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Revolving Credit Agreements - Additional Information (Detail)
$ in Thousands
1 Months Ended 9 Months Ended
Aug. 08, 2022
USD ($)
Aug. 05, 2022
Dec. 31, 2024
Sep. 30, 2024
Oct. 31, 2019
USD ($)
Sep. 30, 2022
USD ($)
Jul. 18, 2022
USD ($)
May 19, 2022
USD ($)
Apr. 01, 2022
USD ($)
Sep. 30, 2018
USD ($)
Line Of Credit Facility [Line Items]                    
Weighted average interest rate           4.05%        
Repayment of debt under revolving credit agreements           $ 48,000        
Debt instrument default interest rate percentage           2.00%        
Daily Simple SOFR [Member]                    
Line Of Credit Facility [Line Items]                    
Credit facility, floor rate           0.00%        
EURIBOR [Member]                    
Line Of Credit Facility [Line Items]                    
Credit facility, floor rate           0.00%        
Maximum [Member] | Daily Simple SOFR [Member]                    
Line Of Credit Facility [Line Items]                    
Applicable margin rate           2.15%        
Maximum [Member] | Base Rate [Member]                    
Line Of Credit Facility [Line Items]                    
Applicable margin rate           1.25%        
Maximum [Member] | EURIBOR [Member]                    
Line Of Credit Facility [Line Items]                    
Applicable margin rate           2.25%        
Minimum [Member] | Daily Simple SOFR [Member]                    
Line Of Credit Facility [Line Items]                    
Applicable margin rate           1.40%        
Minimum [Member] | Base Rate [Member]                    
Line Of Credit Facility [Line Items]                    
Applicable margin rate           0.50%        
Minimum [Member] | EURIBOR [Member]                    
Line Of Credit Facility [Line Items]                    
Applicable margin rate           1.50%        
Wells Fargo Credit Agreement [Member]                    
Line Of Credit Facility [Line Items]                    
Commitment fee percentage           0.25%        
Net leverage ratio   3                
Wells Fargo Credit Agreement [Member] | Daily Simple SOFR [Member]                    
Line Of Credit Facility [Line Items]                    
Applicable margin rate           1.00%        
Wells Fargo Credit Agreement [Member] | Federal Reserve Bank Advances [Member]                    
Line Of Credit Facility [Line Items]                    
Applicable margin rate           1.00%        
Nord/LB Revolving Line of Credit [Member]                    
Line Of Credit Facility [Line Items]                    
Revolving line of credit $ 14,700         $ 14,700        
Available for future borrowings           0        
Line of credit maturity period month and year 2023-08                  
Debt cover ratio 2.75                  
Nord/LB Revolving Line of Credit [Member] | Euro Short Term Rate [Member]                    
Line Of Credit Facility [Line Items]                    
Applicable margin rate 1.40%                  
Acorn HoldCo, Inc., [Member] | Wells Fargo Credit Agreement [Member]                    
Line Of Credit Facility [Line Items]                    
Secured revolving credit facility amount           100,000 $ 100,000      
New secured revolving credit facility amount           100,000 $ 100,000      
Revolving line of credit           60,000        
Credit facility, average outstanding amount           16,000        
Letters of credit may be issued           25,000        
Available for future borrowings           24,000        
Acorn HoldCo, Inc., [Member] | Wells Fargo Credit Agreement [Member] | Maximum [Member]                    
Line Of Credit Facility [Line Items]                    
Credit agreement current borrowing capacity           400,000        
Cadence Bank, N.A [Member] | Secured Revolving Credit Facility [Member] | Revolving Credit and Security Agreement (The "Cadence Revolving Credit Agreement") [Member]                    
Line Of Credit Facility [Line Items]                    
Secured revolving credit facility amount               $ 25,000    
New secured revolving credit facility amount               $ 25,000    
Repayment of debt under revolving credit agreements           18,000        
Wells Fargo Bank [Member] | Secured Revolving Credit Facility [Member] | Revolving Credit and Security Agreement (The "Cadence Revolving Credit Agreement") [Member]                    
Line Of Credit Facility [Line Items]                    
Repayment of debt under revolving credit agreements           10,000        
Wells Fargo Bank [Member] | Secured Revolving Credit Facility [Member] | Credit Agreement and Revolving Line of Credit Note (The "Wells Revolving Credit Agreement") [Member]                    
Line Of Credit Facility [Line Items]                    
Secured revolving credit facility amount                 $ 25,000  
New secured revolving credit facility amount                 $ 25,000  
Deutsche Bank [Member]                    
Line Of Credit Facility [Line Items]                    
Revolving line of credit         $ 9,800          
Deutsche Bank [Member] | EURIBOR [Member]                    
Line Of Credit Facility [Line Items]                    
Applicable margin rate         1.10%          
Bayerische Landesbank and Deutsche Bank | Syndicated Credit Agreement Working Capital Line of Credit [Member]                    
Line Of Credit Facility [Line Items]                    
Secured revolving credit facility amount                   $ 9,800
New secured revolving credit facility amount                   $ 9,800
Revolving line of credit           9,800        
Available for future borrowings           $ 0        
Applicable margin rate           1.35%        
Scenario Forecast [Member] | Wells Fargo Credit Agreement [Member]                    
Line Of Credit Facility [Line Items]                    
Net leverage ratio     2.75 3.25