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Revolving Credit Agreements - Additional Information (Detail)
1 Months Ended 3 Months Ended
Mar. 29, 2023
USD ($)
Aug. 08, 2022
USD ($)
Aug. 05, 2022
Dec. 31, 2024
Sep. 30, 2024
Mar. 31, 2023
USD ($)
Dec. 31, 2022
USD ($)
Jul. 18, 2022
USD ($)
Sep. 30, 2018
USD ($)
Line Of Credit Facility [Line Items]                  
Weighted average interest rate           6.20%      
Revolving line of credit           $ 190,843,000 $ 95,936,000    
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]                  
Revolving line of credit           $ 180,000,000 60,000,000    
Line of credit facility maturity and frequency of payment and borrowing frequency           in tranches that mature during the second and third quarters of 2023 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%      
New Nord/LB Revolving Line of Credit [Member]                  
Line Of Credit Facility [Line Items]                  
Revolving line of credit $ 16,100,000         $ 10,843,000      
New Nord/LB Revolving Line of Credit [Member] | Euro Short Term Rate [Member]                  
Line Of Credit Facility [Line Items]                  
Applicable margin rate 1.94%                
Nord/LB Revolving Line of Credit [Member]                  
Line Of Credit Facility [Line Items]                  
Revolving line of credit   $ 16,100,000         16,091,000    
Available for future borrowings   $ 0              
Line of credit maturity period month and year   2023-08              
Nord/LB Revolving Line of Credit [Member] | Euro Short Term Rate [Member]                  
Line Of Credit Facility [Line Items]                  
Applicable margin rate   1.40%              
Syndicated Credit Agreement Working Capital Line of Credit [Member]                  
Line Of Credit Facility [Line Items]                  
Revolving line of credit             10,727,000    
Available for future borrowings                 $ 0
DZ Bank Revolving Line Of Credit [Member]                  
Line Of Credit Facility [Line Items]                  
Revolving line of credit             9,100,000    
Available for future borrowings             $ 0    
Interest rate             2.80%    
Acorn HoldCo, Inc., [Member] | Wells Fargo Credit Agreement [Member]                  
Line Of Credit Facility [Line Items]                  
Secured revolving credit facility amount           400,000,000.0   $ 100,000,000  
Revolving line of credit           180,000,000.0      
Credit facility, average outstanding amount           3,400,000      
Letters of credit may be issued           25,000,000.0      
Available for future borrowings           216,600,000      
Acorn HoldCo, Inc., [Member] | Wells Fargo Credit Agreement [Member] | Maximum [Member]                  
Line Of Credit Facility [Line Items]                  
Credit agreement current borrowing capacity           $ 400,000,000      
Bayerische Landesbank and Deutsche Bank [Member] | Syndicated Credit Agreement Working Capital Line of Credit [Member]                  
Line Of Credit Facility [Line Items]                  
Secured revolving credit facility amount                 $ 10,700,000
Scenario Forecast [Member] | Wells Fargo Credit Agreement [Member]                  
Line Of Credit Facility [Line Items]                  
Net leverage ratio       2.75 3.25