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Income Taxes (Schedule of Effective Income Tax Rate Reconciliation) (Details)
3 Months Ended 12 Months Ended
Jun. 30, 2014
Mar. 31, 2017
Mar. 31, 2016
Mar. 31, 2015
Income Tax Disclosure [Abstract]        
Statutory tax rate   35.00% 35.00% 35.00%
State income taxes, net of federal benefit   0.30% 0.30% 0.30%
Dividends received from deconsolidated operations   (2.30%) (1.50%) (1.30%)
Remeasurement effect   0.40% (1.60%) (4.90%)
Tax benefit arising from payment of a portion of the European Commission Fine by a subsidiary 5.00% (0.00%) (0.00%) (5.00%)
Other, including changes in liabilities recorded for uncertain tax positions   0.10% (0.70%) (0.10%)
Effective income tax rate   33.50% 31.50% 24.00%