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Supplemental Cash Flow Information (Schedule Of Supplemental Information Related To Statements Of Cash Flows) (Detail) (JPY ¥)
In Millions, unless otherwise specified
12 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Mar. 31, 2011
Supplemental Cash Flow Information [Abstract]      
Interest ¥ 5,642 ¥ 4,732 ¥ 6,914
Income taxes 37,876 20,515 44,207
Retirement of treasury stock 19,152    
Obtaining assets by entering into capital leases ¥ 772 ¥ 471 ¥ 201