| **INCENTIVE PLANS AND STOCK-BASED COMPENSATION (Details 4) (USD $)In Thousands, except Share data, unless otherwise specified** | 3 Months Ended |           |
|---------------------------------------------------------------------------------------------------------------------------------|----------------|-----------|
||
| **Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]**                     |           |      |
| Options Outstanding - Number                                                                                                    | 3,089,708      | 2,907,533 |
| Options Outstanding - Weighted Average Exercise Price                                                                           | $ 35.64        | $ 32.39   |
| Options Outstanding - Intrinsic Value                                                                                           | $ 43,549       |      |
| Options Outstanding - Weighted Average Remaining Life in Years                                                                  | 6.42           |      |
| Options Exercisable - Number                                                                                                    | 2,058,631      |      |
| Options Exercisable - Weighted Average Exercise Price                                                                           | $ 31.82        |      |
| Options Exercisable - Intrinsic Value                                                                                           | 36,826         |      |
| Options Exercisable - Weighted Average Remaining Life in Years                                                                  | 5.18           |      |
| $16.15 - $22.80 [Member]                                                                                                        |           |      |
| **Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]**                     |           |      |
| Options Outstanding - Number                                                                                                    | 169,475        |      |
| Options Outstanding - Weighted Average Exercise Price                                                                           | $ 21.03        |      |
| Options Outstanding - Intrinsic Value                                                                                           | 4,861          |      |
| Options Outstanding - Weighted Average Remaining Life in Years                                                                  | 1.66           |      |
| Options Exercisable - Number                                                                                                    | 169,475        |      |
| Options Exercisable - Weighted Average Exercise Price                                                                           | $ 21.03        |      |
| Options Exercisable - Intrinsic Value                                                                                           | 4,861          |      |
| Options Exercisable - Weighted Average Remaining Life in Years                                                                  | 1.66           |      |
| $25.31 - $38.06 [Member]                                                                                                        |           |      |
| **Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]**                     |           |      |
| Options Outstanding - Number                                                                                                    | 1,993,546      |      |
| Options Outstanding - Weighted Average Exercise Price                                                                           | $ 31.90        |      |
| Options Outstanding - Intrinsic Value                                                                                           | 35,512         |      |
| Options Outstanding - Weighted Average Remaining Life in Years                                                                  | 5.49           |      |
| Options Exercisable - Number                                                                                                    | 1,728,018      |      |
| Options Exercisable - Weighted Average Exercise Price                                                                           | $ 31.81        |      |
| Options Exercisable - Intrinsic Value                                                                                           | 30,934         |      |
| Options Exercisable - Weighted Average Remaining Life in Years                                                                  | 5.18           |      |
| $40.73 - $44.07 [Member]                                                                                                        |           |      |
| **Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]**                     |           |      |
| Options Outstanding - Number                                                                                                    | 473,587        |      |
| Options Outstanding - Weighted Average Exercise Price                                                                           | $ 43.00        |      |
| Options Outstanding - Intrinsic Value                                                                                           | 3,176          |      |
| Options Outstanding - Weighted Average Remaining Life in Years                                                                  | 8.83           |      |
| Options Exercisable - Number                                                                                                    | 161,138        |      |
| Options Exercisable - Weighted Average Exercise Price                                                                           | $ 43.31        |      |
| Options Exercisable - Intrinsic Value                                                                                           | 1,031          |      |
| Options Exercisable - Weighted Average Remaining Life in Years                                                                  | 8.90           |      |
| $49.91 [Member]                                                                                                                 |           |      |
| **Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]**                     |           |      |
| Options Outstanding - Number                                                                                                    | 453,100        |      |
| Options Outstanding - Weighted Average Exercise Price                                                                           | $ 49.91        |      |
| Options Outstanding - Intrinsic Value                                                                                           | 0              |      |
| Options Outstanding - Weighted Average Remaining Life in Years                                                                  | 9.79           |      |
| Options Exercisable - Number                                                                                                    | 0              |      |
| Options Exercisable - Weighted Average Exercise Price                                                                           | $ 0.00         |      |
| Options Exercisable - Intrinsic Value                                                                                           | $ 0            |      |
| Options Exercisable - Weighted Average Remaining Life in Years                                                                  | 0.00           |      |

| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The total dollar difference between fair values of the underlying shares reserved for issuance and exercise prices of vested portions of options outstanding and currently exercisable under the option plan as of the balance sheet date.
+ References
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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.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph b(1)(c), d(2) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.  This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901
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| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        |
|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - 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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| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The weighted average period between the balance sheet date and expiration for all vested portions of options outstanding and currently exercisable (or convertible) under the plan, which may be expressed in a decimal value for number of years.
+ References
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| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            |
|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The total dollar difference between fair values of the underlying shares reserved for issuance and exercise prices pertaining to options outstanding under the plan as of the balance sheet date.
+ 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
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph b(1)(a) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.  This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph b(1)(b) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.  This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901
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|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The weighted average price as of the beginning of the year at which grantees can acquire the shares reserved for issuance under the stock option plan.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph b(1)(a) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.  This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(i) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901
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| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The weighted average period between the balance sheet date and expiration for all awards outstanding under the plan, which may be expressed in a decimal value for number of years.
+ References
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