Intangible Assets and Goodwill (Tables)

9 Months Ended

Dec. 31, 2012

Intangible Assets And Goodwill Disclosure [Abstract]

Components of intangible assets

	December 31, 2012			March 31, 2012
Amortizable asset management contracts
Cost	$	205,791		$	206,411
Accumulated amortization	(182,868		)	(172,974		)
Net	22,923			33,437
Indefinite–life intangible assets
U.S. domestic mutual fund management contracts	2,106,351			2,502,351
Permal funds-of-hedge fund management contracts	626,000			947,000
Other fund management contracts	304,377			304,278
Trade names	52,800			69,800
	3,089,528			3,823,429
Intangible assets, net	$	3,112,451		$	3,856,866

Fair Value Inputs, Assets, Quantitative Information [Table Text Block]

	Projected Cash Flow Growth Rates
	Range	Average	Discount Rates
Domestic mutual funds contracts asset	3% to 9%	6%	14.5%
Permal funds-of-hedge funds contracts and trade name assets	(1)% to 17%	8%	16.0%

Estimated amortization expense

Remaining 2013	$	3,505
2014	11,835
2015	2,920
2016	2,663
2017	2,000
Thereafter	—
Total	$	22,923

Changes in carrying value of goodwill

	Gross Book Value			Accumulated Impairment			Net Book Value
Balance as of March 31, 2012	$	2,436,945		$	(1,161,900	)	$	1,275,045
Impact of excess tax basis amortization	(16,189		)	—			(16,189		)
Other, including changes in foreign exchange rates	(10,208		)	—			(10,208		)
Balance as of December 31, 2012	$	2,410,548		$	(1,161,900	)	$	1,248,648