Acceleration of Share-Based compensation expense recognition due to retirements of plan participants

No definition available.

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- Definition

The weighted average fair value at grant for nonvested share-based awards issued during the period on other than stock option plans (for example, phantom stock plan, stock appreciation rights plan, performance target plan).

+ References

No definition available.

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- Definition

The weighted average fair value as of the grant date of share-based award plans other than stock option plans that were not exercised or put into effect during the reporting period as a result of the occurrence of a terminating event specified in the contractual agreement of the plan.

+ References

No definition available.

+ Details

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- Definition

The number of shares issued under a share-based award plan pertaining to grants made during the period on other than stock option plans (for example, phantom stock plan, stock appreciation rights plan, performance target plan).

+ References

No definition available.

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- Definition

Amount of consolidated retained earnings that represent undistributed earnings of 50% or less owned by persons accounted for by the equity method

+ References

No definition available.

+ Details

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- Definition

The decrease in the number of shares potentially issued under a share-based award plan pertaining to awards for which the grantee has gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares, other instruments, or cash in accordance with the terms of the arrangement.

+ References

No definition available.

+ Details

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- Definition

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

+ References

No definition available.

+ Details

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- Definition

The weighted average fair value of nonvested awards on share-based plans excluding option plans (for example, phantom stock plan, stock appreciation rights plan, revenue or profit achievement stock award plan) for which the employer is contingently obligated to issue equity instruments or transfer assets to an employee who has not yet satisfied service or performance criteria necessary to gain title to proceeds from the sale of the award or underlying shares.

+ References

No definition available.

+ Details

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- Definition

The total number of shares for a nonvested stock award or contingently issuable share award representing the target level of performance excluding forfeiture estimates

+ References

No definition available.

+ Details

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- Definition

Share-based Compensation Arrangement for the Companys Total Shareholder Return Incentive Compensation Plan, Additional Disclosures

+ References

No definition available.

+ Details

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- Definition

The maximum number of shares in the Total Shareholder Return incentive compensation plan for which the employer is contingently obligated to issue as equity instruments to employees who meet the vesting criteria, including estimated forfeitures, based on the measured return of the Companys stock price and dividend performance at the end of the measurement period, compared to the stock price and dividend performance of a group of industry peers

+ References

No definition available.

+ Details

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- Definition

The minimum number of shares in the Total Shareholder Return incentive compensation plan for which the employer is contingently obligated to issue as equity instruments to employees who meet the vesting criteria, including estimated forfeitures, based on the measured return of the Companys stock price and dividend performance at the end of the measurement period, compared to the stock price and dividend performance of a group of industry peers

+ References

No definition available.

+ Details

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- Definition

The target number of shares in the Total Shareholder Return incentive compensation plan for which the employer is contingently obligated to issue as equity instruments to employees who meet the vesting criteria, including estimated forfeitures, based on the measured return of the Companys stock price and dividend performance at the end of the measurement period, compared to the stock price and dividend performance of a group of industry peers

+ References

No definition available.

+ Details

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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 50

-Paragraph 2

-Subparagraph (h)(1)(i)

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

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 123R

-Paragraph A240

-Subparagraph g(1)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: 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

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 14

-Section F

Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 123R

-Paragraph 64

-Subparagraph b

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 6: 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=6793087&loc=d3e301413-122809

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- Definition

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

+ Details

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- Definition

The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

+ References

+ Details

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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.

+ References

+ Details

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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

The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

+ References

+ Details

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- Definition

The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

+ References

+ Details

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- Definition

For presentations that combine terminations, the number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan or that expired.

+ References

+ Details

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- Definition

Weighted average price of options that were either forfeited or expired.

+ References

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- Definition

Net number of share options (or share units) granted during the period.

+ References

+ Details

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- Definition

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

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

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

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 123R

-Paragraph A240

-Subparagraph d(1)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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- Definition

The number of shares reserved for issuance under stock option agreements awarded under the plan that validly exist and are outstanding as of the balance sheet date, including vested options.

+ References

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 123R

-Paragraph A240

-Subparagraph b(1)(b)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

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

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(1)(i)-(ii)

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

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 123R

-Paragraph A240

-Subparagraph b(1)(a)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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- Definition

Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

+ References

+ Details

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- Definition

As of the balance sheet date, the number of shares into which fully vested and expected to vest stock options outstanding can be converted under the option plan.

+ References

+ Details

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- Definition

As of the balance sheet date, the weighted-average exercise price for outstanding stock options that are fully vested or expected to vest.

+ References

+ Details

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- Definition

Weighted average remaining contractual term for fully vested and expected to vest options outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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- Definition

An excess of the fair value of the modified award over the fair value of the award immediately before the modification.

+ References

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- Definition

Weighted average price at which option holders acquired shares when converting their stock options into shares.

+ References

No definition available.

+ Details

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- Definition

Weighted average price at which grantees can acquire the shares reserved for issuance on stock options awarded.

+ References

No definition available.

+ Details

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- Definition

Weighted average exercise price as of the balance sheet date for those equity-based payment arrangements exercisable and outstanding.

+ References

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- Definition

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.

+ References

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- Definition

The number of shares reserved for issuance pertaining to the outstanding exercisable stock options as of the balance sheet date in the customized range of exercise prices for which the market and performance vesting condition has been satisfied.

+ References

+ Details

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- Definition

Number of share options (or share units) exercised during the current period.

