Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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-Name Emerging Issues Task Force (EITF)

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-Paragraph 4

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-Publisher FASB

-Name Accounting Standards Codification

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-Name Accounting Standards Codification

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+ Details

- Definition

Total number of shares issued during the period, including shares forfeited, as a result of Restricted Stock Awards.

+ References+ Details

Earnings Per Share (Details 2) In Thousands, unless otherwise specified	12 Months Ended
	Mar. 31, 2013 EPS calculation	Mar. 31, 2012 EPS calculation	Mar. 31, 2012 Antidilutive shares due to proceeds from exercising exceeded price of shares [Domain] EPS calculation	Mar. 31, 2011 Antidilutive shares due to proceeds from exercising exceeded price of shares [Domain] EPS calculation	Mar. 31, 2013 Antidilutive shares due to net loss for the period EPS calculation	May 23, 2012 2.5% convertible senior notes Legg Mason Group
Restricted stock issued during period	2,185	1,370
Restricted Stock Included In Weighted-Average Shares Outstanding	1,807	1,153
Common stock issued through Equity Units transactions (in shares)		1,830
Weighted Average Shares Outstanding, Common Stock Issued Through Equity Units		1,380
Number of antidilutive shares excluded from EPS calculation			5,239	5,204	5,730
Debt Instrument, Interest Rate, Stated Percentage						2.50%