Revenues (Tables)

12 Months Ended

Dec. 31, 2024

Revenue from Contract with Customer [Abstract]

Schedule of Disaggregation of Revenue

The following table summarizes investment management fees by source:

	Years Ended December 31,
(in thousands)	2024		2023		2022
Investment management fees
Open-end funds	$	317,990	$	305,238	$	335,585
Closed-end funds	59,184		58,136		63,841
Retail separate accounts	209,467		171,357		171,509
Institutional accounts	187,189		176,744		157,404
Total investment management fees	$	773,830	$	711,475	$	728,339