Investments in and Loan Receivables from Affiliated Companies (Schedule of Investments in and Loan Receivables) (Details) (JPY ¥) In Millions	Mar. 31, 2011	Mar. 31, 2010
Total Investments and loan receivables from affiliated companies	¥ 16,569	¥ 15,945
Affiliated Entity [Member]
Investments	16,335	15,667
Loan receivables	¥ 234	¥ 278

Long-Term advances receivable form a party that is affiliated with the reporting entity by means of direct or indirect ownership. This does not include advances to clients.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 04
-Paragraph 2
-Article 6

Name:	us-gaap_AdvancesToAffiliate
Namespace Prefix:	us-gaap
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant