Annual report pursuant to Section 13 and 15(d)

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

v2.4.0.6
Business and Summary of Significant Accounting Principles (Shares outstanding which are contingent) (Details)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Class of Stock [Line Items]      
Weighted Average Number of Shares, Contingently Issuable 58 34 50