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Investments in Other Entities and Noncontrolling Interest in a Subsidiary - NG Advantage (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Oct. 14, 2014
Schedule of Equity Method Investments [Line Items]            
Loss attributable to noncontrolling interest $ 182 $ 168 $ 297 $ 232    
NG Advantage            
Schedule of Equity Method Investments [Line Items]            
Ownership interest acquired           53.30%
NG Advantage            
Schedule of Equity Method Investments [Line Items]            
Ownership interest after transaction (as a percent)     93.30%      
Loss attributable to noncontrolling interest 200 $ 200 $ 300 $ 200    
Investments carried at cost $ 5,300   $ 5,300   $ 5,600