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Fair Value Measurements - Fair Value Option on Consolidated VIEs (Details) - Other loans of consolidated VIEs - USD ($) $ in Millions	3 Months Ended	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2024	Dec. 31, 2023
Fair Value Option, Quantitative Disclosures
Fair value	$ 171.6	$ 171.6	$ 163.2
Aggregate contractual principal	179.4	179.4	$ 167.1
Change in fair value pre-tax loss - instrument specific credit risk	(6.1)	(11.4)
Change in fair value pre-tax gain (loss)	(6.1)	(11.4)
Interest income	$ 11.2	$ 18.4

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The amount change in fair value pre-tax loss - instrument specific credit risk.

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The contractual principal amounts of assets for which the fair value option was elected.

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The fair value of assets for which the fair value option was elected.

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For each line item in the statement of financial position, the amounts of gains and losses from fair value changes included in earnings.

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Amount of operating interest income, including, but not limited to, amortization and accretion of premiums and discounts on securities.

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