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Related Party Transactions (Details) - USD ($) $ in Millions	1 Months Ended	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Related Party Transaction [Line Items]
Net expenses from transactions with related parties		$ 2.0	$ 2.4	$ 3.4
Due to related parties		1.0	3.0
Due from related parties		3.0	4.0
Other income (loss)		$ 15.0	$ 21.0	38.0
Executive Officer
Related Party Transaction [Line Items]
Shares cancelled (in shares)	385,777
Other income (loss)				12.0
Equity in Earnings (Losses) of Investees
Related Party Transaction [Line Items]
Revenue from related parties				$ 0.5
Wellington Management Company LLP
Related Party Transaction [Line Items]
Ownership percentage by noncontrolling owners		5.00%	5.00%
BlackRock Financial Management Inc.
Related Party Transaction [Line Items]
Ownership percentage by noncontrolling owners		5.00%	5.00%