Revenues (Tables)

9 Months Ended

Sep. 30, 2023

Revenue from Contract with Customer [Abstract]

Schedule of Investment Management Fees by Source

The following table summarizes investment management fees by source:

	Three Months Ended September 30,				Nine Months Ended September 30,
(in thousands)	2023		2022		2023		2022
Investment management fees
Open-end funds	$	80,294	$	80,234	$	229,721	$	262,486
Closed-end funds	14,673		15,773		44,025		48,887
Retail separate accounts	44,441		39,154		127,323		134,069
Institutional accounts	45,461		37,689		128,257		119,249
Total investment management fees	$	184,869	$	172,850	$	529,326	$	564,691