Employee service share based compensation allocation of unrecognized period costs capitalized amount.

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- Definition

Increase in stock compensation expense due to the restricted stock awards granted.

+ References

No definition available.

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- Definition

Percentage Of Performance Based Shares Received Based On Most Recent Fiscal Year Results

+ References

No definition available.

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- Definition

Performance percentage criteria.

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- Definition

Reduction in Allocated Share-Based Compensation Expense and Capitalized Cost

+ References

No definition available.

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- Definition

Restricted Stock Awards Granted In Period for Performance Shares

+ References

No definition available.

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- Definition

Vesting period for shareholder rights plan.

+ References

No definition available.

+ Details

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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.

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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.

+ Details

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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

-Subparagraph (a)(3)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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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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Stock-Based Compensation (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2013	May. 06, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost related to unvested awards	$ 19.1	$ 19.1
Unrecognized compensation cost, expected to be capitalized	3.4	$ 3.4
Weighted average years over which this cost will be recognized		9 months 7 days
Vesting Period For Shareholder Rights Plan		3 years
Reduction in Allocated Share-Based Compensation Expense and Capitalized Cost	$ 3.0
Increase in stock compensation expense due to the restricted stock awards granted		$ 6.8
Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance percentage criteria		0.00%
Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance percentage criteria		150.00%
Stock Appreciation Rights (SARs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted		0	0
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized					4,500,000
Shares granted		750,290	452,110
Performance Shares [Member] \| Cliff Vest First Half Of 2018 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted		148,081
Restricted stock awards granted in period, percent		50.00%
Percentage Of Performance Based Shares Received Estimated to Vest		0.00%
Performance Shares [Member] \| Cliff Vest First Half of 2017 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted			71,674
Restricted stock awards granted in period, percent			40.00%
Percentage Of Performance Based Shares Received Estimated to Vest		67.00%
Performance Shares [Member] \| Cliff Vest First Half of 2016 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted				57,405
Restricted stock awards granted in period, percent				30.00%
Percentage Of Performance Based Shares Received Estimated to Vest		11.00%
Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options granted		0	0