Earnings per Share Earnings per Share (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended	6 Months Ended
Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Loss per Share [Abstract]
Net income (loss) to common shareholders	$ 3,204	$ (9,143)	$ 18	$ (26,183)
Weighted Average Number of Shares Outstanding, Basic	18,833	18,711	18,803	18,663
Incremental Common Shares Attributable to Stock Options	74	0	61	0
Incremental Common Shares Attributable to Deferred Compensation	124	0	134	0
Earnings Per Share, Basic	$ 0.17	$ (0.49)	$ 0.00	$ (1.40)
Weighted Average Number of Shares Outstanding, Diluted	19,031	18,711	18,998	18,663
Earnings Per Share, Diluted	$ 0.17	$ (0.49)	$ 0.00	$ (1.40)
Anti-dilutive stock equivalent awards not included in the calculation of diluted loss per share	1,635	2,206	1,287	2,201

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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- Definition

The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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- Definition

The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

+ References+ Details

- 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.

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- Definition

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.

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