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Debt - Credit Facilities - Narrative (Detail) - Credit facilities - USD ($)	Mar. 31, 2023	Mar. 13, 2023	Dec. 31, 2022
Line of Credit
Debt Instrument [Line Items]
Maximum Borrowing Capacity	$ 200,000,000
Credit Suisse AG, Cayman Islands
Debt Instrument [Line Items]
Short-term debt	25,000,000		$ 23,000,000
Credit Suisse AG, Cayman Islands | Line of Credit
Debt Instrument [Line Items]
Maximum Borrowing Capacity	50,000,000	$ 50,000,000	100,000,000
Credit Suisse and Citibank, N.A
Debt Instrument [Line Items]
Short-term debt	$ 28,000,000		$ 28,000,000

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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