixed assets | 2.9
Noncurrent assets | 4.2
Goodwill | 258.0
Expiration lists | 200.8
Non-compete agreements | 16.9
Total assets acquired | 648.5
Fiduciary liabilities | 117.9
Current liabilities | 25.4
Noncurrent liabilities | 66.9
Total liabilities assumed | 210.2
Total net assets acquired | 438.3
W K Webster & Co Ltd [Member] |
Business Acquisition Actual Revenue And Pre Tax Income Loss [Line Items] |
Cash and cash equivalents | 5.3
Fiduciary assets | 86.8
Other current assets | 16.7
Fixed assets | 1.1
Noncurrent assets | 2.2
Goodwill | 83.7
Expiration lists | 70.9
Non-compete agreements | 7.9
Total assets acquired | 274.6
Fiduciary liabilities | 86.8
Current liabilities | 11.8
Noncurrent liabilities | 21.8
Total liabilities assumed | 120.4
Total net assets acquired | 154.2
Case Group [Member] |
Business Acquisition Actual Revenue And Pre Tax Income Loss [Line Items] |
Cash and cash equivalents | 5.6
Fiduciary assets | 0.0
Other current assets | 4.0
Fixed assets | 1.0
Goodwill | 49.5
Expiration lists | 36.2
Non-compete agreements | 7.3
Total assets acquired | 103.6
Fiduciary liabilities | 0.0
Current liabilities | 7.3
Noncurrent liabilities | 13.5
Total liabilities assumed | 20.8
Total net assets acquired | 82.8
Nine Other Acquisitions [Member] |
Business Acquisition Actual Revenue And Pre Tax Income Loss [Line Items] |
Cash and cash equivalents | 9.9
Fiduciary assets | 31.1
Other current assets | 6.3
Fixed assets | 0.8
Noncurrent assets | 2.0
Goodwill | 124.8
Expiration lists | 93.7
Non-compete agreements | 1.7
Total assets acquired | 270.3
Fiduciary liabilities | 31.1
Current liabilities | 6.3
Noncurrent liabilities | 31.6
Total liabilities assumed | 69.0
Total net assets acquired | $ 201.3

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