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SHARE-BASED AWARDS (Details) (USD $) In Thousands, except Share data, unless otherwise specified |  | 12 Months Ended | 0 Months Ended | 12 Months Ended | 3 Months Ended | 12 Months Ended
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Dec. 31, 2013 | Dec. 31, 2013 Stock options | Dec. 31, 2012 Stock options | Dec. 31, 2011 Stock options | Jan. 28, 2010 2007 Plan | Dec. 31, 2013 2007 Plan item | Dec. 31, 2013 2007 Plan Discretionary Grant Program | Mar. 31, 2013 2007 Plan Stock Issuance Program Performance Vesting | Dec. 31, 2013 2007 Plan Stock options | Dec. 31, 2013 2007 Plan Stock options Discretionary Grant Program | Dec. 31, 2013 2007 Plan Performance-Based Restricted Stock Units Stock Issuance Program | Dec. 31, 2013 2007 Plan Time-Based Restricted Stock Units Stock Issuance Program | Dec. 31, 2013 2007 Plan Restricted Stock Units | Dec. 31, 2013 2007 Plan Restricted Stock Units Automatic Grant Program | Dec. 31, 2013 1998 Plan Stock options | Dec. 31, 2013 Predecessor Plans 1998 Plan Stock options | Dec. 31, 2013 Predecessor Plans 1998 Plan Performance-Based Restricted Stock Units | Dec. 31, 2013 Predecessor Plans 1998 Plan Time-Based Restricted Stock Units | Dec. 31, 2013 Predecessor Plan 1998 Directors' Plan Stock options
Share-based awards |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock initially available for future issuance (in shares) |  |  |  |  |  | 2,200,000 |  |  |  |  |  |  | 8,700,000 |  |  |  |  |  |
Common stock available for future issuance (in shares) |  |  |  |  |  |  |  |  |  |  |  |  | 6,400,000 |  |  |  |  |  |
Additional shares of authorized for issuance |  |  |  |  | 2,200,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of shares to be issued upon exercise of outstanding options, warrants and rights | 1,200,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of separate incentive compensation programs |  |  |  |  |  | 4 |  |  |  |  |  |  |  |  |  |  |  |  |
Number of share based compensation plans within the entity's incentive compensation programs |  |  |  |  |  | 3 |  |  |  |  |  |  |  |  |  |  |  |  |
Minimum exercise price as a percentage of fair market value of common stock |  |  |  |  |  |  |  |  |  | 100.00% |  |  |  |  |  |  |  |  |
Exercisable period |  |  |  |  |  |  | 3 years |  |  |  |  |  |  |  |  |  |  |  | 3 years
Vesting period of awards granted |  |  |  |  |  |  |  |  |  |  | 3 years | 3 years |  | 3 years |  | 3 years | 1 year | 3 years |
Average ROIC, period for measurement |  |  |  |  |  |  |  | 3 years |  |  |  |  |  |  |  |  |  |  |
TSR modifier, period for measurement |  |  |  |  |  |  |  | 3 years |  |  |  |  |  |  |  |  |  |  |
Weighted percentage of the entities comprising each index considered for calculation of total shareholder return |  |  |  |  |  |  |  | 50.00% |  |  |  |  |  |  |  |  |  |  |
Continuous service period for vesting of shares issuable on the basis of the performance-vesting criteria |  |  |  |  |  |  |  | 3 years |  |  |  |  |  |  |  |  |  |  |
Expiration Term |  |  |  |  |  |  |  |  |  | 10 years |  |  |  |  |  | 10 years |  |  |
Period of time within for an option to be exercised for eligibility for reload feature and new stock option grant |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 5 years |  |  |
Ratio to convert original option price under reload feature |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1.5 |  |  |
Number of shares that can be purchased with the annual option |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 8,000
Options granted, weighted average grant-date fair value (in dollars per share) |  |  | $ 10.74 | $ 8.92 |  |  |  |  |  |  |  |  | $ 26.66 |  |  |  |  |  |
Weighted average valuation assumptions |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Expected volatility (as a percent) |  |  | 31.80% | 29.20% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Expected term |  |  | 6 years 1 month 6 days | 6 years |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Risk-free interest rate (as a percent) |  |  | 1.20% | 2.30% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Dividend yield (as a percent) |  |  | 2.70% | 3.10% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Activity in the entity's stock option plans |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Outstanding, beginning of period (in shares) |  | 1,353,000 |  |  |  |  |  |  | 954,000 |  |  |  |  |  | 253,000 |  |  |  | 146,000
Exercised (in shares) |  | (155,000) |  |  |  |  |  |  | (106,000) |  |  |  |  |  | (43,000) |  |  |  | (6,000)
Forfeited and expired (in shares) |  | (6,000) |  |  |  |  |  |  | (4,000) |  |  |  |  |  | (2,000) |  |  |  |
Outstanding, end of period (in shares) |  | 1,192,000 | 1,353,000 |  |  |  |  |  | 844,000 |  |  |  |  |  | 208,000 |  |  |  | 140,000
Exercisable (in shares) |  | 1,010,000 |  |  |  |  |  |  | 662,000 |  |  |  |  |  | 208,000 |  |  |  | 140,000
Granted (in shares) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 |  |  | 0
Weighted average exercise price |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Outstanding, weighted average exercise price, beginning of period (in dollars per share) |  | $ 21.15 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Exercised, weighted average exercise price (in dollars per share) |  | $ 20.48 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Forfeited and expired, weighted average exercise price (in dollars per share) |  | $ 21.05 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Outstanding, weighted average exercise price, end of period (in dollars per share) |  | $ 21.24 | $ 21.15 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Exercisable, weighted average exercise price (in dollars per share) |  | $ 21.08 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Outstanding, weighted average contractual life |  | 4 years 8 months 12 days |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Exercisable, weighted average contractual life |  | 4 years 2 months 12 days |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Outstanding, aggregate intrinsic value (in dollars) |  | $ 6,033 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Exercisable, aggregate intrinsic value (in dollars) |  | $ 5,273 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |

