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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        
Revolving line of credit           $ 84,503        
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]                    
Revolving line of credit           $ 60,000        
Line of credit facility maturity and frequency of payment and borrowing frequency           in tranches that mature during the fourth quarter of 2022 and can either be repaid or borrowed again for a one month, three month or six month period        
Commitment fee percentage           0.25%        
Net leverage ratio   3.00                
Line of credit maturity period month and year           2027-07        
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%        
Syndicated Credit Agreement Working Capital Line of Credit [Member]                    
Line Of Credit Facility [Line Items]                    
Revolving line of credit           $ 9,801        
Nord/LB Revolving Line of Credit [Member]                    
Line Of Credit Facility [Line Items]                    
Revolving line of credit $ 14,700         14,702        
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