Revenues (Tables)

6 Months Ended

Jun. 30, 2022

Revenue from Contract with Customer [Abstract]

Investment Management Fees by Source

The following table summarizes investment management fees by source:

	Three Months Ended June 30,				Six Months Ended June 30,
(in thousands)	2022		2021		2022		2021
Investment management fees
Open-end funds	$	84,875	$	97,273	$	182,252	$	186,393
Closed-end funds	16,174		16,395		33,114		29,335
Retail separate accounts	45,312		42,475		94,915		79,987
Institutional accounts	38,663		37,367		81,560		71,064
Total investment management fees	$	185,024	$	193,510	$	391,841	$	366,779