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.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

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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

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

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-Section 50

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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

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-SubTopic 10

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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 remaining contractual term for option awards 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

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

+ References

No definition available.

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The floor of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range.

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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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Equity-Based Compensation (Summary Of Ranges Of Outstanding And Exercisable Options) (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding	622,124	711,624	770,499	629,781
Weighted Average Remaining Contractual Life (in years)	5 years 3 months 18 days
Weighted Average Exercise Price	$ 11.00	$ 9.70	$ 9.97
Options Exercisable	511,374
$ 8.90 - $8.90 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise Price Range, Lower Range Limit	$ 8.90
Options Outstanding	70,625
Weighted Average Remaining Contractual Life (in years)	6 years 8 months 12 days
Weighted Average Exercise Price	$ 8.90
Options Exercisable	48,125
Options Exercisable, Weighted Average Exercise Price	$ 8.90
$ 9.74 - $9.74 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise Price Range, Lower Range Limit	$ 9.74
Options Outstanding	173,875
Weighted Average Remaining Contractual Life (in years)	7 years 8 months 12 days
Weighted Average Exercise Price	$ 9.74
Options Exercisable	85,625
Options Exercisable, Weighted Average Exercise Price	$ 9.74
$ 11.89 - $18.78 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise Price Range, Lower Range Limit	$ 11.89
Options Outstanding	173,525
Weighted Average Remaining Contractual Life (in years)	4 years 7 months 10 days
Weighted Average Exercise Price	$ 15.58
Options Exercisable	173,525
Options Exercisable, Weighted Average Exercise Price	$ 15.58
$ 20.52 - $23.78 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise Price Range, Lower Range Limit	$ 20.52
Options Outstanding	204,099
Weighted Average Remaining Contractual Life (in years)	3 years 4 months 6 days
Weighted Average Exercise Price	$ 22.56
Options Exercisable	204,099
Options Exercisable, Weighted Average Exercise Price	$ 22.56