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.

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Amount of increase (decrease) in the value of a contingent consideration liability, including, but not limited to, differences arising upon settlement.

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Amount of liability recognized arising from contingent consideration in a business combination.

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The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

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Additional payments to acquire businesses based on revenue growth.

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Represents the period of time over which contractual contingent payments are made as part of a business acquisition.

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Business acquisition contingent payment provisions period.

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Business combination cash based on revenue growth period.

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Business combination future aggregate earn out payments maximum.

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Contingent payment compensation expense.

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Contingent payment period one.

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Contingent payment period three.

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Contingent payment period two.

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Acquisitions - Additional Information (Details) - USD ($) $ in Thousands		1 Months Ended	3 Months Ended
	Nov. 01, 2021	Dec. 31, 2021	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Business Acquisition [Line Items]
Contingent consideration liability			$ 149,400		$ 217,200
Increase in contingent consideration liability related to change in value of consideration payable			12,200	$ 7,400
USAA AMCO
Business Acquisition [Line Items]
Increase in contingent consideration liability related to change in value of consideration payable				4,300
NEC Acquisition
Business Acquisition [Line Items]
Contingent consideration liability			14,600		13,700
Additional payments in cash to acquire business based on revenue growth	$ 35,000
Cash based on revenue growth period	6 years
Contingent payment period one	36 months
Contingent payment period two	48 months
Contingent payment period three	60 months
Contingent payment compensation expense			1,000	1,600
WestEnd Acquisition
Business Acquisition [Line Items]
Period of time over which contingent payments will be made		4 years
Contingent consideration liability			149,400		$ 217,200
Increase in contingent consideration liability related to change in value of consideration payable			12,200	$ 3,100
Payments to acquire business			$ 80,000
Period of time over which contingent "catch-up" provisions payments will be made		5 years 6 months
Maximum aggregate earn-out payments		$ 320,000
Maximum annual earn-out payments		$ 80,000