Quarterly report pursuant to Section 13 or 15(d)

Business and Summary of Significant Accounting Principles (Weighted Average Shares outstanding which are contingent) (Details)

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Business and Summary of Significant Accounting Principles (Weighted Average Shares outstanding which are contingent) (Details)
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Jun. 30, 2012
Jun. 30, 2011
Class of Stock [Line Items]        
Weighted Average Number of Shares, Contingently Issuable 58 50 58 50