Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Consolidated Legg Mason, Inc.
NET INCOME	$ 45,340	$ 94,939
Other comprehensive income (loss):
Foreign currency translation adjustment	(17,190)	20,664
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax	(3,007)	0
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Tax	1,889	0
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax	324	0
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Tax	203	0
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax	(2,683)	0
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net Unamortized Gain (Loss) Arising During Period, before Tax	(5,105)	1,068
Total other comprehensive income (loss)	(24,978)	21,732
COMPREHENSIVE INCOME	20,362	116,671
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Noncontrolling Interest	13,886	391
Consolidated Entity Excluding Consolidated Investment Vehicles Before Eliminations [Member]
Other comprehensive income (loss):
COMPREHENSIVE INCOME ATTRIBUTABLE TO LEGG MASON, INC.	$ 6,476	$ 116,280