Minimum number of months nonemployment required for grants on nonqualified stock options to directors.

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- Definition

Share-Based Compensation Arrangement By Share Based Payment Award, Equity Instruments Other Than Options, Vested In Period, Total Intrinsic Value

+ References

No definition available.

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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)

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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.

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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.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (h)(1)(i)

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- Definition

The noncash expense that represents the cost of restricted stock or unit distributed to employees as compensation.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (b)

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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.

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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

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-Publisher FASB

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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).

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- Definition

The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.

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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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-SubTopic 10

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-Paragraph 2

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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.

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- Definition

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

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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

Ratio applied to the conversion of stock split, for example but not limited to, one share converted to two or two shares converted to one.

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-Publisher FASB

-Name Accounting Standards Codification

-Glossary Stock Split

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-Name Accounting Standards Codification

-Topic 505

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Stock Based Compensation - Narrative (Details) (USD $) In Millions, except Share data, unless otherwise specified	0 Months Ended	12 Months Ended
	Jun. 15, 2012	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Minimum number of months nonemployment required for grants on nonqualified stock options to directors		12 months
Share-Based Compensation Arrangement By Share Based Payment Award, Equity Instruments Other Than Options, Vested In Period, Total Intrinsic Value		$ 0.6
Options outstanding			2,500
Stock split	2	2
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price			$ 63.37
2003 Long-Term Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized		2,040,897
Shares available for grant		1,570,776
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation expense		1.2	1.7	4.6
Total recognized tax benefit		0.4	0.6	1.7
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Requisite service period of the award		3 years
Non-Vested Restricted Stock And Restricted Stock Unit Awards(RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of RSUs granted		136,949	60,422
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value		$ 9.49	$ 16.08	$ 36
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value		$ 26.80	$ 28.75	$ 20
Unearned compensation expense		$ 0.5
Weighted average period of unearned compensation expense related to non-vested restricted stock and RSU awards cost is expected to be recognized		20 months 15 days
Maximum [Member] \| Employee Restricted Stock Units(RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Requisite service period of the award		5 years
Maximum [Member] \| Non-Employee Restricted Stock Units(RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Requisite service period of the award		2 years
Minimum [Member] \| Employee Restricted Stock Units(RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Requisite service period of the award		2 years
Minimum [Member] \| Non-Employee Restricted Stock Units(RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Requisite service period of the award		1 year