Conditional Target Number Of Shares Earned, Percentage

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- Definition

Performance and Market Measurement Period

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No definition available.

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- Definition

Share-based Payment Arrangement, Plan Modification, Incremental Cost, Unamortized

+ References

No definition available.

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- Definition

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 1
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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.

+ References

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- Definition

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

+ References

+ Details

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- Definition

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).

+ References

+ Details

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- Definition

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

+ References

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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.

+ References

No definition available.

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- Definition

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.

+ References

+ 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

The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

+ References

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- Definition

An excess of the fair value of the modified award over the fair value of the award immediately before the modification.

+ References

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- Definition

Number of grantees affected by modification of award under share-based payment arrangement.

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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.

+ References

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- Definition

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

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
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Stock-Based Compensation (Narrative) (Details) $ / shares in Units, $ in Thousands		6 Months Ended	12 Months Ended
	Mar. 15, 2021 shares	Jun. 30, 2021 USD ($) $ / shares shares	Dec. 31, 2020 USD ($) employee
SOSARs [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted, Weighted-Average Exercise Price \| $ / shares		$ 1,479.31
Shares granted		74,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period		8,000
Stock option exercises (shares)		291,000
Weighted-average grant date fair value \| $ / shares		$ 393.61
SOSARs [Member] \| Vesting Period 1 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period		2 years
SOSARs [Member] \| Vesting Period 2 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period		3 years
Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Units vested		44,000
Shares granted		24,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period		5,000
Weighted-average grant date fair value \| $ / shares		$ 1,472.07
Restricted Stock Units [Member] \| Vesting Period 1 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period		2 years
Restricted Stock Units [Member] \| Vesting Period 2 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period		3 years
Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Units vested		0
Units forfeited		0
Performance shares granted		18,000
Weighted-average grant date fair value \| $ / shares		$ 1,479.55
Performance and market measurement period		3 years
Performance Shares [Member] \| 2018 Stock Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Units vested	29,000
Number of employees affected by modified service requirements \| employee			7
Modified service requirements expense \| $			$ 71,441
Stock-based compensation expense \| $		$ 47,827
Modified service requirements expense, unamortized \| $		$ 23,148
Performance Shares [Member] \| Defined Minimum Targets Not Met [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Units vested		0
Minimum [Member] \| Performance Shares [Member] \| Vesting Period 1 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage		0.00%
Maximum [Member] \| Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of target number of shares to be earned if certain criteria is met		100.00%
Maximum [Member] \| Performance Shares [Member] \| Vesting Period 1 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage		300.00%