VIE Consolidated Balance Sheet Detail (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Mar. 31, 2015
Balance Before Consolidation of CIVs
Variable Interest Entity
Current Assets	$ 1,720,381	$ 1,880,689
Non-current Assets	5,112,414	5,151,942
TOTAL ASSETS	6,832,795	7,032,631
Current Liabilities	590,194	808,640
Non-current Liabilities	1,745,504	1,728,510
Total Liabilities	2,335,698	2,537,150
Redeemable Noncontrolling Interest	39,791	10,787
Total Stockholders' Equity	4,457,306	4,484,694
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	6,832,795	7,032,631
CIVs
Variable Interest Entity
Current Assets	59,958	56,929
Non-current Assets	0	0
TOTAL ASSETS	59,958	56,929
Current Liabilities	6,295	6,436
Non-current Liabilities	0	0
Total Liabilities	6,295	6,436
Redeemable Noncontrolling Interest	34,113	27,581
Total Stockholders' Equity	19,550	22,912
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	59,958	56,929
Eliminations
Variable Interest Entity
Current Assets	(14,799)	(15,583)
Non-current Assets	0	0
TOTAL ASSETS	(14,799)	(15,583)
Current Liabilities	(30)	(30)
Non-current Liabilities	0	0
Total Liabilities	(30)	(30)
Redeemable Noncontrolling Interest	4,574	7,152
Total Stockholders' Equity	(19,343)	(22,705)
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	(14,799)	(15,583)
Consolidated Legg Mason, Inc.
Variable Interest Entity
Current Assets	1,765,540	1,922,035
Non-current Assets	5,112,414	5,151,942
TOTAL ASSETS	6,877,954	7,073,977
Current Liabilities	596,459	815,046
Non-current Liabilities	1,745,504	1,728,510
Total Liabilities	2,341,963	2,543,556
Redeemable Noncontrolling Interest	78,478	45,520
Total Stockholders' Equity	4,457,513	4,484,901
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$ 6,877,954	$ 7,073,977