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Earnings Per Share (Narrative) (Details) (USD $)
In Thousands, except Share data, unless otherwise specified
3 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Income (Loss) from Continuing Operations $ 44,867 $ 40,538
Effect of dilutive securities 2,218,000 1,929,000
Parent Company [Member]
   
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Income (Loss) from Continuing Operations $ 46,400 $ 41,700
Employee Stock Options [Member]
   
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Stock options, weighted average exercise price $ 26.09 $ 22.41
Shares excluded from computation of earnings per share 4,700,000 8,800,000