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Related Party Transactions (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Related Party Transaction [Line Items]
Revenues	$ 1,919,793	$ 1,991,037	$ 1,918,309
Asset management, administration and distribution fees
Related Party Transaction [Line Items]
Revenues	1,514,815	1,514,063	1,547,016
Affiliated Entity | Asset management, administration and distribution fees | Fees Earned From Related Party
Related Party Transaction [Line Items]
Revenues	389,219	420,206	473,161
Affiliated Entity | Asset management, administration and distribution fees | Commissions Earned From Related Party
Related Party Transaction [Line Items]
Revenues	$ 1,352	$ 2,601	$ 1,917

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