XML 56 R40.htm IDEA: XBRL DOCUMENT v3.21.1
Intangible Assets, Net - Summary of Intangible Assets, Net (Details) - USD ($)
$ in Thousands
Mar. 31, 2021
Dec. 31, 2020
Mar. 31, 2020
Dec. 31, 2019
Definite-lived intangible assets:        
Investment contracts and other $ 609,958 $ 489,570    
Accumulated amortization (262,287) (252,822)    
Definite-lived intangible assets, net 347,671 236,748    
Indefinite-lived intangible assets 43,516 43,516    
Total intangible assets, net $ 391,187 $ 280,264 $ 302,858 $ 310,391