Performance Awards Earned

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Discount Rate

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- Definition

Share-Based Compensation Arrangement By Share-Based Payment Award, Maximum Shares To Be Earned

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- Definition

Share-Based Compensation Arrangement By Share-Based Payment Award, Percentage Of Target Number Of Shares

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No definition available.

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- Definition

Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Exercise Price Premium

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No definition available.

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- Definition

Share-based Compensation Arrangements by Share-based Payment Award, Options, Post-Exercise Holding Requirement

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No definition available.

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- Definition

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

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- Definition

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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- Definition

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

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- Definition

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

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2A
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-URI http://asc.fasb.org/extlink&oid=116856206&loc=SL79508275-113901

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3255-108585

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- Definition

Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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- Definition

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.

+ References

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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.

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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.

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- Definition

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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No definition available.

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- Definition

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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- Definition

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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- Definition

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

+ References

No definition available.

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- Definition

Percentage of vesting of award under share-based payment arrangement.

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- Definition

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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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition

Fair value of options vested. Excludes equity instruments other than options, for example, but not limited to, share units, stock appreciation rights, restricted stock.

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STOCK-BASED COMPENSATION - Narrative - Stock Options (Details) - USD ($)	1 Months Ended	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
STOCK-BASED COMPENSATION
Proceeds from stock options exercised		$ 7,700,000
Exercise of option, tax benefit		$ 700,000
Weighted average fair value (in dollars per share)		$ 116.08	$ 167.10	$ 150.55
Fair value of options vested		$ 5,800,000	$ 6,900,000	$ 11,400,000
Performance measurement period two \| Minimum
STOCK-BASED COMPENSATION
Return performance, percent of target stock price				41.00%
Stock Options
STOCK-BASED COMPENSATION
Unrecognized compensation cost	$ 25,500,000	$ 25,500,000
Weighted-average period for recognition of unrecognized compensation cost		4 years
Intrinsic value of stock options exercised		$ 6,800,000	$ 50,200,000	$ 268,300,000
Granted (in dollars per share)		$ 290.27
Dividend yield		0.00%	0.00%	0.00%
Stock Options \| Chairman and Chief Executive Officer
STOCK-BASED COMPENSATION
Granted (in dollars per share)	$ 300
Exercise price premium	25.00%
Post-exercise holding requirement period	2 years
Expected term	6 years 10 months 24 days
Dividend yield	0.00%
Expected volatility rate	52.00%
Risk free rate	0.92%
Discount rate	8.80%
Stock Options \| Minimum
STOCK-BASED COMPENSATION
Expected term		5 years	5 years	5 years
Stock Options \| Maximum
STOCK-BASED COMPENSATION
Expected term		6 years 3 months	6 years 3 months	6 years 8 months 15 days
Stock Options \| One year from the grant date
STOCK-BASED COMPENSATION
Vesting period		1 year
Stock Options \| Two years from the grant date
STOCK-BASED COMPENSATION
Vesting period		2 years
Vesting percentage		50.00%
Stock Options \| Three years from the grant date
STOCK-BASED COMPENSATION
Vesting period		3 years
Vesting percentage		33.00%
Stock Options \| Four years from the grant date
STOCK-BASED COMPENSATION
Vesting period		4 years
Vesting percentage		25.00%
Stock Options \| Six years from the grant date
STOCK-BASED COMPENSATION
Vesting period		6 years
Performance Options
STOCK-BASED COMPENSATION
Unrecognized compensation cost	$ 58,200,000	$ 58,200,000
Weighted-average period for recognition of unrecognized compensation cost		2 years 9 months 18 days
Weighted average fair value (in dollars per share)		$ 142.54	$ 230.81	$ 296.80
Granted (in dollars per share)		$ 298.05
Expected term		7 years	7 years
Dividend yield		0.00%	0.00%	0.00%
Dividends		$ 0	$ 0	$ 0
Return performance, percent of target stock price			81.00%
Maximum number of shares for earned (in shares)			27,132
Performance awards earned (in shares)	481,669	481,669
Performance Options \| Chairman and Chief Executive Officer
STOCK-BASED COMPENSATION
Granted (in dollars per share)	$ 300
Exercise price premium	25.00%
Post-exercise holding requirement period	2 years
Expected term	7 years 6 months 14 days
Dividend yield	0.00%
Expected volatility rate	52.00%
Risk free rate	0.92%
Discount rate	8.80%
Performance Options \| Minimum
STOCK-BASED COMPENSATION
Expected term				7 years
Return performance, percent of target stock price			41.00%
Performance Options \| Maximum
STOCK-BASED COMPENSATION
Expected term				7 years 1 month 24 days
Performance Options \| Performance measurement period one
STOCK-BASED COMPENSATION
Return performance, percent of target stock price	81.00%	81.00%		110.00%
Maximum number of shares for earned (in shares)	31,940	31,940		52,332
Performance Options \| Performance measurement period one \| Minimum
STOCK-BASED COMPENSATION
Return performance, percent of target stock price	41.00%	41.00%		70.00%
Performance Options \| Performance measurement period two
STOCK-BASED COMPENSATION
Return performance, percent of target stock price	135.00%	135.00%		81.00%
Maximum number of shares for earned (in shares)	363,464	363,464		21,982
Performance Options \| Performance measurement period two \| Minimum
STOCK-BASED COMPENSATION
Return performance, percent of target stock price	81.00%	81.00%