| **STOCK-BASED COMPENSATION Stock Option Activity (Details) (USD $)In Thousands, except Per Share data, unless otherwise specified** | 12 Months Ended          |
|-------------------------------------------------------------------------------------------------------------------------------------|--------------------------|
||
| **Share-based Compensation Arrangement by Share-based Payment Award [Line Items]**                                                  |                     |   |   |
| Share Based Payment Award Maximum Term                                                                                              | 10                       |   |   |
| Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized                             | $ 10,377                 |   |   |
| **Assumptions used to estimate fair value of service-based stock options [Abstract]**                                               |                     |   |   |
| Weighted average risk-free interest rate                                                                                            | 1.20%                    | 2.62% | 2.63% |
| Weighted average expected volatility                                                                                                | 45.16%                   | 44.35% | 42.60% |
| Expected annual dividends per share                                                                                                 | $ 0.15                   | $ 0.15 | $ 0.15 |
| Weighted average estimated fair value per option                                                                                    | $ 40.59                  | $ 29.81 | $ 26.67 |
| Stock Option [Member]                                                                                                               |                     |   |   |
| **Share-based Compensation Arrangement by Share-based Payment Award [Line Items]**                                                  |                     |   |   |
| Share Based Payment Award Maximum Term                                                                                              | 10 years                 |   |   |
| Options, non-vested, unrecognized compensation expense, period for recognition (in years)                                           | 1 year 8 months 12 days  |   |   |
| **Service-based stock option activity [Roll Forward]**                                                                              |                     |   |   |
| Service-based stock options, outstanding, beginning of period                                                                       | 2,189                    |   |   |
| Service-based stock options, granted                                                                                                | 187                      |   |   |
| Service-based stock options, exercised                                                                                              | 411                      |   |   |
| Service-based stock options, cancelled                                                                                              | 7                        |   |   |
| Service-based stock options, outstanding, end of period                                                                             | 1,958                    | 2,189 |   |
| Service-based stock options, exercisable                                                                                            | 1,287                    |   |   |
| Service-based stock options, outstanding, weighted average price per option, beginning of period                                    | $ 37.77                  |   |   |
| Service-based stock options, granted, weighted average price per option                                                             | $ 91.88                  |   |   |
| Service-based stock options, exercised, weighted average price per option                                                           | $ 31.90                  |   |   |
| Service-based stock options, cancelled, weighted average price per option                                                           | $ 41.92                  |   |   |
| Service-based stock options, outstanding, weighted average price per option, end of period                                          | $ 44.17                  | $ 37.77 |   |
| Service-based stock options, exercisable, weighted average price per option                                                         | $ 37.50                  |   |   |
| Service-based stock options, outstanding, weighted average remaining contractual life (in years), end of period                     | 5 years 4 months 24 days | 5 years 8 months 12 days |   |
| Service-based stock options, outstanding, aggregate intrinsic value, beginning of period                                            | 85,200                   |   |   |
| Service-based stock options, outstanding, aggregate intrinsic value, end of period                                                  | 141,117                  | 85,200 |   |
| Service-based stock options, exercisable, aggregate intrinsic value                                                                 | 101,376                  |   |   |
| **Options, additional disclosures:**                                                                                                |                     |   |   |
| Service-based stock options, granted, aggregate grant date fair value                                                               | 7,607                    | 5,819 | 4,528 |
| Service-based stock options, vested, aggregate grant date fair value                                                                | 5,517                    | 4,707 | 4,259 |
| Service-based stock options, exercised, total intrinsic value of options                                                            | $ 27,760                 | $ 34,364 | $ 32,389 |

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| - Definition
Expected dividends per share included in fair value of service-based stock options assumptions
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| - Definition
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Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested, Aggregate Grant Date Fair Value
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|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Description of the period of time over which awards are generally granted.
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|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
As of the balance sheet date, the aggregate unrecognized cost of equity-based awards made to employees under equity-based compensation awards that have yet to vest.
+ References
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|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
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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|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The estimated measure of the 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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| - Definition
The risk-free interest rate assumption that is used in valuing an option on its own shares.
+ References
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| - Definition
Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.
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| - Definition
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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| - Definition
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.
+ References
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| - Definition
The total accumulated difference between fair values of underlying shares on dates of exercise and exercise price on options which were exercised (or share units converted) into shares during the reporting period under the plan.
+ References
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|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
For presentations that combine terminations, the number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan or that expired.
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| - Definition
Weighted average price of options that were either forfeited or expired.
+ References
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|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Gross number of share options (or share units) granted during the period.
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|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.
+ References
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|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of options outstanding.
+ References
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|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The number of shares reserved for issuance under stock option agreements awarded under the plan that validly exist and are outstanding as of the balance sheet date, including vested options.
+ References
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|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.
+ References
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| - Definition
Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.
+ References
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| - Definition
Weighted average price at which option holders acquired shares when converting their stock options into shares.
+ References
No definition available.
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| - Definition
Weighted average price at which grantees can acquire the shares reserved for issuance on stock options awarded.
+ References
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| - Definition
Number of share options (or share units) exercised during the current period.
+ References
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