Revenues

12 Months Ended

Dec. 31, 2021

Revenue from Contract with Customer [Abstract]

Revenues

Revenues

Revenue Disaggregated by Source

The following table summarizes investment management fees by source:

	Years Ended December 31,
(in thousands)	2021		2020		2019
Investment management fees
Open-end funds	$	393,673	$	247,519	$	229,637
Closed-end funds	63,301		36,833		42,199
Retail separate accounts	174,919		104,932		82,999
Institutional accounts	143,487		109,531		96,429
Structured products	4,726		4,012		6,381
Other products	1,479		2,511		3,832
Total investment management fees	$	781,585	$	505,338	$	461,477