XML 29 R32.htm IDEA: XBRL DOCUMENT v2.4.0.6
Income Taxes (Details) (USD $)
3 Months Ended 6 Months Ended
Sep. 30, 2012
Sep. 30, 2011
Sep. 30, 2012
Sep. 30, 2011
Income Tax [Line Items]        
Effective income tax rate 28.00% 275.00% 30.00% 70.00%
Federal statutory income tax rate     35.00% 35.00%
Non-deductible portion of charge for European Commission fine       $ 40,000,000
Charge for European Commission fine and interest in Italy $ 0 [1] $ 49,091,000 [1] $ 0 [1] $ 49,091,000 [1]
Excluding Impact of Charge for European Commission Fine [Member]
       
Income Tax [Line Items]        
Effective income tax rate   29.00%   31.00%
[1] Item is not included in segment operating income, but is included in consolidated operating income.