XML 53 R41.htm IDEA: XBRL DOCUMENT  v2.3.0.11
Basis of Presentation (Details Textual) (USD $)
Jun. 30, 2011
Dec. 31, 2010
Jun. 30, 2010
Jun. 30, 2010
Correction [Member]
Dec. 31, 2008
Correction [Member]
Dec. 31, 2007
Correction [Member]
Basis of Presentation (Textuals)            
Decrease to deferred income tax liabilities         $ (6,129,000)  
Goodwill 3,097,016,000 3,097,016,000 3,096,300,000 [1] 2,321,000 2,321,000  
Increase in current taxes payable         8,450,000  
Deferred income tax liabilities 762,406,000 849,448,000 843,408,000 [1] 6,706,000   (14,785,000)
Retained earnings $ 1,385,208,000 $ 1,512,863,000 $ 1,610,835,000 [1] $ (14,785,000)   $ 14,785,000
[1] As Restated, See Note 1