Other Assets and Liabilities - Additional Information (Details) $ in Millions	3 Months Ended		12 Months Ended
	Dec. 31, 2023 USD ($) transaction	Sep. 30, 2021 transaction	Dec. 31, 2023 USD ($) partnership	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($) transaction	Dec. 31, 2018 partnership
Other Assets and Other Liabilities [Line Items]
Number of partnerships consolidated \| partnership			2			2
Co-investors gains (losses)			$ 6.0	$ 2.0	$ 2.0
Number of securitization transactions co-sponsored \| transaction	2	2			2
Co-Investors Interests
Other Assets and Other Liabilities [Line Items]
Carrying value of interests	$ 21.0		21.0
Point Home Equity Investment Noncontrolling Interest
Other Assets and Other Liabilities [Line Items]
Carrying value of interests	$ 60.0		60.0
Co-investors gains (losses)			$ 8.0	$ 5.0	$ 0.4