Share-based Compensation Arrangement by Share-based Payment Award, Expected Term

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- Definition

Share-based Compensation Arrangement by Share-based, Period in Force

+ References

No definition available.

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- Definition

Share-base Payment, Performance Period

+ References

No definition available.

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- Definition

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 14.F)
-URI http://asc.fasb.org/extlink&oid=27013229&loc=d3e301413-122809

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(1)(i)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

Face amount or stated value per share of common stock.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(29))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

Unrecognized cost of unvested share-based compensation awards.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (i)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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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

Unrecognized cost of unvested options awarded to employees as compensation.

+ References

No definition available.

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- Definition

The total recognized tax benefit related to compensation cost for equity-based payment arrangements recognized in income during the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(1)(i)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

Estimated period over which an employee is required to provide service in exchange for the equity-based payment award, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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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

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(iii)(1)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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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).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
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- Definition

Price of a single share of a number of saleable stocks of a company.

+ References

No definition available.

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- Definition

Percentage of vesting of share-based compensation awards.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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Share-Based Payments (General Descriptions) (Details) - USD ($) $ / shares in Units, $ in Millions		3 Months Ended		6 Months Ended
	Feb. 17, 2016	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016	Jun. 20, 2008	Jun. 25, 2004
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Expected Term				10 years
Period in force, from which option holders may elect to sell back acquired shares				90 days
Closing stock price (in usd per share)		$ 319.62		$ 319.62
Compensation cost not yet recognized		$ 15.4	$ 4.8	$ 15.4	$ 4.8
Pre-tax compensation cost (benefit) recognized		3.6	(1.3)	4.3	(2.8)
Compensation cost (benefit), tax expense (benefit)		(1.2)	$ 1.0	1.5	$ 0.5
Compensation cost related to nonvested options not yet recognized		$ 6.6		$ 6.6
Weighted average period over which the compensation is expected to be recognized (in years)				1 year 4 months 24 days
Class A
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock, par value (usd per share)		$ 0.01		$ 0.01		$ 0.01
Director
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage (in percentage)				20.00%
Requisite service period of awards (in years)				1 year	1 year
Employees
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Requisite service period of awards (in years)				3 years
1995 Plan \| Class A
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock, par value (usd per share)								$ 1.00
Share-based payments, number of shares authorized under plans (in shares)								300,000
2008 Plan \| Class A
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based payments, number of shares authorized under plans (in shares)							300,000
SAR
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grants in period (in shares)
SAR \| Officer
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grants in period (in shares)		203	0	11,715	14,643
SAR \| Director
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grants in period (in shares)		0	0	0	0
PSU
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grants in period (in shares)
PSU \| Officer
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grants in period (in shares)		101	0	4,526	5,727
PSU \| Director
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grants in period (in shares)		0	0	0	0
RSU
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grants in period (in shares)
Vesting period (in years)	3 years
Performance period (in years)	3 years
RSU \| Officer
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grants in period (in shares)		51	0	2,725	3,661
RSU \| Director
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grants in period (in shares)		0	2,563	1,660	2,563