Revenues

12 Months Ended

Dec. 31, 2019

Revenue from Contract with Customer [Abstract]

Revenues

Revenues

Revenue Disaggregated by Source

The following table summarizes revenue by source:

	Years Ended December 31,
(in thousands)	2019		2018		2017 (1)
Investment management fees
Open-end funds	$	229,637	$	231,175	$	175,260
Closed-end funds	42,199		41,455		44,687
Retail separate accounts	82,999		73,532		54,252
Institutional accounts	96,429		77,711		46,600
Structured products	6,381		9,622		6,302
Other products	3,832		3,526		3,974
Total investment management fees	461,477		437,021		331,075
Distribution and service fees	40,898		50,715		44,322
Administration and shareholder service fees	59,884		63,614		48,996
Other income and fees	987		885		1,214
Total revenues	$	563,246	$	552,235	$	425,607

(1)

Prior period amounts have not been adjusted and are reported in accordance with historical accounting under ASC 605, Revenue Recognition.