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- Definition Gross number of share that can be purchased with the annual option. + References No definition available. + Details
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- Definition Represents information pertaining to the period over which average annual return on invested capital is measured in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition Represents information pertaining to the period over which total shareholder return is measured in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition Represents the number of shares to be issued upon exercise of outstanding options, warrants and rights under the equity-based compensation plan. + References No definition available. + Details
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- Definition Represents information pertaining to the weighted percentage of the entities comprising each index considered for calculation of total shareholder return under share-based compensation. + References No definition available. + Details
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- Definition The period of time within for an option to purchase shares is exercised for eligibility to participate in a reload feature if payment is made in shares of the entity's stock. + References No definition available. + Details
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- Definition Estimated period over which an employee is required to provide service in exchange for the equity-based payment award, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + 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 (a)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition 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. + 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 (a)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition 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). + 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)(2)(iii)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition 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. + 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 (a)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition 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. + 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 (f)(2)(iii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition 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. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 14.D.2) -URI http://asc.fasb.org/extlink&oid=27013229&loc=d3e301413-122809 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2)(i) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 14 -Section D -Subsection 2 + Details
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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. + 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 (f)(2)(ii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The risk-free interest rate assumption that is used in valuing an option on its own shares. + 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 (f)(2)(iv) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Number of additional shares authorized for issuance under an established share-based compensation plan. + References No definition available. + Details
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- Definition 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). + 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 (a)(3) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition 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. + References Reference 1: 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 + Details
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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. + References Reference 1: 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 + Details
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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 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 + Details
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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 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)(iii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition 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. + References Reference 1: 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 + Details
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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. + 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)(iv)(3)-(4) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Weighted average price of options that were either forfeited or expired. + 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)(iv)(3)-(4) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Gross number of share options (or share units) granted during the period. + References No definition available. + Details
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- Definition Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding. + References Reference 1: 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 + Details
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- Definition Number of options outstanding, including both vested and non-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 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 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)-(ii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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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 Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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