v3.26.1
STOCK-BASED COMPENSATION - Schedule of Compensation Expense, Fair Value, and Intrinsic Value Related to Option Activity (Details) - Options - USD ($)
$ in Thousands
6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Share-based Compensation Arrangement by Share-based Payment Award    
Compensation expense, Total $ 5,852 $ 5,626
Compensation expense, net of tax 4,982 4,656
Grant date fair value of options vested 7,502 5,200
Income Statement Location [Axis]: us-gaap:CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization    
Share-based Compensation Arrangement by Share-based Payment Award    
Compensation expense, Total 460 487
Income Statement Location [Axis]: atr:SellingResearchAndDevelopmentAndAdministrativeExpenses    
Share-based Compensation Arrangement by Share-based Payment Award    
Compensation expense, Total $ 5,392 $ 5,139