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Fair Value Measurements - Concentration of Credit Risk (Details) - One OTC Counterparty - Concentration of credit risk - Credit exposure $ in Millions	9 Months Ended
	Sep. 30, 2023 USD ($)
Concentration Risk [Line Items]
Total credit risk	$ 80.3
Concentration risk, percentage	10.00%
Cash collateral	$ 21.1

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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Maximum potential amount of future undiscounted payments that could be required under the credit derivative, before reduction for potential recoveries under recourse or collateralization provisions.

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Amount of assets pledged to secure a debt instrument.

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