Commitments and Contingencies (Tables)

6 Months Ended

Sep. 30, 2016

Commitments and Contingencies Disclosure [Abstract]

Schedule Of Future Minimum Rental Payments For Operating Leases

Remaining fiscal 2017	$	75,986
2018	128,093
2019	101,476
2020	90,793
2021	83,971
Thereafter	265,215
Total(1)	$	745,534

Lease Liability Reserve Roll Forward [Table Text Block]

Balance as of March 31, 2015	$	45,939
Accrued charges for vacated and subleased space (1) (2)	14,642
Payments, net	(12,689		)
Adjustments and other	4,348
Balance as of March 31, 2016	52,240
Accrued charges for vacated and subleased space (1) (2)	9,069
Payments, net	(8,278		)
Adjustments and other	(4,440		)
Balance as of September 30, 2016	$	48,591

(1) Included in Occupancy expense in the Consolidated Statements of Income

(2) Includes $9,069 and $7,212related to the restructuring of Permal for the combination with EnTrust for the six months ended September 30, 2016 and the year ended March 31, 2016, respectively. See Note 3 for additional information.

Schedule of Business Acquisitions by Acquisition, Contingent Consideration [Table Text Block]

	RARE Infrastructure			Martin Currie			QS Investors			Fauchier			Other(2)		Total
Acquisition Date	October 21, 2015			October 1, 2014			May 30, 2014			March 13, 2013			Various
Maximum Remaining Contingent Consideration(1)	$	81,231		$	421,840		$	23,400		$	25,959		$	5,499	$	557,929
Contingent Consideration Liability
Balance as of March 31, 2015	$	—		$	70,114		$	13,553		$	27,117		$	—	$	110,784
Initial purchase accounting accrual(3)	25,000			—			—			—			2,457		27,457
Payment	—			—			—			(22,765		)	—		(22,765		)
Fair value adjustments	—			(28,361		)	—			(5,014		)	—		(33,375		)
Foreign exchange and accretion	2,145			(531		)	196			662			12		2,484
Balance as of March 31, 2016	27,145			41,222			13,749			—			2,469		84,585
Initial purchase accounting accrual	—			—			—			—			2,000		2,000
Payment	—			—			(6,587		)	—			—		(6,587		)
Fair value adjustments	(7,000		)	(18,000		)	—			—			—		(25,000		)
Foreign exchange and accretion	354			(3,425		)	96			—			30		(2,945		)
Balance as of September 30, 2016	$	20,499		$	19,797		$	7,258		$	—		$	4,499	$	52,053
Balance Sheet Classification
Current Contingent consideration	$	3,747		$	5,568		$	—		$	—		$	2,000	$	11,315
Non-current Contingent consideration	16,752			14,229			7,258			—			2,499		40,738
Balance as of September 30, 2016	$	20,499		$	19,797		$	7,258		$	—		$	4,499	$	52,053

(1) Using the applicable exchange rate as of September 30, 2016, for amounts denominated in currencies other than the U.S. dollar.

(2) Includes amounts related to the acquisition of Financial Guard on August 17, 2016 and PK Investments on December 31, 2015.

(3) Using the applicable exchange rate on the date of acquisition for amounts denominated in currencies other than the U.S. dollar.