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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