Surrendered Shares In Shares

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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 outflow to satisfy grantee's tax withholding obligation for award under share-based payment arrangement.

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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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No definition available.

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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

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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.

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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

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- Definition

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

+ References

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- Definition

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

+ References

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- Definition

Number of options outstanding, including both vested and non-vested options.

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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No definition available.

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- Definition

Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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- Definition

Weighted average price at which option holders acquired shares when converting their stock options into shares.

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No definition available.

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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

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

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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.

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- Definition

Number of shares issued during the period related to Restricted Stock Awards, net of any shares forfeited.

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- Definition

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

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CAPITAL STOCK AND SHARE-BASED COMPENSATION - Stock Option Activity (Details) - USD ($) $ / shares in Units, $ in Thousands		12 Months Ended
	Aug. 10, 2020	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Number of Shares
Outstanding, beginning balance (shares)		875,974
Granted (shares)		43,249
Exercise of stock options (in shares)		622,829
Canceled, forfeited or expired (shares)		(18,353)
Outstanding, ending balance (shares)		278,041	875,974
Exercisable (shares)		89,429
Weighted Average Exercise Price
Outstanding, beginning balance (usd per share)		$ 49.62
Granted (usd per share)		209.41
Exercised (usd per share)		31.60
Canceled, forfeited or expired (usd per share)		103.89
Outstanding, ending balance (usd per share)		111.27	$ 49.62
Exercisable (usd per share)		$ 76.40
Weighted Average Contractual Life (Years)
Outstanding, weighted average contractual life (years)		7 years 8 months 4 days	6 years 3 months 3 days
Exercisable, weighted average contractual life (years)		6 years 9 months
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Exercise of stock options (in shares)		622,829
Payments Related to Tax Withholding for Share-based Compensation		$ 54,493	$ 9,556	$ 6,570
Executive Stock Option Exercise [Member]
Number of Shares
Exercise of stock options (in shares)	500,000
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Issuance/(cancellation) of non-vested stock (shares)	268,317
Surrendered Shares In Shares	231,683
Exercise of stock options (in shares)	500,000
Tax benefit from stock option exercise		24,000
Payments Related to Tax Withholding for Share-based Compensation		$ 40,400