XML 72 R148.htm IDEA: XBRL DOCUMENT v2.4.0.6
Income Taxes - Effective Income Tax Rate Reflected in Consolidated Statements of Income (Detail)
12 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Mar. 31, 2011
Income Taxes [Line Items]      
Our effective statutory tax rate 38.00% 41.00% 41.00%
Changes in deferred tax valuation allowance (0.70%) (22.50%) 1.60%
Taxable items to be added on financial profit 1.50% 3.80% 5.30%
Non-deductible expenses 12.90% 23.30% 16.60%
Non-taxable revenue (9.30%) (29.70%) (8.40%)
Dividends from foreign subsidiaries 0.20% 0.90% 0.00%
Tax effect of undistributed earnings of foreign subsidiaries 0.20% (1.10%) 0.00%
Different tax rate applicable to income (loss) of foreign subsidiaries 10.00% 14.10% 10.80%
Effect of changes in domestic tax laws 0.90% 45.70%   
Expiration of loss carryforwards 1.30% 2.80% 1.30%
Tax benefit recognized on the devaluation of investment in subsidiaries and affiliates    (8.80%) (1.30%)
Other 0.50% (0.20%) (1.10%)
Effective tax rate 55.50% 69.30% 65.80%