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Earnings Per Share (Schedule Of Reconciliation Of Shares Used To Compute Earnings Per Share) (Details) In Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Earnings Per Share
Weighted average shares outstanding used to compute basic net income per share	11,692	13,563	12,215	13,580
Incremental shares issuable upon the assumed exercise of stock options	15	41	16	41
Unvested restricted stock	30	100	32	95
Shares used to compute diluted earnings per share	11,737	13,704	12,263	13,716

X

- Definition

Incremental Common Shares Attributable To Unvested Restricted Stock Arrangements

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- Definition

Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of share based payment arrangements using the treasury stock method.

+ References

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-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 128
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- Definition

The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.

+ References

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Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.

+ References

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