STOCK PLANS AND STOCK-BASED COMPENSATION (Detail Textuals 1) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Excess tax benefits recognized	$ 3,500	$ 4,700	$ 1,600
Vesting period one	3 years
Vesting period two	4 years
Vesting period three	5 years
Term of equity instruments granted (in years)	7 years
Vesting percentage based on death or permanent disability of grantees	100.00%
Vesting percentage based upon retirement	100.00%
Tax benefit realized from vesting of restricted stock units	$ 5,260	4,392	3,342
Grant date fair value of stock options vested	0	500	5,000
Stock-based compensation expense	$ 14,072	$ 11,557	$ 8,832
Restricted Shares And Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted-average fair value of equity instruments granted	$ 76.37	$ 72.17	$ 59.07
Total intrinsic value of RSUs that vested	$ 18,600	$ 23,100	$ 17,600
Tax benefit realized from vesting of restricted stock units	7,000	$ 8,800	$ 6,900
Unrecognized compensation cost	$ 32,400
Weighted-average period to recognize unrecognized compensation cost (in years)	2 years 2 months 12 days
2002 Employee Stock Purchase Plan (ESPP)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized for grants	1,250,000
Share purchase price over fair market value	95.00%
Maximum number of shares that an eligible employee can purchase	The maximum number of shares that an eligible employee can purchase during any quarter is equal to two times an amount determined as follows: 20 percent of such employee's compensation over the quarter, divided by 95 percent of the fair market value of a share of common stock on the last day of the quarter.
Percent of employee compensation over the quarter	20.00%
Percent of fair market value of shares	95.00%
2002 Employee Stock Purchase Plan (ESPP) \| Participants
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares purchased under ESPP	1,034,933
Weighted-average purchase price per share	$ 48.59
2002 Employee Stock Purchase Plan (ESPP) \| Employees
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares purchased under ESPP	43,736
Weighted-average purchase price per share	$ 74.12
MSPP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period (in years)	3 years
Number of shares authorized for grants	500,000
Percentage of annual bonus in lieu of which RSU received	85.00%	85.00%	85.00%
MSPP \| Senior Executive
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of annual bonus in lieu of which RSU received	100.00%
DSPP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized for grants	75,000
DSPP \| Director
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of annual retainer fees in lieu of which RSU received	100.00%

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Percent Of Fair Market Value Of Shares

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Share Based Compensation Arrangement By Share Based Payment Award, Award Vesting Period One

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Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Total Intrinsic Value

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Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments, Vesting Percentage Based On Death Or Permanent Disability Of Grantees

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Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments, Vesting Percentage Based Upon Retirement

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Percentage of annual retainer fees in lieu of which RSU received.

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Share Based Compensation Arrangement By Share Based Payment Award Restricted Stock Issued In Lieu Of Percentage Of Annual Bonus

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Share based compensation number of share authorized to be purchased by eligible employee

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Unrecognized cost of unvested share-based compensation awards.

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Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The total recognized tax benefit related to compensation cost for equity-based payment arrangements recognized in income during the period.

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Amount of cash inflow from realized tax benefit related to deductible compensation cost reported on the entity's tax return for equity instruments in excess of the compensation cost for those instruments recognized for financial reporting purposes.

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Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Discount rate from fair value on offering date that participants pay for shares.

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The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

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The weighted average of per share prices paid for shares purchased on the open market for issuance to employees under the plan.

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The number of shares purchased on the open market during the period for issuance to employees under the plan.

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Expected term of share-based compensation awards, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Fair value of options vested. Excludes equity instruments other than options, for example, but not limited to, share units, stock appreciation rights, restricted stock.

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