XML 136 R115.htm IDEA: XBRL DOCUMENT v2.4.0.6
Shareholders' Equity (Details)
 3 Months Ended 12 Months Ended
Mar. 31, 2012
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Shares Outstanding        
Shares outstanding at beginning of year 42,650,000 42,650,000 45,976,000 45,706,000
Repurchases, shares (82,533) (374,000) (3,505,000)  
Treasury shares issued for:        
Restricted stock awards   76,000 14,000 112,000
401(k) plan   152,000 143,000 132,000
Director compensation     12,000 12,000
Employee stock options excercised   280,000 10,000 14,000
Shares outstanding at end of year   42,784,000 42,650,000 45,976,000