+ 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 210.5-02.28,29)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(1)(iv)(2)

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

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Article 3

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 29, 30

-Article 5

Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644

Reference 6: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.3-04)

-URI http://asc.fasb.org/extlink&oid=6959260&loc=d3e187085-122770

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Stockholders' Equity (Details) (USD $) In Millions, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
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 Awards Vested In Period	(343,000)	(616,000)	(78,000)
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeited In Period	(1,000)	(2,000)	(86,000)
Retained Earnings Note Disclosure Abstract
Undistributed Earnings of Investees Accounted For Under Equity Method	$ 36.0
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range [Line Items]
Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Number	107,000
Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Weighted Average Exercise Price	$ 9.33
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Remaining Contractual Term	0 years 4 months 7 days
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Number Of Exercisable Options	107,000
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Exercisable Options, Weighted Average Remaining Contractual Term	0 years 4 months 7 days
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Exercisable Options Weighted Average Exercise Price1	$ 9.33
Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value	2.3
Share Based Compensation Arrangement By Share Based Payment Award Additional General Disclosures Abstract
Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant	3,100,000
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Roll Forward
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number	727,000	677,000	976,000	740,000
Restricted Stock Awards Grantedin Period	394,000	319,000	400,000
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Awards Vested In Period	(343,000)	(616,000)	(78,000)
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Award Fair Value	38.6	36.4	33.3	26.9
Restricted Stock Awards Forfeited Grant Date Fair Value	(0.1)	(0.1)	(6.3)
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Awards Vested In Period Weighted Average Grant Date Fair Value	(14.1)	(16.3)	(4.3)
Restricted Share Non Vested Grantedin Period Grant Date Fair Value	16.4	19.5	17.0
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeited In Period	(1,000)	(2,000)	(86,000)
Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Roll Forward
Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number	107,000	427,000	600,000	701,000
Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period	0	0	0
Stock Issued During Period Shares Stock Options Exercised	319,000	171,000	98,000
Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period	(1,000)	(2,000)	(3,000)
Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number	107,000	427,000	600,000
Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price	$ 9.33	$ 7.51	$ 8.11	$ 9.01
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price	$ 0	$ 0	$ 0
Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price	$ 6.89	$ 9.53	$ 14.21
Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period Weighted Average Exercise Price	$ 9.66	$ 16.52	$ 18.09
Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price	$ 9.33	$ 7.51	$ 8.11
From 3.63 to 7.00 [Member]
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range [Line Items]
Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Number	92,000
Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Weighted Average Exercise Price	$ 4.02
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Remaining Contractual Term	0 years 1 month 8 days
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Number Of Exercisable Options	92,000
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Exercisable Options, Weighted Average Remaining Contractual Term	0 years 1 month 8 days
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Exercisable Options Weighted Average Exercise Price1	$ 4.02
From 7.01 - 10.00 [Member]
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range [Line Items]
Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Number	1,000
Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Weighted Average Exercise Price	$ 7.07
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Remaining Contractual Term	1 year 4 months 5 days
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Number Of Exercisable Options	1,000
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Exercisable Options, Weighted Average Remaining Contractual Term	1 year 4 months 5 days
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Exercisable Options Weighted Average Exercise Price1	$ 7.07
From 10.01 - 15.00 [Member]
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range [Line Items]
Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Number	4,000
Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Weighted Average Exercise Price	$ 10.83
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Remaining Contractual Term	1 year 4 months 14 days
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Number Of Exercisable Options	4,000
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Exercisable Options, Weighted Average Remaining Contractual Term	1 year 4 months 14 days
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Exercisable Options Weighted Average Exercise Price1	$ 10.83
From 15.01 - 30.00 [Member]
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range [Line Items]
Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Number	3,000
Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Weighted Average Exercise Price	$ 24.38
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Remaining Contractual Term	2 years 3 months 11 days
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Number Of Exercisable Options	3,000
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Exercisable Options, Weighted Average Remaining Contractual Term	2 years 3 months 11 days
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Exercisable Options Weighted Average Exercise Price1	$ 24.38
From 30.01 - 72.46 [Member]
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range [Line Items]
Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Number	7,000
Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Weighted Average Exercise Price	$ 72.46
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Remaining Contractual Term	3 years 4 months 3 days
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Number Of Exercisable Options	7,000
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Exercisable Options, Weighted Average Remaining Contractual Term	3 years 4 months 3 days
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Exercisable Options Weighted Average Exercise Price1	$ 72.46
RestrictedStock [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Allocated Share Based Compensation Expense	15.5	21.0	12.9
Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized	14.8
Accelerated Share Based Compensation Expense		3.4
TSRP Awards [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Allocated Share Based Compensation Expense	21.3	26.5	14.9
Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized	13.7
TSRP Minimum Shares	0
TSRP Target Shares	608,000
Tsrp Maximum Shares	1,611,000
Share-based Compensation Arrangement by Share-based Payment Award, Plan Modification, Incremental Compensation Cost	1.5	5.0
TSRP 2012-2014 [Member] \| TSRP Awards [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized	6.7
TSRP Minimum Shares	0
TSRP Target Shares	212,000
Tsrp Maximum Shares	423,000
Tsrp Award Fair Value	10.0
Target Share Award Level	230,113
TSRP 2010-2012 [Member] \| TSRP Awards [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized	0
TSRP Minimum Shares	0
TSRP Target Shares	232,000
Tsrp Maximum Shares	696,000
Tsrp Award Fair Value	26.5
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Awards Vested In Period	177,250
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Roll Forward
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Awards Vested In Period	177,250
Prsp 2010 [Member] \| RestrictedStock [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 Awards Vested In Period			321,920
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Roll Forward
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Awards Vested In Period			321,920
Prsp 2008 [Member] \| RestrictedStock [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 Forfeited In Period			66,483
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Roll Forward
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeited In Period			66,483
TSRP 2011-2013 [Member] \| TSRP Awards [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized	7.0
TSRP Minimum Shares	0
TSRP Target Shares	164,000
Tsrp Maximum Shares	492,000
Tsrp Award Fair Value	$ 20.9