Consolidated Balance Sheets - USD ($) $ in Thousands		Jun. 30, 2017	Mar. 31, 2017
Common Stock, Par or Stated Value Per Share		$ 0.10	$ 0.10
Receivables:
Fixed assets, net		$ 156,008	$ 159,662
Current Liabilities
REDEEMABLE NONCONTROLLING INTERESTS		$ 684,203	$ 677,772
STOCKHOLDERS' EQUITY
Common Stock, Shares Authorized		500,000,000	500,000,000
Common Stock, Shares, Issued		94,119,547	107,011,664
Consolidated Entity Excluding Consolidated Investment Vehicles Before Eliminations [Member]
Current Assets
Cash and Cash Equivalents		$ 491,301	$ 733,709
Receivables:
Investment securities	[1]	394,960	423,619
Other current assets		74,942	74,102
Current Liabilities
Other current liabilities		89,573	117,863
Consolidated Investment Vehicles [Member]
Current Assets
Cash and Cash Equivalents		679	651
Receivables:
Investment securities		81,401	49,901
Other current assets		2,266	0
Other non-current assets		9,968	9,987
Current Liabilities
Other current liabilities		1,750	736
Consolidated Legg Mason, Inc.
Current Assets
Restricted cash		15,152	16,046
Receivables:
Investment advisory and related fees		480,269	433,192
Other receivables		64,631	70,527
Total Current Assets		1,605,601	1,801,747
Fixed assets, net		156,008	159,662
Intangible assets, net		3,999,526	4,034,380
Goodwill		1,924,211	1,924,889
Deferred income taxes		202,823	202,843
Other non-current assets		156,292	156,907
TOTAL ASSETS		8,054,429	8,290,415
Current Liabilities
Accrued compensation		285,320	486,679
Accounts Payable and Accrued Liabilities, Current		194,755	181,793
Business Combination, Contingent Consideration, Liability, Current		14,986	22,316
Total Current Liabilities		586,384	809,387
Deferred compensation		103,624	87,757
Deferred income taxes		320,113	329,229
Business Combination, Contingent Consideration, Liability, Noncurrent		5,711	14,494
Other non-current liabilities		137,768	138,737
Long-term Debt		2,221,853	2,221,867
TOTAL LIABILITIES		3,375,453	3,601,471
REDEEMABLE NONCONTROLLING INTERESTS		684,203	677,772
STOCKHOLDERS' EQUITY
Common stock, par value $.10; authorized 500,000,000 shares; issued 107,700,310 shares in December 2015 and 111,469,142 shares in March 2015		9,412	9,573
Additional paid-in capital		2,311,752	2,385,726
Employee stock trust		(24,122)	(24,057)
Deferred compensation employee stock trust		24,122	24,057
Retained earnings		1,741,362	1,694,859
AOCI Including Portion Attributable to Noncontrolling Interest, before Tax		(95,994)	(106,784)
TOTAL STOCKHOLDERS' EQUITY		3,994,773	4,011,172
Stockholders' Equity Attributable to Parent		3,966,532	3,983,374
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY		8,054,429	8,290,415
Management Equity Plan [Member] | Royce [Member]
STOCKHOLDERS' EQUITY
Stockholders' Equity Attributable to Noncontrolling Interest	[2]	$ 28,241	$ 27,798

[1] Excludes $36,026 and $28,300 of seed capital as of June 30, 2017, and March 31, 2017, respectively, which is related to Legg Mason's investments in CIVs. See Note 13.

[2] (2) Related to Royce management equity plan.