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Stock Repurchased During Period, Net Cash Value

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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

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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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)(i)-(ii)

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

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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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-Publisher FASB

-Name Accounting Standards Codification

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-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (a)(3)

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- Definition

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

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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

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Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

+ References

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Article 3

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-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 29, 30

-Article 5

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Equity impact of the value of stock that has been repurchased during the period and has not been retired and is not held in treasury. Some state laws may mandate the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

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Amount of stock repurchase plan authorized.

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Total cost of shares repurchased divided by the total number of shares repurchased.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 30

-Section 45

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6405813&loc=d3e23239-112655

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Note 6 - Stockholders' Equity (Details) (USD $) In Millions, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Note 6 - Stockholders' Equity and Equity Compensation (Details) [Line Items]
Stock Repurchase Program, Authorized Amount	$ 20.0
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number	503,134	1,208,824	1,216,809	1,107,712
Through the Open Market Repurchase Program [Member]
Note 6 - Stockholders' Equity and Equity Compensation (Details) [Line Items]
Stock Repurchased During Period, Shares (in Shares)	860,761	1,102,454
Stock Repurchased During Period, Value	20.0	25.0
Treasury Stock Acquired, Average Cost Per Share (in Dollars per share)	$ 23.24	$ 22.68
In Connection with Equity Compensation Programs [Member]
Note 6 - Stockholders' Equity and Equity Compensation (Details) [Line Items]
Stock Repurchase Program, Authorized Amount	10.0
Stock Repurchased During Period, Shares (in Shares)	54,334	115,931
Stock Repurchased During Period, Value	1.2	2.6
Treasury Stock Acquired, Average Cost Per Share (in Dollars per share)	$ 22.62	$ 22.84
Employee Stock Option [Member]
Note 6 - Stockholders' Equity and Equity Compensation (Details) [Line Items]
Stock Repurchased During Period, Shares (in Shares)	419,643
Stock Repurchased During Period, Value	9.8
Stock Repurchased During Period, Net Cash Value	$ 1.4
Stock Awards [Member]
Note 6 - Stockholders' Equity and Equity Compensation (Details) [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number	767,540	555,025	698,869	643,117
Restricted Stock [Member]
Note 6 - Stockholders' Equity and Equity Compensation (Details) [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period	242,722	435,025	239,523
2013 Employee Plan [Member]
Note 6 - Stockholders' Equity and Equity Compensation (Details) [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in Shares)	2,895,000
2013 Employee Plan [Member] \| Employee Stock Option [Member]
Note 6 - Stockholders' Equity and Equity Compensation (Details) [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number	5,546
2013 Employee Plan [Member] \| Stock Awards [Member]
Note 6 - Stockholders' Equity and Equity Compensation (Details) [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number	512,630
2009 Employee Plan [Member]
Note 6 - Stockholders' Equity and Equity Compensation (Details) [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number	293,159
2009 Employee Plan [Member] \| Stock Awards [Member]
Note 6 - Stockholders' Equity and Equity Compensation (Details) [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number	254,910
2006 Employee Plan [Member]
Note 6 - Stockholders' Equity and Equity Compensation (Details) [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number	204,429
2006 Employee Plan [Member] \| Stock Awards [Member]
Note 6 - Stockholders' Equity and Equity Compensation (Details) [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number	0
2011 Director Plan [Member]
Note 6 - Stockholders' Equity and Equity Compensation (Details) [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in Shares)	200,000
2011 Director Plan [Member] \| Deferred Stock Units [Member]
Note 6 - Stockholders' Equity and Equity Compensation (Details) [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number	116,798
2006 Director Plan [Member] \| Deferred Stock Units [Member]
Note 6 - Stockholders' Equity and Equity Compensation (Details) [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number	50,098
2001 Director Plan [Member] \| Deferred Stock Units [Member]
Note 6 - Stockholders' Equity and Equity Compensation (Details) [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number	54,575