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Fair Value Measurements - Additional Information (Detail) - USD ($) $ in Millions	1 Months Ended	12 Months Ended
	Apr. 30, 2022	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Ownership interest exceeds respective investments		3.00%
Equity Method Investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity in the earnings of liability companies or partnerships		$ (5.0)	$ 10.0	$ (6.2)
Ownership interest exceeds respective investments		3.00%
Variable Interest Entity, Not Primary Beneficiary
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Ownership interest exceeds respective investments		3.00%
7.875% Subordinated Notes due 2047
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Subordinated Notes due date	2047	2047	2047
Fair Value, Inputs, Level 1 | 7.875% Subordinated Notes due 2047
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Subordinated Notes due date		2047

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Amount of income (loss) for proportionate share of equity method investee's income (loss).

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