Annual report pursuant to Section 13 and 15(d)

Commitments and Contingencies - Narrative (Detail)

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Commitments and Contingencies - Narrative (Detail) - USD ($)
$ in Thousands
 2 Months Ended 12 Months Ended
Sep. 25, 2023
Feb. 27, 2024
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Line of Credit Facility [Line Items]          
Interest expense     $ 888 $ 708 $ 580
Guarantee obligations, maximum exposure     152,600    
Maximum unpaid loan amount for which guarantee obligations granted     915,400    
Allowance for loss sharing obligations     851 275  
Guarantor obligations, amount pledged     283 16  
Other commitment amount     15,900    
Subsequent Event          
Line of Credit Facility [Line Items]          
Other commitment, amount paid   $ 4,600      
Revolving Credit Facility | Credit Facility | Line of Credit          
Line of Credit Facility [Line Items]          
Maximum borrowing capacity $ 10,000        
Standby letters of credit borrowing capacity $ 3,000        
Standby letters of credit, utilized amount     1,050    
Credit agreement, unused capacity, commitment fee percentage 0.50%        
Interest expense     128 $ 167  
Credit agreement, amount outstanding     $ 0    
Total liquidity, minimum requirement $ 100,000        
Average daily cash balance, minimum requirement $ 35,000        
Credit agreement, pledge percentage 100.00%        
Revolving Credit Facility | Secured Overnight Financing Rate (SOFR) | Credit Facility | Line of Credit          
Line of Credit Facility [Line Items]          
Line of credit facility bearing interest rate 1.75%