XML 79 R66.htm IDEA: XBRL DOCUMENT v3.22.4
Intangible Assets - Narrative (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Indefinite-lived Intangible Assets [Line Items]      
Impairment of Intangible Asset $ 31,520 $ 0 $ 0
Decrease in value of intangible assets denominated in a foreign currency as a result of foreign exchange rate fluctuations 27,200    
Amortization expense for finite-lived intangible assets 12,500 13,800 $ 13,800
Finite-lived intangible assets, foreign currency translation 7,200    
Goodwill, period increase (decrease) 1,500    
Goodwill, foreign currency translation 14,800    
C W Henderson And Associates      
Indefinite-lived Intangible Assets [Line Items]      
Finite-lived intangible assets 15,400    
Rights to Manage Fund Assets      
Indefinite-lived Intangible Assets [Line Items]      
Indefinite-lived intangible assets 295,600 347,800  
Trade Name      
Indefinite-lived Intangible Assets [Line Items]      
Indefinite-lived intangible assets 47,600 $ 53,100  
Right to Manage Public Funds      
Indefinite-lived Intangible Assets [Line Items]      
Indefinite-lived intangible assets $ 150,400