Variable Interest Entities (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Total nonconsolidated variable interest entities:
Carrying value of variable interest - assets	$ 3,007,949	$ 2,851,894
Carrying value of variable interest - liabilities	1,604,954	1,583,403
Nonconsolidated VIEs
Total nonconsolidated variable interest entities:
Carrying value of variable interest - assets	11,530	11,530
Maximum exposure to loss:
Non-public equity	11,530	11,530
Total	$ 11,530	$ 11,530