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RETIREMENT AND DEFERRED COMPENSATION PLANS (Details 3) (USD $) In Millions, unless otherwise specified | 12 Months Ended
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Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Defined contribution plan - Domestic Plans |  |  |
Defined contribution plans |  |  |
Total contributions by Company | $ 2.8us-gaap_DefinedContributionPlanCostRecognized / atr_DefinedContributionPlanAxis = atr_UnitedStatesDefinedContributionPlanMember | $ 2.6us-gaap_DefinedContributionPlanCostRecognized / atr_DefinedContributionPlanAxis = atr_UnitedStatesDefinedContributionPlanMember | $ 2.6us-gaap_DefinedContributionPlanCostRecognized / atr_DefinedContributionPlanAxis = atr_UnitedStatesDefinedContributionPlanMember
Defined contribution plan - Domestic Plans | Maximum |  |  |
Defined contribution plans |  |  |
Employer matching contribution as a percentage of salary | 3.00%us-gaap_DefinedContributionPlanEmployerMatchingContributionPercent / atr_DefinedContributionPlanAxis = atr_UnitedStatesDefinedContributionPlanMember / us-gaap_RangeAxis = us-gaap_MaximumMember |  |
Defined contribution plan - Foreign Plans |  |  |
Defined contribution plans |  |  |
Total contributions by Company | $ 2.3us-gaap_DefinedContributionPlanCostRecognized / atr_DefinedContributionPlanAxis = atr_ForeignDefinedContributionPlanMember | $ 2.1us-gaap_DefinedContributionPlanCostRecognized / atr_DefinedContributionPlanAxis = atr_ForeignDefinedContributionPlanMember | $ 1.8us-gaap_DefinedContributionPlanCostRecognized / atr_DefinedContributionPlanAxis = atr_ForeignDefinedContributionPlanMember

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- Details
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- Definition The amount of the cost recognized during the period for defined contribution plans. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 70 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6414718&loc=d3e28014-114942 + Details
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- Definition Percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan. + References No definition available. + Details
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