Revenue Recognition (Details)
$ in Thousands |
12 Months Ended |
|
Dec. 31, 2021
USD ($)
Fund
|
Dec. 31, 2020
USD ($)
|
| Revenue Streams [Abstract] |
|
|
| Revenue |
$ 301,126
|
$ 259,726
|
| Performance-based [Member] | Minimum [Member] |
|
|
| Revenue Streams [Abstract] |
|
|
| Revenue |
$ 0
|
|
| Closed-end Funds [Member] | Performance-based [Member] |
|
|
| Revenue Streams [Abstract] |
|
|
| Number of days for customer to make payment after being invoiced |
30 days
|
|
| Number of funds | Fund |
2
|
|
| Advisory Fees [Member] |
|
|
| Revenue Streams [Abstract] |
|
|
| Revenue |
$ 274,531
|
233,628
|
| Advisory Fees [Member] | Performance-based [Member] |
|
|
| Revenue Streams [Abstract] |
|
|
| Revenue |
$ 13,157
|
8,924
|
| Advisory Fees [Member] | Conditional [Member] |
|
|
| Revenue Streams [Abstract] |
|
|
| Number of days for customer to make payment after being invoiced |
60 days
|
|
| Advisory Fees [Member] | Open-end Funds [Member] |
|
|
| Revenue Streams [Abstract] |
|
|
| Revenue |
$ 98,281
|
88,884
|
| Number of days for customer to make payment after being invoiced |
30 days
|
|
| Advisory Fees [Member] | Closed-end Funds [Member] |
|
|
| Revenue Streams [Abstract] |
|
|
| Revenue |
$ 80,580
|
64,221
|
| Number of days for customer to make payment after being invoiced |
30 days
|
|
| Advisory Fees [Member] | Closed-end Funds [Member] | Performance-based [Member] |
|
|
| Revenue Streams [Abstract] |
|
|
| Number of days for customer to make payment after being invoiced |
30 days
|
|
| Advisory Fees [Member] | Sub-advisory Accounts [Member] |
|
|
| Revenue Streams [Abstract] |
|
|
| Revenue |
$ 2,524
|
2,313
|
| Number of days for customer to make payment after being invoiced |
30 days
|
|
| Advisory Fees [Member] | Institutional & Private Wealth Management [Member] |
|
|
| Revenue Streams [Abstract] |
|
|
| Revenue |
$ 73,218
|
64,290
|
| Number of days for customer to make payment after being invoiced |
60 days
|
|
| Advisory Fees [Member] | Institutional & Private Wealth Management [Member] | Performance-based [Member] |
|
|
| Revenue Streams [Abstract] |
|
|
| Number of days for customer to make payment after being invoiced |
60 days
|
|
| Advisory Fees [Member] | SICAVs [Member] |
|
|
| Revenue Streams [Abstract] |
|
|
| Revenue |
$ 6,771
|
4,996
|
| Number of days for customer to make payment after being invoiced |
30 days
|
|
| Advisory Fees [Member] | SICAVs [Member] | Performance-based [Member] | Non-US Closed-end Fund [Member] |
|
|
| Revenue Streams [Abstract] |
|
|
| Number of funds | Fund |
1
|
|
| Distribution Fees and Other Income [Member] |
|
|
| Revenue Streams [Abstract] |
|
|
| Revenue |
$ 26,595
|
$ 26,098
|
| Number of days for customer to make payment after being invoiced |
30 days
|
|