Earnings Per Share (EPS) (Details) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2012	Mar. 31, 2011
Weighted-average common shares outstanding
Weighted-average common shares outstanding	129,593	129,078
Dilutive effect of
Stock options/SOSARs
Other stock compensation plans
Weighted-average common shares outstanding, assuming dilution	129,593	129,078
Antidilutive common stock equivalents
Antidilutive common stock equivalents	4,747	5,695
Earnings Per Share (EPS) (Textual)
Shares excluded from diluted weighted-average common shares outstanding computation due to operating losses	461	322

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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