STOCK-BASED COMPENSATION (Details - Stock Options Rollforward) - Jun. 30, 2015 - USD ($)	Total
STOCK-BASED COMPENSATION
Share Price	$ 78.61
Stock options, Grant Date Fair Value Valuation
Grant date fair value	$ 22.98
Aggregate stock options
Stock options, Shares
Outstanding at the beginning of the period (in shares)	2,136,679
Granted (in shares)	38,131
Exercised (in shares)	(128,666)
Forfeited (in shares)	(775)
Expired (in shares)	(1,339)
Outstanding at the end of the period (in shares)	2,044,030
Options exercisable at the end of the period (in shares)	937,796
Stock options, Weighted Average Exercise Price
Outstanding at the beginning of the period (in dollars per share)	$ 18.16
Granted (in dollars per share)	58.49
Exercised (in dollars per share)	16.79
Forfeited (in dollars per share)	53.04
Expired (in dollars per share)	7.88
Outstanding at the end of the period (in dollars per share)	18.99
Options exercisable at the end of the period (in dollars per share)	$ 8.63
Stock options, Weighted Average Remaining Contractual Term
Outstanding at the end of the period	6 years 6 months 7 days
Options exercisable at the end of the period	3 years 11 months 20 days
Stock options, Aggregate Intrinsic Value
Outstanding at the end of the period	$ 121,867,000
Options exercisable at the end of the period	65,628,000
Stock options, Grant Date Fair Value Valuation
Expected dividends	$ 0
Expected dividend rate	0.00%
Expected volatility, minimum	38.00%
Expected volatility, maximum	38.00%
Risk-free interest rate, minimum	1.66%
Risk-free interest rate, maximum	2.01%
Stock options
Stock options, Grant Date Fair Value Valuation
Vesting period	3 years
Director Stock Option [Member]
Stock options, Grant Date Fair Value Valuation
Vesting period	2 years
Minimum \| Aggregate stock options
Stock options, Grant Date Fair Value Valuation
Expected term	P5Y9M
Minimum \| Stock options
Stock options, Grant Date Fair Value Valuation
Grant date fair value
Maximum \| Aggregate stock options
Stock options, Grant Date Fair Value Valuation
Expected term	P6Y2M21D
Maximum \| Stock options
Stock options, Grant Date Fair Value Valuation
Grant date fair value
Share-based Compensation Award, Tranche One [Member] \| Stock options
Stock options, Grant Date Fair Value Valuation
Vesting period	1 year 8 months 2 days
Award Vesting Rights, Percentage	25.00%
Share-based Compensation Award, Tranche Two [Member] \| Stock options
Stock options, Grant Date Fair Value Valuation
Vesting period	2 years 8 months 2 days
Award Vesting Rights, Percentage	75.00%

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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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The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

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The estimated amount of dividends to be paid to holders of the underlying shares (expected dividends) over the option's term. Dividends are taken into account because payment of dividends to shareholders reduces the fair value of the underlying shares, and option holders generally do not receive dividends.

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The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.

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Discloses use of the simplified method to calculate the expected term that stock option awards under the specified plan will exist before being exercised or terminated, the reason and justification for its use, and the periods for which the method was used if it was not used in all periods presented.

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The estimated measure of the maximum percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

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The estimated measure of the minimum percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

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The maximum risk-free interest rate assumption that is used in valuing an option on its own shares.

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The minimum risk-free interest rate assumption that is used in valuing an option on its own shares.

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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 number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

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Number of options or other stock instruments for which the right to exercise has lapsed under the terms of the plan agreements.

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Gross number of share options (or share units) granted during the period.

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The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.

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Number of options outstanding, including both vested and non-vested options.

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Weighted average price at which option holders acquired shares when converting their stock options into shares.

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Weighted average price at which grantees could have acquired the underlying shares with respect to stock options of the plan that expired.

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Weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated.

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Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

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Price of a single share of a number of saleable stocks of a company.

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Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Number of share options (or share units) exercised during the current period.

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