Percentage of Shares Vested after Meeting Certain Conditions

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- Definition

Share-based Compensation Adjustment

+ References

No definition available.

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- Definition

Share based compensation arrangement by share based payment award number of shares authorized but not issued.

+ References

No definition available.

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- Definition

Unrecognized cost of unvested share-based compensation awards.

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- Definition

Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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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.

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- Definition

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

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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).

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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

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- Definition

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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- Definition

Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.

+ 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 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).

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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

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.

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- Definition

Number of fully vested and expected to vest options outstanding that can 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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- Definition

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

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- Definition

The number of employees affected by the modification of an equity-based compensation plan.

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- Definition

Percentage of vesting of share-based compensation awards.

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- Definition

Number of options vested.

+ References

No definition available.

+ Details

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Stock-Based Compensation (Narrative) (Details) $ / shares in Units, $ in Thousands	1 Months Ended		3 Months Ended	12 Months Ended
	Jul. 31, 2018 USD ($) employee	May 31, 2018 USD ($)	Mar. 31, 2018	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($) $ / shares shares	Dec. 31, 2017 USD ($) $ / shares shares	Dec. 31, 2016 USD ($) $ / shares shares	Dec. 31, 2015 shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock authorized and reserved for issuances					6,830,000
Shares authorized but not issued					2,626,000
Total intrinsic value of options and SOSARs exercised \| $					$ 35,907	$ 4,296	$ 15,946
Shares granted					741,000	304,000	460,000
Performance shares granted					141,000	127,000	90,000
Outstanding, end of year, shares					224,000	213,000	125,000	116,000
Shares vested, fair value \| $					$ 13,509	$ 3,524	$ 2,787
Units forfeited					91,000	31,000	74,000
Grant date fair value \| $ / shares					$ 305.00	$ 436.36	$ 509.05
Non-vested and expected to vest, shares					2,107,000
Stock Options And SOSARs [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unearned compensation \| $					$ 34,826
Weighted average period					1 year 8 months 12 days
Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period					3 years
Outstanding, end of year, shares					70,000
Units forfeited					62,000
Grant date fair value \| $ / shares					$ 328.74
Performance Shares [Member] \| 2017 Stock Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted						36,000
Performance Shares [Member] \| 2016 Stock Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance shares granted							73,000
Vesting period							3 years
Performance Shares [Member] \| 2015 Stock Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance shares granted						29,000
Performance Shares [Member] \| Vesting Period 1 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of Shares Vested after Meeting Certain Conditions			66.60%
Performance Shares [Member] \| Vesting Period 2 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of Shares Vested after Meeting Certain Conditions			33.30%
Performance Shares Grant 1 [Member] \| 2017 Stock Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted-average grant date fair value \| $ / shares						$ 485.53
Vesting period						3 years
Performance Shares Grant 2 [Member] \| 2017 Stock Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted-average grant date fair value \| $ / shares						$ 427.61
Vesting period						3 years
Performance SOSARs [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted					0	0	0
Performance SOSARs that have met Performance Conditions [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
SOSARs that have met the performance conditions					253,000
Non-Vested Stock Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted-average grant date fair value \| $ / shares					$ 305.00
Unearned compensation \| $					$ 33,113
Weighted average period					1 year 7 months 6 days
Non-vested and expected to vest, shares					141,000
SOSAR and RSU [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation adjustment \| $	$ 6,900	$ 5,360
Number of employees affected by modified service requirements \| employee	340
Modified service requirements expense \| $					$ 6,705
Performance Shares With Market Conditions [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance shares granted					0
Scenario, Forecast [Member] \| SOSAR and RSU [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Modified service requirements expense \| $				$ 200
Minimum [Member] \| Performance Shares [Member] \| 2018 Stock Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage					0.00%
Minimum [Member] \| Performance Shares [Member] \| Vesting Period 3 [Member] \| 2016 Stock Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage							0.00%
Minimum [Member] \| Performance Shares Grant 1 [Member] \| Vesting Period 1 [Member] \| 2017 Stock Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage						0.00%
Minimum [Member] \| Performance Shares Grant 2 [Member] \| Vesting Period 2 [Member] \| 2017 Stock Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage						0.00%
Maximum [Member] \| Performance Shares [Member] \| 2018 Stock Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage					300.00%
Maximum [Member] \| Performance Shares [Member] \| Vesting Period 3 [Member] \| 2016 Stock Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage							400.00%
Maximum [Member] \| Performance Shares Grant 1 [Member] \| Vesting Period 1 [Member] \| 2017 Stock Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage						350.00%
Maximum [Member] \| Performance Shares Grant 2 [Member] \| Vesting Period 2 [Member] \| 2017 Stock Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage						300.00%