XML 68 R67.htm IDEA: XBRL DOCUMENT v2.4.0.6
Stock-Based Compensation (Summary Of Stock Options Outstanding And Options Exercisable) (Details) (USD $)
 12 Months Ended 12 Months Ended 12 Months Ended
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2009
Dec. 31, 2008
Dec. 31, 2011
Options Outstanding [Member]
Dec. 31, 2011
Options Exercisable [Member]
Dec. 31, 2011
15.78 [Member]
Options Outstanding [Member]
Dec. 31, 2011
15.78 [Member]
Options Exercisable [Member]
Dec. 31, 2011
22.06 [Member]
Options Outstanding [Member]
Dec. 31, 2011
22.06 [Member]
Options Exercisable [Member]
Dec. 31, 2011
18.48 [Member]
Options Outstanding [Member]
Dec. 31, 2011
18.48 [Member]
Options Exercisable [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]                        
Options Outstanding, Exercise Price             $ 15.78   $ 22.06   $ 18.48  
Options Outstanding, Number Outstanding 1,384,537 1,875,170 2,388,684 2,475,015 1,384,537   479,592   12,000   892,945  
Options Outstanding, Weighted Average Remaining Contractual Life (years) 4.40 5.40 6.10 6.90 4.4   1.2   3.0   6.2  
Options Outstanding, Weighted Average Exercise Price $ 17.58 $ 17.53 $ 17.03 $ 16.68 $ 17.58   $ 15.78   $ 22.06   $ 18.48  
Options Exercisable, Number Exercisable 396,985 257,040 317,020     396,985   58,972   9,068   328,945
Options Exercisable, Weighted Average Exercise Price $ 18.16 $ 17.92 $ 12.68     $ 18.16   $ 15.78   $ 22.06   $ 18.48