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GOODWILL AND OTHER INTANGIBLE ASSETS (Details 2) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Dec. 31, 2014
Amortized intangible assets:      
Gross Carrying Amount $ 77,525us-gaap_FiniteLivedIntangibleAssetsGross   $ 85,506us-gaap_FiniteLivedIntangibleAssetsGross
Accumulated Amortization (42,315)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization   (45,461)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
Net Value 35,210us-gaap_FiniteLivedIntangibleAssetsNet   40,045us-gaap_FiniteLivedIntangibleAssetsNet
Aggregate amortization expense 1,081us-gaap_AmortizationOfIntangibleAssets 1,398us-gaap_AmortizationOfIntangibleAssets  
Future estimated amortization expense      
2016 3,554us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo    
2017 3,132us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree    
2018 3,133us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour    
2019 and thereafter 22,336atr_FiniteLivedIntangibleAssetsAmortizationExpenseYearFiveAndThereafter    
2015 3,055us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear    
Weighted Average      
Amortized intangible assets:      
Amortization Period 9 years    
Patents      
Amortized intangible assets:      
Gross Carrying Amount 15,216us-gaap_FiniteLivedIntangibleAssetsGross
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_PatentsMember
  17,001us-gaap_FiniteLivedIntangibleAssetsGross
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_PatentsMember
Accumulated Amortization (15,135)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_PatentsMember
  (16,852)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_PatentsMember
Net Value 81us-gaap_FiniteLivedIntangibleAssetsNet
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_PatentsMember
  149us-gaap_FiniteLivedIntangibleAssetsNet
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_PatentsMember
Patents | Weighted Average      
Amortized intangible assets:      
Amortization Period 7 years    
Acquired technology      
Amortized intangible assets:      
Gross Carrying Amount 31,712us-gaap_FiniteLivedIntangibleAssetsGross
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_PatentedTechnologyMember
  35,701us-gaap_FiniteLivedIntangibleAssetsGross
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_PatentedTechnologyMember
Accumulated Amortization (6,871)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_PatentedTechnologyMember
  (5,950)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_PatentedTechnologyMember
Net Value 24,841us-gaap_FiniteLivedIntangibleAssetsNet
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_PatentedTechnologyMember
  29,751us-gaap_FiniteLivedIntangibleAssetsNet
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_PatentedTechnologyMember
Acquired technology | Weighted Average      
Amortized intangible assets:      
Amortization Period 15 years    
License agreements and other      
Amortized intangible assets:      
Gross Carrying Amount 30,597us-gaap_FiniteLivedIntangibleAssetsGross
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= atr_LicensingAgreementsAndOtherProductMember
  32,804us-gaap_FiniteLivedIntangibleAssetsGross
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= atr_LicensingAgreementsAndOtherProductMember
Accumulated Amortization (20,309)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= atr_LicensingAgreementsAndOtherProductMember
  (22,659)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= atr_LicensingAgreementsAndOtherProductMember
Net Value $ 10,288us-gaap_FiniteLivedIntangibleAssetsNet
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= atr_LicensingAgreementsAndOtherProductMember
  $ 10,145us-gaap_FiniteLivedIntangibleAssetsNet
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= atr_LicensingAgreementsAndOtherProductMember
License agreements and other | Weighted Average      
Amortized intangible assets:      
Amortization Period 5 years