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v2.4.1.9

Basis of Presentation Change in Accounting Principle (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 9 Months Ended
--- | --- | ---
Mar. 31, 2015 | Mar. 31, 2014 | Mar. 31, 2015 | Mar. 31, 2014
New Accounting Pronouncement or Change in Accounting Principle, Effect of Change on Net Income |  | $ 175 us-gaap_NewAccountingPronouncementOrChangeInAccountingPrincipleEffectOfChangeOnNetIncome |  | $ 1,342 us-gaap_NewAccountingPronouncementOrChangeInAccountingPrincipleEffectOfChangeOnNetIncome
Net Sales Impact [Member] [Member] |  |  |  |
New Accounting Pronouncement or Change in Accounting Principle, Effect of Change on Net Income |  |  |  | 1,200 us-gaap_NewAccountingPronouncementOrChangeInAccountingPrincipleEffectOfChangeOnNetIncome / us-gaap_AdjustmentsForChangeInAccountingPrincipleAxis = ait_NetSalesImpactMemberMember
Operating Income Impact [Member] |  |  |  |
Impact of Retrospective Adjustment |  |  |  | 100 ait_ImpactofRetrospectiveAdjustment / ait_AdjustmentsforChangeinAccountingPrincipleMexicoAxis = ait_OperatingIncomeImpactMember
Net Sales Impact [Member] [Member] |  |  |  |
New Accounting Pronouncement or Change in Accounting Principle, Effect of Change on Net Income |  | 200 us-gaap_NewAccountingPronouncementOrChangeInAccountingPrincipleEffectOfChangeOnNetIncome / ait_AdjustmentsforChangeinAccountingPrincipleMexicoAxis = ait_NetSalesImpactMemberMember |  | 200 us-gaap_NewAccountingPronouncementOrChangeInAccountingPrincipleEffectOfChangeOnNetIncome / ait_AdjustmentsforChangeinAccountingPrincipleMexicoAxis = ait_NetSalesImpactMemberMember
Impact of Retrospective Adjustment |  |  |  | 1,100 ait_ImpactofRetrospectiveAdjustment / ait_AdjustmentsforChangeinAccountingPrincipleMexicoAxis = ait_NetSalesImpactMemberMember
Net Income Impact [Member] |  |  |  |
Impact of Retrospective Adjustment |  |  |  | $ 300 ait_ImpactofRetrospectiveAdjustment / ait_AdjustmentsforChangeinAccountingPrincipleMexicoAxis = ait_NetIncomeImpactMember

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