v3.26.3
STOCK-BASED COMPENSATION - Schedule of Compensation Expense, Fair Value, and Intrinsic Value Related to Rsu's (Details) - Restricted Stock Units - USD ($)
$ in Thousands
9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Share-based Compensation Arrangement by Share-based Payment Award    
Compensation expense, Total $ 26,171 $ 30,103
Fair value of units vested 35,358 43,382
Intrinsic value of units vested 37,772 53,743
Income Statement Location [Axis]: us-gaap:CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization    
Share-based Compensation Arrangement by Share-based Payment Award    
Compensation expense, Total 2,269 2,588
Income Statement Location [Axis]: atr:SellingResearchAndDevelopmentAndAdministrativeExpenses    
Share-based Compensation Arrangement by Share-based Payment Award    
Compensation expense, Total $ 23,902 $ 27,515