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Earnings Per Share Narrative (Details) (USD $)
In Millions, except Share data, unless otherwise specified
12 Months Ended 3 Months Ended 6 Months Ended 3 Months Ended 6 Months Ended
Jun. 30, 2012
Dec. 31, 2004
Class 6(B) [Member]
Jun. 30, 2012
Class 6(B) [Member]
Jun. 30, 2012
Tranche B [Member]
Dec. 31, 2004
Tranche B [Member]
Jun. 30, 2012
Options [Member]
Jun. 30, 2011
Options [Member]
Jun. 30, 2012
Options [Member]
Jun. 30, 2011
Options [Member]
Jun. 30, 2012
Warrant [Member]
Jun. 30, 2011
Warrant [Member]
Jun. 30, 2012
Warrant [Member]
Jun. 30, 2011
Warrant [Member]
Earnings Per Share, Basic and Diluted, by Common Class, Including Two Class Method [Line Items]                          
Anti-dilutive securities           0 104,020 0 104,020 0 0 0 0
Stock issued, number of shares   9,800,000                      
Warrants issued to creditors of Fleming pursuant to reorganization   990,616     247,654                
Proceeds from issuance of warrants   $ 0                      
Exercise price of warrants   $ 20.93     $ 15.50                
Cumulative net issuance of stock for exercised warrants 696,385   550,873 145,512                  
Warrants outstanding 0