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Summary of Significant Accounting Policies - Additional Information (Details)
$ in Thousands, € in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2023
USD ($)
shares
Jun. 30, 2023
EUR (€)
shares
Jun. 30, 2023
USD ($)
shares
Jun. 30, 2023
EUR (€)
shares
Jun. 30, 2023
EUR (€)
Dec. 31, 2022
USD ($)
Oct. 18, 2022
shares
Summary Of Significant Accounting Policy [Line Items]              
Percentage of guaranteed interest rate 5.00%   5.00%   5.00%    
Percentage of guaranteed interest rate plus a variable component 1.62%   1.62%   1.62%    
Aggregate exit compensation payments obligation including guaranteed interest $ 348,100   $ 348,100   € 319.0    
Expire date of exit compensation     Mar. 16, 2023 Mar. 16, 2023      
Annual recurring compensation obligation     $ 11,600 € 10.6      
Accrued annual recurring compensation obligation $ 2,900   $ 5,700        
Number of shares tendered | shares 46,000 46,000 63,000 63,000      
Exit compensation payments $ 900 € 0.8 $ 1,200 € 1.1      
Revolving credit agreements outstanding 10,912   10,912     $ 35,936  
Non-current revolving credit agreement outstanding 200,000   200,000     60,000  
Deferred tax assets 82,076   82,076     67,839  
Total Assets 1,882,938   1,882,938     1,943,494  
Deferred tax liabilities 44,614   44,614     61,629  
Total Liabilities 655,006   655,006     639,881  
Total liabilities, non-controlling interest and equity $ 1,882,938   $ 1,882,938     $ 1,943,494  
ASU 2021-08 [Member]              
Summary Of Significant Accounting Policy [Line Items]              
Change in Accounting Principle, Accounting Standards Update, Adopted [true false] true   true   true    
Change in Accounting Principle, Accounting Standards Update, Adoption Date Jul. 01, 2022   Jul. 01, 2022   Jul. 01, 2022    
Adtran Networks SE [Member]              
Summary Of Significant Accounting Policy [Line Items]              
Number of shares tendered | shares 46,000 46,000 63,000 63,000      
Exit compensation payments $ 900 € 0.8 $ 1,200 € 1.1      
Equity method ownership percentage 34.60%   34.60%   34.60% 34.70%  
Adtran Networks SE [Member] | Maximum [Member]              
Summary Of Significant Accounting Policy [Line Items]              
Number of additional shares authorized to purchase | shares             15,346,544