STOCK COMPENSATION PLANS (Details) - USD ($)	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Share-based Compensation Arrangements by Share-based Payment Award
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term	6 years	6 years	6 years
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Grant Date Intrinsic Value	$ 62.18	$ 40.06	$ 33.70
Number of shares purchased by eligible employees	200,000	300,000	200,000
Fair value of the employee's purchase right	$ 59.89	$ 35.49	$ 31.84
Risk free interest rate	0.60%	1.50%	2.10%
Expected volatility	28.60%	20.30%	20.40%
Shares of common stock authorized for issuance under the employee stock purchase plan	1,800,000
The employee stock purchase plan permits employees to purchase shares of common stock at a certain percentage of the market price (in hundredths)	85.00%
Expense related to the Company's employee stock purchase plan	$ 14,600,000	$ 10,300,000	$ 9,900,000
Unrecognized compensation cost related to nonvested restricted stock and performance share-based compensation arrangements	$ 155,200,000
Performance share awards, vesting conditions	Performance share awards are subject to certain earnings per share, revenue, and total shareholder return targets
Restricted stock, vesting increment	one-third increments beginning on the first anniversary of the grant
Cash received by the Company	$ 6,800,000	17,500,000	27,600,000
Share-based Payment Arrangement, Exercise of Option, Tax Benefit	1,700,000	4,600,000	6,900,000
Aggregate intrinsic value	$ 13,400,000	18,500,000	24,500,000
Unrecognized compensation cost weighted average expected future recognition period (in years)	2 years
Restricted stock and performance share compensation expense	$ 135,400,000	98,100,000	91,200,000
Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized	8,900,000
Shares available for grant under the Company's stock option plans	4,300,000
Stock option plan expense	$ 3,600,000	$ 3,400,000	$ 5,900,000
Employee Stock Purchase Plan [Member]
Share-based Compensation Arrangements by Share-based Payment Award
Risk free interest rate	0.10%	0.10%	1.90%
Expected volatility	30.00%	30.00%	20.00%
Expected dividend yield	0.00%	0.00%	0.00%
Restricted Stock and Performance Shares [Member]
Share-based Compensation Arrangements by Share-based Payment Award
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value	$ 195.39
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number	1,200,000	1,300,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value	$ 212.83	$ 170.04
Number of options granted	600,000
Weighted-average grant date fair value, granted	$ 264.84
Number of options vested	(600,000)
Weighted-average grant date fair value, vested	$ 169.47
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period	(100,000)
Stock Options [Member]
Share-based Compensation Arrangements by Share-based Payment Award
Aggregate intrinsic value, exercisable options	$ 48,100,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number	500,000	500,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price	$ 169.03	$ 148.39
Number of options granted	100,000
Weighted-average exercise price per option granted	$ 233.39
Number of options exercised	(100,000)
Weighted-average exercise price per option exercised	$ 87.88
Number of options cancelled	0
Weighted-average exercise price per option cancelled	$ 0
Weighted-average remaining contractual term of options outstanding (in years)	6 years 10 months 24 days
Aggregate intrinsic value of options outstanding	$ 70,100,000
Number of options exercisable	300,000
Weighted-average exercise price per exercisable option	$ 153.09
Weighted-average remaining contractual term, exercisable options (in years)	6 years 1 month 6 days

The expense amount recognized during the period related to the Company's employee stock purchase plan.

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The fair value of the employee's purchase right calculated using the Black-Scholes model.

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The maximum number of shares originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for purchase under the employee stock purchase plan.

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The number of shares under the employee stock purchase plan purchased by eligible employees during the period.

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The percentage of the market price of common stock participating employees are able to purchase company stock.

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The noncash expense that represents the cost of restricted stock and performance shares distributed to employees as compensation.

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Description of performance share award terms as to how many shares or portion of an award are no longer contingent on satisfaction of certain performance conditions, thereby giving the employee the legal right to convert the award to shares, to sell the shares, and be entitled to the cash proceeds of such sale.

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Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

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Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Amount of tax benefit from exercise of option under share-based payment arrangement.

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Amount of cash inflow from exercise of option under share-based payment arrangement.

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Description of service or performance condition required to be met for earning right to award under share-based payment arrangement. Includes, but is not limited to, combination of market, performance or service condition.

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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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Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event.

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The number of grants made 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).

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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).

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The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options.

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

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The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.

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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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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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The 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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Number of additional shares authorized for issuance under share-based payment arrangement.

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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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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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Weighted average price of options that were either forfeited or expired.

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

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The grant-date intrinsic 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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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Amount by which current fair value of underlying stock exceeds exercise price of fully vested and expected to vest exercisable or convertible options. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

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Number of fully vested and expected to vest exercisable options that may be converted into shares under option plan. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

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Weighted-average exercise price, at which grantee can acquire shares reserved for issuance, for fully vested and expected to vest exercisable or convertible options. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

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

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Expected term of award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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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.

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Weighted average remaining contractual term for fully vested and expected to vest exercisable or convertible options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

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

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