Fair Value Measurements - Schedule of Changes in Assets and Liabilities Measured at Fair Value on Recurring Basis (Details) - USD ($) $ in Thousands	Jun. 30, 2025	Dec. 31, 2024
Assets
Cash equivalents	$ 137,523	$ 225,736
Investment securities - fair value
Fair value	82,894	83,771
Debt securities	2,346	1,456
Total assets measured at fair value	239,229	324,666
Liabilities
Total liabilities measured at fair value	20,000	36,100
Contingent consideration
Liabilities
Total liabilities measured at fair value	20,000	36,100
Sponsored funds
Investment securities - fair value
Fair value	59,489	63,296
Equity securities
Investment securities - fair value
Fair value	21,059	19,019
Nonqualified retirement plan assets
Investment securities - fair value
Nonqualified retirement plan assets	18,812	15,159
Level 1
Assets
Cash equivalents	137,523	225,736
Investment securities - fair value
Debt securities	0	0
Total assets measured at fair value	236,883	323,210
Liabilities
Total liabilities measured at fair value	0	0
Level 1 \| Contingent consideration
Liabilities
Total liabilities measured at fair value	0	0
Level 1 \| Sponsored funds
Investment securities - fair value
Fair value	59,489	63,296
Level 1 \| Equity securities
Investment securities - fair value
Fair value	21,059	19,019
Level 1 \| Nonqualified retirement plan assets
Investment securities - fair value
Nonqualified retirement plan assets	18,812	15,159
Level 2
Assets
Cash equivalents	0	0
Investment securities - fair value
Debt securities	2,346	1,456
Total assets measured at fair value	2,346	1,456
Liabilities
Total liabilities measured at fair value	0	0
Level 2 \| Contingent consideration
Liabilities
Total liabilities measured at fair value	0	0
Level 2 \| Sponsored funds
Investment securities - fair value
Fair value	0	0
Level 2 \| Equity securities
Investment securities - fair value
Fair value	0	0
Level 2 \| Nonqualified retirement plan assets
Investment securities - fair value
Nonqualified retirement plan assets	0	0
Level 3
Assets
Cash equivalents	0	0
Investment securities - fair value
Debt securities	0	0
Total assets measured at fair value	0	0
Liabilities
Total liabilities measured at fair value	20,000	36,100
Level 3 \| Contingent consideration
Liabilities
Total liabilities measured at fair value	20,000	36,100
Level 3 \| Sponsored funds
Investment securities - fair value
Fair value	0	0
Level 3 \| Equity securities
Investment securities - fair value
Fair value	0	0
Level 3 \| Nonqualified retirement plan assets
Investment securities - fair value
Nonqualified retirement plan assets	$ 0	$ 0

Fair value portion of asset recognized for present right to economic benefit.

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Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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Fair value of financial and nonfinancial obligations.

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Investments In Nonqualified Retirement Plan Assets

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