Period over which an employee's award vests.

No definition available.

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- Definition

Maximum amount of estimate for undiscounted range of outcomes in contingent consideration arrangement in business combination.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Definition

Aggregate carrying value as of the balance sheet date of the liabilities for all deferred compensation arrangements. Represents currently earned compensation under compensation arrangements that is not actually paid until a later date.

+ References

No definition available.

+ Details

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- Definition

Carrying amount as of the balance sheet date of assets held under deferred compensation agreements.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition

Amount of cash outflow, not made soon after acquisition date of business combination, to settle contingent consideration liability exceeding amount recognized at acquisition date. Includes, but is not limited to, measurement period adjustment and less amount paid soon after acquisition date.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Compensation Plans - Deferred Compensation Plans (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended	12 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Dec. 31, 2024	Dec. 31, 2025	Aug. 23, 2024	Feb. 04, 2022
Aviditi Advisors \| Net revenue target
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits
Maximum amount of contingent consideration						$ 86.3
Cornerstone Macro \| Net revenue target
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits
Maximum amount of contingent consideration							$ 27.8
Cornerstone Macro \| Net revenue target \| No service requirement
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits
Maximum amount of contingent consideration							$ 6.0
Amount paid related to contingent consideration liability				$ 6.0
Cornerstone Macro \| Net revenue target \| Service requirement
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits
Amount paid related to contingent consideration liability			$ 5.0
Cornerstone Macro \| Net revenue target \| Service requirement \| Second Quarter 2026
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits
Amount paid related to contingent consideration liability	$ 2.4
Cornerstone Macro \| Net revenue target \| Service requirement \| Second Quarter 2025
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits
Amount paid related to contingent consideration liability		$ 2.6
Annual MFRS Awards \| Minimum
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits
Award Vesting Period			3 years
Annual MFRS Awards \| Maximum
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits
Award Vesting Period			4 years
Retention MFRS Awards \| Minimum
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits
Award Vesting Period			3 years
Retention MFRS Awards \| Maximum
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits
Award Vesting Period			5 years
Nonqualified Deferred Compensation Plan
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits
Plan Liabilities	20.3		$ 20.3		$ 19.3
Nonqualified Deferred Compensation Plan \| Level I
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits
Plan Assets	$ 20.3		$ 20.3		$ 19.3