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STOCK BASED COMPENSATION - Additional Information (Details) (USD $)	12 Months Ended										1 Months Ended		12 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2014 Stock options	Jun. 30, 2013 Stock options	Jun. 30, 2012 Stock options	Jun. 30, 2014 Restricted stock units	Jun. 30, 2013 Restricted stock units	Jun. 30, 2012 Restricted stock units	Jun. 30, 2014 2010 Plan	Feb. 28, 2005 2005 Plan	Jun. 30, 2014 2005 Plan	Jun. 30, 2014 Minimum 2010 Plan Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Authorized number of shares										8,000,000
Option price as percentage of fair market value on the date of grant													100.00%
Additional awards that may be granted (in shares)												0
Vesting percentage on first anniversary of grant date											25.00%
Vesting period											3 years
Award expiration period											10 years
Authorized shares available for future issuance	9,918,184
Aggregate intrinsic value of options exercised				$ 30,500,000	$ 3,400,000	$ 48,600,000
Unrecognized compensation costs				2,000,000			9,600,000
Weighted-average period for recognition				2 years 2 months 0 days			3 years 2 months
Proceeds from exercise of stock options	2,090,000	635,000	811,000
Intrinsic value of award							$ 6,100,000	$ 1,000,000	$ 3,500,000
Total intrinsic value of all awards outstanding							$ 24,800,000

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Share based compensation arrangement by share based payment award equity instruments other than option nonvested intrinsic value.

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Aggregate number of common shares reserved for future issuance.

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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 cash inflow associated with the amount received from holders exercising their stock options. This item inherently excludes any excess tax benefit, which the entity may have realized and reported separately.

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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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Percentage of vesting of share-based compensation awards.

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Per share weighted average intrinsic value of equity-based compensation awards vested. Excludes stock and unit options.

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Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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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 difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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