Debt (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Jun. 30, 2013
Debt Instrument [Line Items]
Line of credit facility unsecured borrowings amount	$ 150,000
Line of credit facility, amount outstanding	8,696
Line of Credit Facility, Remaining Borrowing Capacity	141,304
Additional long-term financing under uncommitted shelf facility agreement amount	$ 125,000
Ratio of consolidated income before interest, taxes, depreciation and amortization to net interest expense	300.00%
Minimum [Member]
Debt Instrument [Line Items]
Fees on credit facility	0.09%
Maximum [Member]
Debt Instrument [Line Items]
Fees on credit facility	0.175%

Debt instrument additional long-term financing under uncommitted shelf facility agreement amount.

No definition available.

Name:	ait_DebtInstrumentAdditionalLongTermFinancingUnderUncommittedShelfFacilityAgreementAmount
Namespace Prefix:	ait_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Ratio of Income Before Interest, Taxes, Depreciation and Amortization to Net Interest Expense

+ References

No definition available.

+ Details

Name:	ait_RatioOfIncomeBeforeInterestTaxesDepreciationAndAmortizationToNetInterestExpense
Namespace Prefix:	ait_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	us-gaap_DebtInstrumentLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

+ References

No definition available.

+ Details

Name:	us-gaap_LettersOfCreditOutstandingAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The fee, expressed as a percentage of the line of credit facility, for the line of credit facility regardless of whether the facility has been used.

+ References

No definition available.

+ Details

Name:	us-gaap_LineOfCreditFacilityCommitmentFeePercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.19(b),22(b))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19, 22

-Article 5

+ Details

Name:	us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

+ References

+ Details

Name:	us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant