Share based compensation arrangement by share based payment award, award payable period.

No definition available.

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- Definition

Vested undistributed restricted stock units.

+ References

No definition available.

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- Definition

Vested phantom shares payable in cash rather than converted to shares.

+ 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
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- Definition

Amount, after tax, of expense for award under share-based payment arrangement.

+ References

No definition available.

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- Definition

Aggregate carrying value as of the balance sheet date of the liabilities for stock option plans and other equity-based compensation arrangements.

+ References

No definition available.

+ Details

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- Definition

Amount of cost not yet recognized for nonvested award 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
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-Paragraph 2
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-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

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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.

+ References

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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

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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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://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
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-Paragraph 2
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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

Date the equity-based award expires, in CCYY-MM-DD format.

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-Publisher FASB
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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

Number of shares authorized for issuance under share-based payment arrangement.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
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- Definition

The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

+ References

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- Definition

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

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- Definition

Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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- Details

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- Details

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Share-Based Compensation Plans (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares outstanding	261,100	602,500
Adjusted share-based compensation cost	$ 8.4	$ 12.9	$ 9.8
Share-based compensation cost, net of tax	6.3	$ 9.6	$ 5.9
Total unrecognized compensation cost	$ 12.5
Total unrecognized compensation cost, weighted-average period	1 year 9 months 18 days
RSUs Liability Awards [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares accounted for liability awards	0	5,680
PSUs Liability Awards [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares accounted for liability awards	895	1,742
Performance Stock Awards [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares granted	58,430	69,669
RSUs [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares accounted for liability awards	65,400	100,300
Number of shares granted	34,900
2016 LTIP [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares authorized	8,949,000
Shares available for grant	3,456,997
Plan expiration date	Jul. 08, 2026
2016 LTIP [Member] \| Employee Stock Option [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Award vesting period	3 years
Award expiration period	10 years
2016 Director Stock Unit Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares authorized	550,000
Shares available for grant	179,496
2016 Director Stock Unit Plan [Member] \| RSUs [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Award vesting period	1 year
Number of shares granted	9,981	13,058
Number of shares outstanding	140,417	163,564
Vested director stock units	130,436	150,506
2006 Phantom Stock Unit Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares available for grant	0
Vested phantom shares	11,773
Award payable period	6 months
Total liability recorded for shares	$ 1.0
2006 Phantom Stock Unit Plan [Member] \| Minimum [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Award vesting period	1 year
2006 Phantom Stock Unit Plan [Member] \| Maximum [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Award vesting period	3 years