Fair Value Measurements - Impairment of Assets Measured on a Non-Recurring Basis (Details) - Fair Value, Measurements, Nonrecurring - Level 3 - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Impairment Disclosure
Impairment Charges	$ 68,453	$ 31,076	$ 91,217
Real estate and intangibles
Impairment Disclosure
Fair Value Measurements	32,497	29,494	31,350
Impairment Charges	39,119	24,246	35,830
Investment Management goodwill
Impairment Disclosure
Fair Value Measurements	0	0	0
Impairment Charges	29,334	0	0
Equity method investments
Impairment Disclosure
Fair Value Measurements	0	8,175	55,245
Impairment Charges	$ 0	$ 6,830	$ 55,387