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GOODWILL AND OTHER INTANGIBLE ASSETS (Details 2) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Amortized intangible assets:      
Gross Carrying Amount $ 85,506us-gaap_FiniteLivedIntangibleAssetsGross $ 95,970us-gaap_FiniteLivedIntangibleAssetsGross  
Accumulated Amortization (45,461)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization (46,019)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization  
Net Value 40,045us-gaap_FiniteLivedIntangibleAssetsNet 49,951us-gaap_FiniteLivedIntangibleAssetsNet  
Aggregate amortization expense 5,325us-gaap_AmortizationOfIntangibleAssets 5,033us-gaap_AmortizationOfIntangibleAssets 3,177us-gaap_AmortizationOfIntangibleAssets
Future estimated amortization expense      
2015 4,467us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths    
2016 3,887us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo    
2017 3,431us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree    
2018 3,432us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour    
2019 and thereafter 24,828atr_FiniteLivedIntangibleAssetsAmortizationExpenseYearFiveAndThereafter    
Weighted Average      
Amortized intangible assets:      
Amortization Period 10 years    
Patents      
Amortized intangible assets:      
Gross Carrying Amount 17,001us-gaap_FiniteLivedIntangibleAssetsGross
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_PatentsMember
20,165us-gaap_FiniteLivedIntangibleAssetsGross
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_PatentsMember
 
Accumulated Amortization (16,852)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_PatentsMember
(19,732)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_PatentsMember
 
Net Value 149us-gaap_FiniteLivedIntangibleAssetsNet
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_PatentsMember
433us-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 35,701us-gaap_FiniteLivedIntangibleAssetsGross
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_PatentedTechnologyMember
40,546us-gaap_FiniteLivedIntangibleAssetsGross
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_PatentedTechnologyMember
 
Accumulated Amortization (5,950)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_PatentedTechnologyMember
(4,055)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_PatentedTechnologyMember
 
Net Value 29,751us-gaap_FiniteLivedIntangibleAssetsNet
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_PatentedTechnologyMember
36,491us-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 32,804us-gaap_FiniteLivedIntangibleAssetsGross
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= atr_LicensingAgreementsAndOtherProductMember
35,259us-gaap_FiniteLivedIntangibleAssetsGross
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= atr_LicensingAgreementsAndOtherProductMember
 
Accumulated Amortization (22,659)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= atr_LicensingAgreementsAndOtherProductMember
(22,232)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= atr_LicensingAgreementsAndOtherProductMember
 
Net Value $ 10,145us-gaap_FiniteLivedIntangibleAssetsNet
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= atr_LicensingAgreementsAndOtherProductMember
$ 13,027us-gaap_FiniteLivedIntangibleAssetsNet
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= atr_LicensingAgreementsAndOtherProductMember
 
License agreements and other | Weighted Average      
Amortized intangible assets:      
Amortization Period 5 years