Forfeiture percentage of restricted stock

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- Definition

Maximum percetage of total shares of common stock issued and outstanding eligible to be granted to executives, selected management employees, and non employee members of board of directors.

+ References

No definition available.

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- Definition

Minimum percentage of average price during measurement period.

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- Definition

Percentage of share of non-vested stock considered as call-option.

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Percentage of share of non-vested stock considered as put-option.

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- Definition

Fair value of performance share units on grant date as determined using Monte Carlo simulation model.

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No definition available.

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Number of performance share units granted

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No definition available.

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- Definition

The highest percentage match of employees contribution to the plan.

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No definition available.

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- Definition

Share Based Compensation Arrangement By Share Based Payment Award Vesting Percentage

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- Definition

Share based compensation, maximum award percentage

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- Definition

Number of shares authorized for issuance as a result of an employee stock purchase plan.

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No definition available.

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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.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

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-SubTopic 10

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-Name Staff Accounting Bulletin (SAB)

-Number Topic 14

-Section F

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- Definition

Amount of commitment made to pay deferred cash remuneration.

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No definition available.

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- Definition

The compensation expense recognized during the period pertaining to the deferred compensation arrangement.

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-Publisher AICPA

-Name Accounting Principles Board Opinion (APB)

-Number 12

-Paragraph 6, 7

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-Topic 710

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- Definition

The amount of distributions made to the individual during the period.

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No definition available.

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- Definition

Aggregate carrying value as of the balance sheet date of the liabilities for deferred compensation arrangements payable within one year (or the normal operating cycle, if longer). Represents currently earned compensation under cash arrangements (such as a profit-sharing plan, rabbi trust, and employee contract--excluding equity-based arrangements) that is not actually paid until a later date.

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-SubTopic 10

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- Definition

The amount of the cost recognized during the period for defined contribution plans.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 70

-Section 50

-Paragraph 1

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As of the balance sheet date, the aggregate unrecognized cost of equity-based awards made to employees under equity-based compensation awards that have yet to vest.

+ References

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- Definition

Aggregate unrecognized cost of share-based awards, other than options, made to employees under an equity-based compensation plan, that have yet to vest.

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No definition available.

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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 Statement of Financial Accounting Standard (FAS)

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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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- Definition

Weighted average remaining contractual term for equity-based awards excluding options, 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 fair value of equity-based awards 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.

+ References

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- Definition

The highest percentage of annual salary that an employee is permitted to utilize with respect to the plan.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

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- Definition

Number of additional shares authorized for issuance under an established share-based compensation plan.

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No definition available.

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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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Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.

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Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The total accumulated difference between fair values of underlying shares on dates of exercise and exercise price on options which were exercised (or share units converted) into shares during the reporting period under the plan.

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- Definition

The weighted average of per share prices paid for shares purchased on the open market for issuance to employees under the plan.

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Weighted average remaining contractual term of exercisable stock options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Employee Benefit Plans (Narrative) (Details) (USD $) In Millions, except Share data, unless otherwise specified	1 Months Ended	12 Months Ended
	Jan. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Jan. 04, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share Based Compensation Arrangement By Share Based Payment Award Maximum Employer Subscription Rate		50.00%
Percentage Of Share Of Non Vested Stock Considered As Call Option		85.00%
Percentage of share of non-vested stock considered as put-option		15.00%
Stock Authorized Shares Employee Stock Purchase Plans		1,500,000
Performance Share Units Granted	89,329
Forfeitures On Restricted Stock Percentage		12.00%
Shares available for grant		6,600,000
Compensation cost related to restricted shares		$ 7.7	$ 8.4	$ 9.0
Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized		4,300,000
Allocated Share-based Compensation Expense		0.3
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized		13.2	12.0	16.8
401k plan cost		1.6	1.4	1.6
Maximum percetage of total shares of common stock issued and outstanding eligible to be granted to executives, selected management employees, and non employee members of board of directors		10.00%
Maximum excercise life		10 years
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Total Intrinsic Value		1.3	1.1	0.1
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value		0.4	1.0	0.6
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term		1 year 4 months 24 days
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Outstanding, Weighted Average Remaining Contractual Terms		2 years 2 months 12 days
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period	89,329	482,340	571,163	599,996
Share-based Compensation Arrangement by Share-based Payment Award, Per Share Weighted Average Price of Shares Purchased	$ 20.64
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Share-based Awards Other than Options	1.8
Share-based Compensation Arrangement by Share-based Payment Award, Maximum Employee Subscription Rate		5.00%
Deferred Compensation Arrangement with Individual, Distributions Paid		5.5	5.9	4.4	7.1
Deferred Compensation Arrangement with Individual, Cash Awards Granted, Amount	5.9	4.2	5.2	10.2
Deferred Compensation Arrangement with Individual, Compensation Expense		8.7	7.9	8.6
Deferred Compensation Cash-based Arrangements, Liability, Current		13.0	9.9
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Total Fair Value		6.7	6.7	5.6
2005 Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted share grants, vesting percentage		33.00%	20.00%
Vesting percentage		33.00%	20.00%
Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted share grants, vesting percentage		100.00%
Vesting percentage		100.00%
Long-Term Incentive Cash Plan 2009 Grants [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Minimum percentage of average price during measurement period		75.00%
Long-Term Incentive Cash Plan 2010 Grants [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Minimum percentage of average price during measurement period		50.00%
Non Executive [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period		139,243
Deferred Compensation Arrangement with Individual, Cash Awards Granted, Amount				4.3
Executive Officer [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period		132,910
Deferred Compensation Arrangement with Individual, Compensation Expense		7.3	6.5	6.9
Deferred Compensation Cash-based Arrangements, Liability, Current		$ 11.7	$ 8.5
Maximum Shares As Incentive Options Member
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares available for grant		2,000,000
Grant Share Amount B [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance Share Unit Market Value		$ 23.68
Performance Share Units Granted		132,910
Restricted share grants, vesting percentage		100.00%
Vesting percentage		100.00%
Maximum [Member] \| Grant Share Amount B [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum award percentage		200.00%